Jeti

Jeti 6 channel full-range receiver compatible with JETI EX & EX Bus protocols. Supports telemetry functions.

Additional features:

• PPM input
• PPM output
• Integrated expander for EX & EX Bus devices
• UDI digital output

JETI Duplex receivers are designated for use with the DC/DS transmitters or the JETI transmitter modules in the 2.4 GHz frequency band.
The receivers support online updates so that everyone is able to install the latest software versions. From the very beginning bidirectional transmission has been a distinctive feature of the Duplex system, this not only handles telemetry data, but it also helps to ensure secure primarily transmission safety between the transmitter and receiver.
The Duplex EX telemetry system uses an open protocol. This gives the advantage of compatibility with a large number of telemetry sensors from both JETI model and third party producers. For the display of telemetry data you can use purposely designed equipment like the JETIBOX profi and DC/DS transmitters or you can display the data on PCs.
The REX receivers are fully compatible with the previous generation of the Duplex equipment.

Specification:

• Weight [g] 11
• Dimensions [mm]    38 x 25 x 11
• Number of channels 6
• Telemetry Yes
• Operational temperature [°C]     -10 ... 85
• Compatible protocols     DUPLEX 2.4GHz EX, EX Bus
• Antenna Length [mm] 2 x 100
• Supply Voltage [V] 3,5 - 8,4
• Average Current [mA] 75
• Satellite receiver support Yes
• Output Power [dBm] 15
• Receiver Sensitivity [dBm] -106
   

JETI DUPLEX 2,4EX Alu-Case for Transmitter DC
 
Contains:

• Aluminium Transmitter suitcase
• 2 keys
• Foam material application fitting to DS Transmitter
   

JETI DUPLEX 2,4EX Alu-Case for Transmitter DS-16 and DS-14
 
Contains:

• Aluminium Transmitter suitcase
• 2 keys
• Foam material application fitting to DS Transmitter
   

 DUPLEX 2,4EX Transmitter-Battery Power Ion 5200 for Transmitter DC/DS

The Jeti Duplex MUI 75 is a voltage and current telemetry sensor, compatible with all Jeti Duplex receivers and expanders, suitable for measuring currents up to 75A and voltages up to 60V.

Using this sensor it is possible to view on your Jeti Box, the overall pack voltage, the motor run time and the capacity drawn from your flight battery as well as the present amp draw of your power system! You can also set alarms for:

•   Low voltage
•   High amps
•   Consumed capacity (mAh)

This sensor should be connected between the power systems battery pack and the speed controller, in order to provide a pass-through to measure the current drain of your power set.

Two additional wires are used to measure battery pack voltage.

An audible alarm can be configured via the Jeti Box to provide an alert when the flight battery voltage drops below a configurable minimum or when the current draw exceeds a configurable maximum. An alarm can also be configured for the battery capacity. The alarm sound is emitted from the duplex transmitter module.

Please note, the maximum current capability of this sensor is 75 amps. This sensor is not required to view the voltage and other metrics associated with the receiver system, which is provided by all Duplex receivers, without the need for an additional sensor.

The MUI 75 sensor weighs approximately 21 grams (0.74 ounces)

 Jeti Duplex 2.4EX R18 receiver including RSat2 satellite receiver.

Power can be supplied via the built-in MPX connector, which is compatible with the Jeti Max BEC 2, or via JR/UNI connectors. The power supply voltage required is 3.2-8.4V, but please note that this voltage is not regulated, so please ensure the input voltage is regulated appropriately according to your servo specification.

The R18 includes a single RSAT2 satellite receiver with dual antennae, which should be operated in clone mode with the PPM output mode of the satellite set to 'DIRECT' and the PPM input mode of the R18 set to PPM Input on your chosen satellite channel.

As with all Jeti Duplex 2.4GHz receivers, an audible alert can be configured so that the Duplex transmitter module emits an alarm, should the receiver supply voltage drop below a preset level. This is configurable by connecting the Jeti Box to the Tx module and this particular feature requires no additional sensors.

Complete with bind-plug and MPX plug with two pieces of heatshrink.
For a stable and reliable power source, we recommend the Max BEC range of voltage regulators. Alternatively you may wish to use two A123 LiFePO4 batteries, depending on your power requirements.

Technical Details for Jeti Duplex 2.4EX R18 Receiver

• Dimensions (mm)    62x38x16
• Antennae Count    2
• Antennae Length    400.00mm (15.75")
• Channel Outputs    18
• Temperature Range min. (°C)    -10
• Jeti Box Compatible (JBC)    Yes
• Temperature Range max. (°C)    85
• Supply Voltage min.    3.2V
• Supply Voltage max.    8.4V
• Average Current (mA)    40
• Transmission of Telemetric Data    Yes
• Satellite receiver support    Yes
• Power output (dBm)    20
• Receiver Sensitivity (dBm)    -106
• Weight    34.0g (1.2oz.)

9 channel full-range receiver compatible with JETI EX & EX Bus protocols. Supports telemetry functions. Power supply can be provided by any of the servo JR connectors.

The DUPLEX EX line of receivers is intended for operation with DUPLEX Tx transmitter modules in the 2,4GHz band and are fully compatible with the previous version of the DUPLEX. Thanks to the fully digital and bidirectional communication between transmitter and receiver there arise completely new aspects in the model remote control branch. One of the most important advantages is the operation without crystal, moreover the low susceptibility towards interference, the high range up to the limit of visibility and the possibility to follow anytime the onboard state of the model and its functional parts.
An additional satellite receiver RSat2 complements the receivers R9, R10, R11, R12, R14 and R18. This receiver is a full DUPLEX system receiver offering the complete functional spectrum of the system. Instead of classical servo pulses the output of the RSat2 receiver offers a PPM signal only. This PPM signal is furtheron processed by the receivers R9, R10, R11, R12, R14, R18 or by compatible RC equipment which requires a PPM signal at the input.

Specification

• Weight [g]:  13
• Dimensions [mm]: 48 x 23 x 10
• Number of channels: 9
• Telemetry: Yes
• Operational temperature [°C]: -10 ... 85
• Compatible protocols: DUPLEX 2.4GHz EX, EX Bus
• Antenna Length [mm]: 2 x 200
• Supply Voltage [V]: 3,2 - 8,4
• Average Current [mA]: 30
• Satellite receiver support: Yes
• Output Power [dBm]: 15
• Receiver Sensitivity [dBm]: -106

A completely new type of receiver from the REX SLIM series with 7 servo slots. The receivers are specially designed for models with very narrow fuselages (e.g. F3J, F5J, etc.).

The REX Slim receivers offer all the features of the well-known REX receiver series with a minimal cross-section.

- supported protocols: PPM, EX BUS, EX Telemetry, S.Bus

- freely programmable channel assignment of the slots

- compact dimensions

- full range

- wireless programmable via the device overview of the Duplex DC/DS transmitters

- programmable via the JETIBOX

Technical data

Dimensions: 15 x 12.5 x 60mm

Weight: 12 g

Supply voltage: 3.5 - 8.4V

Telemetry: Yes

Stabilization ASSIST: No

Servo slots: 9

Antenna length: 2x 200 mm

Scope of delivery

1 DUPLEX 2.4EX Receiver REX 9 Slim

Jeti Duplex 2.4EX R9 channel full-range receiver W/antenna 40cm

Programmable duplex 2.4EX 9 channel receiver 2.4GHz:

Bi-directional communication with the transmitter
Transfer of the telemetry data to the transmitter (read out via the JETIBOX)
Receiver supply voltage indication at the transmitter, and adjustable value for triggering an alarm
A plurality of receivers to a transmitter possible receivable up to a total of 16 channels
Adjustable Failsafe
Servo channels freely assignable
Servo lanes, center position and duration adjustable
free mixers allocation of channels
Expo the channels can be set
Activation within a quarter second after switching
Connection for sensors (8 channel expander bix to 8 sensors)
Programmable with the JETI Box directly or wireless via transmitter

DUPLEX EX is the successor of the well known and proven Jeti DUPLEX system and compatible, of course, full of the previous components .
The EX Series provides a significant extension of the possibilities for the transmission of telemetry data, in conjunction with the PROFI BOX or the Jeti transmitters in conjunction with the program package Flight Monitor receive user-friendly design a better overview of the operational status of your model, facilitating the setting of the system components and the way an easier processing, imaging and analysis capability of the (recorded) flight data

Specifications:

• Dimensions 23x48x9,5mm
• Weight     13g
• Antenna length     2x 400mm
• Outputs 9
• Temperature range -10 to 85 ° C
• Input voltage     3.2 - 8.4V
• Average power consumption 40 mA
• Real-time telemetry transmission Yes
• Programming JETIBOX
• Satellite receiver Yes
• Transmission power 20 dBm
• Receiver Sensitivity -106 dBm

Alarm settings:
With the JETI Box alarm signals can be activated at (beeps by duplex RF module in the transmitter):
Alarm waste Receiver supply below a set voltage value

By connecting a current and voltage sensor to the receiver alarm can be triggered by:

• Exceed a current value
• Undershooting of a voltage value
• Exceed a capacitance value

JETI DUPLEX 2.4EX RC Switch

RCSW - RC Switch is a wireless switch designed especially for JETI model products (BEC stabilizers, Central Box and other accessories) that increase the comfort of model control. RC Switch can be easily controlled using DC/DS transmitters and it can be simply used as a replacement of the magnetic key.

Compatible devices: SBEC 40, DPS 40, SPS 20, DSM 10, Central Box 200, Central Box 400, Master Switch etc.

Switching is indicated by a green LED that is visible through the opening on the side of the RC Switch.

Setting the polarity of the switch is specific for each JETI model product, in the chart below there is a list of several supported devices and their RC Switch settings for DC and DS transmitters.

Jeti Duplex 2.4EX Transmitter module TU2 EX

DUPLEX TU2 EX module is suitable for all transmitters, especially for those with non-exchangeable HF plug-in modules. Installation is possible into almost all types of transmitters. There are only two main requirements: A transmitter with the possibility of operation in PPM
mode and space for the module in the transmitter. If needed, Duplex TU2 EX is also possible to put in the box and fit to the transmitter.

DUPLEX TU2 EX module is an enhanced version DUPLEX TU2. Along with the mounting kit it simplifies mounting SWTU2 to the transmitters. An assembly set VOICE-1 may be better adapted to the acoustic properties after incorporation into the transmitter.

Futaba:
FC-16, FC-18 JUNIOR, T6EXH
P, 12FG, 12Z, 14MZ, FX-18, FX-14, FX-30

Hitec:  
Laser 4, Laser 6, Flash 5, Optic 6 sport

Graupner:
MC-10, MC-12, MC-14, MC-15, MC-16, MC-19, MC-22, MC-16-20,
MX-12, MX-16s

Multiplex:
Cockpit SX
Profi 3000, 4000

Aluminum case for transmitters of the DSxx series
 
Contains:

• Aluminium Transmitter suitcase
• 2 keys
• Foam material application fitting to DS Transmitter
  

Jeti DC-16 2.4Ghz Radio Duplex Mode 2/4 Tray variant of the top-class RC transmitter of JETI model. The transmitters DC-16 and DS-16 came to existence under cooperation of professional pilots and world champions. They have been developed with the aim of maximum utility, simple handling as well as maximum durability and reliability of mechanical parts. The metal case provides maximum protection of the interior as well as of the outside surfaces against chemicals and the straightforward shapes make servicing easy. Metal quad ball raced stick units with magnetic Hall sensors confirm the revolutionary design concept of this mostly strained element of a RC-System. Jeti DC16 , Mode 2/4, metal Case, Charger, Accessories This revolutionary, digital, 16 Channel, 2.4GHz, frequency hopping radio system is fully designed and manufactured by Jeti Model in the Czech republic. This is one of the most advanced radio systems on today's market. With their solid CNC aluminum case with a fully integrated antenna, a mini USB port, built-in speaker, headset jack, metal transmitter gimbals with Hall sensors (4096 step resolution) and 9 ball bearings for precision movement, a large 320x240 backlight display and many other features the Jeti DC/DS-16s are sure to become the new standard in transmitter performance. One of the attractive features of the Duplex 2.4GHz line of products is it's full integration with all Duplex telemetry sensors. You can easily observe up to 40 different parameters in real-time directly on the transmitter. Or, by using the JetiBox Profi (sold separately) you can see your data in parallel mode giving you and your copilot valuable real-time information (see video). One of the most important features of Jeti's transmitters is the gimbal and switch function assignment flexibility. With the DC/DS-16 you are free to fully customize your radio. You can swap switches or sticks (Mode 1-4) and the on-board computer will recognize your changes and assign functions anywhere you like. Other important functions are programmable Sounds/Alarms and even user-recordable sounds. This audible alarm feature was specifically designed to keep you informed while also keeping distractions to a minimum. We think this is the best way enhance both your enjoyment and your model safety. You can simply set a receiver battery capacity alarm for the desired capacity used and once that number is reached the system acoustically and visually gives you warnings Features: State-of-the-art, upgradable firmware which gives you full freedom and complete control. Solid aluminum, CNC cut transmitter case with fully integrated antenna and oversized LCD display. Mini USB port for firmware upgrades and PC download of telemetry data. Integrated speaker and 3.5mm headset jack. You can play back music and create custom voice alarms. Options are virtually unlimited. Built-in, logical switches that lets you program a complex string of control events with the simple flip of a switch. 9-point, programmable curve mixes for all 16 digital proportional channels. You can set up not just dual, but triple rates. Pre-programmed servo setups for nearly every type of wing, tail and swash plate imaginable. Unlimited use of the on-board 2GB SD card memory. Fully integrated logical switch functions. If you need to drop bombs only if your throttle is at 50% and bay doors are open, with this system you can. Your programming/mixing options are virtually unlimited. Fully integrated digital telemetry. View, process and store all your telemetry data and even wirelessly program any of the Duplex EX sensors. Create, manage and program all alarms. Enhance safety for both yourself and your model. Monitor your temperature, speed, battery voltage, receiver battery capacity and much more. All switches and channels are completely moveable and assignable. Want to move throttle to the right slider or switch several functions to just one stick? With the Jeti radio system, yes you can. Basically, you can program any stick, dial, switch or slider to generate any output you choose. Unlimited number of programmable timers. You can easily set a timer for your overall flight time, a model memory timer for the motor run of a specific model, and any number of count down/stopwatch timers that can be activated any number of ways. Specifications:

• Weight [g]     1500
• Dimensions [mm]     230 x 270 x 40
• Power Output [mW]     100
• Number of channels     14
• Number of controls     20
• Resolution     4096 steps
• Telemetry     Yes
• Operational temperature [°C]     -10 ... 60
• Operating time [h]     11
• Compatible protocols     DUPLEX 2.4GHz EX, EX Bus

Included:

• JETI DC-16 Transmitter
• Wall Power Supply 110-230V
• JETI DC-16 Transmitter Aluminum Case
• USB PC Cable
• Installation Hex Key Set (1,5mm; 2mm)
• Cleaning Cloth
• Instruction Manuals

Jeti Duplex DC-24 Limited Edition Dark Orange REX10A RSAT-900Mhz

The transmitter contain an advanced user interface that allows you almost unlimited programming. On-line and off-line telemetry are available as well as alarms, custom audio playback etc.

The design goals were maximum utility, durability, and reliability of their mechanical parts along with simple handling. The metal case, with its chemically resistant finish, provides maximum protection for the interior components. The straightforward case shape makes servicing easy. The control gimbals, ball bearing equipped with their magnetic Hall sensors are another revolutionary design concept used to make the DC/DS among the world’s most advanced R/C systems.

Purposefully placed at the top of the transmitter, the 3.5" sunlight readable color LCD with its wide viewing angle offers nearly perfect visibility in just about any lighting condition. Thanks to its high resolution display and use of a relatively large number of graphic images it was possible to create a simple and intuitive setup procedure for displaying telemetric data.

The DUPLEX EX family of products have been equipped with an improved real-time telemetry system which can be viewed on the LCD transmitter display. The transmitter allows the setup of voice notifications, both preinstalled and user created, which can be related to telemetric values, user set alarms, or signals which have been assigned to conditions of various control elements.

The DC series transmitters are designed for the Tray

Duplex 2.4GHz – the DC transmitters feature the Duplex 2.4GHz, frequency hopping, digital, data stream system. This system has been reliably used for many years.
Duplex 900MHz (I. generation) - the DC-24 transmitters feature a backup wireless system for unmatched data transmission safety and reliability. This is the first dual-band RC radio system.
Built-in Telemetry – from the start, the DC/DS transmitters were designed and built with many attractive features and include the full integration of all Duplex telemetry sensors.
Precise Gimbals – the transmitter gimbals are equipped with Hall sensors and ball bearings for precision movement with an almost unlimited lifespan.
Haptic feedback - the gimbals are equipped with stick shaking vibration motors that can be used for alarm notifications, timers etc.
LCD Display – color 3.5" TFT LCD display with 320 x 240 resolution which is highly visable under any light conditions.
Li-Ion Battery – provides a proven and reliable energy source with a high capacity (6200mAh) and a long service life.
Easy Charging – simply connect the wall power supply, optional car charger, or any 12v Dc power supply to the transmitters charge port. The DC/DS may also be charged through the USB to PC interface. The charging progress is shown on the DC/DS display.
Integrated Antenna – the antennas are located behind fully integrated covers in both the DC-24 and DS-24 cases for protection against mechanical damage.
Large Memory – Internal SD card for storing models, sounds, and telemetry data.
USB Connector – convenient connection to your PC. Fast firmware & sound upgrades, telemetry data downloads.
Fast Navigation – 3D wheel-style interface combined with function keys allow for speedy navigation within the DC/DS menu.
Digital Trims – fully programmable trims and a revolutionary automatic trimming function.
Swappable and Assignable Switches – all of the switches on the DC/DS transmitters (2- or 3-position) can be easily moved and assigned to create a custom configuration that works best for your application.
Programming – the logical and intuitive transmitter firmware is designed to be simple to use. Just follow the step-by-step screens. The creation of a new model can be accomplished with just a few easy steps.
Sounds/Alarms – the DC/DS transmitters are equipped with audible alarms and also allows the use of user-recordable alarms and sounds to keep you fully informed while also keeping distractions to a minimum.
Integrated microphone with voice recognition capability - using the integrated microphone you can easily prepare your own audio files. Furthermore, you can teach the transmitter to respond to several voice commands.
FM Tuner - allows listening to your favourite fm radio station at the field.  

• Package contents:
• 1. Limited Edition Generation I DC-24 Transmitter
• 2. Aluminum case DCII
• 3. Receiver Rsat900 I.generation
• 4. Receiver REX10 Assist
• 5. DUPLEX pad
• 6. Charger
• 7. Set of keys
• 8. Cloth DUPLEX
• 9. USB cable

The DS-14 represents Jeti's new, State-of-the-art, transmitter that sets a new quality standard for the RC Industry with its revolutionary features and brand new plastic Hall Sensor Gimbals. Jeti's final touches and finishes are outstanding. The front panel of the system is made of aluminum with UV stabilized clear coating and the case is made of painted, CNC cut, solid aluminum.

This revolutionary, digital, 14+8 (22) Channel, 2.4GHz, frequency hopping radio system is fully designed and manufactured by Jeti Model in the Czech republic. This is one of the most advanced radio systems on today's market. With their solid CNC aluminum case with a fully integrated antennas, a mini USB port, built-in speaker, headset jack, plastic transmitter gimbals with Hall sensors (4096 step resolution) and 9 ball bearings for precision movement, a large 320x240 backlight display and many other features the Jeti DS-14s are sure to become the new standard in transmitter performance.

One of the attractive features of the Duplex 2.4GHz line of products is it's full integration with all Duplex telemetry sensors. You can easily observe up to 20 different parameters in real-time directly on the transmitter. Or, by using the JetiBox Profi (sold separately) you can see your data in parallel mode giving you and your copilot valuable real-time information (see video).

One of the most important features of Jeti's transmitters is the gimbal and switch function assignment flexibility. With the DS-14 you are free to fully customize your radio. You can swap switches or sticks (Mode 1-4) and the on-board computer will recognize your changes and assign functions anywhere you like. Other important functions are programmable Sounds/Alarms and even user-recordable sounds. This audible alarm feature was specifically designed to keep you informed while also keeping distractions to a minimum. We think this is the best way enhance both your enjoyment and your model safety. You can simply set a receiver battery capacity alarm for the desired capacity used and once that number is reached the system acoustically and visually gives you warnings

Specifications and Features
State-of-the-art, upgradable firmware which gives you full freedom and complete control.Solid aluminum, CNC cut transmitter case with fully integrated antennas and oversized LCD display.Mini USB port for firmware upgrades and PC download of telemetry data.Integrated speaker and 3.5mm headset jack. You can play back music and create custom voice alarms. Options are virtually unlimited. Built-in, logical switches that lets you program a complex string of control events with the simple flip of a switch. 9-point, programmable curve mixes for all 14 digital proportional channels. You can set up not just dual, but triple rates.Pre-programmed servo setups for nearly every type of wing, tail and swash plate imaginable. Unlimited use of the on-board 4GB SD card memory. Fully integrated logical switch functions. If you need to drop bombs only if your throttle is at 50% and bay doors are open, with this system you can. Your programming/mixing options are virtually unlimited. Fully integrated digital telemetry. View, process and store all your telemetry data and even wirelessly program any of the Duplex EX sensors.Create, manage and program all alarms. Enhance safety for both yourself and your model. Monitor your temperature, speed, battery voltage, receiver battery capacity and much more. All switches and channels are completely moveable and assignable. Want to move throttle to the right slider or switch several functions to just one stick? With the Jeti radio system, yes you can. Basically, you can program any stick, dial, switch or slider to generate any output you choose. Up to 5 programmable timers. You can easily set a timer for your overall flight time, a model memory timer for the motor run of a specific model, and any number of count down/stopwatch timers that can be activated any number of ways.

Included:

• (1) Jeti Duplex DS-14 Transmitter
• (1) 110-230V Wall Power Supply
• (1) Tx Battery Li-poly 3200mAh 3.7V (1S2P)
• (1) Mini USB to USB PC Cable

Jeti Duplex DS-14 transmitter preconfigured mode 1/3

The DS-14 represents Jeti's new, State-of-the-art, transmitter that sets a new quality standard for the RC Industry with its revolutionary features and brand new plastic Hall Sensor Gimbals. Jeti's final touches and finishes are outstanding. The front panel of the system is made of aluminum with UV stabilized clear coating and the case is made of painted, CNC cut, solid aluminum.

This revolutionary, digital, 14+8 (22) Channel, 2.4GHz, frequency hopping radio system is fully designed and manufactured by Jeti Model in the Czech republic. This is one of the most advanced radio systems on today's market. With their solid CNC aluminum case with a fully integrated antennas, a mini USB port, built-in speaker, headset jack, plastic transmitter gimbals with Hall sensors (4096 step resolution) and 9 ball bearings for precision movement, a large 320x240 backlight display and many other features the Jeti DS-14s are sure to become the new standard in transmitter performance.

One of the attractive features of the Duplex 2.4GHz line of products is it's full integration with all Duplex telemetry sensors. You can easily observe up to 20 different parameters in real-time directly on the transmitter. Or, by using the JetiBox Profi (sold separately) you can see your data in parallel mode giving you and your copilot valuable real-time information (see video).

One of the most important features of Jeti's transmitters is the gimbal and switch function assignment flexibility. With the DS-14 you are free to fully customize your radio. You can swap switches or sticks (Mode 1-4) and the on-board computer will recognize your changes and assign functions anywhere you like. Other important functions are programmable Sounds/Alarms and even user-recordable sounds. This audible alarm feature was specifically designed to keep you informed while also keeping distractions to a minimum. We think this is the best way enhance both your enjoyment and your model safety. You can simply set a receiver battery capacity alarm for the desired capacity used and once that number is reached the system acoustically and visually gives you warnings

Specifications and Features
State-of-the-art, upgradable firmware which gives you full freedom and complete control.Solid aluminum, CNC cut transmitter case with fully integrated antennas and oversized LCD display.Mini USB port for firmware upgrades and PC download of telemetry data.Integrated speaker and 3.5mm headset jack. You can play back music and create custom voice alarms. Options are virtually unlimited. Built-in, logical switches that lets you program a complex string of control events with the simple flip of a switch. 9-point, programmable curve mixes for all 14 digital proportional channels. You can set up not just dual, but triple rates.Pre-programmed servo setups for nearly every type of wing, tail and swash plate imaginable. Unlimited use of the on-board 4GB SD card memory. Fully integrated logical switch functions. If you need to drop bombs only if your throttle is at 50% and bay doors are open, with this system you can. Your programming/mixing options are virtually unlimited. Fully integrated digital telemetry. View, process and store all your telemetry data and even wirelessly program any of the Duplex EX sensors.Create, manage and program all alarms. Enhance safety for both yourself and your model. Monitor your temperature, speed, battery voltage, receiver battery capacity and much more. All switches and channels are completely moveable and assignable. Want to move throttle to the right slider or switch several functions to just one stick? With the Jeti radio system, yes you can. Basically, you can program any stick, dial, switch or slider to generate any output you choose. Up to 5 programmable timers. You can easily set a timer for your overall flight time, a model memory timer for the motor run of a specific model, and any number of count down/stopwatch timers that can be activated any number of ways.

Included:

• (1) Jeti Duplex DS-14 Transmitter
• (1) 110-230V Wall Power Supply
• (1) Tx Battery Li-poly 3200mAh 3.7V (1S2P)
• (1) Mini USB to USB PC Cable

Jeti Duplex - DS16II Carbon Line Limited Edition + REX10 Blue color

Features

• 24 full control channels
• 3 HF modules (2x 2.4Ghz, 1x 900MHz optional)
• color display
• 4 types of models (surface / helicopter / multicopter / functional model)
• MP3 player
• Telemetry processes up to 64 sensor values
• Voice input commands optional

Transmitter hardware

Multimode joystick

• Determination of stick positions using Hall sensors (without potentiometer)
• Control path resolution 4096 steps
• color display, backlit
• rotating stick aggregate
• Fully aluminum joysticks / aggregates, adjustable in length, with ball bearings
• internal storage
• integrated LiIon battery for long operating time
• Charger
• Aluminum transport case
• Speech
• headphone jack
• digital trims
• anodized aluminum housing

Transmitter software

• 2.4 GHz DUPLEX EX
• 24 control channels
• customizable menu navigation
• almost unlimited setting options
• almost unlimited number of model memories
• Firmware update via USB
• ultra-fast control reactions
• Power management system for longer operating times
• PC interface
• 4 adjustable model types (airplane / helicopter / functional model; multicopter)
• 8 languages (EN / DE / CZ / FR / IT / PT / SE)

Telemetry functions

• Voice output of telemetry warnings and telemetry values
• Display of telemetry data in real time on the transmitter display
• Record telemetry data
• PC transmission, storage and processing of telemetry values??
• Saving (backup) the model data and transmitter settings on the PC

Delivery contents

JETI handheld transmitter DS-16 II Carbon Line Limited edition (delivery state mode 2, control mode very easy to change),
receiver REX 10,
transmitter battery installed,
charger for transmitter battery,
strap
stable carrying case.

* color on photo to represent the radio

Duplex revolutionary, fully digital 2.4GHz, frequency hopping radio system is fully designed and manufactured by Jeti Model in the Czech Republic. We are excited to introduce two brand new lines of REX and REX Assist Jeti Duplex 2.4GHz Receivers with built-in revolutionary features: Internal Data Telemetry Logging (Black Box), Integrated Multi (3) Input/Output Telemetry & EX Bus Expander, and New 32 Bit Microprocessors (No limits for Future Firmware Upgrades). All Jeti receiver features wireless programmable fail-safe and integrated digital telemetry (Rx Voltage, Signal Quality).

The REX Assist receivers enhance the REX series of receivers and extend it with the intelligent flight stabilization feature, which is designed for airplane models and multi-copters. This stabilization works in all three axes of the model and facilitates flying in windy or otherwise challenging conditions. Aerobatic maneuvers will be more accurate and smoother. With the help of several flight modes, which are also suitable for beginner pilots, flying practice will be really easy.

Variometer is a system that measures atmospheric pressure and using the obtained data, it calculates the altitude above sea level, airspeed, and the rate of climb as well as the rate of descent. Changes in climb and descent rates are signaled as well. The sensor also alerts you if any alarm setting is exceeded.

Features:
- Up to 16 Stabilized Individual Channels
- Different Multicopter Types, from Tricopters to Octocopters
- Up to 3 Adjustable Flight Modes, Options for Stabilizing the Horizon and Altitude
- Optional Variometer Function (Requires Software Module Purchase)
- In-flight Gyro Gain Tuning Using Available Channels
- Latest 3-axis Gyroscope, 3-Axis Accelerometer and Barometric Altimeter
- Support for External Ultrasonic Altimeter
- Support for LED Light Strip, and External Camera Gimbal
- Intelligent Fail-safe, and Vibration Analysis
- Wireless Transmitter programming and PC Support
- Available Telemetry: Rx Voltage, Signal Quality/Strength, G-Force, Attitude Orientation

The REX A receivers enhance the REX series of receivers and extend it with the intelligent flight stabilization feature, which is designed for airplane models and multicopters. This stabilization works in all three axes of the model and facilitates flying in windy or otherwise challenging conditions. Aerobatic maneuvers will be more accurate and smoother. With the help of several flight modes, which are also suitable for beginner pilots, flying practice will be really easy.

The DUPLEX EX line of receivers is intended for operation with DUPLEX Tx transmitter modules in the 2,4GHz band and are fully compatible with the previous version of the DUPLEX. Thanks to the fully digital and bidirectional communication between transmitter and receiver there arise completely new aspects in the model remote control branch. One of the most important advantages is the operation without crystal, moreover the low susceptibility towards interference, the high range up to the limit of visibility and the possibility to follow anytime the onboard state of the model and its functional parts.

An additional satellite receiver RSat2 complements the receivers R9, R10, R11, R12, R14 and R18. This receiver is a full DUPLEX system receiver offering the complete functional spectrum of the system. Instead of classical servo pulses the output of the RSat2 receiver offers a PPM signal only. This PPM signal is furtheron processed by the receivers R9, R10, R11, R12, R14, R18 or by compatible RC equipment which requires a PPM signal at the input.

DUPLEX System EX is fully compatible with the previous version of the DUPLEX.

FEATURES

- Integrated telemetry: Rotation angle on 3-axis, G-Force, temperature
- Integrated ASSIST stabilization system 
- For model airplanes and multicopter
- Integrated to connect Expander up to 3 sensors
- Protocol support: PPM, EXBUS, EX,..
- Programmable output pins
- Supports commands
- Compact dimensions
- 32 bit processor
- Full range
- Programmed via  Duplex DC/DS transmitters or with Jeti Studio via PC
- Number of output channels: up to 12- Number of EXT inputs: up to 3
- Dimensions [mm]: 51x28x11
- Weight [g]: 24- EPC (MPX) power connector

6 channel full-range receiver compatible with JETI EX & EX Bus protocols. Supports telemetry functions. Power supply can be provided by any of the servo JR connectors or by the external MPX connector.

Antenna length: 40cm

The DUPLEX EX line of receivers is intended for operation with DUPLEX Tx transmitter modules in the 2,4GHz band and are fully compatible with the previous version of the DUPLEX. Thanks to the fully digital and bidirectional communication between transmitter and receiver there arise completely new aspects in the model remote control branch. One of the most important advantages is the operation without crystal, moreover the low susceptibility towards interference, the high range up to the limit of visibility and the possibility to follow anytime the onboard state of the model and its functional parts.
An additional satellite receiver RSat2 complements the receivers R9, R10, R11, R12, R14 and R18. This receiver is a full DUPLEX system receiver offering the complete functional spectrum of the system. Instead of classical servo pulses the output of the RSat2 receiver offers a PPM signal only. This PPM signal is furtheron processed by the receivers R9, R10, R11, R12, R14, R18 or by compatible RC equipment which requires a PPM signal at the input.

DUPLEX System EX is fully compatible with the previous version of the DUPLEX.

• Weight [g]: 11
• Dimensions [mm]: 45 x 24 x 12
• Number of channels:6
• Telemetry: Yes
• Operational temperature [°C]: -10 ... 85
• Compatible protocols: DUPLEX 2.4GHz EX, EX Bus
• Antenna Length [mm]: 2 x 400
• Supply Voltage [V]: 3,2 - 8,4
• Average Current [mA]:40
• Satellite receiver support: No
• Output Power: 15 dBm
• Receiver Sensitivity: -106 dBm

JETI Duplex R7 Nano Receiver Weight [g] 1 (2) Dimensions [mm] 30 x 18 x 5 Number of channels 7 Telemetry Yes Operational temperature [°C] -10 ... 85 Compatible protocols DUPLEX 2.4GHz EX, EX Bus Antenna Length [mm] 1 x 32 Supply Voltage [V] 3,2 - 8,4 Average Current [mA] 30 Satellite receiver support No Output Power [dBm] 6 Receiver Sensitivity [dBm] -98

Jeti Duplex receiver 2.4EX R18 2.4GHz

18 channel full-range receiver compatible with Jeti EX & EX bus protocols. Support telemetry functions. Power supply is provided by MPX connector or standard JR connectors.

Additional features:
PPM input (Sat1)
PPM input or output (Sat2)
Jeti Duplex Rsat2 is included in the package

The DUPLEX EX line of receivers is Intended for surgery with DUPLEX Tx transmitter modules in the 2,4GHz band-and are fully compatible with the previous version of the DUPLEX.
Thanks to the fully digital and bidirectional communication between transmitter and receiver there arise completely Call new aspects in the model remote control branch.
One of the most important advantages is the operational without crystal, more over the low susceptibility towards interference, the high range up to the limit of visibility and the Possibility to follow anytime the onboard state of the model and its functional parts.
This PPM signal is ford heron processed by the receivers R9, R10, R11, R12, R14, R18 or by compatible RC equipment Which requires a PPM signal at the input.

DUPLEX EX system is fully compatible with the previous version of the DUPLEX.

Specification:

• Manufacturer: Jeti
• Quiescent current [mA]: 40
• Receive Sensitivity [dBm]: -106
• Antenna number: 2    2
• Antenna length [mm]: 400
• channels: 18
• Satellite receiver possible
• Real-time telemetry
• Transmission power [dBm]: 20
• Type:     duplex EX
• Rated voltage up to [V]: 8.4
• Rated voltage [V]: 3.2
• Weight [g]: 30
• Height [mm]: 16
• Width [mm]: 38
• Length [mm]: 62

Jeti Duplex receiver 2.4EX REX3 with 20cm antenna

DUPLEX EX is the successor of the well known and proven Jeti DUPLEX system and , of course, fully compatible with the existing components .
The EX Series provides a significant expansion of the possibilities of transmission of telemetric data, in conjunction with the PROFI BOX or the Jeti transmitters in conjunction with the program package Flight Monitor software user-friendly way a better overview of the operational status of your model, a facilitated setting the system components and the way a facilitated processing, imaging and analysis possibility of (recorded) flight information.

Programmable Duplex 2.4EX REX3 receiver 2.4GHz:

• bi-directional communication with the transmitter
• Transfer of telemetry data to the transmitter
• Voltage indicator Receiver supply at the transmitter and adjustable value for triggering an alarm
• multiple recipients possible at a transmitter, be received up to 16 channels
• Adjustable Failsafe
• Servo channels freely assignable
• Servo travel center position and duration adjustable
• free mixer channels are assigned
• Expo of the channels can be set  
• internal memory for data logging and
• control signals
• integrated expander for up to 3 sensors
• Supported protocols: PPM
• , EXBUS, EX, ..
• programmable features of the slots
• support the direct entries
• compact dimensions
• 32 bit processor
• full coverage
• programmable via the JETIBOX and wirelessly
• via the duplex DC / DS transmitter

Specifications:

• Dimensions: 40x22x7mm
• Weight:  7.5g
• Antenna length: 2x 400mm
• Outputs: 3
• Temperature range: -10 To 85 ° C
• Input voltage: 3.2 - 8.4V
• Average current consumption:  mA
• Real-time telemetry: Yes
• Programming: JETIBOX
• Satellite receiver: Yes
• Transmission power: 15 dBm
• Receive Sensitivity: -106 dBm

Jeti Duplex receiver 2.4EX REX3 with 40cm antenna

DUPLEX EX is the successor of the well known and proven Jeti DUPLEX system and , of course, fully compatible with the existing components .
The EX Series provides a significant expansion of the possibilities of transmission of telemetric data, in conjunction with the PROFI BOX or the Jeti transmitters in conjunction with the program package Flight Monitor software user-friendly way a better overview of the operational status of your model, a facilitated setting the system components and the way a facilitated processing, imaging and analysis possibility of (recorded) flight information.

Programmable Duplex 2.4EX REX3 receiver 2.4GHz:

• bi-directional communication with the transmitter
• Transfer of telemetry data to the transmitter
• Voltage indicator Receiver supply at the transmitter and adjustable value for triggering an alarm
• multiple recipients possible at a transmitter, be received up to 16 channels
• Adjustable Failsafe
• Servo channels freely assignable
• Servo travel center position and duration adjustable
• free mixer channels are assigned
• Expo of the channels can be set  
• internal memory for data logging and
• control signals
• integrated expander for up to 3 sensors
• Supported protocols: PPM
• , EXBUS, EX, ..
• programmable features of the slots
• support the direct entries
• compact dimensions
• 32 bit processor
• full coverage
• programmable via the JETIBOX and wirelessly
• via the duplex DC / DS transmitter

Specifications:

• Dimensions: 40x22x7mm
• Weight:  7.5g
• Antenna length: 2x 400mm
• Outputs: 3
• Temperature range: -10 To 85 ° C
• Input voltage: 3.2 - 8.4V
• Average current consumption:  mA
• Real-time telemetry: Yes
• Programming: JETIBOX
• Satellite receiver: Yes
• Transmission power: 15 dBm
• Receive Sensitivity: -106 dBm

Jeti Duplex Satellite for Type R.sub.sat 900

Only the DC 24 transmitter have a backup transmission system for the highest data transfer security and reliability.
It therefore represents the first dual-band radio system RC new generation.

Specification:

• Weight (g): 11
• Dimensions (mm): 0x22x7
• Temperature range (° C): -10 - 85
• Voltage range (V): 3.2 to 8.4
• Current consumption (mA): 30
• Frequency range (MHz):     863-870
• Logs:     EX-bus, PPM, UDI

Satellite receiver for Duplex R9, R10, R11EPC, R12EPC, R14 and Duplex R18 (connection by cable). PPM output is available on a single line.

The DUPLEX EX line of receivers is intended for operation with DUPLEX Tx transmitter modules in the 2,4GHz band and are fully compatible with the previous version of the DUPLEX. Thanks

to the fully digital and bidirectional communication between

transmitter and receiver there arise completely new aspects in the model

remote control branch. One of the most important advantages is the

operation without crystal, moreover the low susceptibility towards

interference, the high range up to the limit of visibility and the

possibility to follow anytime the onboard state of the model and its

functional parts.
An additional satellite receiver RSat2 complements

the receivers R9, R10, R11, R12, R14 and R18. This receiver is a full

DUPLEX system receiver offering the complete functional spectrum of the

system. Instead of classical servo pulses the output of the RSat2

receiver offers a PPM signal only. This PPM signal is further on

processed by the receivers R9, R10, R11, R12, R14, R18 or by compatible

RC equipment which requires a PPM signal at the input.

DUPLEX EX System is fully compatible with the previous version of the DUPLEX.

Weight [g] 6
Dimensions [mm] 38 x 20 x 7
Number of channels 16
Telemetry Yes
Operational temperature [°C] -10 ... 85
Compatible protocols DUPLEX 2.4GHz EX, EX Bus
Antenna Length [mm] 2 x 200
Supply Voltage [V] 3,2 - 8,4
Average Current [mA] 30
Satellite receiver support No
Output Power [dBm] 15
Receiver Sensitivity [dBm] -106

Transmitter tray made of black acrylic for transmitters DC-16

Ensures ergonomic and effortless control in conjunction with JETI DUPLEX 2.4EX harness even during long flight durations. Both, the DC-16 transmitter and the tray fit inside the carrying case of the DC-16. The clamps are foldable.

Jeti Encoders long for DS Transmitter (2 pcs)

Jeti Enlink 2RS

EnLink 2RS is a device for increasing safety and reliability of radio controled models to the highest level. Parallel connection of systems that are detached maximally leads to the significant increase in reliability.
EnLink2RS is constructed especially for installing to systems with parallel sorting of two receivers in the model.

Exact information about the altitude and distance of a model in space are extremely important guidance elements for the pilot who is remote controlling the model. Thanks to the GPS satellite positioning system the MGPS sensor defines the exact model position and calculates speed, altitude and distance from the point of origin, furthermore the course, azimuth and the total covered distance.
 
In order to be able to record the measured data the MGPS sensor is equipped with a memory for approximately 9 hours of uninterrupted data recording with a numerosity of one record per second (4 MB MGPS version). For a simple analysis of measured data the sensor keeps information of minima and maxima which can be browsed with the aid of the JETIBOX. A more detailed analysis of measured data can be achieved by copying data from the sensor to a PC and map depicted trajectories or carry out other analysis modes. With the aid of the wireless DUPLEX system actual information of the MGPS sensor can be transmitted and depicted in real time by the JETIBOX terminal or DC/DS transmitters.

For showing GPD data you can use link https://www.gpsvisualizer.com

Specification:
 

• Weight [g]: 24
• Dimensions [mm]: 50 x 30 x 13
• Operational temperature [°C]: -10 ... 85
• Supply Voltage [V]: 3,5 - 8,4
• Average Current [mA]: 40
• Memory [MB]: 4

Jeti hand transmitter DS-12 multimode black

A handy transmitter, high-quality construction with plastic housing, a large color display, ball bearing stick units and wear-free Hall sensors. A light weight, the quality design of the housing and a great ergonomic features of this transmitter. The software can be extended to your own preference and of course here JETI offers the full telemetry capabilities.
expected equipment, stand in February 2019 :

• Channels: 8 (up to 12 expandable)
• 2.4GHz RF modules: 1
• 900MHz backup system: Optional
• Color TFT: 3.5 inch, 320x240 pixels
• Stick units with Hall sensors: Yes
• Resolution stick: 4096
• Internal memory: SD card, 8GB
• Free mixers: 5 (up to 20 expandable)
• Stopwatches: 3 (up to 20 expandable)
• Values ​​on display represented: 10 (up to 40 expandable)
• (Expandable up to 20) 5: Spachausgabe for functions
• Alarms: 10 (up to 40 expandable)
• Channels for gyroscopic axes: 1 (up to 3 expandable)
• Phases of flight: 3 (up to 6 expandable)
• Flight phase trims: Yes
• DITEX telemetry values: 16
• Lua extensions: max. 10
• MP3 player: Yes
• Microphone: Yes

Optional equipment, stand in February 2019 :

• Logical switches: 0 (up to 16 expandable)
• Sequencer: 0 (up to 6 expandable)
• Motion sensor: optional
• Audio Player: optional
• Telemetry transmitter: 0 (up to 16 expandable)
• Vibrate: optional
• Speech: optional
• Power Balancer: optional
• Function curves: optional
• Gas Limiter: optional
• Variometer: optional

Jeti hand transmitter DS-12 multimode Blue

A handy transmitter, high-quality construction with plastic housing, a large color display, ball bearing stick units and wear-free Hall sensors. A light weight, the quality design of the housing and a great ergonomic features of this transmitter. The software can be extended to your own preference and of course here JETI offers the full telemetry capabilities.
expected equipment, stand in February 2019 :

• Channels: 8 (up to 12 expandable)
• 2.4GHz RF modules: 1
• 900MHz backup system: Optional
• Color TFT: 3.5 inch, 320x240 pixels
• Stick units with Hall sensors: Yes
• Resolution stick: 4096
• Internal memory: SD card, 8GB
• Free mixers: 5 (up to 20 expandable)
• Stopwatches: 3 (up to 20 expandable)
• Values ​​on display represented: 10 (up to 40 expandable)
• (Expandable up to 20) 5: Spachausgabe for functions
• Alarms: 10 (up to 40 expandable)
• Channels for gyroscopic axes: 1 (up to 3 expandable)
• Phases of flight: 3 (up to 6 expandable)
• Flight phase trims: Yes
• DITEX telemetry values: 16
• Lua extensions: max. 10
• MP3 player: Yes
• Microphone: Yes

Optional equipment, stand in February 2019 :

• Logical switches: 0 (up to 16 expandable)
• Sequencer: 0 (up to 6 expandable)
• Motion sensor: optional
• Audio Player: optional
• Telemetry transmitter: 0 (up to 16 expandable)
• Vibrate: optional
• Speech: optional
• Power Balancer: optional
• Function curves: optional
• Gas Limiter: optional
• Variometer: optional

Jeti hand transmitter DS-12 multimode RED

A handy transmitter, high-quality construction with plastic housing, a large color display, ball bearing stick units and wear-free Hall sensors. A light weight, the quality design of the housing and a great ergonomic features of this transmitter. The software can be extended to your own preference and of course here JETI offers the full telemetry capabilities.
expected equipment, stand in February 2019 :

• Channels: 8 (up to 12 expandable)
• 2.4GHz RF modules: 1
• 900MHz backup system: Optional
• Color TFT: 3.5 inch, 320x240 pixels
• Stick units with Hall sensors: Yes
• Resolution stick: 4096
• Internal memory: SD card, 8GB
• Free mixers: 5 (up to 20 expandable)
• Stopwatches: 3 (up to 20 expandable)
• Values ​​on display represented: 10 (up to 40 expandable)
• (Expandable up to 20) 5: Spachausgabe for functions
• Alarms: 10 (up to 40 expandable)
• Channels for gyroscopic axes: 1 (up to 3 expandable)
• Phases of flight: 3 (up to 6 expandable)
• Flight phase trims: Yes
• DITEX telemetry values: 16
• Lua extensions: max. 10
• MP3 player: Yes
• Microphone: Yes

Optional equipment, stand in February 2019 :

• Logical switches: 0 (up to 16 expandable)
• Sequencer: 0 (up to 6 expandable)
• Motion sensor: optional
• Audio Player: optional
• Telemetry transmitter: 0 (up to 16 expandable)
• Vibrate: optional
• Speech: optional
• Power Balancer: optional
• Function curves: optional
• Gas Limiter: optional
• Variometer: optional

JETI handheld transmitter DS-16 II Carbon Line Red Multimode

• 24 full control channels
• 3 HF modules (2x 2.4Ghz, 1x 900MHz optional)
• color display
• 4 types of models (surface / helicopter / multicopter / functional model)
• MP3 player
• Telemetry processes up to 64 sensor values
• Voice input commands optional

900MHz NG receiver system (optionally)
The 900MHz NG receiver system is suitable for the DS-12, DS-16 II as well as the DC-16 II transmitters. It is an independent, second transmission system in a second frequency range. If this system is used, the model can continue to be controlled even if the 2.4GHz band is disturbed (e.g. by radio relay, during copter flights for television broadcasts, etc.). The 900MHz backup system only becomes active when this occurs. So it essentially serves to expand the safety in high-quality models. Of course, this backup system can be activated or deactivated separately for each model. It is always used together with the 2.4 GHz transmission system, not individually.

Transmitter hardware

• Multimode joystick
• Determination of stick positions using Hall sensors (without potentiometer)
• Control path resolution 4096 steps
• color display, backlit
• rotating stick aggregate
• Fully aluminum joysticks / aggregates, adjustable in length, with ball bearings
• internal storage
• integrated LiIon battery for long operating time
• Charger
• Aluminum transport case
• Speech
• headphone jack
• digital trims
• anodized aluminum housing

Transmitter software

• 2.4 GHz DUPLEX EX
• 24 control channels
• customizable menu navigation
• almost unlimited setting options
• almost unlimited number of model memories
• Firmware update via USB
• ultra-fast control reactions
• Power management system for longer operating times
• PC interface
• 4 adjustable model types (airplane / helicopter / functional model; multicopter)
• 4 languages (EN / DE / CZ / FR)

Telemetry functions
Voice output of telemetry warnings and telemetry values
Display of telemetry data in real time on the transmitter display
Record telemetry data
PC transmission, storage and processing of telemetry values??
Saving (backup) the model data and transmitter settings on the PC

• Delivery contents

JETI handheld transmitter DS-16 II Carbon Line Red Multimode (delivery state mode 2, control mode very easy to change), receiver REX 10, transmitter battery installed, charger for transmitter battery, strap and stable carrying case

Jeti HiCopter 70A opto ESC

Speed controllers of HiCOPTER product line are aimed for controlling and regulating BLDC motors that are used for driving multicopters. These controllers are pre-set from the manufacturer for the cooperation with stabilization systems used in copters. The controllers accept control signal with a frequency up to 500Hz and they respond to the needed change of revolutions from control/stabilization unit of the copter.
HiCOPTER speed controllers have control signal galvanically (optically) separated from flight battery. HiCOPTER speed controllers do not allow setting any paramaters. Brakes of the controllers are generally switched off, cut-off voltage is at the lowest possible level (depending on a type) and the timing of motor is set by the speed controller automatically. Potential change in the direction of rotation can be done by exchange of any two phase cables.

Specification:
 

• Weight [g]    45
• Dimensions [mm]    70 x 26 x 11
• Sustained current [A]    70
• Telemetry    No
• Operational temperature [°C]    -20 ... 85
• Supply Voltage [V]    5 ... 25,2
• Batteries NiXX    6 ... 16
• Batteries LiXX    2 ... 6
• Batteries LiFe    2 ... 7

Jeti Joystick grips for DS Transmitter