New long range module for Turnigy 9X 9Ch Transmitter or other JR Radios.
Long range JR UHF radio system 265 USD
The new UHF RC system is based on Ham band and neighbouring band from 400mhz-470mhz, with the frequency hopping technology and frequency sweeping technology, you never need to worry about losing control of your precious plane.
Have short range trouble? this LRS has a range beyond your imagination. with a bad antenna, you may still get 20km range in the air, and with a super good 1/2 wave length one, you can even get 60km in the air.
Parameters:
RF output:1000mw-2200mw
Power comsumption: 300-600mA
Range: 20-60km in the air
Failsafe: Yes
High and low power selection: 1000mw or 2000mw output
Highspeed control: yes
Transmitter parameters:
Hardware frequency Range 400MHz to 470MHz
Frequency stability :2.5ppm
Output low-pass Filter :NONE
Band 1
Start frequency:415Mhz
Step frequency:480Khz
Channel :70
Band 2
Start frequency:433Mhz
Step frequency:30Khz
Channel :70
Output Power : 30DB Peak / 33DB Peak
Rate : 40Hz/66Hz
RF interface impedance :50 Ohm
Supply Voltage : 8.4V to 16V
Reverse battery protection:NONE
Logic Voltage :3-12V
Current :
330mA/520mA (@50 Ohm load,12V Supply Voltage)
250mA/440mA (@No-load,12V Supply Voltage)
950mA/1.6A (@RF Short circuit,12V Supply Voltage)
Temperature:50 to 70 Degrees Celsius
Receiver parameter:
Frequency Range 400MHz to 470MHz
Sensitivity : -112 DBM @0.1EBR(40Hz Refresh rate)
-111 DBM @0.1EBR(50Hz Refresh rate)
-110 DBM @0.1EBR(66Hz Refresh rate)
-108 DBM @0.1EBR(90Hz Refresh rate)
-104 DBM @0.1EBR(125Hz Refresh rate)
-104 DBM @0.1EBR(166Hz Refresh rate)
-101 DBM @0.1EBR(250Hz Refresh rate)
F/S turn on condition : >0.99EBR
Antenna gain : 2.15DBM
Step frequency :10kHz
Bandpass filter:Chip integration
Out-of-band rejection :No specific data
It can work with video and audio transmitter which frequency less than 300Mhz or higher than 500Mhz .
Refresh rate :40Hz50Hz66Hz90Hz125Hz166Hz250Hz
Hopping rate :40Hz50Hz66Hz90Hz125Hz166Hz250Hz
Hopping cycle:13Hz16Hz22Hz30Hz41Hz 55Hz 83Hz
Recover time :77mS62mS45mS33mS24mS 18mS 12mS
Response Time : 4mS to 25mS
PWM Output accuracy :0.5uS step ERROR<20PPM
PWM Output range : 0.5mS-2.5mS
PWM output cycle :55Hz @Normal mode
192Hz @Fast mode
PPM Output accuracy :0.5uS step ERROR<20PPM
PPM Output range : 0.5mS-2.5mS Each channel
PPM output cycle :50Hz@Normal mode & 1mS to 2mS Output
42Hz to 50Hz @Normal mode & 0.5mS to 2.5mS Output
50Hz to 83Hz @Fast mode & 1mS to 2mS Output
42Hz to 125Hz @Fast mode & 0.5mS to 2.5mS Output
PPM sync pulse width:4mS to 16mS Automatic adjust @Normal mode
4mS Locked @Fast mode
Recommend Supply Voltage : 3V to 8.4V
Shutdown voltage :2.1(+-0.15)V
Damage voltage :>15V
Power supply noise cancellation :<=15 VPP
Reverse breakdown voltage : >-15V
Output ports withstand voltage : >12V
Normal Current : <110mA
Operating Temperature :–40 to +80 °C
Also available as a UHF Futaba module
Comments
I fly a skywalker 1900.
I have this system on a turnigy 9x with stock firmware. I have reached 8200ft + (2.5 miles) at 350ft altitude when failsafe kicked in. Other times it kicks in to failsafe at 3000 ft. It has a lag between stick movement and control surface response that is visually noticeable but has never bothered me in flight. I have only used it on low power mode (1w) and I probably wouldn't use high power with my 1280Mhz video set up. Even with a filter on the UHF and on my vtx I still have to keep the tx antenna in just the right position to avoid interference in video. this is normal though... i also use a frsky 2.4Ghz DJT tx with d8r ii plus rx with a patch antenna on the tx. I have gone out a little over a mile with this set up when failsafe kicked in.
I admittedly have less than ideal rx antenna placement on the plane when using either system. with the frsky i just had the antennae tips pointing out of the edges of the canopy and with the rmilec i have one antenna sticking straight up between the wings and one taped to the right side of the fuse, running parallel to length, pointing towards tail.
it works for my purposes but at some point i want to optimize my set up. the issue is i place my antennas to protect them during transport and haven't found a better way yet.
I think there are people who could get a lot more range. I don't know about 20km but maybe???
if you have suggestions to test I'd be happy to do so and report back!
I know this is an old thread but I wanted to ask if anyone has real experience using this UHF JR Module with the Turnigy 9X? I have a Turnigy, flashed it with er9x and installed the backlight and the 6 position Flight Mode switch. Works great. Have a good LRS is my next step in FPV world.
Thanks for any feedback,
Mike
@user01
Very nice chart.
Let me know if I can help with DMD info.
The specs are very different from the EzUHF, if you can read. 2W > 200mW, no USB analyzer, firmware update etc.
What we have is the ChainLink as cheapest, then Dragon Link, then Scherrer LRS, then ezUHF
TLS/DL/CL are similarly spec'd
ezUHF and RMILEC are both different
See https://spreadsheets.google.com/ccc?key=0AodCPSAvVLOGdGV1djBDUVp0R0... for more information
This can be bullshit, but I like when seller give out so much data.
It can give a false feeling of good engineering but it's better than hiding specs, which I faund nonsense..
Happy to see FHSS and DSS technologies in a longer waves other than 2.4GHz
How this system compares to the EzUHF? Both look similar spec'ed.
Well Crist Rigotti from RCG just got a range 30.4km out and (63.2km) round trip. Not saying it's legal, but it's possible.
1 hour and 40 minute flight.
With no fancy design UAV.
He used the UHF 433Mhz D link with stock antenna as RC gear.
Thread about this flight.
so it's not $265 module for a $53 TX, its a $265 module for a 500$ Tx if you select a JR 9XII
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