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[Sticky] FrSky D4R-II 4 Channel 2.4ghz Receiver  

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frsky D4R 05 0  540x400


Dimension: 40x22.5x6mm

Weight: 5.8g / 5g (naked)

Operating Voltage Range: 3.5V-10.0V

Operating Current: 60mA

Operating Range: Full Range (>1.5km)

Resolution: 3072 (>11bit)


1)  Firmware upgradeable;

2)  One external analog telemetry port and one digital data-stream port (connect to FrSky Sensor Hub FSH-01);

3)  RSSI (PWM) and CPPM output - If CH3 and CH4 are connected by a jumper CH1 will output RSSI (PWM) and CH2 will output CPPM for CH1~CH8;

4)  Lighter weight and physically smaller than D8R-IIplus & D6FR;

5)  Alarm warning on low voltage poor reception etc.

All files relating to the D4R-II 4 Channel 2.4ghz Receiver including manuals and firmware updates can be found here: 


This topic was modified 7 months ago 2 times by Cliff
Posted : 11/04/2019 12:04 pm
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B. J.
Active Member


As if not being able to get any more DHT modules was extremely bad news on it's own, the corresponding receiver has been taken out as well now.

This is Really Bad!

When will they at FrSky realize that serving your customers from day one is just as important as coming up with new stuff?

As there is no FrSky replacement for this DHT/D4R-II combo...

This post was modified 2 months ago 2 times by B. J.
Posted : 11/09/2019 7:56 am
B. J.
Active Member

Can maybe the administrator explain, why FrSky China doesn't repond to questions from their customers?

Whereas in the beginning they were communicative.

Posted : 02/10/2019 8:03 am
Rich bago

its down to us dealers to respond now

Posted : 11/10/2019 9:28 am
Rich bago

demand has dropped for the DHT and D4R, when this happens FrSky then cease the production. Frsky stopped manufacture of the D series a fair while ago and now stock have depleted 

This post was modified 3 weeks ago by Rich bago
This post was modified 3 weeks ago by Cliff
Posted : 11/10/2019 9:30 am