Review & Range Test: RadioMaster R88 SBUS - PWM 8ch. Receiver 

You should be able to do this by selecting 1-8 then 9-16 giving them the same receiver number but I have not tested this.

Hi, D16 and no the range will not be affected by the protocol used. If 300 metres on the ground that is ok. If you have fine frequency tuned and installed the antennas correctly that is the best you will get. If you really want long range try Express LRS.

Hi Terry, I tested the RadioMaster receivers and flown them in my fixed wings with no failsafes but credit where it is due FrSky receivers are good. The RadioMaster R88 PWM/SBUS receiver did well in my tests and I used it in my Canary plane with no telemetry loses or failsafe. Bonus is its an 8 channel and can be used later with a flight stabilisation system because of the SBUS capability. If you consider purchasing a RadioMaster receiver from RadioMaster directly please consider clicking on my affiliate link it does help me with my channel. radiomasterrc.myshopify.com?sca_ref=1531318.eCAoyeniWT I have flown my wing with a RadioMaster R84 with no problems but it is only has 4 channels.

Hi Francesco, you can use Frsky D8 / D16 and Futaba SFHSS protocols.

No Jan you cannot do this with the RadioMaster R88 but you can with the RadioMaster R168.

@@the-happy-RC-flyer, I see, the R88 lacks the extra row of pins the R168 and MotiveRC R8SB both have.

@@janspoelstra8309 yup, that's why I wanted to test the MotiveRC R8SB because of the flight battery telemetry option. The R168 works well too I did show the set up in my review video.

Hi. Here is an awesome update about R88 receiver. finally after testing the blank (4th pin) on the side near the SBUS port i found out that its the external voltage measurement pin which measures and transmits voltage value to the transmitter with "A2" label. I tested it with my R88 V2 receiver in D16 mode. not sure if it works with R88 V1 or D8 mode. Initially the ratio needed to be calibrated for accurate voltage value.

As far as I am aware the R88 does not have Smart port.

@@the-happy-RC-flyer Okay when detecting sensors i noticed that there is a A2 sensor which states 0.0v , can this receiver detect ext voltage?

@@the-happy-RC-flyer Hi. Here is an awesome update about R88 receiver. finally after testing the blank (4th pin) on the side near the SBUS port i found out that its the external voltage measurement pin which outputs voltage unit with "A2" label. I tested it with my R88 V2 receiver in D16 mode. not sure if it works with R88 V1. Initially the ratio needed to be calibrated for accurate voltage value. Thanks.

Yes it the transmitter uses the correct protocol.

Rafael, you need to hold down the bind button on the R88 then apply power. The LED will flash red. In your radio select the correct protocol, see the receiver manual, select bind. Power down the receiver and power back up it should be bound. Remember to Fine Frequency Tune the receiver, I have a video of how to do this.

@@the-happy-RC-flyer thank ypu so much for this info.

I am sorry you lost your plane. Out of interest did you get a telemetry lost warning? TBS Crossfire is a tried and tested system.

@@the-happy-RC-flyer yes. Immediately after the plane took off and climbed out, i started banking left to start the loop. Thats when i got a startling alert saying RSSI LOW. Immediately i decided to bring the plane back down. But even as it was crossing over me it alerted again saying RSSI Critical. Which i found odd because the plane was literally just over the outside of the runway. As i was preparing to land and attempted to bank left. Thats when the signal broke and would no longer accept input. Alert called out TELEMETRY LOST. And that was it. Couldnt do anything else but watch it cruise away. I have other planes using Spectrum RX. And i had just flown 2 other planes before this one. Should i just stick to DSM2 and forgrt the R88? Tomorrow im going to put another R88 in an old trainer plane and see what happens.

@@afbenaza it’s not good when you lose confidence in a product. Did you do a range test before flying? I would suggest looking at the antenna connectors and make sure the pins are not bent. There was either outside interference, bent antenna connectors, antenna installation to close to other electrical wiring or faulty receiver. I would suggest range checking the R88 which went to failsafe. Make sure you are not on low power mode.

It is a 5 pin connector which you local model shop my have but if not check Banggood.

Yes you could but the R88 is a fairly large receiver.

@@the-happy-RC-flyer Thanks a lot

Christian I have not had problems with the failsafe set up. Are you holding the sticks on your radio to the failsafe positions you want? If someone can help you push the bind button on the receiver whilst you hold the sticks in position. Also be very careful when testing the failsafe take off the propeller.

@@the-happy-RC-flyer thanks so much, after some trials I found out that binding with D16 mode and 8 channels while setting the fail safe to 'receiver' solves the issue.

Hi Aadil, any of the available RadioMaster receivers will be fine.

@@the-happy-RC-flyer Thanks, Bill

Yes it is.

@@the-happy-RC-flyer Thanks for the support

@@anshusky5184 you are very welcome.

Yes it will.

Have you fine frequency tuned the receiver? If not that could cause range problems. This video should help you with the process. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-RDICdD4QpUk.html

@@the-happy-RC-flyer Yes I did that. Had previously installed an r88 that I installed on another aircraft. Then bought this new r88 and installed it but with the new one I no longer have reception over 70m. Also have the same distance when I bind with spectrum. I'm considering whether it could be due to the tx16s

@@rcmunich7779 have you tested the first R88 again to see if the range is ok? The other thing is the low power mode been activated but you should get a warning when you turn the radio on. Or the antenna in the radio has become disconnected but would be unlikely.

@@the-happy-RC-flyer low power mode I use only for range test and it's off. Next time I check the first r88 In this plane but in the other plane it's OK. Maybe the new r88 got a manufacturing defect

@@rcmunich7779 it does sound like it.

Difficult to say, what is the RSSI value? I ask this in case your warnings are not set up correctly. Have you checked your antennas are not near any electrical sources of interference and connected correctly. If you ground checked did you turn off Low power mode after range checking.

@@the-happy-RC-flyer standard OpenTx values for rssi alarms.... i keep flying the model and haven't neither lost signal or triggered fail safe so far... it's a 30cc Gas airplane.. Rx is not close to any possible source of interference, one antenna is placed horizontally on the right side of the model, pointing backwards and the other antenna is placed on the left side of the model pointing upwards... i get rrsi low and criticial every flight.. and whenever i get the alarms i imediatelly turn back and bring the model closer to me.... i have a r86 in another model and a get a rssi low alarm when i am much further than with the r88 model....

@@Diogo-dt1uf Have you fine frequency tuned the receiver? If not that will cause range problems. This video should help you with the process. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-RDICdD4QpUk.html

@@the-happy-RC-flyer yes i have!

@@Diogo-dt1uf I suggest removing the R88 from your model and complete a field test if all is ok then it it something to do with the model, you said it is a gas engine so the electronics for the motor maybe causing interference. If you still experience problems I would suggest opening a support ticket with RadioMaster.

FM, those where the days! We are showing our ages 😃 If I remember correctly we had to keep the TX antenna not extended for range testing?

@@the-happy-RC-flyer That's what I remember. Do the check on ground with short antenna, then extend for flight and that should give you enough margin in the air. A friend crashed a plane because he forgot to extend the antenna after the ground check :(

@@YensR ouch!

@@the-happy-RC-flyer definitely was a wake-up call for everybody!

You should get 1km in the air line of sight but listen to the RSSI warnings and return towards you immediately. 1km is a long way for a relatively small RC plane.

@@the-happy-RC-flyer What is the best r8 jumper or the radiomaster r88?

I have not tested the R8 Jumper so cannot advise you Alan.