GUOHETEC PMR-171, HF/VHF/UHF ALL MODE SDR Transceiver 100kHz to 2GHz 

Thank you Paul for putting this video very interesting.

thanks Paul great review fantastic job thanks for your cooperations.and your time.

Great video, best review I have seen

Thanks for video Paul. 73 de R2DTX.

This radio is for all those who already have everything and do not bother to spend money on a radio that is promising a lot but keeps a lot less.

Thank you, that's cool.

Thanks for the good demo, I’ve had mine for a month now and I’ve found it to be a good performer, you are correct about the ATU, you do need to adjust the setting to 1:1. I’d like to find a suitable lightweight headset, the phone socket on the front panel does AF out and In also PTT. I’ve had no luck in finding a suitable mic connector/adaptor, the one fitted seems to be smaller than standard, if anyone has any suggestions that would be useful. We have set up a Facebook group which is starting to get some useful discussions.

Good that this movie is online again. But it was two hours longer...

Hi Paul. It's resolved the low power menu (PA option) distortion in the modulation? This happens on q900 and some user from this version in our Whatsapp group. You tried if with 13.8v have distortion at 40m or other bands with hi power? For me, the size of q900 was more interesting for sota and expedition. I think it's the same model in other box.

I think I will wait until version 2. Maybe more stable, the step button, get rid of TNC connector, USB reposition, maybe duplicate antenna inputs in the back (covered by battery when not in use) so it's neater if using as a base station or mobile rather than manportable or POTA. Thank you for the review!

seems to be the Q900 trx + battery pack and tactical housing

Auto-L and Auto-R in CW probably changes from left hand and right hand paddle operation. Looks to have a stingy s-meter. Also needs markers on the spectrum scope. Did you buy this rig or did you get one for review?

You might be able to change the colours of the display by accessing the factory setup menu. On the Q900 this is done by going into settings, press and hold the PA button and you will be asked to enter a password, which is 200510. Here you will find the same setup as you get with the MCHF/RS918 HF SDR transceiver, which isn’t too surprising as it’s using a forked version of the original M0NKS OpenSource UHSDR project firmware. Talking of the factory setup menu, it has been my experience with the Q900 radios (V1 to V4) that the values for the options were input with the use of a random number generator. The biggest problem I found was the settings for the PA Configuration. The output of the radio is full of harmonics and spurs, especially on VHF and UHF, as no thought was put into setting up the PA Bias, PA PreBias, and the individual band power settings. If you’re familiar with setting up the MCHF transceiver the method for the Q900/171 is similar. Just like the multitude of MCHF clones out there this radio isn’t really fit for purpose out of the box, and if you don’t want to receive a station close down request from your relevant radio authority I would recommend spending some time ensuring that your transmitted signal is as clean as possible.

Hi Paul. I am very interested in buying this PMR-171 mainly because the all in one bands HF, VHF and UHF. Is there any other test you have done with it. I could only find 2, this one and you operating it under snow. Maybe any advice or seller? Thanks.

Hello OM0ET, did you like the xiegu 6100 or more of the GUOHETEC PMR-171

Hi Paul so will it do 2m ssb the mic is a rj13 73. Bro

The GPS, DMR and compass are options, I have all the options with mine so nothing is greyed out

Hello Paul, nice little radio, if didn't have so many now, this one would be interesting to own....hope to see you later, Thanks

Hi Tim does the APRS Work, Thanks Dave

Combat ready!

Hi Paul. I enjoyed the video, it looks a promising radio. Can you please let me know tge make and type number of the large VHF/UHF antenna youre using and where you purchased it from? Better still a web link would be good. - Ian

does it do 10K TX on ssb? as well as rx?

Thats how i would say it.. Bit of a mouthfull.. Well stupid name.. Thanks for the video

I hope you use it for good QSOs

Ahoj Pavle, umí tato zběsilost také skenovat ? Nikde se mi ten údaj nedaří najít, když už to poslouchá tak vysoko, přelaďovat tím knobkem asi nebude nic moc a cena už také není příliš příznivá.

It's a nice radio but need to press buttons for VOL and RF controls is a no-no for me. Should be rotary controls (like IC705) would be much easier.

What's the story with 2Ghz? Is this a fully functional radio or is another unfinished project?

Can you make a video on how to update firmware, please

is it tough screen?

You have mentioned the74 on your keypad when you was going through the bands. It will mean 4 meters possibly.

How do you update the firmware

It is Yaesu mic, i have had 2 yaesus and it is same

20 Watts SSB? I’m gone.

Hi sam have you got anymore passwords for v4 pmr171, Thanks Dave 2E0DMB

How about AIR?

Real interesting indeed! Thanks for this detailed review. Cheers! VU3TQT

Pronounce it as if it was an Egyptian pharaoh and you'll be fine.

Who supports this radio if warranty work is needed ? Is a service manual available ? I avoid costly Chinese radios like the plague because the manufacturer has no representation outside of China. B