GUOHETEC PMR-171, HF/VHF/UHF ALL MODE SDR Transceiver 100kHz to 2GHz
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- čas přidán 25. 11. 2023
- PMR-171 is an ultra-portable full-range full-mode SDR carrier radio launched by us, with a receiving
frequency of 100kHz~2GHz and an amateur transmission band covering the 160m~70cm band. The ultrawide frequency range can realize the transmission and reception operation of all commonly used frequency bands. PMR-171 external battery compartment design, ideal for field use, replaceable battery compartment design, dual battery backup, plus ultra-low receiving current, for ultra-long battery life.
- Operating Manual(PDF): pmo41839d-pic1.ysjianzhan.cn/...
- Aliexpress purchase links:
www.aliexpress.us/item/325680...
m.banggood.com/sk/PMR-171-100...
#guohetec #pmr171 #sdr - Věda a technologie
Thank you Paul for putting this video very interesting.
Thanks for video Paul. 73 de R2DTX.
thanks Paul great review fantastic job thanks for your cooperations.and your time.
Good that this movie is online again.
But it was two hours longer...
yes it is edited version :)
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.
Great video, best review I have seen
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.
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.
200510 in v4 only gives you an error message. I had no idea that there is a link between this guohe thing and the mchf radio. At the time I had built more than one mchf with parts from the uk amateur.
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.
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?
Thank you, that's cool.
seems to be the Q900 trx + battery pack and tactical housing
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!
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
This radio is not cheap for what you are getting; without any kind of obtainable warranty. Roll of a dice, about $1300 USD.
It also has a pretty small screen; but maybe it's worth the gamble like I took with my Xiegu X6100, but I spent half the price for that radio, bigger screen and a lot more portable. 🙏
@@jamess1787 not sure where you are buying but it should be a lot less that $1300.
@@jamess1787 looks like around $650 plus tax
The GPS, DMR and compass are options, I have all the options with mine so nothing is greyed out
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
Radtel Dual Band Walkie Talkie Antenna 134-176/400-520MHz Tactical Antenna for RT-490 RT-4B RT-470 RT-830 RT-890 IP68 RT-68
a.aliexpress.com/_mMI48Ba
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
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.
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.
Zda sa ze nie. Taku funkciu som tam nenasiel
No je tam prostor k vylepšení, ale obávám se, že to zase zabijí jako třeba GSOC k G90, které je koncepčně úplně skvělý nápad, ale po SW stránce nedodělek, ke kterému už se od vydání bohužel výrobce nevrátil, aby chyby napravil a to na to celou dobu čekám :D Díky za info!! 73.
@@OM0ET
Tazko povedat. Vyrobca mi vravi ze firmver sa bude este vylepsovat.
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.
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
czcams.com/video/v54OOxLaPf8/video.html
You have mentioned the74 on your keypad when you was going through the bands. It will mean 4 meters possibly.
yes i know, but I was just curious why is 74 behind 430 :)
Combat ready!
does it do 10K TX on ssb? as well as rx?
Can you make a video on how to update firmware, please
is it tough screen?
It is Yaesu mic, i have had 2 yaesus and it is same
Its a knockoff not a Yaesu
@@philipwells2793 A copy of yaesu yes, should have mention better.
The connector is not the same size…
What's the story with 2Ghz?
Is this a fully functional radio or is another unfinished project?
How do you update the firmware
How about AIR?
i need to test ;)
Real interesting indeed! Thanks for this detailed review.
Cheers!
VU3TQT
Pronounce it as if it was an Egyptian pharaoh and you'll be fine.
Maybe they used their pyramids as deltaloop antenna
@@Ghostwritersinthesky I can't remember the last time I saw Egypt in the DX Cluster list!
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