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Buy cheap China crap Get cheap China crap Spend a little more and get some quality

I will stay away from this radio!

Sieht gut aus

Anything Guohetic seems to be junk, sorry this happened to you.

Hello Dietrich, guess in the meantime you have found a solution to your problem. Probably best thing had been to reload the firmware into the Q900 once more. After all the radio is about half the price of the new Icom qrp rig. And that one is rather a brick and not as elegant as the Q900.

While this radio outspecs the G90 on paper the G90 performs very well. Mines been going 3 years with zero problems. One last try for you might be reprogramming.

Bonjour super le son de Arnaud SWL

Thank for your video i was ready to buy one at Aliexpress, but warenty or refund is always difficult, so I decided not to buy one

I received this Q900 radio from Banggood in a completely inoperable condition. It cannot even be switched on. It gives no sign of life. Banggood has been holding the return/repair ticket open for almost 2 months now, but has not provided any solution.

too good to be true turned to bull shizen as always, maid in china by little maids not even a vfo poop poop poop ..jeff

Not sufficient cpu cooling, it cooked in just 6 hours, it will never reset now. Slow to load up is quick to heat up. Bye Bye $$$ sent to China. Buy Japanese electronics next time.

Power current : 13,8 V and you send 16 v ??? "I’m surprised it lasted as long as it did. 🤭🤭". RX: 5v to 32 v ; TX: 5v to 13v . Hey are you sure every things are ok ?

Wieder ein gelungenes schönes Video. Danke.

Schönes Dorf, und doch gibt es Leute die ziehen weg.

wonder what version you got OM as the later has VHF / UHF on antenna socket 2 (SMA) and not socket 1

There is another hole between the USB and USB-C port, is that a switch too? A firmware upgrade/re-installation should fix it.

Chinese aren't they? I'd be wary of getting one until they have a proven record of being reliable.

I really appreciate this video. I was considering this radio but have taken it of my mental list of possibilities based on this video and the helpful first-hand comments here from other owners.

Thanks for sharing…. I will avoid this radio…. I build my own rigs…. Which are often garbage…. But fun and cheap garbage 73 de VK2AOE…. Hope they refund or fix it for you.

Ist doch noch gut ausgegangen.

Wenn der Flug problemlos verlief, ist es für Dich ja normal.

So ein Haus, das wäre schon was.

The looks of that shipping box was a red flag…

China is really bad with HF radios. There are a few brands for VHF and UHF handhelds, like Beofeng and Retevis, that are decent for the price but stay away from the all band and HF radios unless they’re being sold by a dealer in your country that accepts returns with a full refund. Stick with Icom, Yaesu, Elecraft, etc.

Very sorry OM. Local suppliers stop carrying if support is too difficult. 73

It looks like Chinese manufacturers are taking your money not good for business now I'm not going to buy one I'm going to stick up or icom pay a little extra money and get a good radio ic705 these companies don't seem like they stand by their product they break down icom is a much better component ic 705 for a couple hundred hours more it's worth buying 👍

Moin Dietrich, so ist das bei den Chinesen. Selbst wenn das Gerät an und für sich gut ist, so mangelt es immer an Qualitätskontrolle. "Wie eine Schachtel Pralinen, man weiß nie was man bekommt". Ich kauf in China nur kleines Zubehör, niemals etwas was teurer als 50 EU ist. Wenn so was von keinem Händler in Deutschland verkauft wird, hat das schon seinen Grund. 128,

I purchased the Retevis version of this SDR transceiver. The first one I was sent was a version 1 unit without DMR. I had ordered a version 3 with DMR. In addition, the transceiver refused to be unlocked. Retevis replaced that with a version unit 3 but left out the DMR module. I could unlock it but it refused to transmit even after setup according to their instructions. Retevis sent me another version 3 with DMR. It did not work on DMR and it was unusable on SSB as it had distorted audio. Finally I returned it for a full refund.

It’s more Chinese CRAP and even if it worked it would need weekly software updates like most of their garbage.👎🏻💩

Oh no!!!! Its always a risk but sometimes you get something exceptional, unfortunately not in your case. I feel sorry for you...hope you get it repaired somehow soon?

More Chinese junk.

big mistake getting this ... I got burned with mine the first HS2 ... tried to warn as many people as I could, bad company, bad product horrible brand (brands) they don't fix any issues, it's money down the drain ...

Hi Dietrich. It’s very sad to see that this radio hasn’t improved with age. I have the Version One of this radio, marketed as the Ailunce HS2. The firmware in this radio is a fork of the UHSDR project originally produced for the McHF QRP SDR radio by M0NKA, in fact text strings within the firmware still have M0NKA tags. When I received mine I found that the RF power output was all over the place, but much more worrying the RF output was not clean and harmonics and spurious emissions were all over the place, in some cases the spuri were less than 15dB below the fundamental. The original McHF radio had a very comprehensive setup routine involving setting up the PA Bias and followed by calibration of each of the bands for the correct power output. Unfortunately it appears this was not performed on the Ailunce HS2 or the radios that followed it. The VHF/UHF feature of this radio is totally unusable. There is minimal bandpass filtering and the output of this radio on those bands is the dirtiest I’ve ever seen. Phase noise on transmit is also totally unsatisfactory. Sadly there is no manufacturer support for these radios (HS2/QR20/Q900). I’ve only used mine a few times on HF and even then I had to use an external Low Pass Filter to reduce the unwanted emissions above 30MHz. I do hope the seller from whom you purchased the radio treats you with respect and provides you a full refund. Regards Nidge (G0NIG)

Why don't you reply to your comments?

16V? I would have assumed 13.8V DC Max. The noise floor looks to be at the ceiling the whole time too.

Wait a minute, didn’t you say at the beginning of your video. That your power supply was giving that little QRP Rig 16 volts? Hmm…. I’m surprised it lasted as long as it did. 🤭🤭

Wäre mal ratsam einUpdate zu machen , das Teil läuft bei uns schon seit es raus gekommen ist ohne Probleme . Und ja man sollte bei denn Teil aufpassen was man drückt !

Moin DF6GU gibt es was neues? Ich habe auch einen Q900. Dieser empfängt sehr gut. Ich habe nur noch nicht die optimalen Einstellungen für UHF/VHF Sendebetrieb gefunden. 73 DO2FWS

Same case of DF6GU, just put Omnirig (because emulation 817 dont work win version) the Q900 goes to transmit, I DONT RECOMMEND THIS TRANSCEIVER, and discover that the standard versión not include V/UHF Regards EA4BKW

hi 73 , i have same problem with my q900 :( , no reception , no tramsmition on any hf band

Please turn off frequency hopping mode

Hello Dietrich, I didn't know about the hidden switch. The Q900 only tunes on the HF bands, not on 6m, 2m or 70cms. I don't have the GPS in mine but you need to get a proper GPS antenna for it to work. I have done a video on the settings I use on my CZcams channel. I've found it works well when you get it setup correctly. Ben de M7FRS

Thanks for the warning. The name alone is enough to make me shudder.

Danke für das Video. Jetzt wissen wir, dass ihr fleißig seid und nicht faul in der Sonne liegt. Weiterhin viel Spaß mit eurem Gärtchen.

Gut gemacht

Das kann nur eine Drohne.

Gut,wie immer.

Super!

Kann man essen