HF FULL BAND ver 2.5 w/ HF amp & audio PREAMP - Quansheng UV-K5 Modification (Si4732) - Overview

We overview the new version of the HF FULL BAND Si4732 modification board for the Quansheng UV-K5, this new board has HF amplifier for the AM and SSB, plus the audio PREAMP. Separate antenna for AM/SSB & FM. But if you already have version 2.1 should you run and buy this brand new version 2.5?
#quansheng #quanshenguvk5 #uvk5 #uvk6 #fullband #si4732 #hamradio #modification

[@bratislavist]

Thank you very much for your modifications videos! I am old time electronic hobbyist but now in my sixties i am learning so much about new soldering technology from you! Lot to learn about SMD. Spasibo!

[@vvvippperrr]

Another great video man !

[@mykdelta]

great video. love your style as well as the content itself

[@pablonorthwork]

i liked vídeos posted your page. great job man

[@abdullahguler7950]

Thank you for this version's review

[@pablonorthwork]

great job man

[@codernov]

Version 3 in a month or so? ibb.co/yYpJZZt ibb.co/s57C3ns ibb.co/QM8xdDH ibb.co/5LPCc9n

[@n1kkri]

I'm learning towards the single antenna mod. I have not found a youtube showing any difference between the a dedicated antenna for HF. The choke that is installed under the display to the far side along the side of the radio, is that there to allow HF on the same antenna port as the VHF/UHF? Of all the si4732 mods for single antenna, is there one any easier than the other for installation?

[@codernov]

Check out DS5WIS's channel for such tests for now. Next I'll be doing ver 2 without preamp with single antenna, specifically for testing. Then testing, and then after testing dual antenna. But you'll have to wait for it, I'm kinda over the top of my head right now, things just coming up.

[@mykdelta]

Holtsen is from Germany I think. In any case not from Holland, amigo.

[@stanislavlukin1284]

И эту заказал ! хотя 2.0 еще не пришла :)

[@codernov]

Я не буду эту заказывать. Мне фильтры не понравились. Подожду месяц второй, может ещё что-то появится.

[@codernov]

Погляди тест kzbin.infoaH7C9a3aVYY

[@n1kkri]

Would you say after this mod, the radio performance on HF is as good as some of the portables under $100

[@codernov]

Here is test kzbin.infoaH7C9a3aVYY

[@n1kkri]

@@codernov If I watched it correctly, with amplifier was worst than no amplifier on 7.496MHz station ? If that is the case, why would the 2 antenna system be better for HF?

[@codernov]

@@n1kkri Perhaps because inside city there is a lot of crap on the air like FM broadcast stations, etc, which give noise. So inside city best without HF amp. More testing needs to be done outside city, where there is no radio noise. My city is looooongest in the world, Sochi yo, so for me it's testing done in mountains. Why 2 antenna or discrete antenna is better? Because you don't get anything else on input, just antenna + filter on Si4732 board.

[@herrmannek]

I the radio fully functional after the mod?

[@codernov]

Fully functional is a stretch. To listen to FM radio you need a special firmware, either CEC_0.51 or Reborn_WFM_SI_SSB. Other than that, everything is functional.

[@ShawnWrona]

Will this work for the k6?

[@codernov]

k5, 6, 99, whatever, they all the same only different plastics.

[@JAMES-dv1yg]

How About A Link For The V.2.5 Part? Thanks...

[@codernov]

aliexpress.com/item/1005007201699291.html aliexpress.com/item/1005007208202205.html aliexpress.com/item/1005007207854725.html So I guess you not going to wait for version 3? Be sure to get EEPROM with it, so you can run @fagci Reborn WFM SI SSB firmware. Part is M24M02-DRMN6TP

[@halohms]

@@codernov Has anyone received that version yet? I ordered one a week ago and it has yet to ship . Ordered a radio at the same time and just got it. I placed order from another vendor and it says shipping in 9 days! WTF?

[@codernov]

@@halohms I haven't even ordered it. Just publishing a vid right now. Watch it. It's about HF amp.

[@halohms]

@@codernov I did watch it and that's why I ordered it. The original V1 type board without the audio amp came here in 10 days from China. I ordered the v2.5 board over a week ago and it is still hasn't shipped. So are they actually in the field yet?

[@codernov]

@@halohms Could be could be. My 2.1 war coming almost a month. Could be they haven't received from factory yet.

[@teslar1]

Why don’t you spec your own mod kit. Source it in china and sell it