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HF FULL BAND Mod. v2.1 w/ PREAMP – INSTALL – Quansheng
HF FULL BAND Mod. v2.1 w/ PREAMP – INSTALL – Quansheng UV-K5 (Si4732 chip)
#FULL #BAND #Mod #v2.1 #PREAMP #INSTALL #Quansheng
“Codernov Electronics Repair”
Dual antenna and single antenna install for HF FULL BAND mod ver 2.1. No cutting your board, we look at X-RAYs and prove definitely that cutting your board is a horrible idea, you can short. For single antenna we test if choke should be used or not. For dual antenna we test where is best to…
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😆Table of contents👀:
0:00 – Teaser
1:40 – Intro
3:38 – Tools & Consumables
7:45 – Disassemble UV-K5
8:41 – How to flick and cut
10:04 – Remove components & clean
18:34 – Install HF FULL BAND mod. w/ preamp version 2.1
32:10 – Decide 1 antenna or 2 antenna
32:55 – TEST where to connect 2nd antenna
37:00 – 1 antenna setup
39:56 – TEST choke for 1 antenna or no choke
42:31 – Recap work done so far 1 antenna
43:17 – 1 antenna install choke, YES you need it
45:37 – 1 antenna DONE!!
47:33 – 2 antenna, remove capacitor
49:31 – IPEX or direct solder
50:35 – Isolate with UV solder mask
54:36 – Install IPEX connector
1:02:06 – Flashlight LED
1:12:38 – If you cut your board, you will short it!
1:14:44 – Relocate flashlight LED
1:17:30 – UV is cheap and EZ
1:18:30 – TEST relocated LED
1:18:40 – Optional LED relocation job done
1:20:31 – Isolate contacts around IPEX connector
1:22:18 – 1 antenna hi-freq low ESR choke
1:23:18 – How long to relocate flashlight LED?
1:23:48 – Cut antenna hole for SMA
1:35:39 – Make SMA flush with body
1:48:43 – Break SMA legs off
1:49:01 – Cut SMA center pin
1:53:06 – Si4732 + Spectrum Band + Spectrum Analyzer?
1:54:40 – Cut pigtail to proper length
1:55:56 – Clean isolation off pigtail
2:01:27 – Solder pigtail to SMA
2:08:40 – Isolate ISA w/ UV mask
2:12:58 – Install SMA
2:14:06 – Reassemble the radio, DONE!!
2:22:01 – Disassemble 2 antenna with IPEX (show off)
2:23:10 – Final SMA possitioning & notes
2:26:05 – Stock antenna & capped SMA
2:26:36 – Stock antenna & BNC on 2nd antenna
2:26:44 – Radio with two BNCs
2:26:51 – Radio with antenna and BNC
2:27:00 – Two antennas at the same time
2:27:19 – Si4732 + Supectrum Analyzer?
2:29:46 – Relocated LED show off
2:30:23 – Two IPEX connectors & BFU550AR low noise
2:31:44 – DONE!! See you in the next one guys!
Another Legendary video from the Quansheng Guru of Hardware Modding.
I really enjoyed every second of this video till the end.
I have the board on my hands and decided to go for the dual antenna setup.
Can you summerize the necessary steps of the board installation ?
For example, no choke, which jumpers to do, where exactly to soldier the extra antena after the amplifier etc… ?
Thanks, and I'm looking forward for your next video with your analytic tests..
Tried the patch, installed cec 0.5HF, radio turns on but won't go below 18MHz. Pressing Band Plan shortcut hangs radio. Have to turn off and on to get back. Is there a way to reset the eeprom?
Slava Rossii
Work good with preamp in 2.1. I cut pcb before capacitor and install antenna after factory preamp (dont use it). https://www.youtube.com/shorts/OBG5Ljzy2IA
Thank you for you work and tests!
Great video, much patience!!
I really enjoyed your video modding these radio. Awesome Guy with a Russian slang …Cool Bro i like it. i will do my mods next.
Can you help? I have everything installed well but i only get audio if i jumper a wire between ROUT of the Si4732 and the 8pin area where you solder to the board. if i jumper after the capacitor (the one right after ROUT) to the 8pin connector, I also dont get audio. so its not an issue with the traces, its something with the amp area
Очень понравилось, спасибо, посмотрел полностью видео, подскажите, а будет демонстрация работы КВ диапазонов на улице ?
Great Job can you provide link to the correct si4732 v2.1 board ?
73’s. Very Good job. I did it for single antenna. Install cec 0.41 firmware and when I press 0 button the radio blocked and impossible to to on hf mod. ?
Thanks Alex l love your videos, you go into every detail, Ive done the eeprom chip now ill have a go at this, very enjoyably, I subscribed this time 😊👍
Hi Alex, we are both legends! You because you made such a good and comprehensive video and me because I watched it all in one go!! 😅
I have had this board for weeks but wanted to wait for you to make a video before I tried doing it myself and I am so glad I waited for your video. Thank-you!
great vid
Use a small solder sucker to remove those components from the board. With the solder removed the components will literally just fall away as there's nothing to hold them on. It's so much easier and much quicker to use a sucker, you'll soon get the hang of it. Get a small one, the bigger suckers are harder to handle.
What are the benefits of a dual antenna setup other than ease of use, (not having to change out antennas?)
Awesome as always. Thank you!
I recently got 2 of these boards. One of them was missing the component you see at the very beginning middle top! The YG404Q! Just unbelievable! Got it on eBay.
i have the same telescopic antenna you bought at the end of the video. I recommend checking the SWR if you want to use it for TXing.
Great video again!
Thanks from Brazil!