Quansheng UV K5(8) - 999 Channels Hardware mod - EPROM replacement

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Yuri Sh

Yuri Sh

Місяць тому

I documented 999 channels hardware mod using IJV firmware and his tutorial. It works!
As a beginner I made couple mistakes those took me a lot of time to figure out how to fix. Radio worked strange way, Chirp displayed errors for saved channels and firmware settings. After writing channels to the radio they were read with errors, all because my mistake.
I documented my project and that video helped me to find and fix my errors. Now it works well. I decided to share it in case somebody is going to perform that 999 channels support upgrade. Those parts are small and some kind of microscope would be helpful. I used just my phone to record and review my work.

КОМЕНТАРІ: 14
@chrisalfatango9208
@chrisalfatango9208 15 днів тому
Now all you need is the FULL HF MOD nice work 73s
@cagivasupercity
@cagivasupercity 8 днів тому
I would add also capacitor to have no problem with external microphone, when sql is open. I am using high temperture band to protect the resistors and using a smaller pipe for the air gun.
@gerfgrub6622
@gerfgrub6622 Місяць тому
I use to work with surface mount components professionally. I was pretty good at it. But now I shake so bad I wouldn't even want to try it. :( Hey, you did a great job for a beginner. 👍
@yurishbox
@yurishbox 28 днів тому
Thank you! These components are so small and when I use just my eyes it looks good, but after I see it on video I usually have to redo it :) Definitely I will need to inspect soldering work every time not hoping that everything is fine.
@ta5lvc104
@ta5lvc104 Місяць тому
Thank for video. Good jobs. TA5LVC
@kakeru123
@kakeru123 25 днів тому
you can stack two chips together to get 512kb in total
@ostar-en7ec
@ostar-en7ec 18 днів тому
Nice video! Overall, how would you rate the radio itself? It arrived recently and didn't use it that much
@yurishbox
@yurishbox 18 днів тому
I like the radio. It sits in my hand well (I wanted to get Yaesu FT-60, but that is too wide for my hand). However I didn't use it with stock firmware. Big advantage is firmware mods and even hardware mods. I installed IJV 3.x right after I got the radio. IJV user interface is convenient. Easy to change modes. I use Chirp to program repeaters. In my area we have many repeaters on top of mountains, so using this radio and homemade vertical dipole I can easily reach repeaters. However I mostly listen. I got longer antenna for the radio and it works well. Battery lasts several days on scanning. I don't have much radios to compare it to, but currently it's the radio I use for VHF and happy with. Receiver is not as good as Icom IC-7100 I compared it to, but that Icom is from very different category and costs 50 times more. I had baofeng UV-5 and UV-82, and I didn't like them and almost didn't use them. Compared to baofeng it has cleaner signal (better harmonics rejection) more convenient display as well. It's not perfect radio, not waterproof, receiver can be overloaded by strong signals (like most of other handheld radios), but it's very capable radio for the price. I do have 2m bandpass filter and sometimes use it. It reduces receiving noise level when radio connected to external antenna. As I'm not going to spend hundreds of dollars on handheld radio currently UV-k5(8) is the radio of my choice for price range under $100 and for experiments.
@ostar-en7ec
@ostar-en7ec 18 днів тому
@@yurishbox Where did you find the drivers for chirp with the ijv v3? when i try, it says firmware not supported. I will prob try egzumer because it has a spectrum feature.
@yurishbox
@yurishbox 18 днів тому
@@ostar-en7ec If you download IJV firmware from their official site there is a .py file in the archive with IJV firmware. For 3.13 it's uvk5_IJV_vX3_36.py When you run Chirp go to Help/Developer Mode. Than restart chirp and go to File/Load Module and select that py file. After that when you open Radio/Download from radio select that IJV in Model field. Official IJV site is www.universirius.com/en_gb/preppers/quansheng-uv-k5-manuale-del-firmware-ijv_v3/
@wcatfn7928
@wcatfn7928 8 днів тому
Ahhh!!!! * Boom * (parts fly out of window)... "Eff it!!" ...Orders new Quansheng from Aliexpress...
@yurishbox
@yurishbox 8 днів тому
😆
@realmccoy7503
@realmccoy7503 Місяць тому
Couldnt compete with a todays scanners in speed of scanning 1000 channels. set a clockwatch togheter with a scanner youl see. unless it doesnt matters but with only 200 it already goes slow anyway nice turtorial.
@yurishbox
@yurishbox Місяць тому
Yes, I wanted 999 channels to spread them on 15 scan lists and switch between scan lists when travel. Like a separate list for repeaters per state I visit.
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