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Home Quansheng UV-K5 Full Band HD Modification

Moleculo

Ham Radio Nerd
Apr 14, 2002
9,278
1,902
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The Quansheng UV-K5 has rapidly developed a reputation at the most "hackable" radio on the market today. There are many firmware variants available produced by the ham community, and more seem to come every week. Now, a daughterboard is available that opens up the radio for full HF/MW/SW/LW reception, which also includes AM/FM/SSB modes, as well as broadcast HD FM. One of my local hams purchased the kit and did a photoshoot of the install, which he shared with me for publication.

Here's a photo of the entire kit, available on ebay for about $10. The base of the radio in the picture gives you an idea of the size of the components:

full


Here's a link to the item on ebay:


This is another picture for reference on how small the daughterboard is:

full


Installing requires disassembly of the radio and removal of the main board, which is pretty simple. This is the main board before modification:

full


And here is the main board after the daughterboard has been installed. Note the added resistor toward the bottom right of the image. The new board is just above the keypad, labeled UVK5 S14732".

full


After reassembly, you need to install new firmware that will take advantage of the board. The download is here: http://www.hamskey.com/2024/03/introduction-to-uv-k5-hf-fullband.html. Here is a pic of the radio receiving on 11M, channel 38 LSB:

full


And finally, a video clip of the radio receiving broadcast FM:


One thing to know is that there is some tiny SMD work involved with installing the kit, but it shouldn't be too difficult with the correct soldering tip. If you don't already own the Quansheng UV-5r, they're about $35 from ebay; less if you want to order direct from China:

https://www.ebay.com/itm/1345355609...pid=5336136228&customid=&toolid=10001&mkevt=1

Or if preferred, the radio can be purchased on Amazon:
https://amzn.to/4ap6FvA

Enjoy!
 

Additional info in this thread.


73
Jeff
 
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Reactions: USXDriver and NZ8N
The Quansheng UV-K5 has rapidly developed a reputation at the most "hackable" radio on the market today. There are many firmware variants available produced by the ham community, and more seem to come every week. Now, a daughterboard is available that opens up the radio for full HF/MW/SW/LW reception, which also includes AM/FM/SSB modes, as well as broadcast HD FM. One of my local hams purchased the kit and did a photoshoot of the install, which he shared with me for publication.

Here's a photo of the entire kit, available on ebay for about $10. The base of the radio in the picture gives you an idea of the size of the components:

full


Here's a link to the item on ebay:


This is another picture for reference on how small the daughterboard is:

full


Installing requires disassembly of the radio and removal of the main board, which is pretty simple. This is the main board before modification:

full


And here is the main board after the daughterboard has been installed. Note the added resistor toward the bottom right of the image. The new board is just above the keypad, labeled UVK5 S14732".

full


After reassembly, you need to install new firmware that will take advantage of the board. The download is here: http://www.hamskey.com/2024/03/introduction-to-uv-k5-hf-fullband.html. Here is a pic of the radio receiving on 11M, channel 38 LSB:

full


And finally, a video clip of the radio receiving broadcast FM:


One thing to know is that there is some tiny SMD work involved with installing the kit, but it shouldn't be too difficult with the correct soldering tip. If you don't already own the Quansheng UV-5r, they're about $35 from ebay; less if you want to order direct from China:

https://www.ebay.com/itm/1345355609...pid=5336136228&customid=&toolid=10001&mkevt=1

Or if preferred, the radio can be purchased on Amazon:
https://amzn.to/4ap6FvA

Enjoy!
The one thing that is interesting to me is the Hf ssb. What I’m wondering is if it’s even in frequency. I mean, there’s no clarifier at all.
 
The Quansheng UV-K5 has rapidly developed a reputation at the most "hackable" radio on the market today. There are many firmware variants available produced by the ham community, and more seem to come every week. Now, a daughterboard is available that opens up the radio for full HF/MW/SW/LW reception, which also includes AM/FM/SSB modes, as well as broadcast HD FM. One of my local hams purchased the kit and did a photoshoot of the install, which he shared with me for publication.

Here's a photo of the entire kit, available on ebay for about $10. The base of the radio in the picture gives you an idea of the size of the components:

full


Here's a link to the item on ebay:


This is another picture for reference on how small the daughterboard is:

full


Installing requires disassembly of the radio and removal of the main board, which is pretty simple. This is the main board before modification:

full


And here is the main board after the daughterboard has been installed. Note the added resistor toward the bottom right of the image. The new board is just above the keypad, labeled UVK5 S14732".

full


After reassembly, you need to install new firmware that will take advantage of the board. The download is here: http://www.hamskey.com/2024/03/introduction-to-uv-k5-hf-fullband.html. Here is a pic of the radio receiving on 11M, channel 38 LSB:

full


And finally, a video clip of the radio receiving broadcast FM:


One thing to know is that there is some tiny SMD work involved with installing the kit, but it shouldn't be too difficult with the correct soldering tip. If you don't already own the Quansheng UV-5r, they're about $35 from ebay; less if you want to order direct from China:

https://www.ebay.com/itm/1345355609...pid=5336136228&customid=&toolid=10001&mkevt=1

Or if preferred, the radio can be purchased on Amazon:
https://amzn.to/4ap6FvA

Enjoy!
My radio already has HF right out of the box
 
Additional info in this thread.


73
Jeff
Mine seems to have HF right out of the box
 


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    Coax question. I just put up a new Sirio monsoon base antenna with 100’ of rg8u coax testing with myMFJ antenna analyzer shows 1.4 swr at 26.965mhz and a 1.1 at 27.405 mhz . When I checked the ohms it’s steady a 30 ohms across the entire bandwidth.
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    Is 30 ohms worth worrying about in a 100’ run of rg8u ?


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