Thank you for taking the time to show the work in detail. You are very good at soldering. Looks like these mods are getting better and slightly easier each time. One day i might be able to try one myself.
Just a tip when removing that ic. Do not bend it up on it's opposite legs for fear of damaging traces on the board. Simply bend a piece of solid copper wire in a u shape so that it fits all legs at the same time. Flood the wire around the ic and it will come away in one piece with no bending required!
Thanks Paul for your work in this great little Radio. I did the Mod too, and i‘m very happy :-) For all the guys that have the same problem with the TX/RX-LED: It is absolutely certain that the flashlight was removed by cutting the board, and a trace was interrupted, which is contacted through the pcb. But it's not a problem, I followed the trace and re-laid a wire to restore the function of the LEDs. The Cu-Wire is soldered from the top of the LEDs to the bottom right pin of the volume knob. (View of the front of the lying PCB) That's all! 73 de Henning
Thank you for your comment and this tip. Also can be used a different BNC socket with slimmer profile and then is no need to cut the board. I did it in my second radio with great results.
Hello. Use 50 ohm RF1.13 shielded cable (outer diameter 1.13 mm) or 50 ohm RG178 Teflon (PTFE) cable outer diameter 1.80 mm which will allow you to weld the ground braid without melting the central core. Thanks for the video.
Hey, so the conversation you caught on 20m was from Greece, and I’m 99% sure that same person is on a 70cm(!) repeater near me (these guys always brag about their HF rigs, I can see why…) I use pretty much the same radio, which is quite the testament to the versatility of these Quanshengs when modified appropriately! Cheers!
Thank you, my friend! I watched maybe all the videos about this modification, and this video is the best. I’ve done everything as you show, it took half an hour, and it works great! Thank you very much!
To remove and make the "LED hump" flush, I used a soldering iron set to 340F with an old flattish blade tip and very very carefully melted it down little by little. It gave a nice smooth result. I imagine a woodworking iron would work too. The smoke from this type of plastic was not black noxious smoke. It was barely visible and had an almost sweet smell. I was able to melt it the plastic indoors without stinking up the place, but use your judgment. :) Melting certain types of plastic with a soldering iron also helps with shaping square or unusual holes. It's great for mounting square switches because you have more control over the shape than with a knife.
wow! very good soldering skills! thank you for a very detailed video, looking at how much work is being done i would love to buy the radio with a chip modification already in place!
Thanks a lot Paul. Amazing Mod!, for mine, I will put SMA as its small profile, Will also move LED somewhere else using cables. and surely will use wifi shield cable from old laptop. With Short wave ground matters!.
Greetings Paul from Venezuela, that modification is much better and easy to realize than the first one. Thanks for you dedication to explained us. 73`s my friend de YV2ESB.
Just a tip when removing that ic. Do not bend it up on it's opposite legs for fear of damaging traces on the board. Simply bend a piece of solid copper wire in a u shape so that it fits all legs at the same time. Flood the wire around the ic and it will come away in one piece with no bending required!
Dangerous unsoldering method, better use hot air or 2 soldering irons or melt from both side of the ic. And this is excellent guide video! Thanks a lot)
Good evening Paul. Interesting video, but I don't understand everything. Secondary antenna without mass because only the central core is connected? Is the broadcast in uhf/vhf still possible or has this station become only a receiver? Thanks
A few things to consider. The second jumper wire goes across a cap. Isn’t there a potential issue of a short? I would use insulated wire. Second thing: I can’t tell if those are transistors or diodes. I do know they melt quite well. For the viewer, I am talking about the little black devices with three contacts. Be careful and mind your soldering iron. Great video and cheers.
Hi Paul, could you please tell me what is the difference between the IOTC SI4732 V2.0 module and the IOTC SI4732 V2.1? I've been looking for it for two days but I can't find it anywhere. Many thanks in advance. Vy 73, ha5cvz, op Miklos.
@@jaycheeks7393 AliExpress might be who your referring too. I have seen them for $76 delivered to the U.S. I have only seen the single antenna on AliExpress and the description talks about an antenna mod of some sort sounding like it improves the single antenna performance?
If you are new to this radio, first thing to do out of the box is to go into the menu and find the RESET function, choose ALL. Proceed with the reset, and for safety sake turn off the radio and turn it back on. Your radio will now have 10-1300MHz tx and rx frequency range. The only problem is not having the ability to manually enter four digits to the left of the decimal i.e. 1000MHz to 1300MHz. The cmos memory will be flashed back to factory defaults now. Nice trick Quansheng pulled to pass the radio by the FCC.
OM0ET , You did a Great Job on this modification... It's quite the amazing radio for sure... I have a few one that is Modified with Firmware and one that is stock , as of yet..... Thank You
The new build is amazing and i did not know they had a revision. However , in respect of the strain being applied to the top casing with the weight and movement of the larger antenna(s) and adjusting volume etcetera with the two antennas . Unless they can be fixed to some pigtail arrangement i think it is more a proof of concept Paul. Great breakdown of the mechanics behind this mod. 73 Rab MM7BVP
M17/113-RG316 OD" 0.0980" about 2.5mm - not sure if too thick but thank you for video. Let my full call expire 40 years ago but I am retiring soon from my life as a Network Engineer so may reinstate my licence after watching your video
I have a question. At 38:14 in your video, you measure the grounding of a newly installed connector. In my case, the newly installed antenna connector does not beep at the center pole and ground. However, the existing U/V connector produces a beep between the center pole and ground. Is this normal?
Amazing! Now I have started this project with the v1 module. I replace the choke by the screen also remove the ic chip. If I get v2 module what I have done does it make any difference? Thank you 73's
Just replace the V1 board for V2 board and leave all around as it is, except a little trace to tiny capacitor for antenna, this has to be scratched and connect an external antenna to this tiny capacitor. All other things are explained in the video.
Hello, dear Paul! Please tell me, if this module is installed without an additional antenna, do I need to change the coil and capacitor as in the first option (green module)? 73!
Thanks for the good video! I installed this board for reception on one antenna. Almost very bad! I want to install an output to a second antenna. In your video you didn’t show why at 144 and 433 MHz? Or is the station only an HF receiver after modification?
Great video. Not clear on why I need the second antenna? couldnt I just change the existing antenna to one better for receiving HF when I wanted to listen to hf? ANd with the CEC firmware dont you loose the vhf/UHF repeater capability?
I just had an idea. Is it possible turn a insulated copper wire into a coax by wrapping it with a very thin single strand wire and covering it with heat shrink? Regards ZS1MMB
Thanx for all the work. Greatly appreciated. Just a question please. If you had cut the Track/Trace that lead up to the Capacitor from the original Antenna, then it seems the original Antenna is not doing/going anywhere, as the new BNC antenns is connected accros the old Cap and going into the new PCB? So what use is the original Antenna? How is it still working. I have placed an order for the newer V2.5 PCB, from Banggood, but that Board has the connection to second Antenna IPX connector already mounted to it, and comes with Cable and SMA. Do I have to replace or still remove the Cap. If Cap to be replaced, then will both Antenna work, one for the usual FM Demod, and the new Antenna with the Modified, long press of the 0 button Mode, no FM Demod Mode? Hope you can help. Just also to confirm, that is not required to replace the Choke under the Screen, as per the Version 1. Many thanx.
After mod, my radio display everything but not receiving any signal. I think flexible board is fault. Because when I switch to normal mode 2m/70cm I can recieve and transmit using new antenna socket. When switch to mod system I hearing only some typical sound but it's dosen meters what mode or band I use. No any signal recieve.
Hi Paul, I installed this following your guide but skipped removing the cap for the second antenna mod, turn the radio and can access the chip with fn+0 (FM), but there's barely any sound and no reception. I can hear _something_ if I turn the volume up to 100%, it sounds faintly like a detuned radio with no antenna (pure white noise). When I installed, I checked every connection with a multimeter continuity tester, I'm almost completely confident everything is installed correctly. Any advice on what might have gone wrong?
I would have liked to see the modification, HF performance without the second antenna port, with the telescopic antenna on the original, SMA port. Then perhaps the second antenna port added. I could easily do this modification. Would I do this modification? No, probably not. They obviously know this radio can be modified, why don’t they do it in the factory? Then sell it to the public? After seeing your first modification I thought they would release a factory version. How much is the modification board/kit?
HI, I followed your video and did the modification on a Quansheng UV-K5 (8). I had problems connecting the pad of the SI4732 V.2 board with resistor (the bridge with the shortest wire). I destroyed the board pad and I attached the wire with some solder to the board without the pad. The radio seems to work but I can't switch from dual frequency to single frequency and therefore I don't see the various options. By pressing the 0 button the word "wait" appears on the video but the radio stops and you have to turn it off and on again. Do you have some advice? Thank you Graziano - Italy
The video clip of the time you soldered the antenna disappeared and was discontinuous. I would like to know which terminals you soldered the antenna to on the original board. Could you please explain a bit? Thank you.
@8:31 I didn't understood this part. If I don't add a secondary antenna like you did in place of the LED, should I remove/desolder this fourth component or keep it?
Thanks Paul for the great video, If go with two antenna option, will I be able to receive VHF UHF with single original antenna? or would I need two antenna connected always? In other words, Would this full mod separate the RX and TX Antenna? thanks
We see very good know-how, with useful skills for all those who want to devote themselves to radio and maintaining the equipment. TNX Friend 73 QROs from CN8MM
Hello and thanks for the video. My question is if this modification is only for yhe uvk5 99 or can it be done in uvk5 or in the whole uvk5 familiar? Thanks again and 73 Klaus CE2KVL
Witam serdecznie jakim programem mogę dodawać i modyfikować kanały w paśmie UHF/VHF .Nigdzie nie mogę znaleźć odpowiedzi .CHIRP nie działa ,a oryginalny program dla QUANSHENG żąda hasła .Pozdrawiam
Is there a schematic available for this board? I have lost a component and need to replace it. Would also be interested to know the differences between the v2.0 and v2.1 boards.
Sorry but I'm a bit confused about the 2nd antenna modification. Can you switch between the two antenna or do you run them at the same time as a type of dual band setup? Are there any firmware mods that give the radio an SWR metering mode?
Nice ,thanks for FB Paul, Why the new antenna connector without ground connection!! Yes, it will work, but only for vertical antenna !! I guess. Thanks again
I got one of those mod chips but it needs assembly. Where can I find a guide? Also it appears to have two places for an ic but only one chip? Do I have to take one from the radio?
Hello. I am looking at a different version of the add on board. It comes with a micro antenna connector already mounted similar to those in mobile phones and computers. However Is this something that was changed from vs 1 to vs 2 or is this a vs 3 board I have found? Should I avoid the board with this connector or is it a better version? What did version 1 look like? Thanks
@@OM0ET Yes it appears to be V5. I found videos y a Russian operator who goes into great depth regarding these boards and other mods. Keep up the great work. Have been watching your portable and other operations.
I just made the mod, but after all I can't enter any frequency after pressing "FM". After "wait" apears, It's on "0" and I don't even get the top line of 20m,30m,40m,50m bands.... I don't know what to do. As much as I reset the device is the same, and I can not insert numbers in that menu, only the conventional menu. Help pleaseee
Hello, 73 greetings. I have two questions: 1. Is it necessary to build a dual antenna, or is the original antenna enough? 2. Is it possible to transmit on all bands or not?
Hello Paul, greetings from Lithuania.Thanks for the interesting video.. I wanted to ask, if the shielded cable should be connected, where should the cable armor be connected? Thanks. 73 by LY5SB.
@30:00 minutes if I understand you correctly you cut the trace for the stock SMA antenna? I’ve see people call this a dual antenna, but how is it dual if one is now not functional. I am just asking because I am thinking about running a small micro switch to go back and forth between them. Or does the new circuit still run a signal to the stock antenna? I have small enough shield coaxil, and a SMA instead of BMC for the mount so I’m going to order the SMA antenna. I was also thinking about installing a new LED with longer legs and repositioning it as well just to know when the radio is in boot loader firmware update mode.
Does anyone know the parameters or symbol or markings of the diode (probably a Schottky diode) added as high voltage protection? I bought a DIY kit and this diode is missing, and I would like to add it. Or where can I find a schematic of this version of the PCB.
Does the radio from aliexpress come with the 2nd antenna spot installed ? I because when you use your link it shows the radio and says its modified but it does not show the BNC connector.
The one thing that confuses me is this. If infact the factory antenna port no longer works after removing the diode, then why not just use the factory antenna port for one or the other antenna?
No mention of the 'choke' under the screen?, or replacing the capacitor? It's little wonder this is confusing, as there are so many variants of this modification. V1, 1.5, 2, 2.2, 2.5 and now 5, some single, some dual, and each with their own rules. The fitting is now the easy part, but figuring out what applies to each?, well.
hello Paul ! Can you give me the approximate diameter of the hole behind the screen through which you pass the cable connected to the antenna? Thank you Paul !
Thank you for taking the time to show the work in detail. You are very good at soldering. Looks like these mods are getting better and slightly easier each time. One day i might be able to try one myself.
Just a tip when removing that ic. Do not bend it up on it's opposite legs for fear of damaging traces on the board. Simply bend a piece of solid copper wire in a u shape so that it fits all legs at the same time. Flood the wire around the ic and it will come away in one piece with no bending required!
Thanks Paul for your work in this great little Radio.
I did the Mod too, and i‘m very happy :-)
For all the guys that have the same problem with the TX/RX-LED:
It is absolutely certain that the flashlight was removed by cutting the board, and a trace was interrupted, which is contacted through the pcb.
But it's not a problem, I followed the trace and re-laid a wire to restore the function of the LEDs.
The Cu-Wire is soldered from the top of the LEDs to the bottom right pin of the volume knob.
(View of the front of the lying PCB)
That's all!
73 de Henning
Thank you for your comment and this tip. Also can be used a different BNC socket with slimmer profile and then is no need to cut the board. I did it in my second radio with great results.
@@OM0ET can you share a link for this Connector, i orderd different types before, but there was all not usable .
73 de Henning
Hello. Use 50 ohm RF1.13 shielded cable (outer diameter 1.13 mm) or 50 ohm RG178 Teflon (PTFE) cable outer diameter 1.80 mm which will allow you to weld the ground braid without melting the central core. Thanks for the video.
Hey, so the conversation you caught on 20m was from Greece, and I’m 99% sure that same person is on a 70cm(!) repeater near me (these guys always brag about their HF rigs, I can see why…) I use pretty much the same radio, which is quite the testament to the versatility of these Quanshengs when modified appropriately! Cheers!
Awesome as always! Keep improving these radios!
Thank you, my friend! I watched maybe all the videos about this modification, and this video is the best. I’ve done everything as you show, it took half an hour, and it works great! Thank you very much!
I am so glad that my video helped you 😉👍
Was looking for this video! Thank you. Nicely explained and executed
To remove and make the "LED hump" flush, I used a soldering iron set to 340F with an old flattish blade tip and very very carefully melted it down little by little. It gave a nice smooth result. I imagine a woodworking iron would work too.
The smoke from this type of plastic was not black noxious smoke. It was barely visible and had an almost sweet smell. I was able to melt it the plastic indoors without stinking up the place, but use your judgment. :)
Melting certain types of plastic with a soldering iron also helps with shaping square or unusual holes. It's great for mounting square switches because you have more control over the shape than with a knife.
wow! very good soldering skills! thank you for a very detailed video, looking at how much work is being done i would love to buy the radio with a chip modification already in place!
Thanks a lot Paul. Amazing Mod!, for mine, I will put SMA as its small profile, Will also move LED somewhere else using cables. and surely will use wifi shield cable from old laptop. With Short wave ground matters!.
love these little mods. thank you
Greetings Paul from Venezuela, that modification is much better and easy to realize than the first one. Thanks for you dedication to explained us. 73`s my friend de YV2ESB.
It's just 73 without the s not trying to be rude
@@richardbowie1 is 'S and it can be use that way as well.
Just a tip when removing that ic. Do not bend it up on it's opposite legs for fear of damaging traces on the board. Simply bend a piece of solid copper wire in a u shape so that it fits all legs at the same time. Flood the wire around the ic and it will come away in one piece with no bending required!
I just finished my modification (simple version without second antena) and it works! Your video is very helpful, thank you.
What is meaning without second antenna
Well done and you have the hand of an artist. Nice soldering job, thank you for sharing!
Thank you very much! 😊
Dangerous unsoldering method, better use hot air or 2 soldering irons or melt from both side of the ic. And this is excellent guide video! Thanks a lot)
Wow! Great as always! Ordered all stuff will repeat the mod ASAP!
Excellent! Thank you so much for your efforts to demonstrate this.
Superb video, well presented in detail with good macro images. Thank you.
Thank you also for watching! 😊👍
Good evening Paul. Interesting video, but I don't understand everything. Secondary antenna without mass because only the central core is connected? Is the broadcast in uhf/vhf still possible or has this station become only a receiver? Thanks
I would suggest using a VHF/UHF antenna in the new connector when transmitting FM.
Exellent video, a lot of work, as i understood the modifacation is to make the radio ready for listening to amateurband with ssb.
A few things to consider.
The second jumper wire goes across a cap. Isn’t there a potential issue of a short? I would use insulated wire.
Second thing: I can’t tell if those are transistors or diodes. I do know they melt quite well. For the viewer, I am talking about the little black devices with three contacts.
Be careful and mind your soldering iron.
Great video and cheers.
Hi Paul, could you please tell me what is the difference between the IOTC SI4732 V2.0 module and the IOTC SI4732 V2.1? I've been looking for it for two days but I can't find it anywhere. Many thanks in advance. Vy 73, ha5cvz, op Miklos.
I have not this information, I am sorry.
The MFG could sell a zillion of these radios if they did this mod and added $20 to the price.
Theu do make them finished that way 84.99 canadian mean while I can get the radio for 25 and mod for 15
@@jaycheeks7393 I paid $29 for my original radio.
@@jaycheeks7393 AliExpress might be who your referring too. I have seen them for $76 delivered to the U.S. I have only seen the single antenna on AliExpress and
the description talks about an antenna mod of some sort sounding like it improves the single antenna performance?
@@jaycheeks7393where can you get one already modded?
@@jaycheeks7393
Hi There, where can I purchase one with the mod already as you say?
Cheers
If you are new to this radio, first thing to do out of the box is to go into the menu and find the RESET function, choose ALL. Proceed with the reset, and for safety sake turn off the radio and turn it back on. Your radio will now have 10-1300MHz tx and rx frequency range. The only problem is not having the ability to manually enter four digits to the left of the decimal i.e. 1000MHz to 1300MHz. The cmos memory will be flashed back to factory defaults now. Nice trick Quansheng pulled to pass the radio by the FCC.
OM0ET , You did a Great Job on this modification... It's quite the amazing radio for sure...
I have a few one that is Modified with Firmware and one that is stock , as of yet..... Thank You
The new build is amazing and i did not know they had a revision.
However , in respect of the strain being applied to the top casing with the weight and movement of the larger antenna(s) and adjusting volume etcetera with the two antennas . Unless they can be fixed to some pigtail arrangement i think it is more a proof of concept Paul.
Great breakdown of the mechanics behind this mod. 73
Rab MM7BVP
Bonds " Q ". Thanks for the video. That's the 2nd telecoms short film I have watched today. Very good.
M17/113-RG316 OD" 0.0980" about 2.5mm - not sure if too thick but thank you for video. Let my full call expire 40 years ago but I am retiring soon from my life as a Network Engineer so may reinstate my licence after watching your video
Good job Paul, fun watching how clever you are..I should send my fine work to you to do now...Thanks
Thank you Thomas :)
Great video. Looking forward to seeing how it performs. My expectations are low.
Wonderful job.
👏🏻👏🏻👏🏻
Thanks for share with us.
73 from PU2SWR
🇧🇷🤝🏻
I have a question. At 38:14 in your video, you measure the grounding of a newly installed connector. In my case, the newly installed antenna connector does not beep at the center pole and ground. However, the existing U/V connector produces a beep between the center pole and ground. Is this normal?
Wow my idol. Another great job and amazing video Paul.
Thank you very much my friend! :)
I just hope they can make it transmit
I hope it will possible most probably with new chip and upgraded firmware!
This chip is only reciever.
Amazing! Now I have started this project with the v1 module. I replace the choke by the screen also remove the ic chip. If I get v2 module what I have done does it make any difference? Thank you 73's
This is my question also
@@drabfab3014 I'm still waiting!
Just replace the V1 board for V2 board and leave all around as it is, except a little trace to tiny capacitor for antenna, this has to be scratched and connect an external antenna to this tiny capacitor. All other things are explained in the video.
Jaký je rozdíl v příjmu přes stávající SMA konektor oproti přidanému BNC? Zrovna moc se mi nechce vrtat druhý konektor, proto se ptám.
Z externej antény je lepší príjem a lepšia citlivosť prijímača.
Paul, I think you soldered the plus side of the speaker to the neg pad? you can use RG-316 coax
Yes
it doesn't matter what polarity is connected on a mono speaker
wow thats a SICK mod well done
Many compliments! good work! But with this mods it's possible transmit to HF frequency?
It is not possible.
Hello, dear Paul! Please tell me, if this module is installed without an additional antenna, do I need to change the coil and capacitor as in the first option (green module)? 73!
Thanks for the good video! I installed this board for reception on one antenna. Almost very bad! I want to install an output to a second antenna. In your video you didn’t show why at 144 and 433 MHz? Or is the station only an HF receiver after modification?
Sure, HF is only for RX. You can TX only on VHF/UHF after this mod.
Only shortwave amateurband ssb receiving, no tx
Good Job Paul 73's PD1MLB
Great video. Not clear on why I need the second antenna? couldnt I just change the existing antenna to one better for receiving HF when I wanted to listen to hf? ANd with the CEC firmware dont you loose the vhf/UHF repeater capability?
The existing capacitor value won't allow what you're suggesting.
So the second socket is to bypass the filters on the factory antenna ??
@@MidlifeRenaissanceMan The capacitor he removes @8:24 is the one I'm referring to. Later he solders across its old location @25:54
@@garycook5125 One would think that makes the original antenna obsolete?
@@emavideo Correct, it is no longer connected. If you watch for a little bit after @25:54, he cuts the trace that originally led to the old antenna.
I just had an idea.
Is it possible turn a insulated copper wire into a coax by wrapping it with a very thin single strand wire and covering it with heat shrink?
Regards ZS1MMB
Hello, I am interested in the BNC connectors for a 27MHz antenna. Could you please share how to purchase these connectors? Thank you!
Thanx for all the work. Greatly appreciated. Just a question please. If you had cut the Track/Trace that lead up to the Capacitor from the original Antenna, then it seems the original Antenna is not doing/going anywhere, as the new BNC antenns is connected accros the old Cap and going into the new PCB? So what use is the original Antenna? How is it still working. I have placed an order for the newer V2.5 PCB, from Banggood, but that Board has the connection to second Antenna IPX connector already mounted to it, and comes with Cable and SMA. Do I have to replace or still remove the Cap. If Cap to be replaced, then will both Antenna work, one for the usual FM Demod, and the new Antenna with the Modified, long press of the 0 button Mode, no FM Demod Mode? Hope you can help. Just also to confirm, that is not required to replace the Choke under the Screen, as per the Version 1. Many thanx.
14:31 for the second jumper, a potentially cleaner option (if you have the parts) is to replace that smaller capacitor with an 0402 0 Ohm resistor.
After mod, my radio display everything but not receiving any signal. I think flexible board is fault. Because when I switch to normal mode 2m/70cm I can recieve and transmit using new antenna socket. When switch to mod system I hearing only some typical sound but it's dosen meters what mode or band I use. No any signal recieve.
Excellent Mod, Congradulations. I Could never have patience to do a mod. like that., Thank You.
Hi Paul, I installed this following your guide but skipped removing the cap for the second antenna mod, turn the radio and can access the chip with fn+0 (FM), but there's barely any sound and no reception. I can hear _something_ if I turn the volume up to 100%, it sounds faintly like a detuned radio with no antenna (pure white noise).
When I installed, I checked every connection with a multimeter continuity tester, I'm almost completely confident everything is installed correctly. Any advice on what might have gone wrong?
I would have liked to see the modification, HF performance without the second antenna port, with the telescopic antenna on the original, SMA port. Then perhaps the second antenna port added. I could easily do this modification. Would I do this modification? No, probably not. They obviously know this radio can be modified, why don’t they do it in the factory? Then sell it to the public? After seeing your first modification I thought they would release a factory version. How much is the modification board/kit?
AliExpress already has a modified UVK-6 radio station.
HI,
I followed your video and did the modification on a Quansheng UV-K5 (8). I had problems connecting the pad of the SI4732 V.2 board with resistor (the bridge with the shortest wire).
I destroyed the board pad and I attached the wire with some solder to the board without the pad.
The radio seems to work but I can't switch from dual frequency to single frequency and therefore I don't see the various options.
By pressing the 0 button the word "wait" appears on the video but the radio stops and you have to turn it off and on again.
Do you have some advice?
Thank you
Graziano - Italy
The video clip of the time you soldered the antenna disappeared and was discontinuous. I would like to know which terminals you soldered the antenna to on the original board. Could you please explain a bit? Thank you.
@8:31 I didn't understood this part. If I don't add a secondary antenna like you did in place of the LED, should I remove/desolder this fourth component or keep it?
Excelente video, muy bien explicado y muy completo, gracias por todo y felicitaciones
Wow! Super video thanks!
Thanks Paul for the great video, If go with two antenna option, will I be able to receive VHF UHF with single original antenna? or would I need two antenna connected always? In other words, Would this full mod separate the RX and TX Antenna? thanks
An answer to your question is in the video already ;)
We see very good know-how, with useful skills for all those who want to devote themselves to radio and maintaining the equipment. TNX Friend 73 QROs from CN8MM
Thank you for your clear and consise explanation.
awesome video, i might just attempted this with the new boards
Hello and thanks for the video. My question is if this modification is only for yhe uvk5 99 or can it be done in uvk5 or in the whole uvk5 familiar?
Thanks again and 73
Klaus
CE2KVL
They are basically all the same radios. So it will work with all of them.
Witam serdecznie jakim programem mogę dodawać i modyfikować kanały w paśmie UHF/VHF .Nigdzie nie mogę znaleźć odpowiedzi .CHIRP nie działa ,a oryginalny program dla QUANSHENG żąda hasła .Pozdrawiam
Is there a schematic available for this board? I have lost a component and need to replace it. Would also be interested to know the differences between the v2.0 and v2.1 boards.
Sorry but I'm a bit confused about the 2nd antenna modification. Can you switch between the two antenna or do you run them at the same time as a type of dual band setup? Are there any firmware mods that give the radio an SWR metering mode?
thank you for video ! i didn't see if you connect the BNC to the chassis ? is the black cable a coaxial ? in case of another antenna ? 73
Great Video. From A to Z tutorial. So grateful!!❤
Thank you Paul. Great work, great video.
The LED can be relocated to the base, or side.
Actually yes :)
Can the led be changed for a brighter one?
Nice ,thanks for FB Paul, Why the new antenna connector without ground connection!! Yes, it will work, but only for vertical antenna !! I guess. Thanks again
I got one of those mod chips but it needs assembly. Where can I find a guide? Also it appears to have two places for an ic but only one chip? Do I have to take one from the radio?
There is a new version of this chip, can you do a video on that please.
Great video Paul thanks!
Hello. I am looking at a different version of the add on board. It comes with a micro antenna connector already mounted similar to those in mobile phones and computers. However Is this something that was changed from vs 1 to vs 2 or is this a vs 3 board I have found? Should I avoid the board with this connector or is it a better version? What did version 1 look like? Thanks
Your's is most probably a 5th version
@@OM0ET Yes it appears to be V5. I found videos y a Russian operator who goes into great depth regarding these boards and other mods. Keep up the great work. Have been watching your portable and other operations.
It stops at the "Wait" screen and cannot proceed any further. What is the solution?
For me resoldering the crystal did the job...
check the soldering job done between the V2 board and the main board.
I just made the mod, but after all I can't enter any frequency after pressing "FM". After "wait" apears, It's on "0" and I don't even get the top line of 20m,30m,40m,50m bands.... I don't know what to do. As much as I reset the device is the same, and I can not insert numbers in that menu, only the conventional menu. Help pleaseee
I don't get the 'antenna wire' - part. You are using thin coax, but the coax shield is not connected on any side? (radio ground or BNC connector
Unfortunately, I didn't have such tiny coax so I had to use just a wire. Body of BNC connector is touching of the shasi.
It's great that someone is thinking about Czech subtitles 🙂
thank you for your video, does this upgrade works for uv-5r-plus?
Can I buy this radio with the mod and extra antenna installed? I have the money but not the time. Please advise…
I have the same radio with si4732 v2 and cec 051 but I noticed a loss in vhf and uhf reception, is this normal? I only use one antenna.
Hello, 73 greetings. I have two questions:
1. Is it necessary to build a dual antenna, or is the original antenna enough?
2. Is it possible to transmit on all bands or not?
You can also use the tiny coax used to wire laptop wifi cards to the small tab antennas, Amazon has these antennas cheap.
Hello Paul, greetings from Lithuania.Thanks for the interesting video.. I wanted to ask, if the shielded cable should be connected, where should the cable armor be connected? Thanks. 73 by LY5SB.
Used this video as a guide to modify one of mine. Thanks!
Did it work?
@@OM0ET Yes :) But i did not do the extra antenna connector.
@TomHaslett yes, it is fine 😉👍
do you have to add the second antenna i just listen to the bands i dont tranment
Good question
This is also my question: What did we get using 2nd antena except covering VGO & UHF without changing the antenna.
@@MilanDjordjevicBG better sensitivity
for a better sensitivity on HF
RX only
Thank You for great tutorial. It's masterpiece of Your perfect done mod. 73's 📻📡
@30:00 minutes if I understand you correctly you cut the trace for the stock SMA antenna? I’ve see people call this a dual antenna, but how is it dual if one is now not functional. I am just asking because I am thinking about running a small micro switch to go back and forth between them. Or does the new circuit still run a signal to the stock antenna?
I have small enough shield coaxil, and a SMA instead of BMC for the mount so I’m going to order the SMA antenna. I was also thinking about installing a new LED with longer legs and repositioning it as well just to know when the radio is in boot loader firmware update mode.
Hello I have questions second version will by compatibility with UV k5 ( 8 )?
Excellent video. Can this modification be done on a UV-K5 (8)?
Yes it can!
Does anyone know the parameters or symbol or markings of the diode (probably a Schottky diode) added as high voltage protection? I bought a DIY kit and this diode is missing, and I would like to add it. Or where can I find a schematic of this version of the PCB.
Does the radio from aliexpress come with the 2nd antenna spot installed ? I because when you use your link it shows the radio and says its modified but it does not show the BNC connector.
The one thing that confuses me is this.
If infact the factory antenna port no longer works after removing the diode, then why not just use the factory antenna port for one or the other antenna?
No mention of the 'choke' under the screen?, or replacing the capacitor?
It's little wonder this is confusing, as there are so many variants of this modification. V1, 1.5, 2, 2.2, 2.5 and now 5, some single, some dual, and each with their own rules. The fitting is now the easy part, but figuring out what applies to each?, well.
I’m just curious. Does this device use the ATmega microcontroller?
No, it's a clone of STM32G030.
hello Paul ! Can you give me the approximate diameter of the hole behind the screen through which you pass the cable connected to the antenna? Thank you Paul !
I gues maybe 1mm only
@@OM0ET thx :-)
Excellent SV2YJ
Absolutely awesome
Excellent work.🎉🎉
Awesome upgrade.
Hi Paul, which firmware would you recommend for these radios with or without the new chip module?