AMAZING VER.2 - HF FULL BAND Modification for Quansheng UV-K5(99)

Рет қаралды 106,989

25 күн бұрын

New V.2 Si4732 Module is truly amazing modification, which turns the UV-K5 to a REAL general coverage Radio! It's sensitivity on HF is equal to the portable TECSUN's receivers.
Questions and Answers video after this mod: kzfaq.infom7C2YwC_Tcw?...
MODIFIED vs. GENUINE HW - HF SSB Reception Quanshengs UV-K5 video: • MODIFIED vs. GENUINE H...
Quansheng UV-K5(99): www.aliexpress.com/item/10050...
Buy already modded UV-K5 here:
a.aliexpress.com/_EHhrOT5
V2 Si4732 Module PCB: a www.aliexpress.com/item/10050...
CEC 0.41HF Custom Firmware: www.hamskey.com/2024/03/introd...
Antenna 27MHz Telescopic Whip(BNC): www.aliexpress.com/item/10050...
BNC-F socket used in the video: www.ebay.com/itm/381725229833
#v2 #modification #quansheng #uvk5 #fullband

Пікірлер: 313

@CB-RADIO-UK 23 күн бұрын

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.

@johnemmons9087 23 күн бұрын

Awesome as always! Keep improving these radios!

@zalves2000 23 күн бұрын

Was looking for this video! Thank you. Nicely explained and executed

@jellybean7253 23 күн бұрын

love these little mods. thank you

@diabolo3506 23 күн бұрын

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.

@edisonjohn6346 23 күн бұрын

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.

@stevehaynes2857 21 күн бұрын

Excellent! Thank you so much for your efforts to demonstrate this.

@kepkopke 15 күн бұрын

Wow! Great as always! Ordered all stuff will repeat the mod ASAP!

@haggar11 23 күн бұрын

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!.

@TheZimberto 21 күн бұрын

Great video. Looking forward to seeing how it performs. My expectations are low.

@ugsisr 23 күн бұрын

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

@MI7DJT 22 күн бұрын

Great video Paul thanks!

@ominkan3129 22 күн бұрын

Wow my idol. Another great job and amazing video Paul.

@OM0ET 3 күн бұрын

Thank you very much my friend! :)

@louisquatorze6060 23 күн бұрын

Wow! Super video thanks!

@user-ym7wv4cw8w 14 күн бұрын

very great modification. two thumbs up

@basshorseman998 20 күн бұрын

Good job Paul, fun watching how clever you are..I should send my fine work to you to do now...Thanks

@OM0ET 3 күн бұрын

Thank you Thomas :)

@RINNTY 23 күн бұрын

Excellent Mod, Congradulations. I Could never have patience to do a mod. like that., Thank You.

@luanesposito3 18 күн бұрын

Wonderful job. 👏🏻👏🏻👏🏻 Thanks for share with us. 73 from PU2SWR 🇧🇷🤝🏻

@kilohertz4254 20 күн бұрын

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

@OM0ET 3 күн бұрын

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.

@kilohertz4254 3 күн бұрын

@@OM0ET can you share a link for this Connector, i orderd different types before, but there was all not usable . 73 de Henning

@PepeCheb 20 күн бұрын

Awesome upgrade.

@ZonaEA 22 күн бұрын

Great Video. From A to Z tutorial. So grateful!!❤

@Dead_Cereal 16 күн бұрын

awesome video, i might just attempted this with the new boards

@mustaphacherkaoui970 22 күн бұрын

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

@Yonni6502 13 күн бұрын

This is a fantastic video! Thank you so much for taking all the time to make the video, and then for all the editing and then for sharing it with all of us! Is there a mod that helps this radio receive and sound better on aircraft bands? Out of the box it seems kind of scratchy and hard to understand. I don't know if the front end gets overloaded or what exactly is going on. But I'm 100% ready to try a hardware (or software) mod. Again, thank you so much for the video! That was just a fantastic example of how to implement the mod!

@OM0ET 3 күн бұрын

Sure, for example if you install the IJV 3.18 version custom firmware you will get an AIR band with great quality. Search for the link in some of my older videos descriptions. But this modification board activates the CEC firmware only.

@el84xx87 23 күн бұрын

Good Job Paul 73's PD1MLB

@JohnUsp 23 күн бұрын

Awesome, thanks.

@placesandspaces1660 18 күн бұрын

wow thats a SICK mod well done

@HE9JSD 21 күн бұрын

Good job !

@snakezdewiggle6084 21 күн бұрын

Thank you Paul. Great work, great video. The LED can be relocated to the base, or side.

@OM0ET 3 күн бұрын

Actually yes :)

@MarkyMMP 22 күн бұрын

Thanks Paul. Great video.. 73’s M0PPK.

@Marek_M79 23 күн бұрын

Thank You for great tutorial. It's masterpiece of Your perfect done mod. 73's 📻📡

@panagiotistrifidis9683 23 күн бұрын

Excellent SV2YJ

@anw144 23 күн бұрын

Excellent work hz1ol

@EC5ABG 23 күн бұрын

Muy buen trabajo, 73.

@markmontgomery9722 7 күн бұрын

thank you doctor great video as always 73s

@1cristojojo1 23 күн бұрын

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

@garycook5125 20 күн бұрын

I would suggest using a VHF/UHF antenna in the new connector when transmitting FM.

@maxastuto 23 күн бұрын

Many compliments! good work! But with this mods it's possible transmit to HF frequency?

@kelvinjhill 23 күн бұрын

It is not possible.

@brucekempf4648 9 күн бұрын

You can also use the tiny coax used to wire laptop wifi cards to the small tab antennas, Amazon has these antennas cheap.

@kelvinjhill 23 күн бұрын

This is a very good video showing the modification. Did you have other information beforehand on how the modification should be installed, or did you have to make it up yourself? 😊

@OM0ET 3 күн бұрын

Thank you. I have asked the seller for some more instructions

@Stewart-HA5RV 23 күн бұрын

Great job, well done!!! 73.

@yutubkuful 18 күн бұрын

👍 Good Explanation, Thx u, 73

@pablonorthwork 23 күн бұрын

amazing

@26_Radio 23 күн бұрын

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?

@OM0ET 3 күн бұрын

Sure, HF is only for RX. You can TX only on VHF/UHF after this mod.

@dazzp2 19 күн бұрын

Great bit of Home Brewing , well done, it's great to see soldering Irons out again like the old days 73s M0DHA

@haggar11 15 күн бұрын

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

@OM0ET 3 күн бұрын

An answer to your question is in the video already ;)

@quadplay2591 18 күн бұрын

Nice job

@sekibulja-fu3bv 23 күн бұрын

Excellent tutorial video!!!! Thank you! Can this modification work with other firmwares?

@OM0ET 3 күн бұрын

No, it works with CEC firmware only

@robblerouser5657 22 күн бұрын

I love it.

@stevegj6wri216 15 күн бұрын

Superbly presented video Sir. GJ6WRI✅

@pcostadias 23 күн бұрын

I just hope they can make it transmit

@dimitrisz.6939 21 күн бұрын

I hope it will possible most probably with new chip and upgraded firmware!

@nehanichikahuak 14 күн бұрын

Hi, thanks for the video, is amazing !what is the wire you use to connect the jumpers

@OM0ET 3 күн бұрын

one string of the tiny cable wire

@MiroSkunda 18 күн бұрын

TRX with SSB and CW without encoder is like a Rubik's cube 🙂

@JC-cs6py 23 күн бұрын

Great job, very well explained as always, just one thing, once the mod is fitted and the radio is reset, what program is used to add channels and also if it is chirp, it needs a .py (python file) where can i get this file from?

@OM0ET 3 күн бұрын

No, for CEC the genuine program only can be used for programming, not Chirp

@Subgunman Күн бұрын

When you put it to the first test on 20 meters the guys were speaking in Greek. 14.309 KHz. This is an interesting mod and as others have said it would be nice if it was available with the mod from the factory. Was through my scrap box and did find some very fine coax line that is less than half the diameter of the RG174. Not sure of the impedance and it might even be for audio circuits. Would not really matter if just for receive. Now we will wait another decade to see if someone will come up with a cheap all band RX and TX small transceiver. 73!

@klausvonloocks6062 21 күн бұрын

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

@ahimsa6529 11 күн бұрын

They are basically all the same radios. So it will work with all of them.

@Viktornowhere2-de4vi 8 күн бұрын

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)

@user-iv7tj9jj6p 15 күн бұрын

Спасибо! Вы вдохновляете своим видео на эксперименты, с удовольствием вас смотрю.

@OM0ET 3 күн бұрын

Thank you!

@user-ok7if9rk4y 23 күн бұрын

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.

@Nallopro_v2 14 күн бұрын

Did you use tin to desolder the components?

@acortejoso 20 күн бұрын

Excellent video. Can this modification be done on a UV-K5 (8)?

@ahimsa6529 11 күн бұрын

Yes it can!

@Screamingtut 20 күн бұрын

Paul, I think you soldered the plus side of the speaker to the neg pad? you can use RG-316 coax

@peggenlejoncar9529 19 күн бұрын

Yes

@OM0ET 3 күн бұрын

it doesn't matter what polarity is connected on a mono speaker

@Twisted-wizard 16 күн бұрын

Awesome as usual thank you.. Just wish there was a way to combine ijv and cec firmware Wouldn't mind having a full band radio with 999 memory slots.. lol with a way to increase output wattage.. tidradio td-h8 allows up to 10 watt output.. Stumbled on to a Motorola clone that is supposed to be capable of tx up to 25 watts.. Apex 8000 . I need to do some more research on it .. to see what I can get away with..

@VassVince 23 күн бұрын

Thanks Paul! What is the main advantage compared to the first HF mod ?

@OM0ET 3 күн бұрын

louder sound, better reception

@VassVince Күн бұрын

Thank you Paul. I think I had enough with the first version. I really don't want to ruin another HT as long as I have dedicated HF receiver. The reason is that the firmware concentrates on the HF function thus the VHF and UHF side has to suffer (lower tx power, fewer functions and settings, you are stuck on this firmware etc.). Many thanks for your fine instructional videos! 73 de YO6VSS.

@jeanmarcPrizzon 4 күн бұрын

Hello Paul! thank you for this video! Does this also work on the entire UVK5 range? Hello Paul ! merci pour cette video ! Est ce que cela fonctionne aussi sur toute la gamme UVK5 ?

@OM0ET 3 күн бұрын

LW/MW/HF/6M/FM/VHF/UHF

@jeanmarcPrizzon 3 күн бұрын

@@OM0ET merci Paul 👍

@deathspal 17 күн бұрын

So I'm going to take a stab at this but I'm thinking of using "IPEX4 Patch Antenna Base 1.5mm 4th Generation IPEX U.FL MHF4 SMD SMT Solder U.fl/Ipex Connector for PCB Mount Socket Jack Female RF Coaxial Connector" to make the connection on the board and then a standard IPX to SMA lead and coming out the top of the radio SMA... this is the style of connection used in laptops for wifi and cellular... Thoughts? This would solve for a Coax lead (better shielding and grounding)

@mykdelta 2 күн бұрын

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

@asherael 23 күн бұрын

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?

@itrstt66 8 күн бұрын

so the way you did the antenna mod, you lost vhf/uhf reception? or can you still receive it on the new one? also despite of loosing that RX can you still transmit on the factory antenna?

@OM0ET 3 күн бұрын

VHF/UHF is intact even after mod

@itrstt66 3 күн бұрын

@@OM0ET and is it ok to transmit with both antennas?

@lotsaringwear2937 3 күн бұрын

when the soldering iron comes out, I walk away lol

@OM0ET 3 күн бұрын

😅👍

@hankaajindrich8622 23 күн бұрын

Jaký je rozdíl v příjmu přes stávající SMA konektor oproti přidanému BNC? Zrovna moc se mi nechce vrtat druhý konektor, proto se ptám.

@OM0ET 3 күн бұрын

Z externej antény je lepší príjem a lepšia citlivosť prijímača.

@pu2clr 23 күн бұрын

I’m just curious. Does this device use the ATmega microcontroller?

@user-ml3sz3mm5y 22 күн бұрын

No, it's a clone of STM32G030.

@n1kkri 5 күн бұрын

Would like a a comparison test to the 2 antenna mod verse the one they are selling completed modded but with a single antenna. They claim they also added a high gain mod which I am assuming for HF ?

@OM0ET 3 күн бұрын

Yes, but I need to have one modded radio :)

@n1kkri 3 күн бұрын

Will this mod work on the original UV-K5 ?

@Nissan350z33 9 күн бұрын

Does omoet ever reply to questions?

@jalvin1947 9 күн бұрын

I bought the modified version you suggested which comes with cec-05hf and pressing 0 key just displays wait for ever. Few times it worked but most of the time screen displays wait. Any idea?. Thank for your amazing videos. 73

@OM0ET 9 күн бұрын

Yes, resolder again 8 contacts on the Flex board on the place of the ex-FM chip.

@reedreamer9518 Күн бұрын

I don't know about the HF, but I could definitely use SSB on 2m and 70cm.

@richardevans5921 23 күн бұрын

Thank you Paul for the content, really good as always, 73 de Richard G0VCW

@chrisdelong2932 23 күн бұрын

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?

@user-ys6xh1xb6w 22 күн бұрын

AliExpress already has a modified UVK-6 radio station.

@charleszimmermann7784 4 күн бұрын

Am I just being stupid, I didn’t see you ground the HF antenna, is it touching a ground and if you used coax where would you ground the outer conductor? Thanks for the video, just one more Ham project to consider.

@OM0ET 3 күн бұрын

I didn't had such tiny coax available, so I used just a wire. Body of BNC connector is touching of the metallic shasi which is grounded.

@user-momowei 17 күн бұрын

May I ask what kind of antenna you use, a high frequency antenna?

@OM0ET 3 күн бұрын

it is CB antenna

@themajasticcreature 14 күн бұрын

Is this a direct replacement for the v1 board or do I have to reverse the capacitor and choke I replaced with the v1?

@OM0ET 3 күн бұрын

You can use this new board as an upgrade from V1. Just replace the board and leave all around as it is.

@wilcekmay9052 11 күн бұрын

is there something similar for baofeng uv-82?

@wydras17 23 күн бұрын

Hi Paul! Thank you for this video! I've noticed on both of my Quansheng UV-K5(8) radios that the IJV mod (3.14) causes harmonic interference on 70cm and 2m bands. The radios have original hardware. How does the mod you presented affect transmission on those bands? I would like to make the modification with an additional PCB, but I am wondering if it has any impact on TX on those bands.

@kelvinjhill 23 күн бұрын

I believe that the harmonics are a problem regardless of which firmware you are using.

@wydras17 23 күн бұрын

@@kelvinjhill Thx for answer. Do you think this is normal behavior of this transciever?

@Land_of_Goshen 23 күн бұрын

so the old sma jacket is not used anymore? older versions was different.

@OM0ET 3 күн бұрын

is used for VHF/UHF - RX/TX

@ratman4747 22 күн бұрын

Hello, I would like to ask you to share the firmware for the version without the additional antenna. It would make it easier for me to use. Is that possible ? I really ask you with the k5prog-win program and possibly some driver for the radio station. I am not able to find it properly. Thank you very much.

@Eagle8_5 18 күн бұрын

Hi, fits the v2 Chip in the k5-8 too?

@ahimsa6529 11 күн бұрын

Yes.

@n1kkri 23 күн бұрын

The MFG could sell a zillion of these radios if they did this mod and added $20 to the price.

@jaycheeks7393 23 күн бұрын

Theu do make them finished that way 84.99 canadian mean while I can get the radio for 25 and mod for 15

@n1kkri 23 күн бұрын

@@jaycheeks7393 I paid $29 for my original radio.

@n1kkri 3 күн бұрын

@@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?

@thomashardy9994 3 күн бұрын

@@jaycheeks7393where can you get one already modded?

@paulenglish9383 2 күн бұрын

@@jaycheeks7393 Hi There, where can I purchase one with the mod already as you say? Cheers

@mikloscarstea6616 11 күн бұрын

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.

@OM0ET 3 күн бұрын

I have not this information, I am sorry.

@Touchatout59 13 күн бұрын

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 !

@OM0ET 3 күн бұрын

I gues maybe 1mm only

@Touchatout59 3 күн бұрын

@@OM0ET thx :-)

@petarbajai 21 сағат бұрын

you can't just use the normal antenna connection for the same functionality or do you really need to connect a 2nd antenna?

@OM0ET 20 сағат бұрын

Bypassing built-in VHF/UHF filters gives you a better sensitivity

@Hank_W6IR 23 күн бұрын

Yeah, I think I'll skip the dual antenna mod when I get the V2 board.

@tomasTMKcabaj 23 күн бұрын

wow thx 73*

@themajasticcreature 14 күн бұрын

So what's the point of the second antenna? Is the main antenna acting like a ground orrr

@OM0ET 3 күн бұрын

original SMA connector goes trough the VHF/UHF circuitry with high pass filters. It is not so good for HF reception.

@dimitrisz.6939 22 күн бұрын

The total modification with the latest update of this film where is compatible only with the latest quasheng?

@OM0ET 3 күн бұрын

All UV-K5 models are compatible

@dimitrisz.6939 3 күн бұрын

@@OM0ET Thanks bro!

@emavideo 23 күн бұрын

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?

@garycook5125 22 күн бұрын

The existing capacitor value won't allow what you're suggesting.

@MidlifeRenaissanceMan 21 күн бұрын

So the second socket is to bypass the filters on the factory antenna ??

@garycook5125 21 күн бұрын

@@MidlifeRenaissanceMan The capacitor he removes @8:24 is the one I'm referring to. Later he solders across its old location @25:54

@emavideo 21 күн бұрын

@@garycook5125 One would think that makes the original antenna obsolete?

@garycook5125 21 күн бұрын

@@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.

@elesjuan 20 күн бұрын

I'm not going to lie, I'm a little bit jelly that the receive quality and lack of QRM you get out of that gosh dang HT is WORLDS better than my IC-7000 w/5btv vertical, or literally ANY antenna I put up at the QTH. My noise floor is basically at an S9 at home. :(