Simple but very effective, made something similar a while ago but as I was driving a 706 I added CAT control with the USB to serial board. Nice to see a little progress on the sdr. 73 for now...
Are the NE612's set up as in the original SSB radio, if so I'm sure the same transformer set up would be fine unless you're looking to try a different approach and in that case I have no idea.
@@ed-jf3xh Thanks. A monitor speaker would make it a little less sterile. Pity there is no mic input there as that would remove everything to the rear of the radio.
@@CharlieMorrisZL2CTM True enough. The wiring for the TS130 is a bit different in that the audio at that pin is from the detector rather than a sample of the output. My plan is to use the spare pin, 7, and tie it to the mic input through a voltage divider (pin 7 on the TS120 should be spare as well). Just waiting on my DIN connector to arrive. Then I'll attach it to a USB audio interface with some trimmers to adjust DATA levels, without messing with my MIC levels. At least, that the plan. Cheers...
yr voltage divider is not the 1k with the 10k, but rather the 1k//600ohm and 10k. It won't change a thing though, but you can just ignore the 1k. Relay is a very bad idea for fast changing 0-1, an opto-isolator(coupler) is what you need. They are the 6 pin little dil chips you find for .99c a 20. Check Dave Joness vids on that. Thanks for the vid and attempt
I built an identical setup for my first HF radio an FT747 but with CAT as well. All worked fine until I shorted the Audio output. Oops - ah well it sold on eBay anyway😄. Still using the same circuit for my FT857 now. I also have a shiny 7300 with one USB lead to do everything BUT the USB connection is a noise magnet - might go back to analogue audio inputs with isolation
Hi, Do you have something for android/ios to handheld radio (analog) interface? Which can be use for zello to radio - radio to zello or something like that.. Thanks..
I have played with many radio circuits over the past year and stumbled on your video's, they are very inspiring to me. I have worked with electronics for many years and repaired radio's also, but I want very much to build my own. I love that feeling of using the things you build. thank you very much for doing all the video's they are great! it is hard to figure out where to start, and with someone leading makes it so much easier.
Simple but very effective, made something similar a while ago but as I was driving a 706 I added CAT control with the USB to serial board.
Nice to see a little progress on the sdr.
73 for now...
Thanks Brian. Things are ticking along. Just looking at how best to interface the NE612 with the RF splitter/combiner.
Are the NE612's set up as in the original SSB radio, if so I'm sure the same transformer set up would be fine unless you're looking to try a different approach and in that case I have no idea.
Please share the schematic of the relay, usb catd and PTT.
Are their any commercial options?
Good job. Of course you already know you can get your audio off pin 1 on the remote connector. So you don't disable the speaker.
Which remote connector is that Ed?
@@CharlieMorrisZL2CTM The 7-pin DIN next to the 1/4" KEY jack.
@@ed-jf3xh Thanks. A monitor speaker would make it a little less sterile. Pity there is no mic input there as that would remove everything to the rear of the radio.
@@CharlieMorrisZL2CTM True enough. The wiring for the TS130 is a bit different in that the audio at that pin is from the detector rather than a sample of the output. My plan is to use the spare pin, 7, and tie it to the mic input through a voltage divider (pin 7 on the TS120 should be spare as well). Just waiting on my DIN connector to arrive. Then I'll attach it to a USB audio interface with some trimmers to adjust DATA levels, without messing with my MIC levels. At least, that the plan. Cheers...
Thanks for your video I am building something similar for my kenwood trc 80 and definitely this helped a lot
Great video, do you have a parts list by any chance? I tried finding the related blog post on your site but couldn't find anything. Thanks in advance!
yr voltage divider is not the 1k with the 10k, but rather the 1k//600ohm and 10k. It won't change a thing though, but you can just ignore the 1k. Relay is a very bad idea for fast changing 0-1, an opto-isolator(coupler) is what you need. They are the 6 pin little dil chips you find for .99c a 20. Check Dave Joness vids on that. Thanks for the vid and attempt
I built an identical setup for my first HF radio an FT747 but with CAT as well. All worked fine until I shorted the Audio output. Oops - ah well it sold on eBay anyway😄. Still using the same circuit for my FT857 now. I also have a shiny 7300 with one USB lead to do everything BUT the USB connection is a noise magnet - might go back to analogue audio inputs with isolation
That's interesting Graham about the USB noise. I'll have to look out for that for the Teensy digital modes build.
Hi, Do you have something for android/ios to handheld radio (analog) interface? Which can be use for zello to radio - radio to zello or something like that.. Thanks..
Sorry, no.
I hope this helps ua-cam.com/video/LXvhvV57UtM/v-deo.html
What is the purpose of isolation transformers?
Why are they important?
Hi Nikhil. I use them to break any ground loops, which in turn reduces noise.
Hi Charlie,
please can you give the schematic for that?
Know it's simply but your help avoid mistakes or other issues about radio pins etc...
Dinos
73
Hi. It should be on the blog at: zl2ctm.blogspot.com/
@@CharlieMorrisZL2CTM tnx Charlie 73
USB red pcb on relay?
Yes. It's a USB to serial adapter, which I'm using for PTT.
Onde posso comprar esses transformador?
He already said Aliexpress
Wow pretty much two projects in one, sound card and radio. lol
Yeah it's coming along Curt. Hopefully, I'll have the receiver running in the next couple of days.
I have played with many radio circuits over the past year and stumbled on your video's, they are very inspiring to me. I have worked with electronics for many years and repaired radio's also, but I want very much to build my own. I love that feeling of using the things you build. thank you very much for doing all the video's they are great! it is hard to figure out where to start, and with someone leading makes it so much easier.
Look up Easy-Digi on eBay. Seems like what you built there. Nice job cabling too!
Thanks Ronny. All good fun.
@@CharlieMorrisZL2CTM Yep! Many ways to do it! You took care in this!