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Couple of questions

Max Donoghue #468 Thanks Greg,? I'll take another look at my wiring. I've built homebrew interfaces for years and never had this type of problem. Max
Max Donoghue #469 Okay, so I am making some progress. CAT is wired and working, and RX audio from the radio is getting to the computer and being decoded. I am still not getting any TX tones from the computer into the radio through the DATA jack. The radio keys, but this could be CAT doing that. The computer is putting out the tones, because if I direct the audio to my speakers I hear it just fine. I'm at a loss.
Greg D All Messages By This Member #470 开云体育 Commanding PTT with the CAT interface takes the audio from the Mike input, not the Data jack.? You have to key the rig from the specific port the audio is coming from, or you'll get silence. Greg? KO6TH Max Donoghue wrote: toggle quoted message Show quoted text Okay, so I am making some progress. CAT is wired and working, and RX audio from the radio is getting to the computer and being decoded. I am still not getting any TX tones from the computer into the radio through the DATA jack. The radio keys, but this could be CAT doing that. The computer is putting out the tones, because if I direct the audio to my speakers I hear it just fine. I'm at a loss.
Max Donoghue #471 Hi Greg How do I specially key from the data jack?
Greg D All Messages By This Member #472 开云体育 The TRS Data jack (vs the DIN one) combines the PTT and audio in (for transmitting) on the Tip of that TRS plug.? You need a 2k-ish resistor between the tip and the PTT line, and a DC blocking capacitor (a couple of uf) between the tip and your audio source.? The PTT signal can come from a variety of places.? Assuming you are using a sound card TNC (Direwolf, AGWPE, UZ7HO, et al), most use the serial port "modem lines" (DTR, RTS), with an appropriate buffer circuit.? That can be as simple as a transistor and resistor in an "open collector" circuit configuration.? The PTT is an active-low, so driving the transistor on with the modem line going high will do it, but be sure that the software configuration uses the modem lines in the right manner.? Some are active the wrong way, which kind of makes a mess of things. Actually I should back up and first ask what you are using for the TNC, and what sort of interface you are using between it and the rig.? Is it just a custom cable between the computer and radio, or are you using something like a RigBlaster?? The circuit above is likely already built into the RigBlaster if that's what you are using. Greg? KO6TH Max Donoghue wrote: toggle quoted message Show quoted text Hi Greg How do I specially key from the data jack?
Max Donoghue #473 Hi Greg, Simple homebrew keying circuit using an optocoupler. One for the PTT and one for CW. I think I've got the CW side solved (was using a mono plug on the 850, but have to use a stereo plug on the 847). I'll work on the PTT circuit tomorrow. Max
Max Donoghue #474 Got everything fixed up yesterday even made a few 6m contacts on the A3S! Now I need to build a 6m beam. Up first is the volume control mod, not the resistor one. That is annoying not being able to turn the volume down to a comfortable level :(
Spence G5STO All Messages By This Member #475 开云体育 External speaker with a potentiometer inline. I’m actually using an Icom speaker (wash ya mouth out) with a custom vero board. ? ?Considerably better sound than the internal speaker. ? De Spence M0STO? Sent while portable! please excuse typos. toggle quoted message Show quoted text On 10 Jul 2022, at 13:14, Max Donoghue <ve3tmt@...> wrote: Got everything fixed up yesterday even made a few 6m contacts on the A3S! Now I need to build a 6m beam. Up first is the volume control mod, not the resistor one. That is annoying not being able to turn the volume down to a comfortable level :(
Max Donoghue #476 I'm using the Kenwood SP-31.? Good idea with the potentiometer. Will give it a try. toggle quoted message Show quoted text On Sun, Jul 10, 2022, 8:38 AM Spence M0STO via <unavailable.equal=[email protected]> wrote: External speaker with a potentiometer inline. I’m actually using an Icom speaker (wash ya mouth out) with a custom vero board. ? ?Considerably better sound than the internal speaker. ? De Spence M0STO? Sent while portable! please excuse typos. On 10 Jul 2022, at 13:14, Max Donoghue <ve3tmt@...> wrote: Got everything fixed up yesterday even made a few 6m contacts on the A3S! Now I need to build a 6m beam. Up first is the volume control mod, not the resistor one. That is annoying not being able to turn the volume down to a comfortable level :(
Andy Bosworth All Messages By This Member #479 Any external speaker should sound better than the internal speaker. In the old days radios were designed with large speakers pointing forwards towards the users earholes. Nowadays they fit tiny speakers anywhere they can. Or is that just a ploy to get owners to buy? overpriced extension speakers. I use a bookshelf speaker, that is around the same size as 847, it was one of two off Ebay at ?25 the pair.? If I was really worried, I would put a Yaesu sticker on it. toggle quoted message Show quoted text On Sun, 10 Jul 2022 at 14:09, Max Donoghue <ve3tmt@...> wrote: I'm using the Kenwood SP-31.? Good idea with the potentiometer. Will give it a try. On Sun, Jul 10, 2022, 8:38 AM Spence M0STO via <unavailable.equal=[email protected]> wrote: External speaker with a potentiometer inline. I’m actually using an Icom speaker (wash ya mouth out) with a custom vero board. ? ?Considerably better sound than the internal speaker. ? De Spence M0STO? Sent while portable! please excuse typos. On 10 Jul 2022, at 13:14, Max Donoghue <ve3tmt@...> wrote: Got everything fixed up yesterday even made a few 6m contacts on the A3S! Now I need to build a 6m beam. Up first is the volume control mod, not the resistor one. That is annoying not being able to turn the volume down to a comfortable level :(

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