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Transverter

Clinton VE7KNL All Messages By This Member #630 Has anyone got their X5105 working with a transverter?? Mine keys my 28/222 transverter from transverters-store.com as soon as I plug the ptt in.? I have the transverter ptt connected to the ptt on the ACC plug of the X5105.
DougVL All Messages By This Member #631 You may need the CE-19 expansion interface.? It has an 'isolating' stage in it that might also be an inverter (inverting the logic level).? Unfortunately, details of the CE-19 seem to be scarce. -- Doug, K8RFT
Clinton Peebles #632 开云体育 Thanks Doug.? I have a CD-19 and have never used it.? I'll give it a try and see if that works. Clinton, VE7KNL On 2021-09-12 2:19 p.m., DougVL wrote: toggle quoted message Show quoted text You may need the CE-19 expansion interface.? It has an 'isolating' stage in it that might also be an inverter (inverting the logic level).? Unfortunately, details of the CE-19 seem to be scarce. -- Doug, K8RFT
Clinton Peebles #633 开云体育 That solved it. I'll have to see what's involved in coming up with something smaller just for ptt. I don't want to have to pack the CE-19 and extra cabling around. Can't be much to it. --- Clinton, VE7KNL On 2021-09-12 2:19 p.m., DougVL wrote: toggle quoted message Show quoted text You may need the CE-19 expansion interface.? It has an 'isolating' stage in it that might also be an inverter (inverting the logic level).? Unfortunately, details of the CE-19 seem to be scarce. -- Doug, K8RFT
DougVL All Messages By This Member #634 Maybe just an optoisolator. Try? checking the PTT signal level with and without the CE19?? See if it needs an inverter. -- Doug, K8RFT
Clinton Peebles #635 开云体育 There really isn't much to this thing. 2 smt transistors. 6 resistors, at least 1 for the pwr led, 2 dip switches and a relay. I expected to see an optoisolator but don't. The ptt line goes to a smt transistor, can't read the numbers, then makes its way to a HFD4/3 relay.? It looks like it just picks up the relay and the relay contacts ground the ptt. Maybe a resistor in the circuit too to drop the voltage to 3v for the coil, but I don't have time to keep straining my eyes this afternoon. On 2021-09-12 3:49 p.m., DougVL wrote: Maybe just an optoisolator. Try? checking the PTT signal level with and without the CE19?? See if it needs an inverter. -- Doug, K8RFT -- Clinton, VE7KNL
DougVL All Messages By This Member #637 OK, let's put it this way: What is the voltage on the 8 pin ACC jack PTT terminal when the radio is in receive mode? What is the voltage on the 8 pin ACC jack PTT terminal when the radio is in Transmit mode? What is the voltage on the CE19 PTT terminal when the radio is in receive mode? What is the voltage on the CE19 PTT terminal when the radio is in Transmit mode? Also, I meant that maybe what you need is an optoisolator to use instead of the CE-19. The CE-19 is pretty small, though.? You could use double-sided tape and stick it to the back of the radio. -- Doug, K8RFT
Clinton Peebles #638 开云体育 4 vdc in receive, 0 vdc in transmit on the radio ACC jack. The CE-19 has 0 V on both receive and transmit, leading me to believe it's just a relay contact. I dug out an optoisolator from the junk box and it's plugged into a breadboard now.? I want to come up with something that is built into the cable. It's not the size of the CE-19, it's just that it's one more part and more cabling to mess with. I like things small, compact and all internal if possible. I'm thinking optoisolator, and/or whatever else is needed, in shrink tube on the cable. I'm packing the radio up and heading out on the quad this morning so doubt much will happen till tonight or tomorrow.? btw, my IC-706 reads 4.5vdc in receive and 0vdc on transmit. It works fine with the transverter.? The one difference is on tx, the 706 reads 4.6 ohms, where the X5105 reads 120 ohms across the acc ptt.? I don't see how that can put the transverter into transmit as soon as it's plugged in, but whatever. I'll come up with a work around. On 2021-09-13 3:58 a.m., DougVL wrote: OK, let's put it this way: What is the voltage on the 8 pin ACC jack PTT terminal when the radio is in receive mode? What is the voltage on the 8 pin ACC jack PTT terminal when the radio is in Transmit mode? What is the voltage on the CE19 PTT terminal when the radio is in receive mode? What is the voltage on the CE19 PTT terminal when the radio is in Transmit mode? Also, I meant that maybe what you need is an optoisolator to use instead of the CE-19. The CE-19 is pretty small, though.? You could use double-sided tape and stick it to the back of the radio. -- Doug, K8RFT -- Clinton, VE7KNL
Dan Quigg All Messages By This Member #639 Use a manual PTT switch on the transverter? Does the PTT connection on the ACC socket actually 'send' (for lack of a better word) the PTT signal to an external device?? Or does that connection allow an external device to put the X5105 into transmit mode? Just 2 WAGs - good luck.
Clinton Peebles #640 开云体育 Last resort would be manual PTT.? I don't think it will come to that. It does both, keys the radio and will key an external device.. via the CE-19. I did find this in the files area of this group. /g/X5105-Users/photo/0/74360.165.0?p=Created,,,20,2,60,0 That looks like the PTT circuit in the CE-19.? Thanks to whoever did that. Saves my eyes. On 2021-09-13 6:55 a.m., Dan Quigg via groups.io wrote: Use a manual PTT switch on the transverter? Does the PTT connection on the ACC socket actually 'send' (for lack of a better word) the PTT signal to an external device?? Or does that connection allow an external device to put the X5105 into transmit mode? Just 2 WAGs - good luck. -- Clinton, VE7KNL
DougVL All Messages By This Member #641 There' was/is a discussion thread in Dec. 2020, with 48 message posts, called "External amp keying" The picture was posted in that thread.? The thread was about the same problem. I think that's why Groups.IO has a 'search' function for finding things in the postings. -- Doug, K8RFT
Clinton Peebles #642 开云体育 Thanks Doug.? I thought I did search before posting, but not with the right parameters I guess.? I'll take a look at the posts. On 2021-09-14 4:21 a.m., DougVL wrote: There' was/is a discussion thread in Dec. 2020, with 48 message posts, called "External amp keying" The picture was posted in that thread.? The thread was about the same problem. I think that's why Groups.IO has a 'search' function for finding things in the postings. -- Doug, K8RFT -- Clinton, VE7KNL
DougVL All Messages By This Member #643 On Tue, Sep 14, 2021 at 08:10 AM, Clinton Peebles wrote: with the right parameters That's the "key"! In this case, searching for "PTT" or "CE-19" might have given you some results. I often look for info on portable antennas, but others might have called it "field work" or POTA or or SOTA ore even 'activating grid squares'. ? -- Doug, K8RFT

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