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Correct; the 847 doesn't do VOX, but I believe the SignaLink does.?
That was the only way it made sense to me that things were working.?
The SignaLink was keying the rig via its own internal VOX, and the
CAT, while also keying the rig, was overruled by the rig seeing PTT
on the Data port so getting the audio signal from there.?
If setting WSJT-x to VOX still has the 847 going into transmit, it
must be due to the SignaLink providing that function.? From what you
write, making only the change to the WSJT-x software for VOX did
nothing?? THAT I can't explain.? If the only PTT being recognized by
the 847 was coming from CAT, and the audio only coming in from the
Data port, that shouldn't have worked unless the signal was really
really loud.? What was it set to?
Greg? KO6TH
John P. wrote:
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Tim,
I took up your request to test the keying my radio using a
SignaLink and VOX.? My Audio is fed from the SignaLink to the
radio using the SLCAB847 cable, plugged into the Data In/Out jack
located under the HF SO239 connector.
I wasn't able to complete the test VOX keying with SignaLink audio
because the FT-847 does it does not support VOX.? I searched the
manual and the internet before coming to that conclusion.? Using
WSJT-X I tested the remaining two PTT options, DTR & RTS, and
my radio would not transmit with either of those selected.? The
only way that I can make my radio transmit is by using CAT PTT.
I also tested a couple of older AFSK programs with my SignaLink
and CAT control.? Testing with FLDigi, my radio would transmit as
long as I select FLRig as the rig control option, and FLRig is
configured for the FT-847 with the COM port & baud rate set.?
I also tested DigiPan and the radio will transmit if I select the
COM port that is connected to the radio.? It's interesting to note
that DigiPan does not have a setting for the baud rate, but it is
set in my computer to match the rate that my FT-847 is configured
for.
73,
John
AB0VX
|
Tim,
I took up your request to test the keying my radio using a SignaLink and VOX.? My Audio is fed from the SignaLink to the radio using the SLCAB847 cable, plugged into the Data In/Out jack located under the HF SO239 connector.
I wasn't able to complete the test VOX keying with SignaLink audio because the FT-847 does it does not support VOX.? I searched the manual and the internet before coming to that conclusion.? Using WSJT-X I tested the remaining two PTT options, DTR & RTS, and my radio would not transmit with either of those selected.? The only way that I can make my radio transmit is by using CAT PTT.
I also tested a couple of older AFSK programs with my SignaLink and CAT control.? Testing with FLDigi, my radio would transmit as long as I select FLRig as the rig control option, and FLRig is configured for the FT-847 with the COM port & baud rate set.? I also tested DigiPan and the radio will transmit if I select the COM port that is connected to the radio.? It's interesting to note that DigiPan does not have a setting for the baud rate, but it is set in my computer to match the rate that my FT-847 is configured for.
73,
John
AB0VX
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No worries Spence. Maybe this will help the next new owner of 847.
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Sorry about that as I totally got confused. I think the link was generally for anyone? Just provides a simple switching solution.
? I think I need to go back and re’read this thread from the beginning and see what the original issue was. I apologise for any confusion caused.
De Spence G5STO
Sent while portable! please excuse typos.
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On 25 Mar 2024, at 20:51, Tim Davis KJ4DHF via groups.io <kj4dhf@...> wrote:
?Spence,
Not sure if your last post was for me or Greg.
?I can get it to work no problems using the DB9 pins for PTT. I was hoping not to have to build a serial cable for rig and splice into the cable. I was hoping I could get it to work just using the audio line to activate PTT on the Easy Digi board to pass the audio back into radio.
?I just bought me a 15ft DB9 serial cable cut in the middle made the connection for PTT and spliced the 3 wires for CAT back together inside the project box for Null modem pinout to the radio.
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Spence,
Not sure if your last post was for me or Greg.
?I can get it to work no problems using the DB9 pins for PTT. I was hoping not to have to build a serial cable for rig and splice into the cable. I was hoping I could get it to work just using the audio line to activate PTT on the Easy Digi board to pass the audio back into radio.
?I just bought me a 15ft DB9 serial cable cut in the middle made the connection for PTT and spliced the 3 wires for CAT back together inside the project box for Null modem pinout to the radio.
|
Hi Greg, check out John M0UKD’s website. At the bottom of this page just above the comments section is a design that should help.
| |
De Spence G5STO
Sent while portable! please excuse typos.
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On 25 Mar 2024, at 20:16, Tim Davis KJ4DHF via groups.io <kj4dhf@...> wrote:
?Greg,
Thanks for your input. Yes that is the challenge for me. Being able to use the PTT function on the Data IN/OUT jack at the rig to pass the audio from pc to rig without damaging the radio circuitry. I am not sure of how to wire the transistor into the tip audio line and where to tie it to the board an work properly and not damage the radio. The cost of the Digi Easy is dirt cheap 847 $$$.
Greg,
Thanks for your input. Yes that is the challenge for me. Being able to use the PTT function on the Data IN/OUT jack at the rig to pass the audio from pc to rig without damaging the radio circuitry. I am not sure of how to wire the transistor into the tip audio line and where to tie it to the board an work properly and not damage the radio. The cost of the Digi Easy is dirt cheap 847 $$$.
|
Using one of the modem lines (RTS or DTR) is likely the "universal" control point for PTT, with a single transistor acting open-collector for pulling the PTT line low.? I would add a series resistor (a few k-ohms) to the base as a current limit.? I believe Craig KM6LYW's DigiPi uses a FET instead of a bipolar transistor, with the same effect.
That said, the challenge for the 847 isn't so much the source of the PTT signal, it's the adapting of that one source of PTT and audio to the two "data" ports (one for HF SSB, one for VHF/UHF FM), and not using the broken CAT interface for anything other than setting the operating frequency.
Greg KO6TH
Spence G5STO via groups.io wrote:
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Is there no way to take the RTS pin on the 9 pin connector and run it into a transistor at the base and use it to switch the PTT line at 0vdc.
This way you can still use the RX, TX and gnd pins for CAT control and use RTS high (12v I believe) as breakout. You don’t need any voltage on the collector and the emitter to a common ground with the base and appropriate resistor to the RTS. The PTT can sit in collector and be grounded via the resistor. Most software should allow the RTS keying but I will be honest I’ve not been following this thread that closely.
Please correct me if this won’t work for you?
De Spence G5STO
Ps: I use this method to ground my relays via 0vdc line into an optoisolator. The optoisolator is powered and the transistor brings the internal IR led to ground to switch on.
Sent while portable! please excuse typos.
On 24 Mar 2024, at 23:00, Greg D <ko6th.greg@...> wrote:
?Windows-only application, so not something I can use. Perhaps others...
Greg KO6TH
Spence G5STO via groups.io wrote:
Try a program called VSPE or Virtual Serial Port Emulator and choose splitter. Then select COM20 as your virtual port and make sure you set a common baud rate. Then set the same baud rate for CAT and control in the other 2 options whilst ensuring the baud rate is correct.
De Spence G5STO
VSPE is free and give prompts after 30 days to register but it doesn’t stop functioning just doesn’t allow you to save the settings until you register.
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Spence,
Right now I am on Windows as have not found a logbook rig interface program I like using yet on Linux. Tried a couple but cannot get use to the layouts. I been using HRD 20+ years and real use to it and it's layout.
?I am not sure on the transformers specs except that they are 600:600. I found these interfaces online about 15 years ago and grabbed some up for my FT100,FT990,FT1000D. They work great on them radio's. I had a couple in spare parts box and when I acquired the 847 I said what the heck let me see if I can get it to work on the 847.
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Ooohhh I like that a lot. It’s similar to my first data interface except I used a USB sound card too and patched the transformed into it direct.
I take it you are using a 600:600 transformer and 1k:8ohm?
Also it looks like a 4N25 for the PTT line. If you look inside most sound card interfaces there is a similar design and $10 worth of parts but after a few LED’s it’s marketed for $100 which annoys me somewhat.?
? I’m not sure if your using a MAC or Linux but there is still the possibility of using Wine for VSPE but I’m really not a MAC man just Linux and Windows. I work a lot of satellite and trying to get the various programs tied into KISS 8100 port and Doppler shift and PTT together can only be achieved with VSPE. GreenCube springs to mind.
? I think I posted an image of my breakout board for just this reason but I will post it again. I needed 9600baud from the SCU17 but the SCU17 was never designed for the FT847 so had to design a breakout board to tap into the 9600baud data.
? Using two of these little boards I designed means I can simply move the 9600baud data to the 1200baud input to the sound card where before it wasn’t possible.
? I would suggest you could make a 9 pin version of this on vero or breadboard just for testing.
? Great thread this and it’s exploring the same issues I had many moons ago.?
I do have an original SignaLink SL1 without sound card and it does use either VOX or PTT depending on how you configure it. That’s where the extra $90 goes when you buy a commercial item as I’ve experimented with VOX and it’s fraught with small issues, especially with RF getting into the works.
De Spence G5STO
Sent while portable! please excuse typos.
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On 25 Mar 2024, at 11:49, Tim Davis KJ4DHF via groups.io <kj4dhf@...> wrote:
?Hello Spence, That is basically what I had to do to use this interface. I had to have access to to the RYS pin on the pc side of the CAT cable. So I just I need to splice into the serial cable and tap the RTS pin from the PC to the opticoupler and ground. Then I made the cross over ( null modem) to the radio inside the project box going to the serial port on radio. Then just added the audio lines to the pc and radio. 
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Hello Spence, That is basically what I had to do to use this interface. I had to have access to to the RYS pin on the pc side of the CAT cable. So I just I need to splice into the serial cable and tap the RTS pin from the PC to the opticoupler and ground. Then I made the cross over ( null modem) to the radio inside the project box going to the serial port on radio. Then just added the audio lines to the pc and radio.
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Is there no way to take the RTS pin on the 9 pin connector and run it into a transistor at the base and use it to switch the PTT line at 0vdc.
This way you can still use the RX, TX and gnd pins for CAT control and use RTS high (12v I believe) as breakout. You don’t need any voltage on the collector and the emitter to a common ground with the base and appropriate resistor to the RTS. The PTT can sit in collector and be grounded via the resistor. Most software should allow the RTS keying but I will be honest I’ve not been following this thread that closely.
Please correct me if this won’t work for you?
De Spence G5STO
Ps: I use this method to ground my relays via 0vdc line into an optoisolator. The optoisolator is powered and the transistor brings the internal IR led to ground to switch on.
Sent while portable! please excuse typos.
toggle quoted message
Show quoted text
On 24 Mar 2024, at 23:00, Greg D <ko6th.greg@...> wrote:
?Windows-only application, so not something I can use. Perhaps others...
Greg KO6TH
Spence G5STO via groups.io wrote:
Try a program called VSPE or Virtual Serial Port Emulator and choose splitter. Then select COM20 as your virtual port and make sure you set a common baud rate. Then set the same baud rate for CAT and control in the other 2 options whilst ensuring the baud rate is correct.
De Spence G5STO
VSPE is free and give prompts after 30 days to register but it doesn’t stop functioning just doesn’t allow you to save the settings until you register.
|
Windows-only application, so not something I can use.? Perhaps others...
Greg? KO6TH
Spence G5STO via groups.io wrote:
toggle quoted message
Show quoted text
Try a program called VSPE or Virtual Serial Port Emulator and choose splitter. Then select COM20 as your virtual port and make sure you set a common baud rate. Then set the same baud rate for CAT and control in the other 2 options whilst ensuring the baud rate is correct.
De Spence G5STO
VSPE is free and give prompts after 30 days to register but it doesn’t stop functioning just doesn’t allow you to save the settings until you register.
|
Try a program called VSPE or Virtual Serial Port Emulator and choose splitter. Then select COM20 as your virtual port and make sure you set a common baud rate. Then set the same baud rate for CAT and control in the other 2 options whilst ensuring the baud rate is correct.
De Spence G5STO
VSPE is free and give prompts after 30 days to register but it doesn’t stop functioning just doesn’t allow you to save the settings until you register. Sent while portable! please excuse typos.
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On 24 Mar 2024, at 22:50, Greg D <ko6th.greg@...> wrote:
?
Splitting out the serial port's signals for CAT and PTT is great if
the software supports it - both CAT and PTT on the same adapter -
without a conflict.? Sounds like it does.? Thanks for mentioning
that.
I don't have a SignaLink box, instead running my digital modes from
Linux on a Raspberry Pi and a custom set of cables.? Initially I
used a GPIO pin to drive PTT, but ran into software that wasn't
tuned for the Pi platform (didn't "do" GPIO), so had to add another
serial adapter on USB.? Matched that with a multi-ported audio cable
to both DIN and TRS ports, along with switches for polarity (active
high vs low), etc.? It's my Winchester Mystery Adapter, one that
kind of grew on its own with no end in sight.? Probably something I
should rework for whatever PTT commonality there exists among ALL
the software apps (WSJTX, Fldigi, Direwolf, QSSTV, etc...).?
Modem-based PTT is likely the one.? If I can break that out from the
CAT port, that would simplify things even further.? I believe that
Craig KM6LYW (creator of the DigiPi) uses a single method for all
software in his system.
Greg? KO6TH
Tim Davis KJ4DHF via groups.io wrote:
Hello Greg,
I am curious with the Signal Link keying the radio via VOX
generated PTT also.
As the SL has nothing to do with the CAT then the AFSK software
should work via VOX setting and not comm port PTT. With this black
sheep radio from Yaesu there is no telling.
Maybe John "AB0VX"can run a couple test to see with his 847 and
Signal Link.
I will be ordering me a SL and module for my 847 in next few
day's.
I tried using the Easy Digi by KF5INZ as I used them on other rigs
and had a spare here. I could never get it to pass audio trying to
trigger PTT from the current on the TX audio line from pc to 847.
It would work if I used a second serial port on pc to key PTT on
the Easy Digi. I just did not want to have to tie up 2 com ports
on pc to 1 for CAT and 1 for PTT. I could make it work if I built
my own Null modem cable from PC to 847 and pull the wires for
DTR/RTS from same com port to interface board.
|
Splitting out the serial port's signals for CAT and PTT is great if
the software supports it - both CAT and PTT on the same adapter -
without a conflict.? Sounds like it does.? Thanks for mentioning
that.
I don't have a SignaLink box, instead running my digital modes from
Linux on a Raspberry Pi and a custom set of cables.? Initially I
used a GPIO pin to drive PTT, but ran into software that wasn't
tuned for the Pi platform (didn't "do" GPIO), so had to add another
serial adapter on USB.? Matched that with a multi-ported audio cable
to both DIN and TRS ports, along with switches for polarity (active
high vs low), etc.? It's my Winchester Mystery Adapter, one that
kind of grew on its own with no end in sight.? Probably something I
should rework for whatever PTT commonality there exists among ALL
the software apps (WSJTX, Fldigi, Direwolf, QSSTV, etc...).?
Modem-based PTT is likely the one.? If I can break that out from the
CAT port, that would simplify things even further.? I believe that
Craig KM6LYW (creator of the DigiPi) uses a single method for all
software in his system.
Greg? KO6TH
Tim Davis KJ4DHF via groups.io wrote:
toggle quoted message
Show quoted text
Hello Greg,
I am curious with the Signal Link keying the radio via VOX
generated PTT also.
As the SL has nothing to do with the CAT then the AFSK software
should work via VOX setting and not comm port PTT. With this black
sheep radio from Yaesu there is no telling.
Maybe John "AB0VX"can run a couple test to see with his 847 and
Signal Link.
I will be ordering me a SL and module for my 847 in next few
day's.
I tried using the Easy Digi by KF5INZ as I used them on other rigs
and had a spare here. I could never get it to pass audio trying to
trigger PTT from the current on the TX audio line from pc to 847.
It would work if I used a second serial port on pc to key PTT on
the Easy Digi. I just did not want to have to tie up 2 com ports
on pc to 1 for CAT and 1 for PTT. I could make it work if I built
my own Null modem cable from PC to 847 and pull the wires for
DTR/RTS from same com port to interface board.
|
Hello Greg,
I am curious with the Signal Link keying the radio via VOX generated PTT also.
As the SL has nothing to do with the CAT then the AFSK software should work via VOX setting and not comm port PTT. With this black sheep radio from Yaesu there is no telling.
Maybe John "AB0VX"can run a couple test to see with his 847 and Signal Link.
I will be ordering me a SL and module for my 847 in next few day's.
I tried using the Easy Digi by KF5INZ as I used them on other rigs and had a spare here. I could never get it to pass audio trying to trigger PTT from the current on the TX audio line from pc to 847. It would work if I used a second serial port on pc to key PTT on the Easy Digi. I just did not want to have to tie up 2 com ports on pc to 1 for CAT and 1 for PTT. I could make it work if I built my own Null modem cable from PC to 847 and pull the wires for DTR/RTS from same com port to interface board.
|
I think you must be right, that the SignaLink's internal
VOX-generated PTT is what is triggering the 847 via the Data
connector.? Changing the PTT Method to VOX in WSJT-X would confirm
this.? Apparently, when both Data PTT and CAT PTT are present, the
Data port wins.?
That said, I was able to *barely* use the Data port's audio with PTT
coming from CAT.? The muting of the Data port's audio isn't perfect,
so if you feed a strong (speaker-level) audio into it, a little
sneaks through.? I doubt this was what they had in mind.? No idea
how close I came to damaging the rig by doing so, but it was worth a
multiplier one Field Day some years ago...? :)
Greg? KO6TH
Tim Davis KJ4DHF via groups.io wrote:
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Hi John,
Thanks for the info.
Using your SignalLink with the SLCAB847 is 1 way I was looking at
going. With the SL you also need the jumper module SLMODHT
correct?
And from what I understand is the jumper module is what controls
the CAT on the DATA In/Out port on rig. So if that is case should
not need CAT enabled in either WSJT-X or DMR780 for rtty/psk. Or
am I just overthinking this to much?
?Now that really sparks my interest as SL says the SLCAB847 will
only work on HF and has to use front mic for UHF/VHF.
I also sent you an email from qrz email address.
Tim
KJ4DHF
|
Hi John,
Thanks for the info.
Using your SignalLink with the SLCAB847 is 1 way I was looking at going. With the SL you also need the jumper module SLMODHT correct?
And from what I understand is the jumper module is what controls the CAT on the DATA In/Out port on rig. So if that is case should not need CAT enabled in either WSJT-X or DMR780 for rtty/psk. Or am I just overthinking this to much?
?Now that really sparks my interest as SL says the SLCAB847 will only work on HF and has to use front mic for UHF/VHF.
I also sent you an email from qrz email address.
Tim
KJ4DHF
|
Greetings,
My FT-847 is connected to a SignaLink USB via a SignaLink?SLCAB847 cable plugged into the Data IN/Out jack on the rear of the radio.? I run WSJT-X with CAT control for the PTT and frequency control.? On HF and 6m I?regularly operate using?FT-8, FT-4, and WSPR and it works good for me.? On 2m and 70cm I've run WSPR with the same hardware and it works just as well as it does on HF.? This morning, I tested it on both 2m and 70cm using FT-8 and the CAT control changes frequency's and controls the radio's PTT as expected.
I've also used the same hardware configuration with JS8Call, which is based on WSJT-X.? It works as expected with CAT control for frequency selection and PTT.? I tested JS8Call on 2m this morning and the radio transmitted using CAT PTT.
Attached my WSJT-X configuration screen for the above hardware configuration.? I happen to use 9600 baud instead of 4800 baud which is the default.? I've used 4800 baud in the past and it works just fine.? Keep in mind that that some early FT-847's may only support unidirectional data on the CAT port.
73,
John
AB0VX
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I've used the Digirig on both the DATA and 6 pin DIN ports on the FT-847.? It worked very well in both cases.?
|
Spence G5STO
Stu Olson