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Re: Couple of questions

Max Donoghue
 

Hi Ian,

Yes I see in the manual now you have to use a blocking capacitor on the TX audio line. That should be easy enough to do.?

Coming from a Kenwood TS-850S, I owned?a couple of FT-990's and a Mark V Field, but it's been a while since I've operated a Yaesu. Great to be able to get back into 6m and 2m SSB as well as the satellites again.


Re: Couple of questions

 

Hi Max

From what I remember? if you ground the?audio out (the?tip) this then enables PTT on the data port.?

If I am wrong?anyone please feel free to correct me

I hope you have great fun with your FT-847

73 de Ian G8ZHC


On Wed, 6 Jul 2022, 16:45 Max Donoghue, <ve3tmt@...> wrote:
Ian, Greg

Thank you for your responses. I don't see anything in the manual that mentions the PTT keying on the DATA IN/OUT jack. Am I missing something?

How do I go about separating the PTT line or would it just be easier to use the front mic jack?

Max


Re: Couple of questions

 

Hi Gerald,
The CPU on the AF-CNTL board must be replaced.? Some service-centers got them from YAESU and did replacement on warranty back then.
I got my CPU from UK and as I recall the cost was about 30$. The replacement must be done by a professional but is not difficult.
Check with your local Yaesu if they can give advise. Othervise you could ask my supplier.
Get in touch!
Nils SM7DVO


Re: Couple of questions

 

¿ªÔÆÌåÓý

Good morning guys, I got may radio when it was first introduced and never found out about the update to it. Does anyone know who or if the digital upgrade part is still available and is it worth it? I have done packet with this radio in the past, but gave up on that as it appears to be a dead platform.

Thanks in advance

Gerry Klotz


On Jul 6, 2022, at 10:30 AM, Greg D <ko6th.greg@...> wrote:

? Congrats on the new rig!? Great radio, but it has it's quirks.? You've run into my #1 peeve.

There are two jacks on the back for interfacing with digital stuff.? The DIN port is for VHF/UHF packet, and the TRS is for the HF modes.? So if you have a single computer doing both with a sound card, it will take some careful wiring with appropriate use of DC blocking capacitors.? The issue is that the PTT functions for the two are separate, and the radio is trying to be smart and only takes audio from whichever port is being keyed.? And just to complicate things further, the PTT on DIN is a single purpose pin, while PTT is combined with the mike audio on the TRS.? To be fair, when the radio was created, packet and HF modes were typically built into separate boxes, and so I presume they were trying to make things easier for us.? In the end, it turned out rather different.

Final warning, the CAT interface works well if you have the newer version of the radio (do a search for the S/N boundary), but for some reason I can't fathom, keying the rig with CAT takes audio from the front mike connector.? That's the last place I'd expect audio to be coming from if I key the radio from a computer.? You really need to use the various PTT lines instead, as using the mike input in order to use CAT has its own issues with setting the audio level.

Sorry, can't help on the Service menu.? Good luck!

Greg? KO6TH


Max Donoghue wrote:
Hello to the group,

Just took delivery of an 847. Great radio.

I'm just in the process of getting everything hooked up, CAT, digital modes etc. I plugged my signal lines into the DATA in/out jack and for some reason the radio goes into TX mode. Have to look into that. Question # 1: Can I use the PACKET jack for digital modes such as FT8 or AFSK RTTY? Or is it strictly for packet operation?

I'm trying to get into the service menu to align the shift control as it sits at about 1 o'clock when both USB and LSB have the same tone. I've tried the UP/DWN/FAST on the mic while turning on the radio but the regular display just keeps coming up. The up and down buttons are working fine on the mic, but when I press the fast button, the FAST icon does not appear on the screen. Possibly a bad wire inside the mic?? Should the FAST icon come on when activating it from the mic?

Everything else appears to be fine, showing full power on HF, 6 and 2m. My 440 antenna has a PL259 on cable, working on getting an adapter!

Any pointers appreciated.

Thank you,
Max VE3TMT


Re: Couple of questions

Max Donoghue
 

Thanks Tom,

Just saw that!

Max


Re: Couple of questions

 

One page 16 of my manual in the section re "AFSK TNC Connections".? Check the diagram showing a 10uf cap and 2K ohm resistor connected to the AFSK TNC.

Easy to build your own if you can obtain the components.?

73,

Tom K6EU





On Wed, Jul 6, 2022 at 8:45 AM Max Donoghue <ve3tmt@...> wrote:
Ian, Greg

Thank you for your responses. I don't see anything in the manual that mentions the PTT keying on the DATA IN/OUT jack. Am I missing something?

How do I go about separating the PTT line or would it just be easier to use the front mic jack?

Max


Re: Couple of questions

Max Donoghue
 

Ian, Greg

Thank you for your responses. I don't see anything in the manual that mentions the PTT keying on the DATA IN/OUT jack. Am I missing something?

How do I go about separating the PTT line or would it just be easier to use the front mic jack?

Max


Re: Couple of questions

 

¿ªÔÆÌåÓý

Congrats on the new rig!? Great radio, but it has it's quirks.? You've run into my #1 peeve.

There are two jacks on the back for interfacing with digital stuff.? The DIN port is for VHF/UHF packet, and the TRS is for the HF modes.? So if you have a single computer doing both with a sound card, it will take some careful wiring with appropriate use of DC blocking capacitors.? The issue is that the PTT functions for the two are separate, and the radio is trying to be smart and only takes audio from whichever port is being keyed.? And just to complicate things further, the PTT on DIN is a single purpose pin, while PTT is combined with the mike audio on the TRS.? To be fair, when the radio was created, packet and HF modes were typically built into separate boxes, and so I presume they were trying to make things easier for us.? In the end, it turned out rather different.

Final warning, the CAT interface works well if you have the newer version of the radio (do a search for the S/N boundary), but for some reason I can't fathom, keying the rig with CAT takes audio from the front mike connector.? That's the last place I'd expect audio to be coming from if I key the radio from a computer.? You really need to use the various PTT lines instead, as using the mike input in order to use CAT has its own issues with setting the audio level.

Sorry, can't help on the Service menu.? Good luck!

Greg? KO6TH


Max Donoghue wrote:

Hello to the group,

Just took delivery of an 847. Great radio.

I'm just in the process of getting everything hooked up, CAT, digital modes etc. I plugged my signal lines into the DATA in/out jack and for some reason the radio goes into TX mode. Have to look into that. Question # 1: Can I use the PACKET jack for digital modes such as FT8 or AFSK RTTY? Or is it strictly for packet operation?

I'm trying to get into the service menu to align the shift control as it sits at about 1 o'clock when both USB and LSB have the same tone. I've tried the UP/DWN/FAST on the mic while turning on the radio but the regular display just keeps coming up. The up and down buttons are working fine on the mic, but when I press the fast button, the FAST icon does not appear on the screen. Possibly a bad wire inside the mic?? Should the FAST icon come on when activating it from the mic?

Everything else appears to be fine, showing full power on HF, 6 and 2m. My 440 antenna has a PL259 on cable, working on getting an adapter!

Any pointers appreciated.

Thank you,
Max VE3TMT


Re: Couple of questions

 

Hi Max?

Regarding using data on the FT-847 its?a little bit complicated compared to more modern transceivers. As a rule of thumb you use the Packet port for FM based operation and the Data In/Out for AM/SSB

For the past 20 years I have used this home built interface based on the following which I think credit to VA3DH who came up with the design originally?for W95SSTV?software, on several FT-847's which gives all mode data :

image.png


In improving the PTT switching and?making electrically isolated totally radio from?computer you could adapt and use a 4N25 optocoupler in?place of the switching transistor.?

?
I hope this is of use ?



Regards
Ian G8ZHC




On Wed, 6 Jul 2022 at 14:37, Max Donoghue <ve3tmt@...> wrote:
Hello to the group,

Just took delivery of an 847. Great radio.

I'm just in the process of getting everything hooked up, CAT, digital modes etc. I plugged my signal lines into the DATA in/out jack and for some reason the radio goes into TX mode. Have to look into that. Question # 1: Can I use the PACKET jack for digital modes such as FT8 or AFSK RTTY? Or is it strictly for packet operation?

I'm trying to get into the service menu to align the shift control as it sits at about 1 o'clock when both USB and LSB have the same tone. I've tried the UP/DWN/FAST on the mic while turning on the radio but the regular display just keeps coming up. The up and down buttons are working fine on the mic, but when I press the fast button, the FAST icon does not appear on the screen. Possibly a bad wire inside the mic?? Should the FAST icon come on when activating it from the mic?

Everything else appears to be fine, showing full power on HF, 6 and 2m. My 440 antenna has a PL259 on cable, working on getting an adapter!

Any pointers appreciated.

Thank you,
Max VE3TMT


Couple of questions

Max Donoghue
 

Hello to the group,

Just took delivery of an 847. Great radio.

I'm just in the process of getting everything hooked up, CAT, digital modes etc. I plugged my signal lines into the DATA in/out jack and for some reason the radio goes into TX mode. Have to look into that. Question # 1: Can I use the PACKET jack for digital modes such as FT8 or AFSK RTTY? Or is it strictly for packet operation?

I'm trying to get into the service menu to align the shift control as it sits at about 1 o'clock when both USB and LSB have the same tone. I've tried the UP/DWN/FAST on the mic while turning on the radio but the regular display just keeps coming up. The up and down buttons are working fine on the mic, but when I press the fast button, the FAST icon does not appear on the screen. Possibly a bad wire inside the mic?? Should the FAST icon come on when activating it from the mic?

Everything else appears to be fine, showing full power on HF, 6 and 2m. My 440 antenna has a PL259 on cable, working on getting an adapter!

Any pointers appreciated.

Thank you,
Max VE3TMT


Re: My FT-847 won't transmit on 80m

 

Ha!? Thanks, didn't see that before.

Greg? KO6TH


gw3fsp via groups.io wrote:

Hi Greg, check the Group Files section, there is a folder there - FT847 Mods - in there you will find a Yeasu datasheet on frequency mods, it extends the range of the set. i uploaded it quite a while ago to the original Yahoo Group.
Leighton. GW3FSP.




Re: My FT-847 won't transmit on 80m

 

Thanks Vic. Something in my head says I should have thought of that myself.?
Dennis VE3XC


Re: My FT-847 won't transmit on 80m

 

Hi Greg, check the Group Files section, there is a folder there - FT847 Mods - in there you will find a Yeasu datasheet on frequency mods, it extends the range of the set. i uploaded it quite a while ago to the original Yahoo Group.
Leighton. GW3FSP.


Re: My FT-847 won't transmit on 80m

 

¿ªÔÆÌåÓý

Out of band mod?? I wasn't aware that there were any such mods for the radio (e.g. to get it to Tx on the WARC bands)...

Greg? KO6TH


Dave K?EKL wrote:

Thanks for the replies. I have not yet fully unpacked the truck from Field Day. When I do bring the radio back into the shack I'll try a full reset, try transmitting on freqs across the 80m band and then perhaps try the out of band mod.


Re: My FT-847 won't transmit on 80m

Dave K?EKL
 

Thanks for the replies. I have not yet fully unpacked the truck from Field Day. When I do bring the radio back into the shack I'll try a full reset, try transmitting on freqs across the 80m band and then perhaps try the out of band mod.


Re: My FT-847 won't transmit on 80m

 

True

Get


Re: My FT-847 won't transmit on 80m

 

You can not I meant to say. ?
It is expecting to be full duplex and can¡¯t if tx and rx is on the same band.?
Vic




On Monday, June 27, 2022, 5:13 PM, vstockma@... <vstockma@...> wrote:

You can use the sub on the same band. You have to use split a/b vfo.?
Satpc32 help file explains what to do for ISS etc.?
Vic?




On Monday, June 27, 2022, 5:03 PM, Dennis Surek via groups.io <dsurek@...> wrote:

Field Day really brings out the problems. I have 2 FT-847's. One belongs to the Club which I cloned to be the same as mine. For the ISS V/v frequencies, both do the same thing. Main vfo shows 145.850, sub vfo shows 144.490. Press the PTT and the sub vfo shows error on both rigs. All the other sat pairs are fine. So this problem in on my list of troubleshooting jobs.? 73 de VE3XC


Re: My FT-847 won't transmit on 80m

 

You can use the sub on the same band. You have to use split a/b vfo.?
Satpc32 help file explains what to do for ISS etc.?
Vic?




On Monday, June 27, 2022, 5:03 PM, Dennis Surek via groups.io <dsurek@...> wrote:

Field Day really brings out the problems. I have 2 FT-847's. One belongs to the Club which I cloned to be the same as mine. For the ISS V/v frequencies, both do the same thing. Main vfo shows 145.850, sub vfo shows 144.490. Press the PTT and the sub vfo shows error on both rigs. All the other sat pairs are fine. So this problem in on my list of troubleshooting jobs.? 73 de VE3XC


Re: My FT-847 won't transmit on 80m

 

Try wide banding it then a reset, failing that? as these radios are rather old, so perform an alignment, this should sort it out.

BR

Andrew

If you can not perform this? then I can

Get


Re: My FT-847 won't transmit on 80m

 

Field Day really brings out the problems. I have 2 FT-847's. One belongs to the Club which I cloned to be the same as mine. For the ISS V/v frequencies, both do the same thing. Main vfo shows 145.850, sub vfo shows 144.490. Press the PTT and the sub vfo shows error on both rigs. All the other sat pairs are fine. So this problem in on my list of troubleshooting jobs.? 73 de VE3XC