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FT847 Data Problem
开云体育Hi All ? Thanks for adding me to the group. I have a problem with my FT847 when trying to run FT8 on VHF. ? I have been using the FT847 to run 2m FT8 with a G4ZLP interface into the Data jack on the rear of the radio with no issues for a few years. Recently, the waterfall would occasionally go blank, but then start working again. A few weeks ago it stopped receiving and hasn’t worked since. I suspected the cable, and have replaced with a new one from G4ZLP today. I still cant get any RX on the waterfall. ? I looked in the settings of WSJT and see that Transmit Audio Source is set to Front/Mic but is greyed out and unable to change to Rear/Data which I would have expected the setting to be. I have not changed this setting, and as above, I have used this Cable/rear panel configuration since going on 2m FT8. ? Is it possible that the rear data jack has gone faulty? Should the Transmit Audio Source be set REAR / DATA and if so how when greyed out? ? I have put a wire into the HF Ant port in an attempt to see if it will RX anything, I am HEARING 20m FT8 but not a jot on the waterfall. I have also run HF ?from my FT5000 on the VHF port of the interface and that decodes so I cant see it being the interface at fault. ? Running WSJT-X v2.7.1 rc7 ? Any help is appreciated ? ? 73 Pete G4RRM ? |
Audio routing on the 847 is fixed, so a grayed-out config button is correct.? Receive audio goes to all the ports (Data, DIN, and the speaker), but transmit audio source is dependent on the mode and where PTT is triggered from.? SSB transmit audio comes from the Data jack; FM transmit audio comes from the DIN connector.? If you key the rig from CAT, the transmit audio comes from the mike connector on the front, which is probably the last place it would come from.
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If your transmit audio went away I would suspect that you weren't in SSB mode, but that shouldn't affect receive.? Sounds to me like a problem on the PC side of things (audio mixer settings). {shrug} Greg? KO6TH G4RRM Pete via groups.io wrote: I looked in the settings of WSJT and see that Transmit Audio Source is set to Front/Mic but is greyed out and unable to change to Rear/Data which I would have expected the setting to be. |
Hi Greg
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Yes use CAT and the PTT test function in WSJT worked (red) and the radio Tx's (ssb-data) My TX works its the lack of ANY rx that's the issue. As I said in my mail, I have swapped the FT5000 onto the port I use on the interface for VHF and all works fine, so my assumption is the PC > Interface >Ft5000 is fine on either port of the interface, so the problem is in the lead (which I have replaced with no luck) or the data jack on the FT847, There has been no hardware changes since day 1 set up of FT8 on 2m and all worked until recently. I cant help thinking something has gone wrong on the data jack port, it all seems to point to that, anyone had similar problem? Stumped! 73 Pete G4RRM -----Original Message-----
From: [email protected] <[email protected]> On Behalf Of Greg D via groups.io Sent: 18 December 2024 18:07 To: [email protected] Subject: Re: [YaesuFT847] FT847 Data Problem Audio routing on the 847 is fixed, so a grayed-out config button is correct.? Receive audio goes to all the ports (Data, DIN, and the speaker), but transmit audio source is dependent on the mode and where PTT is triggered from.? SSB transmit audio comes from the Data jack; FM transmit audio comes from the DIN connector.? If you key the rig from CAT, the transmit audio comes from the mike connector on the front, which is probably the last place it would come from. If your transmit audio went away I would suspect that you weren't in SSB mode, but that shouldn't affect receive.? Sounds to me like a problem on the PC side of things (audio mixer settings). {shrug} Greg? KO6TH G4RRM Pete via groups.io wrote: I looked in the settings of WSJT and see that Transmit Audio Source is |
Ok, yeah, puzzled here too.? You might try picking the receive audio off the DIN connector (packet, pins 5 & 2) just to see if it's present there.? That might help isolate what's happening.? I assume if you turn up the audio you can hear it in the radio's speaker.
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Separately, I'm puzzled how you're getting good transmit audio when keying the rig with CAT.? You must also be keying with RTS or similar via the Data port, or are blasting the audio through (speaker-level).? In my measurements, there's something like 20db loss when feeding the audio in from the back, and keying the rig from CAT. Greg? KO6TH G4RRM Pete via groups.io wrote: Hi Greg |
Yes I can hear FT8 tones through the speaker if I turn volume up.
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If I turn on MONI I can hear my TX tones too. There is just NIL on RX 73 Pete G4RRM -----Original Message-----
From: [email protected] <[email protected]> On Behalf Of Greg D via groups.io Sent: 19 December 2024 03:50 To: [email protected] Subject: Re: [YaesuFT847] FT847 Data Problem Ok, yeah, puzzled here too.? You might try picking the receive audio off the DIN connector (packet, pins 5 & 2) just to see if it's present there.? That might help isolate what's happening.? I assume if you turn up the audio you can hear it in the radio's speaker. Separately, I'm puzzled how you're getting good transmit audio when keying the rig with CAT.? You must also be keying with RTS or similar via the Data port, or are blasting the audio through (speaker-level). In my measurements, there's something like 20db loss when feeding the audio in from the back, and keying the rig from CAT. Greg? KO6TH G4RRM Pete via groups.io wrote: Hi Greg |