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FT-301 No Tx Output - Solved!
Hi all, I've had an FT-301 for a couple of years, waiting for restoration. Finally got it on the bench and have been working thru the issues. I thought I'd share information about the biggest issue,
By Joel Weder, VE6EI · #151 ·
Re: Low power output on 80 meters.
I rotated the band selector may times on the 80 meter position and now it is drawing 5 amps so now I am getting some output. I guess I better try to clean the contacts on the band selector. Next is
By Robert Holsti · #150 ·
Re: Low power output on 80 meters.
I would first check DRIVER output just disconnect the PWR AMP input BNCs on the back. If driver making 5-10 watts out, then problem is PWR AMP LPF or band SW wafer switches.
By Randy W7CPA · #149 ·
no output on 80 meters
I have no output on 80 meters, all other bands are ok. Where do i start to troubleshoot this problem?? I can hear output on a external receiver. Thanks !! Robert KH2BR
By Robert Holsti · #148 ·
Low power output on 80 meters.
I have very very low output on 80 meters. It is so low that it does not indicate any current draw on the meter. I can hear the signal on another receiver. I did not start troubleshooting with the
By Robert Holsti · #147 ·
Re: Yaesu Ft-301
If the vox is not working, you can verify the ic mc14011. It's a trouble source. PP6EW Emerson Em qui., 23 de dez. de 2021 ¨¤s 03:29, <vorsterjanco@...> escreveu:
By emerson · #146 ·
Re: Yaesu Ft-301
Check for any loose or broken wires or solder connections. Gene N4FZ
By Gene N4FZ · #145 ·
Re: Yaesu Ft-301
I replaced that relay but still nothing it keeps on doing that. I replaced the caps and the diode as well. It doesn't war to work for me.
By vorsterjanco@... · #144 ·
Re: Yaesu Ft-301
Could be that the Tx/Rx relay is sticking in the transmit position. Removing power would reset it. The relay may need to be replaced. Or it possibly could be removed and the contacts burnished. Joel
By Joel Weder, VE6EI · #143 ·
Re: Yaesu Ft-301
The vox is completly down. I tryd dummy load and an dipole antena it doesnt change unfortunatly. I can put the trive switch whaerever i want its still the same unfortunately
By vorsterjanco@... · #142 ·
Re: Yaesu Ft-301
Starting with the simple reasons first is the vox turned up a bit? Does it do it into a dummy load? Does it do it if the Power is turned right down. Dave¡­G4DAX
By Dave smith · #141 ·
Yaesu Ft-301
Good day Im a new yaesu ft-301 user. I have a real head scratcher. My yaesu ft-301 works fine until you press the ptt key then its like it stays in tx mode and the sound output does not return to
By vorsterjanco@... · #140 ·
Re: CW output on FT301
Possible VOX settings/circuit problems?
By Randy W7CPA · #139 ·
Re: CW output on FT301
Ok Mel¡­.it looks like the voltage applied to the relay to change it over night be dropping as the relay changes over¡­.a poke about with your test meter might prove this ¡­..then it may be a
By Dave smith · #138 ·
Re: CW output on FT301
When I push to talk.
By Mel Snyder · #137 ·
Re: CW output on FT301
Does the chattering happen when you just power up the rig, or is it when you press the push to talk. Dave¡­.G4DAX.
By Dave smith · #136 ·
Re: CW output on FT301
Carlos (and others) I¡¯ve got an FT-301 (analog dial) - the first new rig I owned as a ham (1978) - and it¡¯s been sick since I sent it for service in 2009 to a guy who¡¯s now SK. A few months
By Mel Snyder · #135 ·
Re: CW output on FT301
As Dave points out the CW OSC is on the IF board. Make sure DRIVE control is fully CW and measure pin 3 on the IF board in CW MODE.This enables CW from the MODE switch. If not there, MODE SW contacts
By Randy W7CPA · #134 ·
Re: My Bargan FT 301S?
Congratulations Dave! They are fine rigs. Enjoy & 73 Gene N4FZ
By Gene N4FZ · #133 ·
My Bargan FT 301S?
Well thanks to the help received on here, my bargan price 301S is compleatly aligned and is up and running. Now I shall have to think about a paint job for the case, but I have had 2 QSOs on it with
By Dave smith · #132 ·