[Yaesu] Yaesu Digest, Vol 37, Issue 4

[dgmaley@inav.net]

On Fri, 06 Jan 2006 12:00:11 -0500

First: Intermittants like this must be checked into a 
dummy load.
If you can't get the radio to act up into a load, 
carefully check
the antenna.  The VSWR unit is a good idea, also check the 
big PIN
diode that switches the transmitter to the antenna.  I 
found that a
1N4007 works just fine here.  The original can do some 
really strange
things.   Dave  WA0ZZG









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>Today's Topics:
>
>   1. FT1000D XMT Problem (R March)
>   2. (no subject) (Willem Braeckevelt)
>   3.  FT1000D XMT Problem (Mike Switzer)
>   4. Re: Yaesu parts - the saga continues (Gary Smith)
>   5. Re: FL7000 (boat-anchor) (Gary Smith)
>   6. Re: Yaesu parts - the saga continues (Hardy 
>Landskov)
>   7. Re: Yaesu parts - the saga continues (Mike S)
>
>
>----------------------------------------------------------------------
>
>Message: 1
>Date: Thu, 5 Jan 2006 09:57:05 -0800
>From: "R March" <n7ua at ix.netcom.com>
>Subject: [Yaesu] FT1000D XMT Problem
>To: <yaesu at contesting.com>
>Message-ID: <003101c61221$7174ab50$b83cf204 at kathy>
>Content-Type: text/plain;	charset="iso-8859-1"
>
>My old faithful FT 1000D has developed a XMT 
>intermittent.  The power drops
>from normal to 1 watt.  This happens very quickly, on and 
>off, sounding much
>like a bad connection.  It has hard to induce (in fact it 
>seams to occur
>only with rare DX, hi), but is somewhat sensitive to 
>mechanical vibration.
>No problem on RX.  Has anyone else experienced a similar 
>problem and found a
>fix?  My first thought was relays, but outside of the LPF 
>relays, their
>really aren't any in the signal path, at least that I 
>could find (?). This
>happens on both SSB and CW.  Any ideas are 
>welcome.(Relays, pots,
>connectors, grounds, ??)   But I am especially looking 
>for any known
>failures that produce these results. Thanks,  Bob
>
>
>
>------------------------------
>