[1000mp] Bad Antenna Relay?

[John Tait]

Subject: Re: [1000mp] Bad Antenna Relay?

I don't know if the MK V antenna connections are like the MP... If so,
check the wire connection from your SO239 antenna sockets to the PCB..
They have a nasty habit of breaking the solder joint on the PCB, creating
 an intermittant connection, just like a "sticky" relay.
The SO239 mounting plate is not screwed to  the main back panel, and
flexes inwards when you push home the PL259 plugs.
This can break the solder joint....It's a good idea to replace the stiff
wire
from the SO239 with a multistrand(and therefore flexible) wire.
 This is a very common problem on FT1000MPs..
     GL es 73
                      John EI7BA  http://www.iol.ie/~bravo/


> Paul Franson wrote:
>
> > I've got an MP MARK-V - for a while when using antenna A the receiver
> > sensitivity would be way down when switching from xmit to receive.
> > Hitting the MOX button once or twice would fix it.  Now it's doing it
> > on antenna B also - guess I'll have to fix it.  I'd guess it's a relay
> > with dirty contacts - right?  Where is it?
> >
> > Thanks for any tips
> >
> > Paul  W2LE
>
> Oddly enough, I have experienced a similar problem over the past few
> days and was just resigning myself to having to dig into the rig when I
> discovered I had mistakenly twiddled the squelch control when I planned
> to adjust the monitor level.  Now I have restored the squelch control to
> its fully CCW position the problem has gone away.
>
> I'm sure that won't be what you fellows have done but I'm happy to bare
> my backside just in case!
>
> 73
>
> Bob, 5B4AGN
>
>
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