[1000mp] FT1000MP Tx Audio Present in Speaker Audio

Wed, 23 Apr 2003 14:59:02 -0700

Hi,

I had the same problem.
The solution was to use a toroid, and wrap several turns of the
speaker wires around the core of the toroid. The more turns the
better.
If this is inconvenient, just use the toroid, wrap a pair of
magnet wire,
18 - 20 gauge around the core. Solder to the end of the magnet
wire.
It solved my problem.

Mort,  KB6BSN

----- Original Message -----
From: "Pete Smith" <[email protected]>
To: <[email protected]>; <[email protected]>
Sent: Wednesday, April 23, 2003 2:26 PM
Subject: Re: [1000mp] FT1000MP Tx Audio Present in Speaker Audio

> At 04:17 PM 4/23/03 -0500, Billy Cox wrote:
> >...
> >There's an Yaesu factory bulletin from way back then, that had
you
> >improve some of the grounding between different stages to cure
> >some RFI type of problems. Added some double sided tape and
> >improved one or two other grounding point among other changes.
> >
> >Just a thought ...
> >
>
> Billy raises an interesting point.  How can one get an
authoritative list
> of the factory bulletins issued on the 1000MP family of radios,
much less
> the bulletins themselves?  Yaesu doesn't seem to make them
available, which
> says something...  Now that a substantial secondary market is
developing on
> 1000MPs and even Mark 5s, it would certainly be nice to know
the kind of
> thing that Kenwood routinely provided, which was a schedule of
when
> production changes were applied and which serial numbers
incorporated them.
>
> I'm not aware of anyone authoritative at Yeasu who has
addressed this
> subject, though individual technicians have told me on the
phone that this
> information is "internal use only."  I've tried e-mailing Chip
Margelli and
> never even got a "we're thinking about it" reply.  Maybe if a
number of us
> raise the issue with Chip at Dayton we can get something done.
>
> 73, Pete N4ZR
> The World HF Contest Station Database was updated 11 April 03.
> Are you current? www.pvrc.org/wcsd/wcsdsearch.htm
>
>
>
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