[1000mp] speaker RF

[RJD]

Art,
 
I would take the transceiver to another part of the house with a dummy load and
mic and do some testing.  If the unit has no rf feed back, then I would attach
the SP-8 and test it again for RF and "snap, crackle, and pop" but still stay
out of the radio room.  If none, then your problem is some other device or
ground loops.  Do you have a good RF ground to the outside of your radio room or
area.  Like Earl said, find the source and work from there.
 
Dick, NJ9K

-----Original Message-----
From: 1000mp-bounces at mailman.qth.net [mailto:1000mp-bounces at mailman.qth.net] On
Behalf Of ROBERT SCOTT
Sent: Thursday, October 20, 2005 18:37
To: Art W2NRA; All about Yaesu 1000mp
Subject: Re: [1000mp] speaker RF

Hi Art
      I am using the lead that came with the SP8 I am
sure that yaesu has used shielded cable well I hope
they have.
     I have put on a ferrite and wound as much of the
cable as I could around it and touch wood the cracks
and bangs have stopped (touch wood).
Something I forgot to mention I can hear my voice on
the rigs own internal speaker as well thanks for all
the suggestions I am very very grateful and hopefully
i will get this problem sorted out with all your help
Thanks again 73's Robin mi5rjs


--- Art W2NRA <art at w2nra.com> wrote:

> I'm not familiar with this speaker.  I'm using
> another brand speaker without a problem.  Forgive me
> for stating the obvious but you are using shielded
> cable from the rig to the speaker, right?
> 
> 73 Art W2NRA
> 
> ROBERT SCOTT wrote:
> 
> >Hi Kostas
> >         Thanks for the information I will try the
> >ferrite on the cable and see what happens although
> I
> >am sure I have tryed this before but thanks again 
> >73's Robin (mi5rjs)
> >
> >
> >
> >
> >--- Kostas SV1DPI <sv1dpi at raag.org> wrote:
> >
> >>Dear Robin
> >>Put a ferrite in the cable which connects the
> 1000mp
> >>with the external 
> >>speaker sp8.
> >>Beside this... you say well grounded. A good dc
> >>ground it is not a good rf 
> >>ground for sure.
> >>If the ground wire is too long maybe you need an
> >>artificial ground.
> >>I had similar problems as i live in second floor
> snd
> >>i can't have a good rf 
> >>ground.
> >>After i used the mfj artificial ground most of the
> >>problems solved (not 
> >>all).
> >>I hope this helps
> >>73 de Kostas sv1dpi
> >>
> >>
> >>----- Original Message ----- 
> >>From: "ROBERT SCOTT" <mi5rjs at btopenworld.com>
> >>To: <1000mp at mailman.qth.net>
> >>Sent: Thursday, October 20, 2005 1:07 AM
> >>Subject: [1000mp] speaker RF
> >>
> >>
> >>Hi All
> >>      I have a problem with RF feedback coming
> >>through
> >>the SP8 speaker, I can hear my voice coming
> through
> >>and sometimes I can hear cracks and bangs coming
> >>through as well.
> >>My SWR is 1.1 as I use a 5 band beam (MA5B) I ave
> >>everything well grounded and I have tried
> different
> >>mics but no good.
> >>I hope someone can give me some idea's and thanks.
> >>                Robin MI5RJS
> >>
> >>Robert J Scott
> >
>
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Robert J Scott

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