Re: [1000mp] speaker RF

Art W2NRA art at w2nra.com
Thu Oct 20 08:46:51 EDT 2005


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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