Topband
[Top] [All Lists]

Re: Topband: K9AY Switching box

To: Josep <ea6bf@ea6bf.com>
Subject: Re: Topband: K9AY Switching box
From: Guy Olinger K2AV <olinger@bellsouth.net>
Date: Thu, 19 Jan 2012 10:10:54 -0500
List-post: <topband@contesting.com">mailto:topband@contesting.com>
Gut suspicion is that you have a relay with fused contacts or blown
coil or some such, and your ACTUAL connections inside are not not what
you would be expecting from the schematic.  Or maybe a burned up trace
or something.

On Thu, Jan 19, 2012 at 5:33 AM, Josep <ea6bf@ea6bf.com> wrote:
> Hi all,
>
> I have recently noted a degradation in the signals arrived to my K9AY loops. 
> In fact, signals are better on my 25m top-loaded-vertical rather than the 
> loops.. I have checked SWR at the base of the ant and it´s very reasonable, 
> 1.2:1 and some 40 ohm. Measured inside the shack, and directly to MFJ-259, 
> remains the same, but things change when i measure it through the switching 
> relay box, SWR goes up 2.5:1..! I have leaved the coax connected directly to 
> the rig, instead of connecting it to the relay box, but can switch loops 
> anyway. Advantage of connecting it to relay box, is to get the Preamp working 
> I guess...So, later today or tomorrow morning I will try how it works this 
> way. What could be the reason of that increment in SWR when coax goes thru 
> relay box..? Something has blown  inside..? Is there anyway to check the 
> box..?
>
> Thanks for help..
>
> Josep
> EA6BF
> _______________________________________________
> UR RST IS ... ... ..9 QSB QSB - hw? BK
_______________________________________________
UR RST IS ... ... ..9 QSB QSB - hw? BK

<Prev in Thread] Current Thread [Next in Thread>