TenTec
[Top] [All Lists]

Re: [TenTec] SWR meter glitch on Scout 555

To: casey@tomochka.com, Discussion of Ten-Tec Equipment <tentec@contesting.com>
Subject: Re: [TenTec] SWR meter glitch on Scout 555
From: Bwana Bob <wb2vuf@verizon.net>
Reply-to: Discussion of Ten-Tec Equipment <tentec@contesting.com>
Date: Wed, 04 Jan 2012 18:51:15 -0500
List-post: <tentec@contesting.com">mailto:tentec@contesting.com>
Casey:

What is the meter doing on receive, with no antenna connected?

             73,

             Bob WB2VUF

On 1/3/2012 8:40 AM, Casey wrote:
> Hi All,
>
> My Scout's meter is behaving strangely. Actually, I think the meter is
> OK, but the supporting circuitry is on the fritz. Perhaps someone here
> with more electronics experience than I could suggest some test
> procedures or likely components for failure?
>
> - With the rig idle, regardless of whether the meter switch is swr or
> fwd the meter "twitches" upward half scale about every 5 to 30 seconds
> - Fwd power seems to indicate correctly, but if I'm using Tune as soon
> as I switch it off the needle rises to 3/4 scale then drops to zero.
> Doesn't seem to happen if I just key the rig.
> - The needle deflects left (down) in SWR mode regardless of the true SWR.
>
> Voltage at the meter is about .1V at idle, rising to about 2.5V on Fwd
> mode, 30W out. The coil measures about 2K ohms.
>
> Ideas?
>
> 73,
>
> Casey, TI2/NA7U
> _______________________________________________
> TenTec mailing list
> TenTec@contesting.com
> http://lists.contesting.com/mailman/listinfo/tentec
>
>
> -----
> No virus found in this message.
> Checked by AVG - www.avg.com
> Version: 2012.0.1901 / Virus Database: 2109/4719 - Release Date: 01/02/12
>
>
_______________________________________________
TenTec mailing list
TenTec@contesting.com
http://lists.contesting.com/mailman/listinfo/tentec

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