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[Amps] Pulsing SWR Meter

To: amps@contesting.com
Subject: [Amps] Pulsing SWR Meter
From: Jay Sturtevant <k2ztdx@gmail.com>
Date: Tue, 26 Dec 2023 09:33:33 -0500
List-post: <mailto:amps@contesting.com>
I use a Nye Viking MB IV (4) A  antenna tuner after my Command HF 2500
Amplifier. The antenna tuner has never had a problem and has always been
adequate for matching any of my antennas.

I recently noticed the SWR meter in the Nye Viking tuner pulsing. The power
meter was unaffected.  In the past, this pulse Iindicated the 9 volt
battery powering the SWR and power meters needed replacement, however, a
new battery did not stop the SWR meter pulsing this time.

I measured the voltage of the new battery at 9.79 volts. I made the mistake
of not measuring the voltage of the 9 volt battery I removed from the tuner
before I disposed of it, however, it had been in the tuner for at least 3
years.

Your suggestions would be appreciated!
Thanks!

Jay, K2ZT
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