[ICOM] Flickering display - 756 Pro

Mike Mellinger WA0SXV wa0sxv at mellinger.com
Sun Oct 17 14:11:12 EDT 2004


Just a thought -- I never had any flickering on my 756pro displays until I
backed off the display intensity a bit.  Both of my PROs flicker a bit
during keying (with or without amp) when the display intensity is only 5 or
so.

73,
Mike WA0SXV


-----Original Message-----
From: icom-bounces at mailman.qth.net [mailto:icom-bounces at mailman.qth.net] On
Behalf Of Joe - WDØM
Sent: Sunday, October 17, 2004 10:39
To: icom at mailman.qth.net
Subject: [ICOM] Flickering display - 756 Pro

Your thoughts??

After having no problems at all for years, this morning when I fired up the 
756 Pro, Alpha 87a and called a DX station on CW, I noticed that the 
display on the 756 Pro began flickering in sync with the CW keying.  At the 
time, I was running about a KW on the Alpha 87a.  When I backed off on the 
power a bit, the flickering stopped.  I've never seen this problem before, 
and I've run the same combination for years.  The same thing happens, 
regardless of the band while using my SteppIR antenna, or when running 30 
meters or lower on inverted vees/slopers/dipoles.

All equipment is grounded/bonded/single point ground.  I don't have a 
keying relay between the Pro and the Alpha 87a because the 87a easily meets 
the requirements on the relay in the Pro.  Nothing has changed in the 
configuration that I can attribute to this issue.  All I can think of is 
that maybe I SHOULD have a keying relay.....

Anyone seen this happen before??

73,
Joe
WDØM





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