[ICOM] IC-756 - CW problem - and on Christmas yet!

[Jan C. Robbins]

Good for you Carl!

The problems--and your solutions--are common ones for those of us who 
run mobile--dropping voltage, Icom DC cables, RF on the coax (yes, 
Virginia, dummy loads do radiate), etc.  Glad it was that 
straightforward!  Happy New Year; look for you on CW.

73 Jan N0JR

Carl Vangsness wrote:
> Thanks to everyone for all the good suggestions. As with everything 
> electronic, there was more than one issue.
> 
> 1. MFJ Mighty Lite power supply sags from 13.8 vdc no load down to less 
> than 11.4 vdc during normal CW keying, down to 10.6 vdc during keydown 
> of more than 5 seconds. I will begin immediate search for better power 
> supply.
> 
> 2. DC cable from PS to 756 running parallel to and inches away from 
> antenna cable exiting LDG tuner. After doing power supply voltage 
> measurements, problem went away. Then came back after repositioning 
> tuner and Rigblaster.
> 
> Brilliant ham radio solution: aluminum foil wrapped around power cord 
> (Icom's unshielded basic two large wires) to get it  past the length 
> near the antenna cable. Result: nice 20 minute CW full power QSO with 
> KCØSHU near Denver. (I'm near Minneapolis.)
> 
> I do have some other lack-of-ground issues with shack in basement near 
> any true earth to plant a ground rod in, but that continues to be a work 
> in progress.
> 
> Again thanks to everyone on the forum for their help and encouragement 
> and a good New Year to all.
> 
> 73 de Carl WCØV
> 
>>  
>>
> 
> ----
> Your Moderator: Dick Flanagan K7VC, icom-owner at mailman.qth.net
> Win a new Icom IC-756 PRO III and help QSL/QTH.net
> Details at: http://mailman.qth.net/
> 
> 

-- 
"There is no end to what you can accomplish
if you don't care who gets the credit."   Anon.