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RigBlaster Advantage USB

Apr 24th 2012, 17:04


Joined: May 25th 2011, 15:36
Total Topics: 0
Total Posts: 0
I have a RigBlaster Advantage and a Dell Laptop that I use with my Icom 737a. I am in the second floor of an apartment. When I connect the USB cable, or the Laptop AC Adapter, or both, I lose 95% of reception on the rig. Any thoughts?
Apr 26th 2012, 01:29


Joined: Apr 4th 1998, 00:00
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Total Posts: 0

Yes, it it quite common for AC adapters to use efficient switching power supplies that are quite noisy--I've heard complaints about cheap ones that don't even meet the various regulatory standards for radiated and conducted emissions--and these don't come anywhere near what you need to protection.

You may want to try additional filtering--perhaps common mode chokes--winding 10 or 15 turns of the cables through large type 43 or 31 ferrite material.

Zack Lau W1VT
ARRL Senior Lab Engineer

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