Topband: DXE 8 Verticals

2012-02-20 Thread David Cole
 I have used both the Hi-Z and the DXE 8 circle - maybe I am missing something but gain is one thing and signal to noise is another! Does changing the links in the DXE amp improve the signal to noise? if its just gain then that can be achieve many other ways.

Topband: Topband list and 630 Meters - the decision

2012-02-20 Thread Tree
All - I want to publicly thank the 50 or so of you who gave me input on the issue of what to do about the new 630 meter band with respect to this reflector. There were many good comments received. I think the answers pretty much favored one of two actions: - Allow some discussion here - and

Re: Topband: DXE 8 Verticals

2012-02-20 Thread Richard (Rick) Karlquist
This is a confusing issue. Changing the links in the DXE amp definitely changes the gain. Whether it also also changes the signal to noise ratio depends on the relationship between external noise picked up by the antenna, the antenna preamp noise, and the receiver front end noise. Because the