Topband: Unident Signals and Dipole

Tom Rauch
Mon, 13 Nov 2000 19:18:30 -0500

Hi Bill,

Antennas radiate like they receive. If the ladder line is properly 
installed and fed in balance, the radiation will be insignificant. If the 
radiation contribution of the feedline is 40 dB down, it will be the 
same on reception.  

The USB stations very well could be boats. Fishing boats and 
general boaters, both foreign and domestic, are now commonly 
using the lower-end of 80 meters and the upper-end of 160 meters. 

I occasionally heard some US fishermen on 1818 USB, but 
managed to convince them to stay below 1800 or above 2000. 
There are quite a few foreign fishing vessels on the upper half of 
160 meters, and even some AM CB operators from Mexico 
(complete with "tweety-birds", echos, and other sound effects).   

I expect the lower frequency bands to eventually become like ten 
meters, since large marine suppliers are selling amateur radios (a 
company in Florida sells ICOM) to boaters.

73, Tom W8JI

FAQ on WWW:     
Administrative requests: