Technology and Operations
This forum is for discussing technological & operational matters pertaining to U-boats.
Re: directional radio antennas
Posted by:
Werner Frank
()
Date: October 08, 2002 11:52PM
For more info check out:
"[www.hy-gain.com"];
They manufacture amateur radio directional antennas for 14 to 29 mega hertz.
You'll find sizes and performance charts and graphs. In addition, receiving antenna can be constructed in loops which provide bi-directional accuracy (perpendicular to loop); multiple loops can determine which of the two directions is correct (called triangulation). Transmitting antennas dimensions are wavelength dependent - usually a half wave.
"[www.hy-gain.com"];
They manufacture amateur radio directional antennas for 14 to 29 mega hertz.
You'll find sizes and performance charts and graphs. In addition, receiving antenna can be constructed in loops which provide bi-directional accuracy (perpendicular to loop); multiple loops can determine which of the two directions is correct (called triangulation). Transmitting antennas dimensions are wavelength dependent - usually a half wave.
Subject | Written By | Posted |
---|---|---|
directional radio antennas | kurt | 09/25/2002 03:18PM |
Re: directional radio antennas | Roy Prince | 09/29/2002 11:54PM |
Re: directional radio antennas | Werner Frank | 10/08/2002 11:52PM |
Re: directional radio antennas | Werner Frank | 10/11/2002 01:27AM |