N1BWT 10 GHz Page
new call W1GHZ
NEW! Download the BD program for the
A work in progress:
New Periscope antenna system for 10 GHz
and up on the tower.
The flyswatter reflector, which rotates and tilts, is fed by a dish on the ground
directly under it.
Dick, K2RIW, has been talking about periscope antennas for so long that I had
to put one up and show him how to do it!
Now with new tilt indicator on flyswatter
The tilt indicator is a Wineguard "Digital Magic" Elevation Sensing Unit. I got it
from Stark Electronic
With tilt sensor installed
Tilt sensor closeup
The periscope antenna worked great for rainscatter during the June 1998 VHF
Contest. I worked four grids on 10 GHz, best DX >130 miles, during heavy
Here are some new sound clips of AF1T on CW and SSB.
WA1MBA has written a good
explanation of rainscatter.
The following contacts were
made with my dish pointed straight up through a skylight, into light snow
in January, heavy rain in March:
10 GHz Snow scatter recordings
from January VHF contest:
10 GHz Rain scatter recordings
from 9 March 1997
Let me know how they sound!
DSP guys - can you find a way
to improve copy?
Third beta test version 3 (11/24/98)of HDLANT
program - Download
Interdigital filter program - INTFIL.EXE
N1BWT and KB1VC in action!
This new book contains many of the
10 GHz articles referenced on the 10 GHz home page. Available from ARRL
notes for the Drake 2880 S-Band downconverter from Larry,
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