Fall 2005 Issue


10 GHz and Up
Liaison Frequency Observations

As witnessed by this past summer’s ARRL 10 GHz and Up Contest, the 10-GHz amateur radio band is enjoying increasing popularity. In this article, WB6NOA describes how members of the San Bernardino Microwave Society, and others, are handling the increased activity in their area of the country.

By Gordon West,* WB6NOA
 

The recent ARRL-sponsored 10 GHz and Up Contest saw more coast-to-coast microwave activity than ever before. In anticipation of wall-to-wall signals on 10 GHz in southern California, fixed and rover stations staked out frequency claims ahead of time! Here is just a small list of how the San Bernardino Microwave Society (SBMS@hamradio.com) spread out its coordinated operations:

Baja Mexico 10,368.450 MHz
Signal Hill, near L.A. 10,368.380 MHz
Frasier Mountain, north of L.A. valley 10,368.525 MHz
San Diego mountaintops 10,368.200 MHz
An island off southern California 10,368.475 MHz
San Bernardino mountains east of L.A. 10,368.400 MHz
Mountaintop rovers also pre-announced their favorite X-band frequencies.

Throughout the country, 10-GHz teams met at elevated hot spots and consecutively operated their own individual equipment to increase activity, scores, and the personal satisfaction of maximizing the total count of stations each person’s little milliwatt rig had worked. The big signals and big dishes went first, allowing the distant station to lock frequency as well as bearings. The team stations then came on individually, usually going from higher power stations down to the pipsqueak stations that ultimately would be heard because all of the team members helped set the direction of the path.
“Multiple team stations helped out one another by letting the lowest power station come into rotation as a long path was beginning to peak,” comments Bill Alber, WA6CAX, operating out of the Bay Area.

 

The author’s new 10-GHz antenna for dune-buggy mobile.

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