50 MHz & Up Group

Group Logo


The 50 MHz and Up Group is an educational and public service amateur radio organization centered in the San Francisco Bay area. The group is interested in developing and utilizing communications on frequencies from 50MHz up through light-waves. The group is open to any related topics that might be of interest to members, such as: technology, design, construction, operation, public service, contesting and antennas. Learn more . . .


For questions about this group or about programs and activities, please contact the 2018 President, Steve Shyvers (N6KLD):  steve.shyvers (at) gmail [dot] com

2018 dues and member information must be updated

If you do not have any changes at all in your contact information, then simply send an email with a sentance to Jeffrey Pawlan satating that nothing has changed. Please use jpawlan@yahoo.com
To send a memberform with your updated information or to join, please go to the Membership tab of this website.
Dues are $10 for a year, $15 for two years. This can be brought to a meeting or sent to the new Treasurer:
Oliver Barrett
1111 Pecos Way
Sunnyvale CA 94089

Make your check payable to 50MHz and Up Group of N. Calif Inc

November 2018 Meeting Announcement

Our meeting location has changed

We no longer have access to the TI meeting facilities for our 50MHz and Up Group.

Our next meeting of the 50MHz and Up Group of N. Calif will be on Thursday, Nov. 1 beginning at 7:00pm. Note that this meeting will be in a community room of the Sports Basement located at 1177 Kern Ave, Sunnyvale. This is off of Lawrence and approximately across from St Johns. The meeting which will begin at 7pm and we must exit the building at 9pm.

Our agenda will include (but not limited to):

Minutes of the Oct. 2018 meeting

Steve Shyvers (N6KLD) called the meeting to order at 7:08pm.
The meeting started with announcements.

Current Announcements:

MUD 2019 will be in Dallas, TX. For more information see http://www.microwaveupdate.org/

New Business:

Proposal to show and demonstrate microwave rigs at Pacificon.
After some discussion the consensus was to setup a portable 10 GHz rig or two near the ATV booth in the main hallway. Paul Zanders and others indicated they would be willing to be around the rig when they were free, and answer questions.

50MHz and Up Group 2019 Meeting Location / Schedule:
Thursdays are unavailable at the Sports Basement for the first half of the 2019.
The January meeting will be on the second Tuesday to avoid January 1st. For February through June 2019, the meeting night will move to Tuesday (7-9 PM). For July the second Tuesday will be requested. For August through December 2019, the first Tuesday will be requested.

How to increase participation in microwave building and operation?

How to honor Willís contribution to microwave?
Several ideas have been proposed. One is to obtain a club station license. This would provide a call sign for multiple operators to use one loaner rigs during contests. This provides operating advantage per ARRL microwave contest rules. The group had a club station license that expired in 2007, with little or no use.
A second idea is for the group to obtain the call W0EOM as a vanity call sign for the club station, as a tribute to Will Jensby. This would need Will's family's permission.
Getting the club station license and vanity call sign involves effort, knowledge, and some risk. It requires an individual to act as the trustee for the station license. It also requires two separate applications to FCC, one for the club license, and one for the vanity call. It could cause the IRS to review the Group's non-profit status.
These ideas prompted considerable discussion. After the discussion Steve Shyvers asked for a motion to proceed. Brian Kline (WA6QDP) moved that the group not proceed with the club license idea. The motion was seconded, and passed 10 for, and 3 against.

Holiday gift of appreciation for Sports Basement.
Steve Shyvers suggested that we should give something to Sports Basement in appreciation of their providing the meeting location. A discussion of options and the merits of the idea followed. Brian Kline (WA6QDP) moved that the group not proceed with the holiday gift idea. The motion was seconded, and passed 6 for, and 3 against.

50 MHz and Up Group Holiday Dinner
Request for location ideas, preferred dates, day of the week, etc.
Should we hold the meeting in lieu of the regular meeting?
Should we hold the Yankee Gift exchange?
After some discussion it was decided to have the holiday dinner at the Big Bear Diner, on El Camino Real, in Sunnyvale, if it could be scheduled. Steve Shyvers volunteered to make the arrangements for the dinner. The target date will be in the first two weeks of December, with Thursday the first choice, and Tuesday the second choice. The consensus was to hold the Yankee Gift exchange for those who wished to participate.

10 GHz and Up contest September weekend retrospective round table. Suggested topics were:
Did we do better this weekend? Locations to avoid next time? What was better? What was the same? What was worse? Contact Coordination. Was Cactus better? Was NC9RS more useful? What tools and aids worked? The participants shared their experiences and observations.
The short summary was the second weekend went much better, for a variety of reasons. The cooler weather being a significant factor. N9JIM spread sheet was useful for long term status information, but not so useful for specific rover stop information, because people did not keep it updated.

Paul Zander moved that the meeting be adjourned, and Chris Veargason, N6JET seconded the motion. The motion passed. The meeting adjourned at 8:55 PM.

New Spreadsheet of all members' band capabilities and activities

Steve, Chris, and Jim have created a spreadsheet of information provided by all interested members and friends. You may update or add your information by contacting any of these three people. This spreadsheet is publically viewable by going to click here

The 2018 Officers and Board Members

Talk given at the Nov 2018 meeting by Mike Lavelle on the mcVx SDR microwave IF exciter

Here are his slides on the mcVx SDR microwave IF exciter plus 3 bonus pages of construction details that were too much for the talk. This includes the RF board mods for common IF to the miniverter. Please click here to view or download. This is a PDF.


Microwave Beacons in operation The following beacons are known to be operating as of 04-16-2016:

Mt Vaca CM88wj 38.415, -122.116 10368.325 W6ASL +30dBm 10dBi omni CW ID
Mt Allison CM97bl 37.500, -121.872 10369.192

+30dBm total out

10dBi omni

12dBi omni
open WG
CW ID, drifts ~10 kHz
Linear translator: Output is 11-55 kHz above beacon
Input 600 kHz below desired output
FM ID, aimed to Los Gatos
Mt Leeson CM97ae 37.167, -121.924 10367.990
KF6KVG +20dBm
2.5" horn
1.5" horn
1.25" horn
0.6" horn
FM ID, locked, aimed NW
FM ID, locked, aimed NW
FM ID, unlocked, aimed NW
no ID, locked, aimed NW
Bear Mtn. DM06ir 37.747, -119.281 24191.990 W6BY/B +27dBm 20 slot omni locked, IDs as DM07IC, will fix
Mt Frazier DM04ms 34.775, -118.969 10368.310 N6CA/B +31dBm 14dBi omni CW ID, locked
Heaps Peak DM14kf 34.235, -117.141 10368.370 ? +?? dBm ??dBi omni CW ID
Palos Verdes DM03ts 33.747, -118.336 10368.300 N6CA/B +32dBm 14dBi omni CW ID, locked
Santiago DM13fr 33.712, -117.534 10368.330 KE6JUV +27dBm 10dBi omni CW ID, locked
San Miguel DM12mq 32.697, -116.935 5760.000
+34dBm EIRP
10dBi omni
12dBi omni
CW ID, locked
CW ID, locked, aimed to LA