50 MHz & Up Group

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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.
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For questions about this group or about programs and activities, please contact the 2020 President, Mike Lavelle (K6ML):  miclevel at comcast.net

In-person meetings are cancelled and replaced with virtual meetings

In coordination with State and Santa Clara County emergency regulations to help stop the spread of the CV pandemic, our in person meetings have been cancelled. We will announce when it is again safe to meet together in person.

We will either have our meetings with the audio via 70cm FM using the Bay-Net FM analog linked repeater system thanks to George (KJ6VU) or we will have an online interactive presentation using zoom.

Here is a link to the repeater system description:
click here for the Bay Net analog FM repeater information

East Bay:
443.975 PL 100.0 +5 MHz offset (448.975 input)
South Bay:
145.390 PL 100.0 -600 Khz offset (144.790 input)
443.225 PL 100.0 +5 MHz offset (448.225 input)

If that doesn't work for you, and you know how to use IRLP, then we can send you the link via email on the reflector. It is not possible to put this link on the website because the special characters in it conflict with HTML

The June 2 meeting was online via zoom

Paul Wade,W1GHZ gave a live presentation via zoom. He talked about low-cost transverters and a multiband microwave radio.
His slides are on our Articles and Presentations tab as a PDF file

We also have an on-the-air net on our 10GHz repeater/translator

Please join the 10GHz translator net on the last Tuesday at 8pm. The next one is 6/30. You may also share ideas using our email reflector. (you must be a member to use the email reflector)

2020 dues and member information must be updated

If you have changed your address, email, phone, other info, please send a simple email to jpawlan@yahoo.com
If nothing has changed at all, then once a year please send an email saying nothing has changed. Make sure you state whether your email address has been changed or not.
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 must be 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

the 2020 Officers

Mike Lavelle (K6ML) president
Pete Mahowald (K6TJ) vice president
Brian Kline (WA6QDP) secretary
Oliver Barrett (KB6BA) treasurer
Paul Zander (AA6PZ), director
David Fifield (AD6A), director
Stuart Neubarth, (WA6SFI), director

Beacons in Northern and Central Calif

The SBMS and the San Diego Microwave Group are the best resources for Southern Calif.

Here is our document about the upgrade and operation of the Mt Allison Beacon
Please click here to view or download

Microwave Beacons in operation The following beacons are known to be operating as of 06-30-2019:
Mt Vaca CM88wj 38.415, -122.116 10368.325 W6ASL +30dBm 10dBi omni CW ID
Mt Allison CM97bl 37.500, -121.872 10369.000

+29dBm total out

10dBi omni
12dBi omni
+20 dBi horn 27 deg beamwidth, aimed SW
CW ID, locked, S-meter output
Linear translator: Output is 11-55 kHz above beacon
Input 600 kHz below desired output
CW ID locked
CW ID locked
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