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. Learn more . . .

Contact

For questions about this group or about programs and activities, please contact the 2017 President, Paul Zander AA6PZ:  AA6PZ (at) arrl [dot] net

2017 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

Meeting Announcement

Our next meeting of the 50MHz and Up Group of N. Calif will be a regular meeting on Thursday, May 4, 2017. The meeting will be at the TI conference building, in the usual small meeting room. You get there from Kifer Rd as shown on our meetings page (click on meetings in the selection bar)

Our program will include a live test session of noise figure by Goran, AD6IW. Bring your LNAs to test. They can be any frequency between 10MHz and 3GHz plus the 10GHz ham band. Accpetable connectors are SMA, N, and WR90 waveguide. Goran will provide the power supply.

Other Upcoming Events

Volunteers are needed for judges for the Synopsys Championship science fair May 22-23. Details at: http://Science-Fair.org

Microwave Update 2017 will be in Santa Clara, October 26-29, at the Santa Clara Biltmore.

Minutes from the April. 2017 meeting

Mike Lavelle called the meeting to order at 7:05pm.
Jeffrey Pawlan gave a presentation on "Horizontally Polarized Antennas for Microwave Bands using a Waveguide Structure with an Array of Slot Pairs" specifically for omnidirectional beacon antennas. This was a combined meeting with the IEEE AP-S Society chater.
There was a roundtable discussion afterwards.
The meeting ended at 9:00 PM.

Beacons

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

NameGridCoordsFreqCallPowerAntComments
Mt Vaca CM88wj 38.415, -122.116 10368.325 W6ASL +30dBm 10dBi omni CW ID
Mt Allison CM97bl 37.500, -121.872 10369.192
10369.225
10368.625
24192.010
47061.017
AD6FP/R


W6QI/B
WA6QDP
+17dBm
+30dBm total out

+17dBm
+12dBm
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
CW ID
FM ID, aimed to Los Gatos
Mt Leeson CM97ae 37.167, -121.924 10367.990
24191.975
47087.99
79919.92
KF6KVG +20dBm
+20dBm
+5dBm
-5dBm
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
10368.360
24192.050
K6QPV/B
N6IZW/B
K6QPV/B
+34dBm
+27dBm
+34dBm EIRP
10dBi omni
12dBi omni
horn
      -
CW ID, locked
CW ID, locked, aimed to LA