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 2019 President, Mike Lavelle (K6ML):  miclevel at comcast.net

2019 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 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

Location, day, and time of the meetings of the 50MHz and Up Group:

We have reserved the Summit Room within the Sports Basement store in Sunnyvale for 7pm on the first Tuesday of each month except for July and December.
The address of the Sports Basement is:
1177 Kern Ave
Sunnyvale, CA

March 2019 Meeting Announcement

Our next meeting will be on Tuesday, March 5th at 7pm. All of our meetings are public and everyone is invited. For our program, Gary Lauterbach (K6MG) will tell us about stressed parabolic reflectors. The meeting will begin at 7pm and we must exit the building at 9pm.



The new 2019 Officers and Board Members



Mike Lavelle's mcVx SDR microwave IF exciter project

You will find the presentation by Mike, K6ML, on the Articles tab. This is about his kit-built "mcHF" QRP transceiver from M0NKA in the UK. Mike has built this unit as an IF rig, and he has made a number of custom modifications. This includes his slides on the mcVx SDR microwave IF exciter plus 3 bonus pages of construction details including the RF board mods for common IF to the miniverter.

Beacons

Microwave Beacons in operation 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