Study Group Station Antennas

The KC6KGE station antenna in Taft, California.

Cushcraft A144-11 Yagi at 20 feet with 15.3 dBi gain.

Effective isotropic radiated power: 526 watts (57 dBm)

The KI6STW station antenna in Milpitas, California.

Two stacked M2 HO loops at 20 feet with 10.14 dBi gain.

Effective isotropic radiated power: 62 watts (48 dBm)

The KP4MD station antennas in Citrus Heights, California.

Two stacked halos at 14 feet and 18 feet with 7.88 dBi theoretical gain. Effective isotropic radiated power: 212 watts (53 dBm).

5 element 432 MHz Yagi with 10 dBi gain (not shown). Effective isotropic radiated power: 315 watts (55 dBm).

The K6PZB station antenna in Graton, California. Cushcraft A13B2 13 element Yagi at 20 feet with 15.8 dBi theoretical gain. Effective isotropic radiated power: 1,734 watts (62 dBm).

The KE6GLA station antenna in El Dorado Hills, California. M2 EB-144 Eggbeater (at left) at 30 feet with 6 dBi theoretical gain. Effective isotropic radiated power: 32 watts (45 dBm).

The N6GN station antennas in Santa Rosa, California. 4 element 144 MHz Yagi (at right) at 20 feet with 9 dBi gain. Effective isotropic radiated power: 40 watts (46 dBm).

6 element 432 MHz Yagi (at left) 10.2 dB gain. Effective isotropic radiated power: 315 watts (55 dBm).

The WA6LIE station antenna in Salinas, California. Cushcraft A13B2 13 element Yagi at 40 feet with 15.8 dBi theoretical gain. Effective isotropic radiated power: 380 watts (56 dBm).

The KD6RF station antenna in Livermore, California. VTenn UltraWide Band Vivaldi at 22 feet with 6.5 dBi gain at 144 MHz. Effective isotropic radiated power: 89 Watts (50 dBm).

Above it is an Arrow 4 element 144 MHz Yagi antenna.

2m WSPR Activity

World Wide 2 meter WSPR daily spot report activity has increased 100-fold since this study commenced in June 2012.

VHF/UHF WSPR Study Station Data

VHF/UHF WSPR Study Group

*EIRP = Effective isotropic radiated power