| ANTENNA: 11.2m dish, homebuilt f/D = 0.41 2m & 70cm : Dual - Dipole - Feed 23cm : W2IMU - feedhorn |
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| Because of feed interaction, the
effective diameter on 70cm is 10 meters only. On 23cm the efficiency is even less because of underillumination. The gain on this band is equivalent to an optimized 9 meter dish. |
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| Usually I can hear echos on 23cm with as little as 1 Watt at the feed ! | Preamps.: 2m : MGF1801 70cm: FHX35 + MGF1302 23cm: FHX35 + FHX35 |
Power amplifiers : YL1050 on all three bands Drivers: 1x2C39 on 2m, 2x2C39 on 70&23cm 3 - phase power supply |