[amsat-bb] Re: Primestar L Band

Using 30-in, gain = 24.1 dBi at 2401 MHz Using 48-in, gain = 29.2 dBi at 2401 MHz, gain = 23.7* dBi at 1268 MHz

• Note: The smaller dish is too small at 1268 MHz and the

larger dish may not produce this gain since it < 10 wavelength

in diam.

I can vouch for that. We just finished a lab where we used some of the little 1.2 and 2.4 GHz TV cameras as signal sources and then used a 24" DIRECT TV dishe to let the students measure the gain between a dipole and the dipole on the dish.

You are correct. There is no meaningful gain at 1.2 GHz. 2.4 GHz gain was striking. I'll wait to see their data before I commit to how much gain we got at 2.4 GHz.

Bob, WB4APR