April 23, 2025
Now that I have my 23cm EME station back stable and tracking the moon tightly, it is time to see how the AG6EE pre-amp plays. Petr has packaged the pre-amp module, filters, isolation relay and a 50 ohm termination into a single package. A male N connector connects directly to the RX feed port doing away with any short stubs of coax.
Working several stations and shooting some sun noise figures shows me at least a 1.5db receive improvement over my current setup. When we have the next blue bird day here in Montana I'll breakout SpectraVue and do some better science.
When13.8 vdc is supplied to the AG6EE pre-amp it goes into receive mode, remove the DC power and it drops into transmit mode switching the pre-amp's front end into a 50 ohm termination.
When you hear KB2SA and his 1.9M dish in the speaker at -16 you know things are working.
There is nothing wrong with the WD5AGO pre-amps I've been using for many years, but I have to run 2 inches of semi-flex coax ahead of the pre-amp to hook things up. That degrades the noise figure.
 |
| It's all in one elegant package. |