Are you talking about an M2 Eggbeater? I use one on high passes. It (nor are any other 70cm antennas) worth a darn if surrounded by vegetation or deciduous trees. Up in the clear, it can do pretty well, but still no where nearly as good as a small Yagi with fixed elevation.
If you are having full duplex (intermod issues, where your uplink is trashing your downliink), do the following:
On the RX side put a *good* 2m/70cm duplexer in the shack. If needed put two back to back for increased isolation.
Use the duplexer(s) as bandpass filters, they work great . Comet 514J works VERY well here (I put a 50 ohm load on the unused HF port...it's a triplexer)
I am using an EAntenna interlaced dual band yagi (5 EL on 2m, 8 EL on 70cm) and have no intermod in full duplex whatsoever. It has a single common feedpoint at the antenna (no duplexer), and I run two duplexers back to back in the shack.
See my web page
73, N0AN
Hasan
On Sun, Jan 19, 2020 at 6:50 PM John Geiger via AMSAT-BB [email protected] wrote:
My dualband yagi is having a little trouble with full duplex, and I am wondering if anyone has used a M squared or other 70cm loop for the uplink antenna on the SSB satellites? Does it work well at getting a good signal into the satellites?
73 John W5TD _______________________________________________ Sent via [email protected]. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: https://www.amsat.org/mailman/listinfo/amsat-bb