While I'm still new to the sats I have been doing VHF/UHF weak signal work since the 80's and I've always preferred to spend the money on feedline rather than pre-amps. Given that pre-amps amplify the rx noise and signal you really don't improve signal to noise unless the noise figure of the pre-amp is better than your receiver. Usually your just amplifying the signal to make up for the loss that's going to happen as the signal makes it's way down the coax.
You also add complexity when you want to TX on the antenna since you will need to add a t/r relay at the antenna. In addition, you are still losing tx power with the higher loss cable so depending on your ERP goal you may need an amplifier, generally not an issue with the LEO's. LMR-600 or hardline is my feedline of choice for 2m and up. I'm not suggesting that pre-amps can't or shouldn't be used but usually aren't needed if good low loss feedline is used to begin with.
On Thu, Jul 19, 2018 at 9:17 AM Roger Titmuss [email protected] wrote:
Hi as a newcomer to this part of the hobby I have a couple of questions.
- When using the M2 egg beaters how important is it to install a masthead
- Again with egg beater will 30 watts be enough to get back to the bird?
I am using about 80 feet of RG213 to connect the antenna.
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