On 2019-12-31 05:54, Zach Metzinger via AMSAT-BB wrote:
A prototypical LNA for 20 EUR ($22 USD) at http://lna4all.blogspot.com/, > and a determined amateur can construct one for less.
Following up on this a bit, PA3CSG's web page has a 70cm antenna switch built with cheap relays you might find in consumer electronics:
This design could easily be combined with the LNA4ALL design into an inexpensive, DC-switched system capable of handling significant power.
--- Zach N0ZGO