Tag Archive: Preamp

432MHz (70cm) Masthead System (Remote RX/TX Amp)

m1bxf October 6, 2013 2 Comments

Following on from my 23cm Masthead system I decided G3PYE needed a similar system for 70cm. The system will mirror the 23cm version with a TX amp and a Preamp in the box, but in addition I fitted a band…
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Project

432Mhz, 70cm, amp, Bodge, Preamp, project

23cm Masthead System (Remote RX/TX Amp)

m1bxf March 17, 2013 4 Comments

Most people know coax has loss, the higher the frequency the greater the relative loss. You can go buy better coax with less loss – however every coax has loss and once the signal is lost, it’s lost. This is…
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Project

1296MHz, 23cm, amp, Preamp, project