Bits and Pieces

Watty's picture
Submitted by Watty on 13 June 2010 - 3:24pm

Found this interesting site on RF design

Still working on PIC based CATpad, PIC based Admiral system and a 70MHz / 4m Transverter for 145MHz. The 25MHz Crystal to 75MHz -5dBm L.O. to drive ring diode mixer is simple and uses a single BC547 transistor.

Added two new aerials on my rotating 144MHz yagi mast:

Three Yagi Aerials

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