LHS Episode #464: The Weekender XC

It's time once again for The Weekender. This is our bi-weekly departure into the world of amateur radio contests, open source conventions, special events, listener challenges, hedonism and just plain fun. Thanks for listening and, if you happen to get a chance, feel free to call us or e-mail and send us some feedback. Tell us how we're doing. We'd love to hear from you.

73 de The LHS Crew

One comment on “LHS Episode #464: The Weekender XC”

  • Please consider the db ratio of the transmit signal to the receive signal. A duplexer with four cans (two on receive, two on transmit) will offer 65 db to 90 db isolation between receive and transmit frequencies. That ratio is fixed once tuned so increasing power output will decrease sensitivity of the repeater. Repeaters with poor isolation pulse on then off due the transmit signal desencing the receiver on the repeater so the system just pulses the transmitter on and then off everything the input signal is acquired then “lost”. This is very easy to demonstrate with a Fustion repeater and a weak input signal like an portable transceiver.

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