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Dual Helix antenna and Notch Filters



Tony

I measured the performance of the notch filters today.  The RX filter has a
47dB notch at 1269 and a through loss of less than 0.15dB, while the TX
filter has a 51dB notch at 2401 with a through loss of about 0.1dB. Photos
of these and the antenna are now on my website at www.g3wdg.free-online.co.uk.

73

Charlie
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