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Comrod Broadband Antenna 66-88
MHz
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Military
Diskcone Antenna 30 - 80 MHz
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Allgon
GP Antenna 78/79 MHz
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Broadband
Shortwave antenna
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Bandpass filter UHF
Adjustable for 430 - 470 MHz
-15 dB @ + - 2 MHz
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Autophon Duplex Filters UHF
Adjustable for 430 - 470 MHz
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Bandpass filter 66 - 88 MHz
The shorter filters are rebuilt for 145 MHz
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Duplex filters 434 MHz
Left: Wacom Bandpass/Bandreject, rebuilt for 2 MHz Notch, -35 dB/can
Right: BpBr, Rebuilt from 4 meter Bandpass Filters, see above. -35
dB/can
Insertion loss: 1.5 dB
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Wacom BpBr
Modification for 2 MHz Notch
8.2 pF Ceramic Capacitor
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BpBr
Filter 434 MHz
Rebuilt from 4 meter Bandpass Filter, see above
Coupling loop and adjustable piston Capacitor
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Bandpass filter 145 MHz
Rebuilt from a 66-88 MHz filter
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Bandpass filter 145 MHz
Coupling Loops
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Bandpass filter 145 MHz
Adjusting a filter with Sweep Generator and Spectrum Analyzer
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