Wireless set 19 coax modern subtitute

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11-08-22, 22:45

Jacques Fortin Jacques Fortin is offline

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Join Date: Nov 2016

Location: Montreal, QC, Canada

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WS #19 RF cables impedance.

Daniel, use RG-11 coax.
I measured the dimensions of the original coax that fitted the Pye connectors many years ago and that gave 75 ohms of impedance.
And, a RG-11 coax have the same dimensions as the original ones.
RG-8 can be used also, as the lines are too short to represent any mismatch.
Variation in cables capacitance will be balanced by the variometer anyways.

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