[Milsurplus] [ARC5] Smart People: Antenna Matching Mystery

[Jack Antonio]

On 8/7/2017 3:35 PM, MICHAEL ST ANGELO wrote:
> I recall a document detailing the load impedance of antenna on various
> planes. Does anyone have a copy of that document for the Command antenna
> for those planes?


The manual for the Collins 18S-4/A has a chart showing
impedance vs frequency for a 46' antenna mounted on
a C-47. Antenna strung from top of aircraft at radio
operator position to top of vertical stabilizer.

Even though it says C-47, the chart references an
NC-75959, which looks like a civilian registration
number.

Shouldn't be too hard to scan if anyone has an interest.

Jack Antonio
WA7DIA