Re: 75 ohm coax

Posted by Phil Kane-2 on Apr 03, 2020; 3:45pm
URL: http://elecraft.85.s1.nabble.com/75-ohm-coax-tp7659432p7659461.html

On 4/2/2020 7:58 PM, Ignacy wrote:

> In transmit too but small nuisances are
> necessity to use a tuner for low SWR antennas and nonstandard connectors.

It depends what you regard as "standard".  The TV/CATV "standard" are
F-connectors, available almost everywhere the cable is retailed.  There
are 75-ohm BNC connectors available.  When I ran a TV signal
measurements unit decades ago, we had lots of 75-ohm cables with BNCs on
them and we painted a red ring around the connector body to distinguish
 them from 50-ohm BNCs.

"I love working with standards because there are so many to choose from"

> But running two in parallel does not make any sense.

Yes it foes if you want a shielded balanced line.  Just disregard the
losses and impedance mismatches.

73 de K2ASP - Phil Kane
Elecraft K2/100   s/n 5402

From a Clearing in the Silicon Forest
Beaverton (Washington County) Oregon
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