Hi Mike,
That just goes so show you how little I know! I assumed, apparently
incorrectly, that there was some loss IN ADDITION to the transmission line loss
(which I know how to calculate). In other words, I thought that if my
transmitter was connected directly to the antenna there would be some mismatch
loss and that as soon as I added coax, then ADDITIONAL transmission line loss
would be added and the TOTAL loss would be the sum of the two components. I
infer from the responses that the loss is only the transmission line loss
(aside from whatever efficiency losses are in the system due to the type of
loading, resistance between connections, conductor loss, ground loss, etc.,
etc.).
Thanks for your reply!
73, es DX,
Bob/AA6VB
________________________________
From: Mike Waters <mikewate@gmail.com>
Sent: Thursday, October 25, 2018 10:43 AM
To: Chortek, Robert L.
Cc: topband
Subject: Re: Topband: Loss Question
It is impossible to answer you without knowing the length and type of coax. :-)
73, Mike
www.w0btu.com<http://www.w0btu.com>
WØBTU's Radio Communication Technical Articles and File
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Amateur radio technical information by Mike Waters, W0BTU
On Thu, Oct 25, 2018, 12:24 PM Chortek, Robert L.
<Robert.Chortek@berliner.com<mailto:Robert.Chortek@berliner.com>> wrote:
Does anyone know how much power would be lost if a resonant antenna with an
Impedance of say, e.g. 36 Ohms is fed with 50 Ohm coax? Is there a good
source where I could look up this kind of information?
Thanks!
Bob/AA6VB
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