This all depends on what is meant by antenna tuning.
When teaching newbies the wrong phrase can cause problems that are not seen
till later.
Antennas are tuned with wire cutters or a hacksaw so the feed impedance is the
desired value, ideally 50 ohm resistive or at least a match for the feeder
c
On this subject, it may be of interest to point to the article on my
website www.w3fpr.com "Antennas, Transmission Lines and Tuners". This
article first appeared in QRP Quarterly in July 2001.
I am pleased that DXzone has also recognized that article and has
included it in its Antennas/Theory
Alan your explanation opens the door to erroneous conclusions. Frequently a
feed line does NOT have a low SWR by design. It is still a feed line in that
it carries RF from the transmitter site to the radiator with a minimum of
radiation from itself. A classic example is the Zepp antenna: a 1/2 wave
, February 20, 2018 8:10 PM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] Antenna tuning or matching unit
On this subject, it may be of interest to point to the article on my website
www.w3fpr.com "Antennas, Transmission Lines and Tuners". This article first
appeared in QRP Qu
craft] Antenna tuning or matching unit
Alan your explanation opens the door to erroneous conclusions. Frequently a
feed line does NOT have a low SWR by design. It is still a feed line in that it
carries RF from the transmitter site to the radiator with a minimum of
radiation from itself. A classic ex
I agree with Ron in that one must understand using an ATU at the transmitter
does not change feedline loss. In fact it adds additional system loss due to
loss incurred in the tuner. If the transmitter can not deliver rated power
into the load that is a different issue to resolve. The ATU may a
6 matches
Mail list logo
