"David G. Nagel" wrote in message
...
wrote:
For more grins, what do you think the "LOAD" and "TUNE" knobs on an older
tube transmitter are? They match the output power tube impedance to the
antenna system impedance. If you don't believe me mistune a tube
transmitter and feel the warmth come from the finals. Have a spare in
stock for when you are done.
Dave WD9BDZ
I think I am trying to say the same thing.
One has to define where the matching system of the final amplifier stops and
the antenna system starts. I look at an antenna tuner that is within a few
feet of the transmitter as an extention of the matching network between the
amplifier device (tube or transistor) and the load which starts with the
transmission line.
If the antenna tuner is actually at the antenna, then it is a matching
device for the antenna and not in the scope of this discussion.
Is the automatic internal antenna tuner such as in my Icom746 pro really an
antenna tuner or is it just taking the place of some knobs that I could turn
such as in a Heathkit sb100 ? All that is being done in either case is to
match the amplifing device to whatever load is put to it.
I thnk it is just a mater of what someone wants to call it at the time.