FW: Re: Elecrafts T-1

classic Classic list List threaded Threaded
1 message Options
Reply | Threaded
Open this post in threaded view
|

FW: Re: Elecrafts T-1

Dan Barker
Well, what you really want to do it to "get out". I imagine the near field
is directly proportional to the far field, in terms of "power" (whatever
that really is), so a field-strength meter much closer to the antenna than
the shack should give a good relative indication of output. So, if the T1,
with 5W in, and tuned, causes a FS meter to say 18uV key down, and the ZM-2
under the same conditions makes it say 15uV, then I'd infer the T1 was 20%
more efficient.

RMS volts at the tuner output ought to be measurable, also. The tuner that
puts the highest P-P voltage at a consistent spot on the feedline should be
the more efficient.

Dan / WG4S / K2 #2456

<snip>
This is my question on the T1 and every tuner I use. For 5 watts out of the
transmitter, how much of that goes to the antenna when I use the T1 rather
than the ZM-2, etc... That's what I want to know, but darned if I know how
to make such measurements.
</snip>

_______________________________________________
Elecraft mailing list
Post to: [hidden email]
You must be a subscriber to post to the list.
Subscriber Info (Addr. Change, sub, unsub etc.):
 http://mailman.qth.net/mailman/listinfo/elecraft   

Help: http://mailman.qth.net/subscribers.htm
Elecraft web page: http://www.elecraft.com