18 Apr
2011
18 Apr
'11
9:26 a.m.
On Mon, Apr 18, 2011 at 11:47:55AM -0400, Dave McGuire wrote:
On 4/18/11 10:18 AM, dwight elvey wrote:
And this is where I disagree. For a small suburban lot, a transmatch
and some wire can make a lot of sense.
I thought I'd mention, the recieving antenna
is quite forgiving about
wavelengths
but the transmitting antenna needs to be tuned or you'll damage your final.
And I will throw in here, for both points: Tuned antennas for
receiving do work better than untuned ones, and all (or nearly all) rigs
with solid-state finals will back off the drive as SWR goes up.
Making a tuned antenna in the attic can be a
little tricky.
...and don't fall into the "transmatch as a panacea" trap. Antenna
tuners are almost always useful, and with any
half-decent one you can
get a nearly-1:1 SWR with pretty much anything that conducts, but that
Conersely, a 1:1 SWR does not make an antenna any good, a dummy load
is 1:1.
Sheesh the SWR myth continues and continues and won't die.
I suggest reading
http://www.k4mg.com/Antenna%20Design%20the%20Easy%20Way.htm
http://www.w2du.com/Chapter01.pdf
won't make it a good radiator. Remember, a dummy
load has 1:1 SWR!
Exactly! A dummy load is 1:1! It's better to talk about the antenna system.
Ok folks, I think we have over stayed the amateur radio topic for now. ;-)
Dave, get your ticket back you lid. ;-) It's very easy now and the
fun one can do is worth it.
-Dave
- 73 Diane VA3DB
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