=K=5=D=H= wrote:

Icom AH-4 mobile users:

I recently installed an AH-4 antenna tuner in my mobile
station, connected to my IC-706Mk2G. I'm using a 9 foot
stainless steel CB whip as my radiating element, fed by
about 2 feet of wire from the tuner to the base of the
whip. What kind of radiating element are you using, and
what kind of success do you have with it on 40m and 75m?
I also have an Outbacker Perth antenna that I've used
for many years, but I got tired of being unable to jump
from band to band easily. I've thought about using the
Outbacker with the AH-4, and just omitting the Wander
Lead and matching transformer connection (in other words,
use the Outbacker in its "raw" 75m state). I'm a bit
concerned that the AH-4 won't handle this on 40m because
the AH-4 manual says to avoid odd multiples of 1/2 wave,
and that would be the case using the 75m antenna on 40m.

Let's hear your thoughts and experiences!

73,
Dean K5DH


I was using a similar setup as yours. IC706MKII and the AH-4 tuner on a
9ft whip. I went back to my Webster Bandspanner and got consistently
better results. While it was convenient when changing bands, it does
little good if you cannot make the contact.

This setup might be good at the peak of a solar cycle when you can make
the communications trip with lower power, but in average or below
average conditions I think you are losing too much using the tuner and a
whip.

73
Andy
WD4KDN


--
I have never met a liberal street cop.

"nitespark" wrote in message
news:LY6Rd.42306$EG1.39447@lakeread04...


=K=5=D=H= wrote:

Icom AH-4 mobile users:

I recently installed an AH-4 antenna tuner in my mobile
station, connected to my IC-706Mk2G. I'm using a 9 foot
stainless steel CB whip as my radiating element, fed by
about 2 feet of wire from the tuner to the base of the
whip. What kind of radiating element are you using, and
what kind of success do you have with it on 40m and 75m?
I also have an Outbacker Perth antenna that I've used
for many years, but I got tired of being unable to jump
from band to band easily. I've thought about using the
Outbacker with the AH-4, and just omitting the Wander
Lead and matching transformer connection (in other words,
use the Outbacker in its "raw" 75m state). I'm a bit
concerned that the AH-4 won't handle this on 40m because
the AH-4 manual says to avoid odd multiples of 1/2 wave,
and that would be the case using the 75m antenna on 40m.

Let's hear your thoughts and experiences!

73,
Dean K5DH

I have run a similar set up with the SGC - the 2 foot bit in the car is a
serious
bad point, to the extent that SGC actually make a "bracket" that enables the
box to be clamped to the outside of the car and the whip is mounted on part of
this bracket,
right up very close to the output terminal - the aerial on these boxes starts
and is very "active" at the output terminal.

You HAVE to understand and appreciate that to make them work at all, if not
particularly spectacularly - they are primarily a "convenience box" over a
"performance box", so do have their place, but are quite a compromise.


Nick

nick smith wrote:
You HAVE to understand and appreciate that to make them work at all, if not
particularly spectacularly - they are primarily a "convenience box" over a
"performance box", so do have their place, but are quite a compromise.

With a 13 ft. whip and SG-230, it made a pretty good
20m-10m mobile antenna for me.
--
73, Cecil http://www.qsl.net/w5dxp


----== Posted via Newsfeeds.Com - Unlimited-Uncensored-Secure Usenet News==----
http://www.newsfeeds.com The #1 Newsgroup Service in the World! 100,000 Newsgroups
---= East/West-Coast Server Farms - Total Privacy via Encryption =---

"Cecil Moore" wrote in message

With a 13 ft. whip and SG-230, it made a pretty good
20m-10m mobile antenna for me.

Hi Cecil,

I have one too - and I am sure it does make an excellent mobile antenna
system with 13 feet on its output.

I use mine for "hotel room use" mainly, or any quick lash up in available
space.
I am constantly amazed by the results I get and wouldn't part with it.

On the car I use a resonant whip about 3 feet long on the gutter for 40M and
equally that works well....

For a permanent fixed sytem though its an expensive convenience over other
systems
based on e.g. wire dipoles.

It is a great box though !

Nick