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Author Topic: Antenna questions  (Read 2785 times)
KF5PTB
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Posts: 7




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« on: December 23, 2012, 03:40:25 PM »

I have a chameleon V1 HF/VHF/UHF Multiband Antenna. On p 1 the pamphlet lists 6, 11, 15, 17, 20, 30, 40, 60, and 80 meters. On p. 2 the same paperwork says 80, to 6, 2, 1.25, and 70 meters. Will this work with 2 m?
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N4CR
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Posts: 1653




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« Reply #1 on: December 23, 2012, 04:42:37 PM »

It's probably better than a dummy load. Maybe.
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73 de N4CR, Phil

We are Coulomb of Borg. Resistance is futile. Voltage, on the other hand, has potential.
K5LXP
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Posts: 4450


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« Reply #2 on: December 23, 2012, 05:40:29 PM »

"Everything Works" - N6BT


Mark K5LXP
Albuquerque, NM
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WB6BYU
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Posts: 13029




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« Reply #3 on: December 23, 2012, 06:41:35 PM »

The Chameleon web site says that the antenna will work 6m, 2m and 70cm if you use it
without the base matching section.  But it appears that, if you are using the base
matching section on HF, that your mounting base would need to be grounded rather
than fed in the normal manner, so simply removing the matching unit and screwing
the antenna into the base won't work, even if the threads match.  (The matching
unit has its own coax fitting.)

The basic HF antenna requires an autotuner, however, and it isn't clear from the description
whether you need an autotuner for those bands or not.  That might be a problem, as
autotuners for 2m are not common.

But try it and see - it might work on 2m as well as it does on HF.
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KA4POL
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Posts: 1921




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« Reply #4 on: December 23, 2012, 10:14:48 PM »

You did not mention what rig you are using. So by any means make sure the SWR is low enough to not fry the final.
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KF5PTB
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Posts: 7




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« Reply #5 on: December 24, 2012, 12:49:03 PM »

I am using an FT-90 on 2 m. Thanks for all of your input.
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KB5UBI
Member

Posts: 97




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« Reply #6 on: December 24, 2012, 05:46:44 PM »

The Chameleon web site says that the antenna will work 6m, 2m and 70cm if you use it
without the base matching section.  But it appears that, if you are using the base
matching section on HF, that your mounting base would need to be grounded rather
than fed in the normal manner, so simply removing the matching unit and screwing
the antenna into the base won't work, even if the threads match.  (The matching
unit has its own coax fitting.)

The basic HF antenna requires an autotuner, however, and it isn't clear from the description
whether you need an autotuner for those bands or not.  That might be a problem, as
autotuners for 2m are not common.

But try it and see - it might work on 2m as well as it does on HF.

Am I wrong, or did you just describe a dual band 2M/440 antenna attached to a reactive dummy load?
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WB2WIK
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Posts: 20547




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« Reply #7 on: December 25, 2012, 01:26:19 PM »

I went to visit where these are made -- couldn't get in.

Don't ask.

This is as much an antenna as my chain link fence is an antenna. Wink

If you want a 2m antenna, it would be easy to build one, as they're small and the materials are cheap.   And it will absolutely work better than the Chameleon.
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WD4ELG
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Posts: 863




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« Reply #8 on: December 25, 2012, 02:31:30 PM »

WB2WIK - are you saying that you could not get in...because license plates are also hammered out in this location?   Cheesy  (kidding)
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AC2EU
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Posts: 340


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« Reply #9 on: December 25, 2012, 05:10:00 PM »

Wow! Another magical mystery antenna.
All I can say is: If sounds too good to be true...

For mobile, I 'd go with a screwdriver type ,at least the load is tunable!
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G8JNJ
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Posts: 473


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« Reply #10 on: December 27, 2012, 07:56:58 AM »

Hi,

Take a look about 1/2 way down this page for more details of antenna performance.

http://g8jnj.webs.com/currentprojects.htm

Regards,

Martin - G8JNJ

www.g8jnj.webs.com
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