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Old February 14th 06, 12:45 PM posted to rec.radio.amateur.equipment
Dom1127
 
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Default Kenwood TS-480sat Antenna Tuner Query

Hi,
I am looking at purchasing one of these radio. I would like to use it
in the car and I am wondering what the lowest frequency I can tune into
on a mobile antenna. I wouldn't want to go to much bigger than a 7-9
foot whip.

Also, is there any radio which will tune below 7mhz on a 7-9ft (or
smaller) whip? I know Codan make an antenna tuner that will do it.

Thanks, Dom


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Old February 14th 06, 01:06 PM posted to rec.radio.amateur.equipment
Noon-Air
 
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Default Kenwood TS-480sat Antenna Tuner Query


"Dom1127" wrote in message
oups.com...
Hi,
I am looking at purchasing one of these radio. I would like to use it
in the car and I am wondering what the lowest frequency I can tune into
on a mobile antenna. I wouldn't want to go to much bigger than a 7-9
foot whip.

Also, is there any radio which will tune below 7mhz on a 7-9ft (or
smaller) whip? I know Codan make an antenna tuner that will do it.

Thanks, Dom


Use a screwdriver antenna with a Turbo-Tuner...then you can use the 'HX
instead of the 'SAT. That extra 100 watts comes in real handy especially in
the mobile. Talk to the folks at Tarheel antennas.... they did right by me.

73
-n6ojn


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Old February 14th 06, 07:25 PM posted to rec.radio.amateur.equipment
Fred McKenzie
 
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Default Kenwood TS-480sat Antenna Tuner Query

In article .com,
"Dom1127" wrote:

I am looking at purchasing one of these radio. I would like to use it
in the car and I am wondering what the lowest frequency I can tune into
on a mobile antenna. I wouldn't want to go to much bigger than a 7-9
foot whip.

Also, is there any radio which will tune below 7mhz on a 7-9ft (or
smaller) whip? I know Codan make an antenna tuner that will do it.


Dom-

My TS-480SAT can tune the 40 Meter phone band, but only 1/2 to 2/3 of the
75 Meter phone band using the appropriate Hustler resonator and mast.

You are asking too much of a built-in tuner. The specs of built-in tuners
usally say the antenna must have an SWR of 3:1 maximum. Because of
component values, they may match a wider range on the higher bands, but
not on 75 and 40 Meters.

To do what you want, you should consider N6OJN's suggestion, or look at
one of the separate tuners that companies like Kenwood and Icom have for
their respective equipment. MFJ, LDG and SGC also make external auto
tuners.

73, Fred, K4DII
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Old February 16th 06, 05:58 PM posted to rec.radio.amateur.equipment
Rick
 
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Default Kenwood TS-480sat Antenna Tuner Query

I have a TS-450S (no tuner) and and SGC SG-237 Smartuner. The SGC needs
only 8 feet of antenna down to 3.5MHz. I used this setup in my camper,
and it did OK. If you're interested, both are currently up for auction
on eBay. Sold the camper, and not interested in mobile operation.

Rick
WYGH
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Old February 18th 06, 10:44 PM posted to rec.radio.amateur.equipment
Dom1127
 
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Default Kenwood TS-480sat Antenna Tuner Query

Hi.
Thanks Rick for the offer.
I will need to tune as low as 2.020Mhz which is 1 of the emergency
frequencies on the system I am using.

The antenna needs to be very robust as it will be used on a 4WD. Codan
and Barrett specialise in this area but it's hard to find just the A/T
antenna!

I'll do some research into the screwdriver antennas and turbo tuner.

MoonRaker does a great antenna. Here is a link for those interested in
a 2-30Mhz auto tune antenna which is less than 9Ft tall!!!

http://www.moonraker.com.au/ftp/at230.pdf

Thanks, Dom



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