Info on whip antenna shown in KX3 photo

[wayne burdick]

We've had some questions about the whip antenna shown in the KX3 data-
sheet photo. It's a Maldol AH-C14 20-meter loading coil and AH-R  
telescoping whip. Total length is about 48 inches.

I've made QSOs of up to 3000 miles using this type of whip, handheld,  
while walking with the KX1 and dragging a 13' counterpoise wire. It's  
a very compact emergency antenna, with two parts that disassemble and  
have a max length of just over 7".

That said, I strongly recommend using longer whips for the HF bands  
whenever possible. I found that just increasing the length of this  
whip by about 1' made a noticeable difference in signal strength on  
both RX and TX.

I'm still searching for the "perfect" stealth whip for lightweight  
hand-held use. What I'd like is a nearly invisible antenna that's 6 to  
7 feet long, self-supporting but able to survive collisions with  
trees, and either telescopes or rolls up to less than 8" long. It  
should cover 40-6 meters, preferably with the aid of the internal ATU  
in the radio so there's no need to change taps or elements while  
walking.

73,
Wayne
N6KR

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[Rick Dettinger-3]

I am wondering if this type of whip antenna is entirely supported by  
the BNC antenna connector?  It seems like that would put an unfair  
strain on the poor little jack!
Also, it would be interesting to know the lowest band that you have  
had successful contacts on.  The concept of a totally self contained  
HF rig is one that I have long been interested in.  But, I never  
really thought that it could be done due to antenna considerations.  
Someone brought up the question of the bolt on paddles being worth the  
price.  I think that the answer is yes, since that is part of the  
station integration.


73,
Rick  K7MW



On Dec 28, 2011, at 12:25 PM, Wayne Burdick wrote:

> We've had some questions about the whip antenna shown in the KX3 data-
> sheet photo. It's a Maldol AH-C14 20-meter loading coil and AH-R
> telescoping whip. Total length is about 48 inches.
>
> I've made QSOs of up to 3000 miles using this type of whip, handheld,
> while walking with the KX1 and dragging a 13' counterpoise wire. It's
> a very compact emergency antenna, with two parts that disassemble and
> have a max length of just over 7".
>
> That said, I strongly recommend using longer whips for the HF bands
> whenever possible. I found that just increasing the length of this
> whip by about 1' made a noticeable difference in signal strength on
> both RX and TX.
>
> I'm still searching for the "perfect" stealth whip for lightweight
> hand-held use. What I'd like is a nearly invisible antenna that's 6 to
> 7 feet long, self-supporting but able to survive collisions with
> trees, and either telescopes or rolls up to less than 8" long. It
> should cover 40-6 meters, preferably with the aid of the internal ATU
> in the radio so there's no need to change taps or elements while
> walking.
>
> 73,
> Wayne
> N6KR
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html

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[Bill K9YEQ]

Wayne,

 

I have successfully used an ATX Walkabout.  I purchased it from a supplier
in England.  I think that MFJ has a similar unit.  I comes with a jumper and
will work to 75 meters.  I have successfully used it on my FT-817. I also
drag a counterpoise based on band.  I haven't used it for a while.  I also
us a Maldol AH C14 for 20 and 17 meters.  I have had my best success on SSB
running 2w working FL to TX.

 

73,

Bill

K9YEQ

 

From: [hidden email] [mailto:[hidden email]] On Behalf Of Wayne
Burdick
Sent: Wednesday, December 28, 2011 2:25 PM
To: [hidden email]; Elecraft Reflector
Subject: [KX3] Info on whip antenna shown in KX3 photo

 

 

We've had some questions about the whip antenna shown in the KX3 data-
sheet photo. It's a Maldol AH-C14 20-meter loading coil and AH-R
telescoping whip. Total length is about 48 inches.

I've made QSOs of up to 3000 miles using this type of whip, handheld,
while walking with the KX1 and dragging a 13' counterpoise wire. It's
a very compact emergency antenna, with two parts that disassemble and
have a max length of just over 7".

That said, I strongly recommend using longer whips for the HF bands
whenever possible. I found that just increasing the length of this
whip by about 1' made a noticeable difference in signal strength on
both RX and TX.

I'm still searching for the "perfect" stealth whip for lightweight
hand-held use. What I'd like is a nearly invisible antenna that's 6 to
7 feet long, self-supporting but able to survive collisions with
trees, and either telescopes or rolls up to less than 8" long. It
should cover 40-6 meters, preferably with the aid of the internal ATU
in the radio so there's no need to change taps or elements while
walking.

73,
Wayne
N6KR

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