[Elecraft] Small QRP antenna
K9MA
k9ma at sdellington.us
Wed Dec 28 17:03:04 EST 2016
If you're willing to spend a little more for less weight, this outfit
has carbon-fiber fishing poles of various lengths:
allfishingbuy.com
The one I have extends to 38 feet, weighs about 500 grams, and collapses
to 34 inches. The tip is pretty floppy, but it holds up my AWG 26
wire. Stiffer ones are available, but they're heavier, though sometimes
cheaper. You do have to keep the wire away from the pole, as it's
conductive.
Never, ever lay it on the ground when some klutz can step on it, though.
73,
Scott K9MA
On 12/28/2016 15:47, Chris Tate - N6WM wrote:
> I just ordered a number of options from SotaBeams in the UK to compliment my KX2.
>
> http://www.sotabeams.co.uk/antennas-hf/
>
> Small and sometimes conveniently packed options make taking the fully qrv ready rig to the Caribbean very easy.
>
> Even as a big gun contester I am having alot of fun with the little feature packed KX2 and its portable potential. they also sell a telescopic 30 ft fiberglass mast that breaks down to 26". amazing what you can fit in a backpack these days ;-).
>
> Chris
> N6WM
>
>
> ________________________________________
> From: Elecraft [elecraft-bounces at mailman.qth.net] on behalf of K9MA [k9ma at sdellington.us]
> Sent: Wednesday, December 28, 2016 1:32 PM
> To: elecraft at mailman.qth.net
> Subject: Re: [Elecraft] Small QRP antenna
>
> I've had good luck with the end fed 40 M half wave, too. I use it with
> the KX1 to do CWT's on bicycle tours (in warmer weather). While the
> transformer and ATU apparently works, I wanted a really good match to
> maximize output power, so I built a small QRP tuner for it:
>
> http://sdellington.us/hr/EFHW_Tuner2.pdf
>
> Most of the parts come from the Pacific Antenna BLT+ kit, which they
> were willing to sell me without the case.
>
> 73,
>
> Scott K9MA
>
>
>
> On 12/28/2016 14:56, Fred Jensen wrote:
>> The Summits On The Air crowd, at least one of whom "runs" up
>> mountains, has had very good luck with end-fed half-waves. The
>> transformer weighs next to nothing, and the rest is just wire.
>> Requires no counterpoise, very ground insensitive since it's fed at a
>> voltage node. Also because of that, you need no coax, just an adapter
>> between rig and transformer. The higher you can get the middle
>> [current node] the better, but it will work very well with just about
>> any elevation on the far end.
>>
>> For 40, it's about 67 ft of wire, and is a full-wave on 20 and will
>> work well there. My KX1, when I still had it, had no problem finding
>> a match. My HOA-Stealth here at home is an 80-10 EFHW strung about 6
>> ft high along the top of a wooden fence. Works surprisingly well.
>>
>> Fred K6DGW
>> Sparks NV DM09dn
>> Washoe County
>>
>> --Northern California Contest Club
>> --CU in the Cal QSO Party
>> --7-8 Oct 2017
>>
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>
> --
> Scott K9MA
>
> k9ma at sdellington.us
>
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--
Scott K9MA
k9ma at sdellington.us
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