[Elecraft] 2-meter solid-state linear amplifiers with K3 2-meter option

[Tom H Childers]

Good advice, Peter.  

Nothing less than LMR600 should be used for feed lines at 2m and
70cm.  Naturally if you're really interested in VHF/UHF work, some
sort of hard-line is better.

Another thing I recommend:

Never, ever use a regular multi port switch box for VHF/UHF.  Make
one your self using coaxial relays.  You can switch 4 antennae with
two relays.  My installation is configured for 2m with stacked
horizontal loops on the NC side of the relay and the 18 el Yagi-Uda
on the NO side.  The 70cm system is done the same way. 

My relays are inside a military ammo can on the mast of the tower.
The ammo can and relays cost less than a store bought switch box.

73,
Tom
Amateur Radio Operator N5GE
ARRL Lifetime Member
QCWA Lifetime Member 

On Mon, 21 Jan 2013 16:13:30 +0000 (GMT), Peter Torry
<peter_torry at btopenworld.com> wrote:

>
>
>
>
>Phil,
>
>I use a K3 with internal transverter for 2m driving a LDmos power amplifier to good effect.  If buying a commercial amp then consider a BEKOHLV series that uses the freescale device with full protection.  Taking the amateur route building one is relatively easy and there are kits and boards available for the DUBUS design by F1JRD,  look up the QST for October 2012 or the W6PQL site where you will find full information.
>
>May I suggest that before buying an amp that you review the system that you intend to use as money spent on a good antenna and low loss feeder are a better investment than an amp.
>
>73
>
>Peter
>G3SMT
>
>
>
>
>
>>> Does anyone have the K3 2-meter option and use a solid-state linear amplifier?
>>> 
>>> If so, which one.  Also, maybe some information on the best to worst in available 2-meter amplifiers as I have never looked into these before.
>>> 
>>> And, a friend suggested building my own 2-meter solid-state amplifier.  Has anyone done this and maybe I can hear a little about that too.
>>> 
>>> Thanks for
> any comments.
>>> 
>>> 73, phil, K7PEH
>>> 
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