@mailman.qth.net
Subject: Re: [Elecraft] 2-meter solid-state linear amplifiers with K3
2-meter option
Yes, although I did not indicate this earlier, getting a high-gain antenna
is first on my research and shopping list. I know more about what I want
there and where to find it. It is the amplifier part
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
On 1/21/2013 8:13 AM, Peter Torry wrote:
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.
Excellent suggestion, Peter.The difference between 5 watts and 160
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
Yes, although I did not indicate this earlier, getting a high-gain antenna is
first on my research and shopping list. I know more about what I want there
and where to find it. It is the amplifier part of the problem that I was
asking here. Also, just in case someone wants to raise the
For the cost of LMR-600 you can find excellent used hard line removed from
cell use etc.
I used to buy it from the tower installers for 1.00 ft. most of it was
new end of
spool stuff even.
Shop around, its there, even the junk yards have it many times if your
in a
large populated area. A
I do not run the Elecraft transverters but have had a series of VHF
amps by Mirage, Klitzing, and RFConcepts. The last is my favorite
and I have two 2w/35w linears that need repair and my second 30w/170w
RFConcepts linear. I finally blew up the first one by being
long-winded on FM, though I
This sounds good on the surface, but has the potential to be a disaster.
New end-of-spool heliax is fine. BUT...Avoid used heliax like the plague
unless you have the equipment to scan it (like a good Time Domain
Reflectometer). The longer the heliax is on the tower, the higher the
percentage
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.
On 1/20/2013 9:53 AM, Phil Hystad wrote:
Does anyone have the K3 2-meter option and use a solid-state linear amplifier?
I've not done so with the Elecraft units, but I own several 2M power
brick amps, and studied the field before buying them. My understanding
is that of the moderate cost,
Owning and having owned several VHF/UHF solid state brick amplifiers, I have
the following to offer:
I have four Mirage brick amps right now. Two for 2 meters; one is a brown 10
in 80 watt output, and the other is a black 50 in 300 watt output amp.
I use those for EME and meteor scatter with
On 1/20/2013 11:35 AM, Sebastian, W4AS wrote:
I would however, say to stay clear of the TE Systems amps.
My word of mouth advice (dating from my time in Chicago) agrees with
this. Rather unreliable, for the reasons noted.
73, Jim K9YC
If I were new to the use of solid state VHF/UHF amps I would make
sure I bought amps with protection for SWR and overdrive mistakes.
I use TE Systems amps with the K3 and XV432 in the shack, but as
others have said, be careful with any amps that have no protection
circuits. The cost of repair
Tom,
Right. I would never buy a solid-state amp without full high-SWR protection
built in. I am not close to making any decisions though as I do not even own
the 2-meter K3 option yet though it is on my to-buy list. A number of details
need to be resolved. One is a good high-gain 2-meter
...@n5ge.com wrote:
From: Tom H Childers n...@n5ge.com
Subject: Re: [Elecraft] 2-meter solid-state linear amplifiers with K3 2-meter
option
To: elecraft@mailman.qth.net List Elecraft@mailman.qth.net
Date: Sunday, January 20, 2013, 4:00 PM
If I were new to the use of solid state VHF/UHF amps I
linear amplifiers with K3 2-meter
option
To: elecraft@mailman.qth.net List Elecraft@mailman.qth.net
Date: Sunday, January 20, 2013, 4:00 PM
If I were new to the use of solid state VHF/UHF amps I would make
sure I bought amps with protection for SWR and overdrive mistakes.
I use TE Systems amps
I use an M2 18XXX 18 element. It's very long. I think it's 32 feet
or more long. When using it, it's like aiming a rifle. I like it
very much.
For omni directional horizontal polarization I use a pair of M2
stacked loops on both 144 and 432 MHz. They are all on the same mast
with the 70cm
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