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Re: [IRCA] Elecraft K3 Receiver (not for LF use)
I've been interested in the K3 ever since first hearing about it. The full
manual and schematics can be downloaded. It can't be made to work below its
500kc minimum. In fact you have to buy an accessory board to make it tune
outside the ham bands, to start with. It is not a general coverage receive
radio in the sense of many modern ham transceivers have that, but a
single-conversion design optimized for extremely high performance in ham
bands. Any other coverage is of very secondary interest for this radio's
design.
But you could add an LF converter in front of the K3, operate the radio at
3.5 or 4Mc where most LF converters upconvert to, and use the K3 that way,
and obtain the full performance of the K3, assuming the LF converter had
similar high performance. But I don't see any real reason to get a K3 to use
except as a ham band radio. The use of the optional very narrow front end
roofing filters will only be useful for CW mode and where there are many
very strong signals present--such as ham band contests. There would be no
reason to use that to receive, for example, LF NDB's, which never have many
strong signals all crowded together.
There's also still a several month wait to get a K3, if you want one.
Steve AA7U
NE Oregon
----- Original Message -----
From: "Bob Coomler" <w6rjc@xxxxxxxxx>
To: "Mailing list for the International Radio Club of America"
<irca@xxxxxxxxxxxxxxxx>
Sent: Saturday, March 22, 2008 1:22 PM
Subject: Re: [IRCA] Receivers
Gil, please post back here whatever you find out about
the K3. I've tried contacting Elecraft about going
below 500 kHz, but have never received an answer.
Thanks!
Bob Coomler W6RJC
Cloverdale,CA
--- Gil Stacy <gilstacy@xxxxxxxxx> wrote:
I'll float a question on the Elecraft list. I've
built the K2 and kx1, but
so far have decided to pass on the K3. It has
limited coverage on the
bottom--500kHz-if memory serves correctly--so it
lacks the versatility of a
general coverage rx or the Icom 756 Pro III
transceiver. However, the folks
at Elecraft will do what it takes to make a great
product. They are the
gold standard of American Manufacturing, great
customer service and are
responsive to customer input.
73 Gil
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