Re: Adding a low noise preamp into the receive line of the internal 2M transverter

[Charlie T, K3ICH]

I agree.  Any in-the-shack pre-amp ahead of the K3's 2M transverter is a waste of time.
Unless of course, you just want to see your S-meter read higher and don't care that you've completely destroyed the dynamic range of the system.

The best way to improve on this is by installing a mast-mounted pre-amp which will over-come the inevitable feed-line loss.
As stated, the 2nd best way is to use a lower loss feed-line, but unless you're now using RG-58, the low-loss stuff might be more expensive than the remote pre-amp depending on the length you need.

73, Charlie k3ICH






-----Original Message-----
From: [hidden email] [mailto:[hidden email]] On Behalf Of Peter Torry via Elecraft
Sent: Saturday, February 24, 2018 12:45 PM
To: [hidden email]
Subject: Re: [Elecraft] Adding a low noise preamp into the receive line of the internal 2M trnsverter





Howard,

Adding an internal preamp is not a trivial task as it would mean some surgery on the transverter board.

What makes you think that you need a preamp?   The sensitivity of the transverter is more than adequate for all normal use and any spare funds should be put into  new low loss feeder and better antennas.  If when all that is up and running you still require more sensitivity then a mast head preamp is the only way but caution is raised over using one of high gain as it is a balancing act between sensitivity and strong signal handling.

Good luck with improving your system.

73

Peter

G3SMT



On 24/02/2018 12:42, Howard Sherer wrote:

> Is there an easy way to add a pre amp into the receive line on the
> internal
> K3 2M transverter?
>
>
> Howard Sherer AE3T
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