[Elecraft] KX3-2M module?

[Wayne Burdick]

Phase noise is quite low on 2 meters, since the LO for 2 meters is derived directly from the HF-6 meter synthesizer. We'll post measurements on this soon.

The 2-meter module can be used on CW, SSB, and some data modes once the temperature compensation is applied. It is not just an FM/AM unit.

73,
Wayne
N6KR


On Apr 8, 2014, at 2:36 PM, "Dave" <dave at g0dja.co.uk> wrote:

> That sounds OK, at first glance Wayne,
> 
> But, what about the phase noise of the LO?  You made a thing about limiting these on HF, but on VHF and UHF it is equally important, if not more so given that band and even sky noise will be a lot lower than on the HF bands.
> 
> Is the 2M module really just an FM unit, or something that we who use narrowband modes, like CW and PSK31 would only just put up with and is really only going to be of any real use to FM (and/or AM) operators?
> 
> Dave
> 
> ----- Original Message ----- From: "Wayne Burdick" <n6kr at elecraft.com>
> To: "Oliver Dröse" <droese at necg.de>
> Cc: <elecraft at mailman.qth.net>
> Sent: Tuesday, April 08, 2014 8:56 PM
> Subject: Re: [Elecraft] KX3-2M module?
> 
> 
> Hi Oliver,
> 
> Frequency corrections due to temperature compensation can occur as often as once per second, though they happen less often during steady-state receive or transmit. We're limited by synthesizer step size to corrections of about +/- 3 Hz at 2 m.
> 
> 73,
> Wayne
> N6KR