[Elecraft] K4 LF & MF, K4 EXREF?

[Peter Hall]

Wayne

One really cool optional setting would be a double-frequency output on LF/MF at ~ 0 dBm level.  That would allow the K4 to drive directly some of the common push-pull class D power amp designs which require, for example, 950 kHz drive for a 475 kHz output.

73, Peter. 



-----Original Message-----
From: elecraft-bounces at mailman.qth.net <elecraft-bounces at mailman.qth.net> On Behalf Of Wayne Burdick
Sent: Saturday, 4 January 2020 12:54 AM
To: gliderboy1955 at yahoo.com
Cc: Elecraft Reflector <elecraft at mailman.qth.net>
Subject: Re: [Elecraft] K4 LF & MF, K4 EXREF?


> On Jan 3, 2020, at 7:22 AM, eric norris via Elecraft <elecraft at mailman.qth.net> wrote:
> 
> Will the K4 transmit at 136 or 472 kHz,

Yes.


> and if so at what power level and through which antenna port?

Tentatively, up to ~5 dBm, using XVTR OUT only.


>  If so, at first ship or in the future?

Probably first ship.


> The K4 brochure shows an empty hole for XREF, will this be available at first ship or in the future, and will it require an option board?  

Supplied.

Wayne
N6KR


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