[Elecraft] New K3 user... Can't figure out how to set up and use sub receiver

[Dick Dievendorff]

One possible gotcha is that the sub receiver is an option on the K3, and you
need to set a configuration menu item to say that it is installed. The
process is mentioned in the KRX3 manual and at the end of the K3 manual
where the various menu items are described.

Hold the CONFIG button (the button is labeled "Menu") located near the top
left of the front panel.

Rotate VFO B until you see "KRX3" in the bottom line of the LCD screen.
Rotate VFO A to Ant = ATU or Ant = bnc depending on your use of a 2nd
antenna (mine says ANT = ATU).

Leave the menu  (by tapping the MENU button again), then turn on the SUB by
tapping the SUB button on the bottom right of VFO A. the "SUB" icon
(surrounded by a box) should appear beneath the two VFO frequencies on the
LCD screen.

Adjust the main and sub receiver volumes with the concentric RF and AF gain
knobs.

You can decide whether to hear the sub and main mixed into both headphones
by the L - MIX - R menu item, mine is set to A b so that I hear the main and
sub receivers simultaneously, one in each ear.  

Other possible problems are that the sub receiver may be switched to a
different antenna, to check this, HOLD BSET (to the top right of the LCD
screen), then set the ANT to the appropriate antenna for VFO B and make sure
that the RX ANT is as you expect it to be. 

73 de Dick, K6KR



-----Original Message-----
From: elecraft-bounces at mailman.qth.net <elecraft-bounces at mailman.qth.net> On
Behalf Of Jim Brown
Sent: Sunday, June 20, 2021 12:06
To: elecraft at mailman.qth.net
Subject: Re: [Elecraft] New K3 user... Can't figure out how to set up and
use sub receiver

On 6/20/2021 11:31 AM, Richard Isaacs via Elecraft wrote:
> Before using Elecraft, I used a Yaesu Ft 1000MP Mark-V Field and it 
> was a mere touch of a button to use the sub receiver. I have scoured 
> Pages 37/38 and still have not come up with a way to individually use the
2 receivers.

Gee, it's trivially easy. Push the SUB button to turn it on. With headphones
set for stereo, you'll hear it in your right ear, with the main RX in your
left ear. Once it's on, a long push on the SUB button puts you in Diversity
mode, for which you need a second antenna and an input for it.

Perhaps study of the rest of manual might be a good thing. Over the years,
I've owned ICOM, Yaesu, an Ten Tec rigs, and their user interfaces have all
differed radically from each other. The Elecraft UI is, by far, the best of
them all, but you have to RTFM to understand it.

73, Jim K9YC


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