Elecraft

K3 sub rx audio, etc.

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alsopb

K3 sub rx audio, etc.

Is there a mono option? That is where the sub and main rx audio appears in both ears?

If no antenna tuner, must one install the BNC connector? I don't see ever needing to connect the sub rx antenna to any but the transmit antenna. The firmware makes one choose either BNC or antenna tuner. There is no choice for none.

Brian/K3KO

N5GE

Re: K3 sub rx audio, etc.

On Thu, 17 Jul 2008 11:11:35 -0700 (PDT), alsopb <[hidden email]> wrote:

>
>Is there a mono option? That is where the sub and main rx audio appears in
>both ears?
>
>If no antenna tuner, must one install the BNC connector? I don't see ever
>needing to connect the sub rx antenna to any but the transmit antenna. The
>firmware makes one choose either BNC or antenna tuner. There is no choice
>for none.
>
>Brian/K3KO

Amateur Radio Operator N5GE

KK7P

Re: K3 sub rx audio, etc.

>> If no antenna tuner, must one install the BNC connector? I don't see ever
>> needing to connect the sub rx antenna to any but the transmit antenna. The
>> firmware makes one choose either BNC or antenna tuner. There is no choice
>> for none.

This is for specifying the alternate antenna input for the KRX3. Not
selecting the alternate antenna input is "none".

I've found all sorts of uses for the BNC that I didn't envision when I
installed it. Since you don't have the KAT3, I encourage you to
seriously consider adding the BNC with the KRX3. It comes with the KRX3
and only costs another 30 minutes or so in the installation.

I had my KRX3 initially set up with the KAT3. Later in the development
and testing cycle the BNC cable became available, and I installed it.

I'm leaving it with the BNC!

73,

Lyle KK7P

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.k8dd.-2

Re: K3 sub rx audio, etc.

In reply to this post by N5GE

----- Original Message -----
From: "Tom Childers, N5GE" <[hidden email]>
To: <[hidden email]>
Sent: Thursday, July 17, 2008 3:21 PM
Subject: Re: [Elecraft] K3 sub rx audio, etc.

On Thu, 17 Jul 2008 11:11:35 -0700 (PDT), alsopb <[hidden email]> wrote:

>
>Is there a mono option? That is where the sub and main rx audio appears in
>both ears?
>
>If no antenna tuner, must one install the BNC connector? I don't see ever
>needing to connect the sub rx antenna to any but the transmit antenna.
>The
>firmware makes one choose either BNC or antenna tuner. There is no choice
>for none.
>
>Brian/K3KO

I'm confused. Isn't the antenna tuner connected to TX antenna? Are you
saying
you don't want to be able to distinguish between the second RX and the MAIN
RX?

Suppose I was working cross band and had it the way you want it. How would
I be
able to determine which band I was hearing? Or if I were to work split in a
pile up, how would I know if that carrier I hear was on top of the DX or on
his
listening frequency. That would really make it hard on the pileup police.

I really would like to know why you want to convert it to mono. No kidding.

Tom, N5GE - SWOT 3537 - Grid EM12jq

I'm not sure why you would want to select 'none' for the second RX antenna
.... You wouldn't hear much.
It appears the SUB RX can have the same antenna as the first RX or the BNC
below ANT 2 for a separate antenna.

We used to go to Zone 2 up on James Bay for CQ WW SSB with either a TenTec
Omni D or a Corsair (it was years ago) and on 40M we would TX around 7050
and listen 7050 & 7195 with the remote VFO. It mixed audio to mono
headphones. Didn't really care what freq the station was calling on - just
work them. Hopefully the EU & VE stations were on 7050 and the US stations
were on 195!

Some people might find left ear / right ear from main RX / sub RX ...... I
used to find that very distracting before I kind of became used to it.

And ..... ask me my opinion in person some time about my thoughts on pileup
police ..... About the same as DX nets ...... but that's not a topic for
here! :^}

73 Hank K8DD

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N5GE

Re: K3 sub rx audio, etc.

In reply to this post by KK7P

On Thu, 17 Jul 2008 12:32:20 -0700, Lyle Johnson <[hidden email]> wrote:

>>> If no antenna tuner, must one install the BNC connector? I don't see ever
>>> needing to connect the sub rx antenna to any but the transmit antenna. The
>>> firmware makes one choose either BNC or antenna tuner. There is no choice
>>> for none.
>
>This is for specifying the alternate antenna input for the KRX3. Not
>selecting the alternate antenna input is "none".
>
>I've found all sorts of uses for the BNC that I didn't envision when I
>installed it. Since you don't have the KAT3, I encourage you to
>seriously consider adding the BNC with the KRX3. It comes with the KRX3
>and only costs another 30 minutes or so in the installation.
>
>I had my KRX3 initially set up with the KAT3. Later in the development
>and testing cycle the BNC cable became available, and I installed it.
>
>I'm leaving it with the BNC!
>
>73,
>
>Lyle KK7P

[snip]

Me too, Kyle. I'm going with the BNC connector...

Tom, N5GE - SWOT 3537 - Grid EM12jq

"Those who would give up
Essential Liberty to
purchase a little Temporary
Safety deserve neither
Liberty nor Safety"

An excerpt from a letter
written in 1755 from the
Assembly to the Governor
of Pennsylvania.

Support the entire Constitution, not
just the parts you like.

http://www.n5ge.com
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Amateur Radio Operator N5GE

wayne burdick

Re: K3 sub rx audio, etc.

Administrator

In reply to this post by alsopb

Hi Brian,

> Is there a mono option? That is where the sub and main rx audio
> appears in both ears?

Not at present, but it's on the list.

>
> If no antenna tuner, must one install the BNC connector?

No. Use of the sub receiver's aux RF input is optional. We'll clarify
this in the assembly manual if necessary.

> I don't see ever needing to connect the sub rx antenna to any but the
> transmit antenna. The firmware makes one choose either BNC or
> antenna tuner. There is no choice for none.

Use "ANT=BNC" if you don't connect the sub's aux RF input to anything.

73,
Wayne
N6KR

---

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