[K3] questions about using a sub-receiver

[Elecraft mailing list]

If/when I install a sub-receiver in my K3 [SN 6232] will I be able to
hear each receiver separately in each side of my stereo headphones? If
so, ok. If not, is there some way/work around to make this possible?

Is the DSP of the basic radio able to have two concurrent settings, one
for each of the receivers? Or, does each receiver have to share the same
settings?

The same question concerning crystal filters: can one receiver be using
its narrow filter while the other receiver uses a wide filter? Or, do
the filter selections track each other between the two receivers?

Thanks in advance for any and all responses. A good day to all.

...robert
--
Robert G Strickland, PhD ABPH - KE2WY
[hidden email]
Syracuse, New York, USA
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[Grant Youngman-2]

> On Mar 5, 2019, at 8:57 PM, Robert G Strickland via Elecraft <[hidden email]> wrote:
>
> If/when I install a sub-receiver in my K3 [SN 6232] will I be able to hear each receiver separately in each side of my stereo headphones? If so, ok. If not, is there some way/work around to make this possible?

Yes

>
> Is the DSP of the basic radio able to have two concurrent settings, one for each of the receivers? Or, does each receiver have to share the same settings?

The sub receiver is independent.  Sub and main do not have to match.

>
> The same question concerning crystal filters: can one receiver be using its narrow filter while the other receiver uses a wide filter? Or, do the filter selections track each other between the two receivers?
>

Yes

Grant NQ5T
K3 #2091 KX3 #8342

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[Grant Youngman-2]

Just to clarify.  The “yes” answers apply to the questions you posed, not the negative which immediately follows.

Grant NQ5T
K3 #2091 KX3 #8342

> On Mar 5, 2019, at 9:38 PM, Grant Youngman <[hidden email]> wrote:
>
>
>
>> On Mar 5, 2019, at 8:57 PM, Robert G Strickland via Elecraft <[hidden email]> wrote:
>>
>> If/when I install a sub-receiver in my K3 [SN 6232] will I be able to hear each receiver separately in each side of my stereo headphones? If so, ok. If not, is there some way/work around to make this possible?
>
> Yes
>
>>
>> Is the DSP of the basic radio able to have two concurrent settings, one for each of the receivers? Or, does each receiver have to share the same settings?
>
> The sub receiver is independent.  Sub and main do not have to match.
>
>>
>> The same question concerning crystal filters: can one receiver be using its narrow filter while the other receiver uses a wide filter? Or, do the filter selections track each other between the two receivers?
>>
>
> Yes
>
> Grant NQ5T
> K3 #2091 KX3 #8342
>

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[TJ Campie]

the You can consider the 2nd rx as a completely separate radio - unique
filters, unique dsp, etc  And yes, using the SUB function on the front
panel, you can select diversity receive (2nd rx is on the same freq as your
primary VFO, receiving with a different antenna) or normal SUB (2nd rx is
on 2nd vfo frequency on different antenna).  In both cases, the stereo
effect is used to put VFO B in the opposite earphone from VFO A.


73, W0EA
TJ
----
QRP ARCI #14612 | CW Ops #953 | SKCC #4593T
NAQCC #3768 | Flying Pigs QRP #2254
http://W0EA.us
*Because QRO is too easy (but sometimes required!)*
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[Cady, Fred-2]

Hi Robert,

I feel your pain.  The Main and Sub receivers are tremendously flexible and figuring it out lead me to write the first Elecraft K3 book.  The latest edition, "The Elecraft K3s and P3" might help you learn more, including how they both can work separately or together, including the mixing of audio A and B, which is very powerful.  You can find the hard copy version on the Elecraft web site and pdf version on www.lulu.com<http://www.lulu.com>.

73,

Fred KE7X


For all Elecraft books and "The Successful Ham Radio Operator's Handbook", see www.ke7x.com<http://www.ke7x.com>.


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