K3 audio out

[Paul Clay-2]

Is there an easy way to tap the K3's audio before it's run thru the unit's audio bandpass filter? Via the IF out?
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[ab2tc]

Hi,

I am not sure exactly what you are trying to accomplish here, but I'll hop in with a response anyway. Connecting the IF out to another receiver, SDR or not, will bypass *all* filtering in the K3 except the RF filter, which is several 100 kHz wide. Useful for many things including spectrum displays and 2nd receivers. Many people do this.

Short of that, you are stuck with the K3's audio output which goes through an audio *lowpass* filter around 4.5kHz if I remember correctly but there is absolutely no useful energy above this frequency, just aliasing artifacts that you definitely don't want. So maybe you can give some more details on what you want to achieve.

AB2TC - Knut

PS. Using two different ways to read your posting (MARC and Nabble), both render your apostrophes as K3'. 39 is the correct ACII code for an apostrophe ('). How did you submit your posting and maybe some expert can offer some advice on why this is such a prevalent problem on the reflector and what to do to avoid them?

Paul Clay-2 wrote

Is there an easy way to tap the K3's audio before it's run thru the unit's audio bandpass filter? Via the IF out?
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[N5GE]

The sender is using an HTML email program.
' is the HTML equivalent of an apostrophe.

Since the Elecraft reflector doesn't read HTML, the apostrophe's are
decoded as ASCII text.

Amateure Radio Operator N5GE

On Mon, 3 Mar 2014 12:17:04 -0800 (PST), you wrote:

>Hi,
>
>I am not sure exactly what you are trying to accomplish here, but I'll hop
>in with a response anyway. Connecting the IF out to another receiver, SDR or
>not, will bypass *all* filtering in the K3 except the RF filter, which is
>several 100 kHz wide. Useful for many things including spectrum displays and
>2nd receivers. Many people do this.
>
>Short of that, you are stuck with the K3's audio output which goes through
>an audio *lowpass* filter around 4.5kHz if I remember correctly but there is
>absolutely no useful energy above this frequency, just aliasing artifacts
>that you definitely don't want. So maybe you can give some more details on
>what you want to achieve.
>
>AB2TC - Knut
>
>PS. Using two different ways to read your posting (MARC and Nabble), both
>render your apostrophes as K3'. 39 is the correct ACII code for an
>apostrophe ('). How did you submit your posting and maybe some expert can
>offer some advice on why this is such a prevalent problem on the reflector
>and what to do to avoid them?
>
>
>Paul Clay-2 wrote
>> Is there an easy way to tap the K3's audio before it's run thru
>> the unit's audio bandpass filter? Via the IF out?
>> ______________________________________________________________
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:
>
>> Elecraft@.qth
>
>>
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html

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