[Elecraft] Sub-Rx Filters

[Lane]

Joe - How did you get the 200Hz filters for the K3S? I didn't see those as
options anymore, but wished they were.

On Sat, Aug 8, 2015 at 7:51 AM, Joe Subich, W4TV <lists at subich.com> wrote:

>
> When I assembled my K3, I ordered the filters as FM, 2.7, 1.8, 400,
>> and had the last slot open. For the K3S, I have (1) FM, (2) 2.8, and
>> (2) 400’s. So I have the following questions.
>>
> >
> > How will the filters be installed as a factory build?
>
> My guess is that the filters would be installed in the first two or
> three slots as they were in my original factory built K3.
>
> > If I have a say so, would it make sense to install it as such
> > (O = open)
> > Slot      1     2      3       4       5
> > Main     FM    2.8     O      400      O
> > Sub       O    2.8     O      400      O
>
> That is the way mine are done - the Sub RX has a second FM filter
> (I wanted the ability to use wide audio for SWLing with an Aux
> antenna) and the main TX has a 1500 Hz filter in slot 3 which I
> do not use and the 200 Hz filter in slot 5.
>
> If I were to do it again, there would be no changes except to replace
> the 1500 Hz filter with a 1800 or possibly a 2100 (that is my typical
> SSB bandwidth).  The FM filter it just fine for AM - both TX and RX.
>
> 73,
>
>   ... Joe, W4TV
>
>
>
> On 8/8/2015 12:59 AM, Lane wrote:
>
>> Hi,
>>
>> I have a K3 w/o a sub-receiver and continue to enjoy learning about the
>> hobby, and because of that, I’d like to start learning about all the
>> things
>> I can do w/ a sub-receiver. So I’ve ordered the new K3S-F. Seeing as I
>> have
>> several weeks to rethink my order before it ships, I’d like to better
>> understand the sub and filters. I also hear the sub is a pain to remove
>> and
>> wanted to get my filters right initially if possible.
>>
>> When I assembled my K3, I ordered the filters as FM, 2.7, 1.8, 400, and
>> had
>> the last slot open. For the K3S, I have (1) FM, (2) 2.8, and (2) 400’s. So
>> I have the following questions.
>>
>> How will the filters be installed as a factory build?
>>
>> If I have a say so, would it make sense to install it as such (O = open)
>> Slot      1       2       3       4       5
>> Main    FM   2.8     O      400    O
>> Sub       O    2.8     O      400    O
>>
>> By doing that, I leave the last slot open for 200Hz filters if they come
>> back, and slot 3 for something between 2.1 and above 400 if I can find a
>> good reason to fill them.
>>
>> My understanding of diversity reception is that I can receive two
>> different
>> frequencies and though used more for CW when working pile-ups, it’s not
>> something I’d likely use for FM, hence the single FM roofing filter. So I
>> was wondering about installing AM on the sub just so that I could have
>> that
>> as well.
>>
>> I'd be interested in knowing how you guys did it.
>>
>> Thanks,
>> ______________________________________________________________
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:Elecraft at mailman.qth.net
>>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft at mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to software.research.development at gmail.com
>