[Elecraft] KFL3C-400 offset?

Nr4c nr4c at widomaker.com
Sat Feb 23 23:57:04 EST 2019


I think Elecraft altered their filter array recently ( maybe 1-2 years) and maybe the order page hasn’t caught up. I believe they discontinued some and added some 6-pole filters. I think that is what you have. 

Sent from my iPhone
...nr4c. bill


> On Feb 23, 2019, at 3:36 PM, Carl Jón Denbow <n8vz at qth.com> wrote:
> 
> Bill, 
> 
> Thanks for your response.  This filter, unlike the others, is exposed and there are six crystal cans.  Does this mean it’s a five-pole?  I was sure I ordered an eight-pole filter?  When I do a search on the KFL3C-400 everything I see indicates it’s an eight-pole filter.  Are there two types of KFL3C-400 filters?  As you can see I’m still confused.
> 
> 73,  
> 
> Carl
> 
> Sent from my iPhone
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> Carl Jón Denbow, N8VZ
> 17 Coventry Lane
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>  
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>  
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> 
>> On Feb 23, 2019, at 2:41 PM, Nr4c <nr4c at widomaker.com> wrote:
>> 
>> Is your filter in a metal can. Eight pole filters used to be in a can. Five pole filters were exposed parts. If the later, count the crystal cans. Should be 5, 6, or 8. 
>> 
>> Sent from my iPhone
>> ...nr4c. bill
>> 
>> 
>>> On Feb 23, 2019, at 1:44 PM, Carl-N8VZ <n8vz at qth.com> wrote:
>>> 
>>> I’m assembling a KRX3 second receiver for my K3.  One of the filters I’m
>>> installing is a KFL3C-400.  When I ordered it, the order form said it was an
>>> 8-pole filter.  I purposely only ordered 8-pole filters.  It was my
>>> understanding that 8-pole filters have no offsets to worry about.  Why,
>>> then, does the KFL3C-400 have an offset (-0.79) listed on the filter when
>>> the others do not?  I’m confused.  Can someone clarify this for me?  73 de
>>> Carl N8VZ
>>> 
>>> 
>>> 
>>> --
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