[Elecraft] K3: KRX3 question

[Eric Swartz WA6HHQ - Elecraft]

H Tom,

We will match the 5 pole filters (to within 40 Hz) on request. If your 
filters are already that close you are in good shape. We can't guarantee 
a good enough yield on filter offsets to get closer than that, though 
most will be closer. Fortunately 40 Hz is more than adequate as you can 
set the K3 menu offsets for the two filters the same at the mean between 
them and both will be within 20 Hz or less of their ideal center.

The $30 option is per matched set (not per filter) and will be on the 
web order form next week. (We're officially on national holiday today 
:-) We just put it into the in-house ordering system yesterday. This 
applies to either matching two of the same bandwidth filter at time of 
shipment or matching a second same b/w filter to one you already have in 
your radio.

For everyone else, if you are not planning on doing 2 receiver, 2 
antenna, diversity reception where the frequency of the sub needs to be 
matched to withing a Hz of the main, this is not necessary.

73, Eric  WA6HHQ

_..._



Tom Whiteside wrote:
> I note in the new KRX3 manual the comment that diversity reception may be enhanced by using filters with matched offsets for the main and sub-receivers.    I'm a 160M nut and this is certainly an important point to me...   I have these filterson backorder:
>
> KFL3A-200        2     K3 200 Hz, 5 pole filter
> KFL3A-500        2     K3 500 Hz, 5 pole filter
>
> I'm wondering if Elecraft has plans for shipping these as matched sets or if I should scramble to change my order for 8 pole filters which should not need the offset.    Heads up and anyone know the answer?
>
> Tom N5TW
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