Gary Smith wrote:
I am wondering how I, without all those varieties of test gear can
determine if indeed there is a significant offset that exists with
the 8 pole filters in my K3 and if it exists to know how much it + or
- it is.
Feed the K3's audio into your pc's sound card and
I am finishing up my K3/100 kit (all 8 pole roofing filters, no sub rcvr), and
already looking over the fence.
Am I correct in my understanding that for diversity reception with the KRX3,
and using all 8 pole roofing filters (same 8 pole BW in same slots for main and
sub boards), that
Walter V. Gilles wrote:
Am I correct in my understanding that for diversity reception with the
KRX3, and using all 8 pole roofing filters (same 8 pole BW in same slots
for main and sub boards), that matching of filters is unnecessary due to
the inherent 8 pole filter zero offset?
...@mailman.qth.net] On Behalf Of Walter V. Gilles
Sent: Saturday, January 31, 2009 12:51 PM
To: elecraft@mailman.qth.net
Subject: [Elecraft] K3 - Diversity Reception, Matched Roofing Filters
I am finishing up my K3/100 kit (all 8 pole roofing filters, no sub rcvr),
and already looking over
Walter,
Whatever the absolute offset required for the 8 pole filters, it should
not deter your building. The offsets are entered into the menu after
the build is complete.
While the 8 pole filters have a 'nominal offset' of zero, you may find
that to be perfect for diversity reception that
While the 8 pole filters have a 'nominal offset' of zero, you may find
that to be perfect for diversity reception that you should find the
absolute offset difference between the 2 filters of the same width and
use half the difference as the offset. With the 8 pole filters, any
offset
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