Not a 100% safe way to tell so. A lot of OPs (myself included) let their
filters switch in earlier already. I.e. my 400 Hz 8 pole filter is switched
in at 500 Hz DSP bandwidth (exactly that is reflected in the filter setup in
K3 Utility) already so with Don's suggestion you would think it's a 5 pole
filter - not true. The most reliable way is certainly the checking the
filters themselves, i.e. hardware. Offset settings *might* be another way as
8 pole filters normally do not have an offset while 5 poles have. But even
that might not be 100% ... so take a look at the hardware and be sure what
you have. ;-)
73, Olli - DH8BQA
----- Original Message -----
From: "Don Wilhelm" <w3...@embarqmail.com>
To: "Mike Flowers" <mike.flow...@gmail.com>
Cc: <elecraft@mailman.qth.net>
Sent: Friday, June 21, 2013 10:50 PM
Subject: Re: [Elecraft] How to determine K3 filter type - 5-pole or 8-pole
Mike,
The K3 Utility configuration tab can tell you which filters are installed.
You can tell from the filter width whether it is an 8 pole or a 5 pole -
compare the installed widths with the filter listing on the Elecraft order
page (that page specifies 5 pole and 8 pole).
73,
Don W3FPR
On 6/21/2013 3:53 PM, Mike Flowers wrote:
Hi Gang,
I recently bought a used K3 which has filters installed in both the main
and sub receivers.
Is there an external way of determining if these filters are 5-pole or
8-pole?
Is the value of FLx FRQ for each filter a clue?
Thanks for your assistance!
*
73 de Mike, K6MKF
*
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