Stan, you asked a good question-- one I asked about some time ago.
When I worked in the aerospace industry, I designed and used analog
and digital filters for measurement applications. Most textbook design
formulas and procedures are based on 3 dB bandwidths, although sometimes
our measurement
W5EWA wrote:
So is the information in the manual just the easy way to set it up,
and you can actually put them in whatever slots you want?
From reading the manual I understood that they had to be in decending order
starting from FL1, and the filters in both receivers had to match for
Hi folks,
I’m trying to configure the K3 receiver for diversity receive. I’m
populating the roofing filter slots in both receivers with matched filters, and
the question came up: When the K3 automatically selects the correct roofing
filter to match DSP filter bandwidth, does the
Roofing filters are selected by either of two ways. One is by directly
selecting FLx on the K3 front panel. The other is by changing the DSP
bandwidth via WIDTH, LO CUT or HIGH CUT. When the DSP bandwidth is
decreased to the crystal filter bandwidth, then that roofer is selected.
(Or, when the
bill4570 wrote:
In other words; when I use the “width” control, and decrease DSP
bandwidth from 3.0 Khz to 2.0 Khz on the front panel, the K3 switches
from the 2.8 Khz roofing filter located in FL3 to the 2.1 Khz roofing
filter located in FL4. With the sub-receiver on, and in
Bill, it's simpler than what you're looking for. You can put your
widest filter in FL1 and install them from there in descending
bandwidth. Use the K3 utility to set up the filters, much easier than
doing it with the config menu. The radio automatically switches in
the matching filter that
H... Ed, I almost tried using the built in
translator in Outlook...but then I recognized some of those words, like
is and the. :-() It almost let the smoke out of my head.
Seriously though, I don't understand the filter setup
technicalities. I can get through
.
Stan Rife
W5EWA
-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Guy Olinger K2AV
Sent: Monday, December 21, 2009 8:06 PM
To: bill4...@comcast.net
Cc: elecraft@mailman.qth.net
Subject: Re: [Elecraft] KRX3 roofing filter
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