Jim,
The IF takeoff point in the K3 is right after the 8.215mHz mixer, so at
that point, it has a very wide bandwidth.
The K3 filtering is after that IF takeoff point, so any filtering in the
K3 will not affect that bandwidth.
I don't know how much wider than 200kHz the IF takeoff might be.
2
HiIf you connect an sdrplay to the if output you can see over 2mhz bandwidth.
73 Tom
Sent from my Samsung Galaxy smartphone.
Original message From: Don Wilhelm
Date: 2017-12-25 12:31 PM (GMT-05:00) To: Jim Miller ,
Elecraft@mailman.qth.net Subject: Re: [Elecraft] K3s IF
: Jim Miller , Elecraft@mailman.qth.net
Subject: Re: [Elecraft] K3s IF bandwidth?
Jim,
The IF takeoff point in the K3 is right after the 8.215mHz mixer, so at
that point, it has a very wide bandwidth.
The K3 filtering is after that IF takeoff point, so any filtering in the
K3 will not affect that
Hi all and Merry Christmas,
Well, the ham band specific HF filters are probably significantly narrower
than 2MHz, tailored to the actual width of the band in question. I don't
know if there is a way to tell the K3(S) to use a general coverage filter,
if installed, even if inside a ham band. That w
I could be wrong, but I thought they were low pass filters, not band
pass. I think each filter even covers more than one band if they are
within an octave or something like that.
Somebody please correct me if I'm wrong.
Dave AB7E
On 12/25/2017 11:10 AM, ab2tc wrote:
Hi all and Merry Ch
Hi again,
Heavens no, they are definitely bandpass filters, tailored to each ham band.
I think I have seen a plot of their responses somewhere, but can't remember
where. Each filter covers 2 bands with a relay to choose which one of the
two.
AB2TC - Knut
David Gilbert wrote
> I could be wrong,
Yes, they are bandpass filters, to reject the image 16 MHz from the
desired frequency, among other things. There are, of course, also low
pass filters, to reduce transmitted harmonics.
73,
Scott K9MA
On 12/25/2017 16:27, ab2tc wrote:
Hi again,
Heavens no, they are definitely bandpass filter
It's as wide as the bandwidth of the BPF ahead of the 1st mixer. There
are several BPF's for the various bands and their BW no doubt varies,
but is likely much larger than 200 KHz.
73,
Fred ["Skip"] K6DGW
Sparks NV DM09dn
Washoe County
On 12/25/2017 9:17 AM, Jim Miller wrote:
The P3 display
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