The issue could be due to 2 factors: AF distortion and AGC
properties. K2 has a very sweet AGC. K3 had a very high AF distortion
level that was mitigated by a series of upgrades ( at least choke and
DSP board). If you read old messages, there is a message by a Russian
who looked at initial IMD
Those changes (or an alternate) were included with the updated K3 DSP board.
They are present in all K3s sine the release of the DSP board update.
73,
Don W3FPR
On 6/27/2016 10:19 AM, Ignacy wrote:
If you
read old messages, there is a message by a Russian who looked at initial IMD
level
I also feel that K2 is easier to listen to under average conditions than K3.
My K3 has the DSP board updated.
The issue could be due to 2 factors: AF distortion and AGC properties. K2
has a very sweet AGC. K3 had a very high AF distortion level that was
mitigated by a series of upgrades ( at
Ted,
I have a fully-developed K2 #380) including
KPA100, KAT100, KDSP2, etc. I've even added the
3rd party MA Board and the Rework eliminator
(together). I also did a full update of everything
in 2014 (ROMs, some updates I'd not done when last
I worked on the K2 in 2004 or so, etc.; it was
Can't answer your second question about the fans, but I initially
thought that my K2 "just sounded 'nicer'" than my K3. It's not a huge
difference, and I'm fairly deaf anyway, so I don't have a definitive,
iron-clad answer but:
1. I usually use lightweight headphones [single narrow metal
Ted,
You would find the K3 RX EQ to be beneficial to your ears.
The IF filtering in the K2 causes the high frequency to roll off, but
the stock K3 has a flatter response.
If you have an older K3, the DSP board exchange or the LPF added to the
DSP board will help by rolling off the high
K2s audio IS sweet sounding, isnt it? :-)(Not meant as a dig at the
K3; in my - ok, admitted somewhat limited - experience, Im not sure
Ive ever heard an SDR receiver having audio that matched that of a good
analogue receiver, K2, Drake R4B, etc., notwithstanding any of the
tweaks allowed by
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