The K2 manual on page 6 states that "Other CW and SSB fixed crystal
filter
options may be available." It would be nice to have more fixed
crystal filter
options available. I would like to be able to add a 1.8 KHz fixed
crystal
filter. Yes, the variable CW filter can be set to that bandwidth,
but it has
considerable ripple at 1.8 KHz.
OK, yeah, the ripple is pretty bad. Sounds weird but, you know, it
seems to have the ripple set just right to really pull a voice out of
the mush. That ripply 1.8KHz filter is amazing! OTOH, the SSB filter
is really nice and when you crank the variable filter down to 1KHz or
less it is quite nice too.
The noise blanker and VOX could be greatly improved. In the past
there were
discussions that a high performance noise blanker could be
developed. The
downside was that it would use mostly SMD components and not be in
step with
the through-hole design philosophy of the K2. Most people were
willing to
accept the deviation from the philosophy for the added performance.
There are a lot of people building SMD stuff. The SoftRock boards have
a lot of people doing SMD work. I had a workshop at the school for the
kids to learn to do SMD soldering. They like it more than through-
hole. We are talking 5th-graders here. If they can do it, you can too.
I now have 5 SoftRock V6.2 RxTx 80/40 RxTx boards and 5 SoftRock Lite
V6.2 40M boards in various stages of construction in the classroom.
Flatter 160 meter bandpass filter characteristics, less harmonics in
the
sidetone, or built in digital mode interfaces are more examples.
Is the sidetone really an issue?
Also many of us have done considerable mods on our K2's, but we are
limited by
the firmware. With active firmware development more mods could be
supported.
I think this is a key point. Open the K2 firmware for others to do
development on it would be a great thing.
Brian Lloyd
Granite Bay Montessori School 9330 Sierra College Bl
brian AT gbmontessori DOT com Roseville, CA 95661
+1.916.367.2131 (voice) +1.791.912.8170 (fax)
PGP key ID: 12095C52A32A1B6C
PGP key fingerprint: 3B1D BA11 4913 3254 B6E0 CC09 1209 5C52 A32A 1B6C
Brian Lloyd
Granite Bay Montessori School 9330 Sierra College Bl
brian AT gbmontessori DOT com Roseville, CA 95661
+1.916.367.2131 (voice) +1.791.912.8170 (fax)
PGP key ID: 12095C52A32A1B6C
PGP key fingerprint: 3B1D BA11 4913 3254 B6E0 CC09 1209 5C52 A32A 1B6C
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