With some help from Wayne, I've been able to interface a
Wilderness KC1 to the 38S. I chose not to install the TiCK keyer
on my 38s.
I was able to get the KC1 to work by using a 47pf cap
for the VFO cap, and replacing the gain resistor (3.3K) in the
VFO signal pre-amp with a 1K for a little more gain. My
vfo tap is a single 22 ga. wire about 5 inches long, and it goes
to pin 7 of the VXO 602. I haven't checked the counter against my
good HF rig yet, so my counter set-up so far is O3A000 (direct
read, no offset).
I've connected the audio to the input of the AF/filter stage
(point 'A' on Ori's schematic, I believe) through a 470K resistor.
and the .01 bypass cap.
Since the sidetone of the rig is used for tuning, I'll probably
leave it alone and disable the sidetone on the KC1. I haven't
done anything with the mute, and it doesn't appear to be an
issue, despite the fact that the KC1 runs at 4MHZ and the 38S
uses a 12MHz in it's mixer.
b
. . . . . . - I own my own words - . . . . . .
Bill Acito
acito@asdg.enet.dec.com
|d|i|g|i|t|a|l| Digital Equipment Corporation Hudson, MA
W1PA qrp-ne qrp-l adv-rs arci norcal amsat-na arrl-life
[
QRP-L Archive |
]
[
1993 |
1994 |
1995 |
1996 |
1997 |
1998 |
1999 |
2000
]