The KC1 Keyer/Displayless Frequency Counter kit, designed and programmed by
N6KR, is the perfect accessory for any QRP rig. This micro-miniature unit
provides an Iambic keyer with message memory AND a Morse-code-output,
universal frequency counter that reports your operating frequency to +/-
The heart of the KC1 is a single chip, 18-pin microprocessor. The PC board
is quite small--about 0.8" tall by 2.5" wide--and will work with the NorCal
40, 40A, and Sierra, as well as nearly any other QRP rig. Total current
drain of the KC1 module is only 4mA, in keeping with the low-current
philosophy of the Wilderness Radio product line.
To simplify installation of the KC1, the Wilderness NorCal 40A and Sierra
transceivers provide convenient access to all of the connection points
needed. Also, the physical layout of the controls on the KC1 is compatible
with both rigs. (There may be a special KC1-compatible front panel
available for the '40A; contact Wilderness for more info.) The manual
provides installation details for nearly all popular QRP rigs, including
those from Heathkit, MJF, OHR, Small Wonders Labs, as well as rigs that
have been published in QST or the ARRL Handbook.
Specifications of the KC1
* 7 to 50WPM keyer w/the two most popular Iambic keying modes
* multiple variable length message buffers, with a total of 50
characters of message memory and a word-repeat macro to save memory
* user-settable weight and QSK delay
* optional sidetone pitch (different from frequency/command mode pitch)
The frequency counter does not use a display. Instead, you press a button
on the front panel to hear the frequency as three digits in Morse code.
For example, if your operating frequency is 7.132MHz, you'll hear "132".
The rig is not keyed when reporting the frequency; the KC1 generates an
audio tone that is fed directly to the A.F. amplifier.
Another feature of the counter is frequency search. If you press and hold
the FREQ button a bit longer, you are prompted with an 'F', at which point
you can enter a frequency to search for. As you turn the VFO knob, the KC1
alerts you when you reach approximately the desired frequency.
The KC1 supports multiband rigs, too. You can program in up to four
different VFO offsets, then use two pins on the board as band selection
inputs. This is useful on rigs that cover both 80 and 40 meters, for
example: you'll hear "000" as the band edge on 40 meters, and "500" as the
band edge on 80 meters.
The KC1 also has a command mode, in which you can program the VFO offsets,
keying weight, frequency reporting speed, and many other parameters. You
use the keyer paddle to communicate with the KC1 in command mode, and the
rig is not keyed--only an audio output is generated in this mode.
The KC1 has a handkey input (for use in keying the rig and optional
sidetone only--not for entering commands). It also has a user-definable
logic-level control output. The 'A' command toggles this pin from ON
(logic 1) to OFF (logic 0). You could use this to turn on a sharp CW
filter, panel light, or anything else controllable with a digital signal.
In effect, it gives you an extra panel switch.
The KC1 is priced at $45.00 plus $6 shipping US/Canada/Mexico, $8
DX. The kit includes all components, controls, high-quality PC
board, and detailed assembly and installation manual.
Missouri residents must add your local state sales tax.
Please make out checks to Wilderness Radio.
need your name, call, address,
phone number, e-mail address.
Send U.S. funds only (checks drawn on US banks,
or an international money order) to:
P.O. Box 3422
Joplin, MO 64803-3422