Elecraft K1 - Manual (Page 81)

LOW-
PASS
FILTERS
POWER
AMP
(5W)
BAND-
PASS
FILTERS
T-R
Appendix C K1 BLOCK DIAGRAM
W. Burdick/E. Swartz Rev. A 8-16-00
RCV
ATTEN.
RCV
MIXER
BUFFER DRIVER
XMIT
MIXER AGC
PREMIX
T-R
T-R
PROD.
DETECTOR
Common Transmit Receive
KEY
VFO
3.085 - 2.935
AF AMP
DISPLAY
AND
CONTROLS
CRYSTAL
FILTER
A.F.
PREAMP
MCU
BAND-
PASS
FILTERS
XMIT
ATTEN.
4.915 MHz
BFO
4.915 MHz
15.000 MHz
(40 m)
*
*
*
*
*
On Filter
PC Board
11.915 - 12.065 MHz (40 m)
4.915 MHz