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Appendix c b, 915mhz – Elecraft K2 Owner's Manual User Manual

Page 148

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LOW-PASS

FILTERS

POWER

AMP

(15W)

BAND-

PASS

FILTERS

T-R

CRYSTAL

FILTERS

Appendix C B

LOCK

D

IAGRAM

W. Burdick/E. Swartz Rev. D 1-9-04

ATTEN.

AND

PREAMP

RCV

MIXER

POST-
MIXER

AMP

BUFFER

DRIVER

XMIT

MIXER

I.F. AMP

T-R

T-R

NOISE

BLANKER

AGC

BAL.

MOD.

VCO

T-R

T-R

BFO

PROD.

DETECTOR

Common

Transmit

Receive

KEY

PLL

SYNTH.

AF AMP

MCU AND

SUPPORT
CIRCUITS

DISPLAY

AND CONTROLS

4.915MHz

4.915MHz

6 - 24MHz

Shaft Encoder

AUDIO

FILTER,