Ramsey Electronics SR2 SR-2 Block Diagram

SR2 – 9

Antenna

RF Input

Filtering

Mixer

Inte rm ediate

Frequency

Filter

Amp

Inte rm ediate

Frequency

Filter

Audio

(Speaker)

SR-2 Block Diagram

Local

Oscillator

AGC

Demod

Signal

Strength

LED

Automatic Gain Control

Receive Signal

Strength Indicator

C1,C2,C3

L1,L2

T3,D3,Q3

C15,C16

R21

T2 D1 U2, J2

U1:A

RSSI

U1:B

Contents

Main Ramsey Electronics Model No. SR2 4-19.5 MHz SHORTWAVE RADIO Page 4-19.5MHz SHORTWAVE RADIO Ramsey Publication No. MSR2 Manual Price Only: $5.00 KIT ASSEMBLY AND INSTRUCTION MANUAL FOR Page Page Page Page SR2 9 SR-2 Block Diagram Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page SR2 27 The Ramsey Kit Warranty