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OWNERS MANUAL
     SR-440/SR-490 Owners Manual

RADIO MODIFICATIONS
      Frequency Mod

NOTES:
      Use the SR-440 Schematics etc for Service Info

Mic Wiring

Stock
1-Shield  (ground)
2-Yellow (audio)
3-Red     (transmit)
4-White  (receive)

Astatic
1-Shield & Blue
2-White
3-Red
4-Black
Yellow NC

Turner
1-Shield & Red
2-White
3-Blue
4-Black
Yellow NC

Sadelta
1-Shield
2-White
3-Brown
4-Green