TM 11-1212: Echo Box TS-207/UP | T.REX ARMS Field Manual Vault

TM 11-1212 Echo Box TS-207/UP

TM 11-1212

Echo Box TS-207/UP

Army · TM · Dec 1944 · 41 pages

About

PART ONE INTRODUCTION 1. GENERAL. a. Purpose. The echo box (fig. 1) is a resonant-cavity device designed to simplify the tuning and checking of radar equipment as follows: (1) It provides an artificial or "phantom" target which may be used in tuning the receiver lo the transmitter if no real targets are available. (2) It provides a clear, steady echo of known characteristics when such an echo is not obtainable from near-by ground targets. b. Uses. The- echo box may be used to perform a daily check on the same radar set to insure prompt discovery of any reduction in perform ance; but, in general, it cannot be used to make comparative measure ments between the performances of two or more radar sets. The echo box, with its associated equipment, provides the following: (1) A means of tuning the radar equipment. (2) An over-all radio-frequency (r-f) performance check.

DesignationTM 11-1212

EditionDec 1944

StatusSuperseded

Pages41

FunctionComms Signal

CollectionHistoric

Public domain (U.S. Government work)