Radio Navigation Equipment - Signalspaning.se

Test Oscillator I-173,specifically designed for
pre-flight checking of localizer .receivers, provides radio
frequency oscillation modulated by 90 and 150 cycle spark
gap and radiates a signal for checking the receiver under
test Indicator I-101, a component of the localizer receiver
installation, indicates operation by right or left movement
of the vertical needle.
This oscillator is mounted within a wooden carrying
case which also provides space for the two Batteries
BA-35 required to power it, and a two position toggle switch
on the top of the case provides a choice of the 90 or 150
cycle modulation.
LASSFI[P
Army Supply Program requirements as of 22
January 1945 were4576for the calendar year 1944 and 253
for 1945.
POWER SOURCE ' 2 BATTERIES BA-35
1. 5 VOLTS
POWER OUTPUT RF CARRIER UNCALIBRATED
AND MODULATED AT 90 OR
150 CYCLES
FREQUENCY RANGE 108.3-110.3 MC
TYPE OF SIGNAL MODULATED
TEST OSCILLATOR I-173 TOTAL WEIGHT 9 LBS.
Component
Test Set
Nay 1945
Nomenclature
1-173
Size
12" x 4" x 7"
I-173
Weight
9 Lbs.