Radio Navigation Equipment - Signalspaning.se

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Radio Transmitting Equipment AN/CRN-4 is an
air transportable, low-powered radio homing equipment
for ground use in troop carrier operations. The equipment
is packaged in such a manner as to allow it to be carried
to the ground by either one or two paratroopers and
set up for operation in approximately 30 minutes. It is
capable of providing a signal for the homing of aircraft
equipped with radio compasses of the type SCR-269 or the
AN/ARN-7 over a range of 30 miles.
The tuning range is 1400 to 1750 kc. The set is
designed to permit simultaneous operation of eight beacons
within a 10-mile radius without interference between beacons.
Power is supplied by a special dry battery pack.
Radio Transmitting Equipment AN/CRN-4-A is
a modification of AN/CRN-4 in that a vibrator power supply
has been substituted for the dry battery pack, and a
vertical antenna mast which acts as an antenna, replacing
the two supporting masts and antenna assembly formerly
used.
Standard test equipment, including a frequency
meter, SCR-211, anda multimeter, TS-297/U, are the only
test equipments required for maintenance.
Army Supply Program requirements as of 30
November 1944 were 450 equipments for the calendar year
1944.
POWER INPUT SPECIAL DRY BATTER
PACK
FREQUENCY 1400 TO 1750 K
TYPE OF SIGNAL AUTOMATICALLY
KEYED CW TONE
MODULATED
RANGE 30 MILES
fir, At
U
Radio Set AN/CRN-4 dropped with pathfinder troops may
be set up in 30 minutes.
TUBE COMPLEMENT
NO. TYPE NO. TYPE
1 6V6GT/ G
Radio Trar mitting Equipment AN/CRN-4 was designed primarily to previde homing facilities for troop carrying
aircraft o-ierating behind enemy lines or under conditions of poor visibility.
May 9ig45
AN/ CRN-4