Operating instructions

RAOIO
REOEIVING
SET
AN/GRR.5
CHEST SET
GROUP
AI'I/GSA-6
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5.
Technicol
Chorocteristics of
Rodio Re-
ceiving Set
AN/GRR-5
Receivertype,-
--.,,
Superheterodyne.
Types
of signals
which
can be
received
--.'--.A-m,
c-w, or
m-c-w
(modulated
continuous
wave).
Frequency
range:
Band 1-- ------.1,5 mcto 2.7 mc.
Band 2
2.7 mc to 5 mc.
Band 3---
--
5 mc to 9.5
mc,
Band 4--
--------.9.5 mc to 18 mc.
Type of tuning Continuous, with
provision
for
presetting
detents for any
10 channel frequencies.
Number of tubes:
Receiver 8.
Po*'er supply--
4.
Intermediate
frequency
455
kc
(kilocycle).
Method
of
calibration--
Built-in crystal frequency
cali-
brator.
Calibration
points------ -
Every
200 kc.
Audio output:
High 90
mrv
(millirvatt).
Low----------
20 mr'v.
Distortion-------------.10
percent
or less for 70
mw
output,
measured at 5
mc
with 400-cycle, 30
percent
modulation.
Scnsitivity:
a-m.-------------
5 uv
(r.niclovolt)
or better
for
10 rnw
output, rvith a signal-
plus-noise
to
noise ratio
of
10
to
1.
2
T f,
e95-3
c-w
2 uv ol bettel foi'
10 m'"v
out-
put. uiLh
rt
sipral-plus-noise
to
noise latio of
10
to
1,
I-f selectivity:
6
db
(decibel)
down
- ------ 6.5
kc,
20
db down
-
13 kc.
40
db dorvn
20
kc.
60 db dorvn
,----
--28 kc.
Power
input:
For vehicular
operation:
6 volts'-
6.9 amperes,
41.4
watts.
12 volts
3.22 aurpeles,38.6 watts.
2.1 voÌts 2.óó arllperes, 61.2 watts.
For'field
opelation:
90
volts
(
2 Battery
BA_419
r'Lr
)
2? ma
(milliampere)
.
1.5 volts
(
1 Battery
BA-405/U) 350 ma.
For fixed instal-
lation:
115 volts ac,
50 or
60 cyc 455
rna,
52.4 watts.
Antenna
-- Mast Sections
113-116-A
(2
ea),
MS-117-4, and MS-
118-A
ol
an1'suitable
reeì
antenna.
Weight
of
receiver and
power
supply
in cabi-
net
{ì0.5
lb.
Weight
of accessories
.--
15.05 lb.
AGO 3134