RR/E-11 RECEIVER

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP78-03330A000600460002-9
• Release Decision: RIPPUB
• Original Classification: K
• Document Page Count: 8
• Document Creation Date: December 27, 2016
• Document Release Date: May 29, 2014
• Sequence Number: 2
• Content Type: REPORT

Declassified in Part - Sanitized Copy Approved for Release
2014/05/29: CIA-RDP78-03330A000600460002-9
STAT
Declassified in Part - Sanitized Copy Approved for Release
2014/05/29: CIA-RDP78-03330A000600460002-9
Declassified in Part - Sanitized Copy Approved for Release
2014/05/29: CIA-RDP78-03330A000600460002-9
A. INTRODUCTION
1. The RR/E-11 is a small transistorized communications
receiver capable of receiving voice, Morse code, and other radio
signals within a frequency range of 3000 to 12000 kilocycles.
Operation of the receiver is simple and tuning of any frequency
within the frequency range is performed merely by rotating the
tuning knob. The casing is constructed for rough handling, and
although the receiver is not completely waterproof, it is water
resistant.
2. The receiver is intended for use in mild or warm climates.
When the temperature is either cold or very hot, the receiver dial
reading may be off more than 25 kilocycles.
3. The RR/E-11 can be powered from only a 6 or a 12 volt
direct current (battery) source. Do not attempt to connect the
receiver directly to en alternating current (mains) power source.
B. CONNECTION TO A COMPATIBLE TRANSMITTER
You may be provided with a transmitter that has a nine-pin
receiver socket. If an, plug the RR/E-11 directly into the
receiver socket on the transmitter. After power, ground, and
antenna have been connected to the transmitter, the transmitter
will supply these connections to the receiver. Headphones are
plugged to phones terminals (1).
C. SEPARATE CONNECTION
1. When the receiver is not plugged directly to a compatible
transmitter, separate connections must be made for the power,
ground, and antenna.
2. To Connect Power.
a. If you are provided with the small dry battery (6 volt)
shown as figure 10 in the illustration, plug the battery directly
to the receiver.
b. If you desire to power the receiver from any 12 volt
battery, make the following connections: first plug power connec-
tor 11 to receiver plug 2; then connect the alligator clip of the
red wire to the positive (i.) battery terminal, and the alligator
clip of the black wire to the negative (-) battery terminal.
Declassified in Part - Sanitized Copy Approved for Release
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Declassified in Part - Sanitized Copy Approved for Release
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C. To operate from a 6 volt battery such as a storage
battery, a 6 volt power connector (similar in appearance to connec-
tor 11) is required. /f you ere not provided with a 6 volt power
connector, wiring changes may be made to connector U. To the left
of plug 2 is a pin number diagram describing input connections to
the receiver. Unless you are instructed otherwise, power connector
11 is wired for 12 volt operation. To change the connection of
connector 11 for 6 volt operation, proceed as follows:
(a). Obtain a soldering iron, solder, and screw driver.
(b). Remove the two screws and nuts from the top of the
nine-pin plug of connector 11. Loosen the two bolts of the cable
clamp. Poll the plug from the metal enclosure.
(c). Unsolder and remove the jumper wire from connec-
tions 5 and 6. Remove the red wire from connection 8 and solder the
wire to connection 6.
(d). Power connector 11 will now operate the receiver
from a 6 volt battery. Plug the connector to the receiver and
connect the alligator clips to the battery as described in paragraph
2b above.
3. To Connect the Antenna and Ground. The antenna lead-in is
connected to terminal 4 and the ground lead-in to terminal 5. After
removing a small bit of insulation from the wire, depress the top of
the terminal post and insert the wire in the small hole directly
underneath the post. Refer to separate instructions regarding the
erection of an antenna and installation of a ground.
4. To Connect the Headphones. Plug the headphones to phone
terminals (1).
D. DESCRIPTION OF RR/E-11 CONTROLS AND SWITCHES
Refer to the illustration.
1. Power ON-OFF and ON-AGC Switch (3). This switch turns the
power to the receiver on and off, and also turns on the receiver
automatic gain. When the switch is turned to the ON position the
receiver has power and will operate, but the AGC is OFF. When the
switch is turned to the ON-AGC position, the receiver has power and
the AOC circuit is also turned on.
2. Volume Control (6). This control reculates the volume level
of the received signal. Rotate the control in a clockwise direction
to increase the volume.
Declassified in Part - Sanitized Copy Approved for Release
2014/05/29: CIA-RDP78-03330A000600460002-9
Declassified in Part - Sanitized Copy Approved for Release
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tone
modulated signals.
4. Tuning Dial (8) and Tuning Knob (9). The tuning knob is
rotated to read the frequency as read on the tuning dial in kilo-
cycles. Shown beneath the window, the printed numbers 3-12 IC
mean that the frequency range is from 3000 to 12000 KC (1000 KC is
1 MC). Frequency is read on the dial every 10 KC and each dial
segment is equal to 2 KC. Tuning is accomplished by rotating the
tuning knob until the frequency is in line with the white indicator
located to the right of the number dial.
E. OPERATING AND TUNING. TBE RECEIVER
1. Turn the PWR ON-OFF switch to OFF.
2. Connect power source, antenna, ground, and phones as in-
structed above. Turn the PWR ON-OFF switch to ON.
3. For voice or tone modulated signals, set the CW control to
OFF. For Morse code signals, set the CW control somewhere close to
the small white arrow.
4. Turn the volume control 2/3 turns clockwise, or until a
rushing noise is heard in the phones.
5. Rotate the tuning knob until the frequency in kilocycles
is in line with the white indicator mark. SLOWLY rotate the tuning
knob first in one direction, and then in the other direction until
the desired signal is heard. The dial reading may be off as much
as 25 KC and may be off more than this amount in cold or very hot
climates.
6. After the signal is heard, carefully adjust the tuning knob
until the signal is heard as clear and as loud as possible.
7. For reception of Morse code signals, adjust the CW control
to the left or right to vary the tone of the signal.
8. Adjust the volume control to a level necessary to copy the
signal. When other radio signals interfere, a lower volume level
may help to copy through the interference. When the desired signal
intensity increabes or decreases, adjust the gain control for best
listening at the lowest level of the signal.
9. If the signel appears to slowly move away from its freq-
uency setting, it. may be necessary to VERY SL/GETLY readjust the
tuning knob. During interference from other signals, a slight adjust-
ment of the tuning knob, or adjustment of the CW control may improve
reception.
Declassified in Part - Sanitized Copy Approved for Release
2014/05/29: CIA-RDP78-03330A000600460002-9
Declassified in Part - Sanitized Copy Approved for Release
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1. Accuracy of the tuning dial may be checked by listening to
a frequency standard transmission. Throughout the world many
stations broadcast a continuous frequency standard signal on 5, 10,
15, and occasionally on 20 MCS (add three zeros to get EC). Signals
can usually be heard with the CW control either OFF or ON. A tone
signal can normally be heard, and most stations broadcast a voice
transmission periodically. Some of the many stations transmitting
are: Washington, USA (WWV); Honolulu, USA (WWW); Tokyo, Japan
(JJY); Peking, China (NV); Moscow, USSR (RUM); Rugby, 'England
(NSF); and Buenos Aires, Argentina (LOL).
2. The receiver can be tuned to one of the frequency standard
stations to determine the accuracy of the receiver tuning dial. To
hear weak standard signals, it may help to turn the CW control ON.
To listen to the tone signals or voice transmissions, the CW control
must be off.
3. The frequency standard stations also give the time checks
Normally, the tone leaves the air for about 20 seconds and returns
to indicate the time every 10 or 20 minutes, on the half hour, or
on the hour. Usually a voice transmission is made to give the
local time.
G. MAINTENANCE
There are no component spare parts supplied with the RR/E-11,
and repair and maintenance of the receiver is not recommended.
Most of the circuits are on printed boards, and the set is fully
transistorized. /f the simple trouble checks given below do not
clear a trouble, any repairs deemed necessary may be performed at
your descretion.
H. CHECKING TROUBLES
1. No sound is heard in the headphones.
a. Check all connections at the battery. Check that power
connections are properly made at the receiver. If possible, check
the battery voltage at the transmitter.
b. Check the headphones by momentarily touching the phone
cord tips to the terminals of a flashlight battery. Touching across
one terminal of o 12 volt battery would not harm the phones, but do
not touch the phones across the entire battery. When the phones are
momentarily touched across the small battery, a click in the head-
phones indicates that the phones are not defective.
Declassified in Part - Sanitized Copy Approved for Release
2014/05/29: CIA-RDP78-03330A000600460002-9
Declassified in Part - Sanitized Copy Approved for Release
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a. Check for a weak battery and charge the battery if
necessary. If a dry battery is used, replace with another
battery.
b. Check the complete antenna system to insure that no
part of the antenna or lead-in is grounded. Grounded means
making an electrical connection with the earth. Also, check to
insure that all antenna connections are making a good electrical
contact.
I. AUDIO CORNECRIOR FOR AUTOMATIC RECEIVING DEVICES
If you are provided with an automatic receiving device, the
instructions for that device may refer to the grounded and un-
grounded side of the receiver phones terminals (1). The upper
terminal is the ungrounded phone connection, and the lower ter-
minal (marked with the symbol ) is the grounded phone
connection.
Declassified in Part - Sanitized Copy Approved for Release
2014/05/29: CIA-RDP78-03330A000600460002-9
Declassified in Part - Sanitized Copy Approved for Release
2014/05/29: CIA-RDP78-03330A000600460002-9
CI
.1_,Lua.ramlon
1. Headphone Sockets
2. Nine-pia Plug for Power, An-
tennatGround, and Audio
3. Power ON-OFF and ON-AGC
Control
4. Antenna Terminal
5. Ground Terminal
6. Volume Control
7. CW Control
8. Frequency Dial
9. Frequency Tuning Knob
10. Dry Battery for Direct
Plug-in
11. Power Connector for 12
Volt Battery
Declassified in Part - Sanitized Copy Approved for Release
2014/05/29: CIA-RDP78-03330A000600460002-9
Declassified in Part - Sanitized Copy Approved for Release
2014/05/29: CIA-RDP78-03330A000600460002-9
MM/E litustration
1. Headphone Sockets
2. Nine-pin Plug for Power, An-
tenna,Ground, and Audio
3. Power ON-OFF and ON-AGC
Control
4. Antenna Terminal
5. Ground Terminal
6. Volume Control
7. CN Control
8. Frequency Dial
9. Frequency Tuning Knob
10. Dry Battery for Direct
Plug-in
11. Power Connector for 12
Volt Battery
Declassified in Part - Sanitized Copy Approved for Release
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