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er. This is done by opening the link between terminals the user. This will require that the squelch control
#2 and #3 and connecting the speaker voice coil (3.2 (step 3) be readjusted for proper squelch action.
ohms) between terminals #1 and #2.
5. The crystal switch is located in the upper right hand
corner of the set. The channel may be selected by
MOBILE INSTALLATION rotating the switch to the proper channel marker.

RECEPTION OF A POLICE FREQUENCY BY UN­ 6. When the Tone Alarm Switch is in the OFF position
AUTHORIZED PERSONNEL IS ILLEGAL IN SOME any signal on the receiver frequency will be heard.
AREAS. It is the responsibility of the person
making the installation to be sure that the user of 7. With the Tone Alarm in the ON position the receiv­
this receiver is authorized or cleared through the er will remain quiet until it is alerted by the proper
local police department. Under no conditions can combination of tones from the transmitter. The
Regency Electronics, Inc., the manufacturer of Volume Control is inoperative at this time and the
this set, be held responsible for its unauthorized receiver volume will be at maximum when alerted.
installation or use.
8. To quiet the receiver again, turn the Tone Alarm
The Transistor Monitoradio receivers may be used in Switch to RESET and release.
any automobile with 12 VDC, negative ground system.
The lead with the fuse holder must be connected to the 9. If the Tone Alarm has the automatic reset option
positive terminal side of the battery and the other lead in it, the receiver will return to the quiet condi­
to the negative or ground side of the battery. The cor­ tion when the electronic timer has completed its
rect fuse size is 1/2 amp. cycle. The timer will be set at the factory for ap -
proximately 3 minutes; however, if a shorter time
The Regency A101 mobile antenna will serve as an anten­ is desired, a screw driver control will be found on
na for the high band, but Regency does not: manufacture the back of the receiver. By turning the control
an antenna for the low band mobile application. Any counter-clockwise the ON time will be shortened.
mobile, quarter wave length CB antenna maiy be cut to The manual reset may be used (step 8) if immedi­
proper operating length by dividing 2770 by the desired ate reset is desired.
frequency in megacycles .
INSTALLATION OF CRYSTAL
Example: 2770
92.3 inches
30MC
Due to the accuracy required, it is recommended that
the proper crystal for the desired channel frequency be
The receiver end of the coaxial cable is to be connected purchased and installed by Regency Electronics at the
to the antenna plug supplied with the receiver. Feed factory when the receiver is purchased; however, a
the center conductor of the cable through the hollow pin qualified technician with proper equipment can install
of the plug, solder the wire to the inside of the plug at the crystal if a change or addition is needed.
the end, and remove excess wire and solder. Solder
the outer braid of the cable to the shell of the plug. If the receiver was purchased complete with the crystal
or crystals, it was aligned at the factory and requires
OPERATING INSTRUCTIONS no further adjustment; however, if the crystal has been
purchased separately it will be necessary to perform an
NOTE : Steps 1 thru 4 are basic to all the receivers . RF alignment. See page
Step 5 is concerned only with Multi-channel models.
Steps 6 thru 9 cover the operation of the Tone Alarm Determining the Crystal Frequency
Models. Step 9 covers the Tone Alarm with the Auto­
matic Reset Option. High Band 148 to 174 me
Station Frequency (148 to 174) - 13 = Xtal Frequency
1. After installation of a suitable antenna and the con­ 3 45.0000 me to
nection of the proper power cord,the receiver may 53.6667 me
be turned on by rotating the Volume Control in a Low Band 30 to 50 me
clockwise manner. No warm-up time is needed Station Frequency (30 to 50) + 13 = Xtal Frequency
with transistors. 43.0000 me to
63.0000 me
2. Turn the volume control clockwise until the noise If no accurate means of frequency measurement is avail -
is at reasonable listening level. able, it is possible to align the receiver by connecting
anoscilliscope to test point C and adjusting the top core
3. By rotating the squelch control fully clockwise, all of T9 for equal swing of the audio signal above and be­
squelch action will be removed. Turn the squelch low the center line when a signal is being received.
control counter -clockwise until the noise disap­
pears .
4. When a signal is received,the volume control (step
2) may need to be reset to the level preferred by

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