Wireless NR-100 CB Transceiver User Manual 35362

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Document ID	35362
Application ID	A9YrAkg5uqqvVbw+M1j/NA==
Document Description	8
Short Term Confidential	No
Permanent Confidential	No
Supercede	No
Document Type	User Manual
Display Format	Adobe Acrobat PDF - pdf
Filesize	106.46kB (1330777 bits)
Date Submitted	1999-04-30 00:00:00
Date Available	1999-08-31 00:00:00
Creation Date	2001-06-29 10:55:48
Producing Software	Acrobat Distiller 4.0 for Windows
Document Lastmod	2001-06-29 10:55:50
Document Title	35362.pdf
Document Author:	jsoscia

FCC ID: MGPNR—lOO
APPENDIX 5
USERS MANUAL
TWENTY—TWO (22) PAGE USERS MANUAL FOLLOWS THIS SHEET
USERS MANUAL
FCC ID: HGPNR—lOO
APPENDIX 5
FCC ID: MGPNR-lOO
' OPERATING MANUAL
___________-———————
40 Channels
Citizen Band
Two-Way Mobile Radio
— Model : NR100
__—______.______________._——
OPERATING MANUAL NR—100 40-Channels Ciiizen Band Radio
TABLE OF CONTENTS... PAGE
INTRODUCTION .......................................................
THE CB STORY ...........
SPECIFICATIONS
GERNERAL ..
TRANSMITTE .
RECE NER. . ..
INSTAllATION
LOCATION ..
CONNECTION
IGNITION NOISE INTER‘EREN
ANTENNA .....................................
TUNING THE ANTENNA FOR OPTIMUM S
WERNAL SPEAKER
PA SPEAKER.
LOCATION OF CO ROL
OPERATION .........................
CONTROL FUNCTIONS
FRONT PANEL.
REAR PANEL
OPERATION PROCEDURE TO RECEIVE.
OPERATING PROCEUURE T0 TRANSMIT
FREQUENCY RANGE .....
COMPANDER OPERATION
10 CODES ............
10 CODES AND
A Few Rums THAT Suoum BE OEEVED
MAINTENANCE AND ADJUSTMENT....
ALTERNATE MICROPHONES AND INSTALLATION
WARRANTY .......................
muabmww i» N N
mmfibwnwfltam ID WNN
Revision Notes
Revision 0 First Issue Y.0. Leung 16-Feb-99
Wirelas Mcfing caper-lion . 1212, Renaldo" Road. smmbum. “50173. USA Riv/Hon 0 Page I d 21
OPERATING MANUAL NR-100 «to-Channels Citizen Band Radio
INTRODUCTION
Congratulations on your purchase of the CHEROKEE NR-100 Citizen Band
mobile radio. Your CHEROKEE radio is designed to provide trouble-free service
and advanced user features to make it the premier choice in radio
communications.
THE CB STORY
The Citizens Band lies between the short-wave broadcast and 10—meter Amateur
radio bands. and was established by law in 1949. The Class D two-way
communications service was opened in 1959. (CB also includes a Class A citizen
band and Class C remote control frequencies.) FCC regulations permit only
“transmissions" (One party to another) rather than "broadcast" (to a wide
audience). Thus advertising is not allowed on CB Channels because that is
“broadcasting".
ll WARNINQ ii
Electronics, may cause violation of the technical regulations of Part 95 of
the FCC Rules, or violation of Type Acceptance requiremenu of Part 2 of
All transmitter adjustments other than the front panel controls must be
made by, or under the supervision of. the holder of an FCC — issued
General Radictelephone Operator‘s License.
LlCENSING
Citizens Band (CB) Radio operators do not required to obtain a FCC license
to operate their CB equipment or provide station identification.
Nevertheless, an operator of a CB radio station is still required to comply
with the communication act and with the rules of CB Radio Operation.
OPERATING MANUAL
SPEClFiCATIONS
GERNERAL
Frequency Range:
Frequan Control:
Frequency Tolerance:
Frequency Stability:
Operating Temperature Range:
Microphone:
Input Voltage:
Current Consumption:
Size:
Weight:
Antenna Connector:
Meter (3 in 1):
Front Panel tllurination
Mm
Power Output:
Modulation:
Spurious Level:
Frequency Response:
Output Impedance:
Output Indicaors:
RECEIVER
__,._—
Spurious Emission:
image Reiection:
IF Frequency:
Adjacent Channel Rejection:
RF Gain Control:
Automatic Gain Control (AGC)1
Squelch:
ANL'.
Noise Blanket“.
NR—100 40—Channels Citizen Band Radio
ZSEBEMHZ to 27.405MHZ (40 Channels)
Phase Locked Loop (PLL) Symhaizer
0.005%
0.001%
-ZODegreesFto+120DegreesF
Plug-in Dynanic‘. with push to tdk switch 8- coiled
cord
13.3V DC mind, 15.9V Max.,11.7v Min
Positive or NegatiVe Ground
Transmit: AM lull modulation, 2.4 Amps Max.
Receive: Squelohed. 0.6 Amps Max.
Receive: Maximun Audlo Output, 1.0 Amps Max
2-315" (Height) x 7—3116‘ (Vlfidth) x 9-118” (Depth)
3.75 lb. Net. 5.73 lb. Gross with shipping box
UHF. 80239
“blinded: Irxicatesretdiveajptlpwvel', “waived
signal stratum and
Ebdro—Lunineewlt lznp Paid
AM: 1.0uVior 10:13 (S+N)IN atgmeternen 0.5
Wdts audio outs”-
67dB
60:15
AM: 10.695MH2 first lF. 455m: 2’“ ii:
42115 at min-i:
45dB adjustable for optimum signal reception
Less than 10dB change in audio output for inputs
from 10 to 100,000uV.
Adjustable; thmshoid 0.5uV
Switchable
RF Type
4 Watts into 8 ohms Max.
300 to 2800 Hz
8 ohms. round
: 8 ohms: disable imemal speaker when
connected.
Rel/limo Pug-seem
OPERATING MANUAL NR-100 40-Channels CifiEH Band Radio
INSTALLATION
LOCATION
Plan the location of the transceiver and microphone bracket before starting the
installation. Select a location that is convenient for operation and does not
interfere with the driver or passenger in the vehicle In automobiles, the
transceiver is usually mounted below the dash panel, with the microphone
bracket beside it.
CONNECTIONS
Your transceiver is supplied with a universal-mounting bracket. When mounting
the bracket and radio to your car, make sure it is mechanically strong. Also
provide a good electrical connection to the chassis of the vehicle. Proceed as
follows to mount the transceiver:
1. After you have determined the most convenient location in your vehicle, hold
the transceiver with mounting bracket in the exact location desired. Before
drilling holes for desired position, make sure nothing will interfere the
mounting position and the mounting bolts.
2. Connect the end of the antenna cable to the receptacle of antenna connector
on the rear panel. Make sire the antenna connector has the proper type PL—
259 plug to connect to the radio. Ensure thatthe antenna plug is screwed in
tightly.
3. Connect the supplied DC cord. with the fused red wire to +13.8V DC source,
and the black wire to a —13.BV source respectively. For automobile
installation, connect power source directly from the spare termmal of the car‘s
fuse box. or directly to the battery terminals.
This will help to avoid any interference from existing wiring system of the
automobile, and will minimize voltage drop caused by other circuits in the
same wiring system and allow. This will also allow you to operate your
transceiver anytime without starting the engine or turning on the ignition key.
4. To mount your Mic. Holder near your transceiver, we recommend the Mic
Holder be placed under the dash, so the Mic is readily accessible.
Vlfire‘esl MMnfl Carper-flan . 1212. MW Reid. Sdlm, “50173. USA Ratio“ 0 Page 4 d 21
OPERATING MANUAL NR-100 40-Channels Citizen Band Radio
IGNITION NOISE INTERFERENCE
's limited by the presence of electrical
noise. The primary source of noise in automobile installation is from the
generator and ignition system in the vehicle. Under most operating conditions,
when signal level is adequate
problem.
, the background noise does not present a serious
Even though the transceiver has ANL and NB controls. in some vehicles the
ignition interference may be high enough to significantly effect the performance
of the radio communications. The electrical noise may come from several
sources. Many possibility exits and variation between vehicles require difierent
solutions to reduce the noise level.
Note:
WHEN EXTREMELY LOW LEVEL SIGNALS ARE BEING RECEIVED, THE
SCEIVER PERATE WITH VEHICLE ENGINE TURNED OFF. THE
UNIT REQUIRES VERY LITTLE CURRENT AND THEREFORE WILL NOT
SIGNIFICANTLY DISCHARGE THE VEHICLE BATTERY.
ANTENNA
A vertically polarized. quarter-wavelength whip antenna provides the most
reliable operation and greatest range. Shorter, loaded type Whip antennas are
more attractive, compact and adequate for applications where the maximum
possible distance is not required. Also, the loaded whips do not present the
problems of height imposed by a full quarter-wavelength Whip.
iistic will be observed only at
extreme distances. A standard antenna connector (type 80 239) is provided on
the transceiver to easy connection to the standard PL—259 cable termination.
if the transceiver is not mounted on the metal surface. it is necessary to run a
tal electrical ground in the
separate ground wire from the unit to a good me
vehicle. When installed in a boat, the transceiver will not operate at maximum
efliciency without a ground plane. unless the vessel has a steel hull.
boat. consult your dealer for information
Before installing the transceiver in a
tion of electrolysis between
regarding an adequate grounding system and preven
fittings in the hull and water.
leorro Page5of21
Vllrrelen Mlkding Corporation , 1212, Ram'rum Road. Saint-MM. lLBOI73. USA
OPERATING MANUAL NR-100 40-Channels Cilia!" Band Radio
NTENNA FOR OPTIMUM SWR
Since there is such a wide vanity of base and mobile antennas. this section will
strictly oonoem itself to the various types of mobile adjustable antennas.
TUNING THE A
Because the antenna length is directly related to the channel frequency, it must
ll 40 channels of the transceiver. CH1
be tuned to resonate optimally on a
CH40, because it is lower in frequency.
requires a longer antenna than
ods of adjusting antennas for proper SWR, we have
Due to the various meth
the optimum method.
chosen what we think is
II WARNING Il
CONTINUOUS OPERATION OF THIS T
RANSMITTER WITH GREATER THAN
4:1 VSWR ANTENNA MISMATCH MAY RESULT IN RF
AMPLIFIER DAMAGE
adjustment screws (set screws)
extended and tighten the setscrew tight enough so
ped with your finger for easy adjustment.
A. Antenna with
1. Starts with the antenna
that the antenna can be lightly tap
2. Set your transceiver to Channel 20. Press PTT (
the antenna shorter.
push-tetalk) switch, and tap
h time the antenna is tapped.
The SWR meter will show a lower reading eac
otice the SWR reading will
By continuing to shorten the antenna you will n
so again, this means the optimum
reach 3 lowest point and than start to ri
tuning being pressed for center operating frequency of your transceiver.
B. Antennas which must be cut to p
ure as above. but adjust the length by cutting in
1. Follow the same proced
1/8 inch increments until a good match is obtained.
roper length
much at one time, as once it is cut. it can no
2. Be very careful not to out too
longer be lengthen.
cut by filing a notch all the way around and breaking the
3. The whip is easily
piece off with pliers.
ENNA ADJUSTMENT — If you have difficulties in adjusting
TIPS FOR ANT
e following:
your antenna, check th
Wirelfll Marketing Cu—pfll‘lllofl . 1212. Remington Road. Set-sumo, lL60113. USA which 0 Pane d 11
OPERATING MANUAL NR-100 40-Channels Citizen Band Radio
All doors of the vehicle must be closed when adjusting the antenna.
Make sure the antenna base is grounded.
Check your coaxial cable routing to make sure it is not pinched when
routed into the car.
Try a different location on your car, keeping in mind the radiation pattern
you wish.
Is the antenna perfectly vertical?
Try a different location in your neighborhood. Stay away from large metal
objects when adjusting. Such as metal telephone or light poles, and
fences, etc.
.'"l"" P OF"?
EXTERNAL SPEAKER
The external speaker jack "EXT. SPK" on the rear panel. is used for remote
receiver monitoring. The external speaker should have 8 ohms impedance
and be able to handle at least 4 watts. When the external speaker is plugged
in. the internal speaker is disconnected.
NOTE: THERE WlLL BE NO AUDIO OUTPUT FROM THE “EXT SPK“ JACK
WHILE IN PA MODE OF OPERATION
PA SPEAKER
The PA speaker jack “PA SPK' on the rear panel. is to be connected to a
Loudspeaker outside of the vehicle, so that it could be used as a "Loud
Hailer" to broadcast your speech to someone nearby when the PA feature is
selected on the radio. The PA speaker should have 8 ohms impedance and
be able to handle at least 4 watts. Use weatherproof “Horn” type
loudspeakers to get best results.
NOTE: THE RADlO WlLL NEITHER TRANSMIT NOR RECEIVE WHEN THE
"PA" FEATURE IS SELECTED
Vllirdal Mating Cu‘pw‘tlm . 1212 WWW Road. sduunburq. ILBO113. USA Revlslon 0 P5257 d 21
OPERATING MANUAL NR—100 40-Channels Citizen Band Radio
LOCATION OF CONTROLS
REAR PANEL
ONIOFF -VOLUME - SO 15. NBIANL SW
CHANNEL SELECTOR 16. S'WR SW (SIS'WRICAL)
CHANNEL DISPIAY 17. INDICATOR METER
RX/I'X LED INDICATOR 18. DC POWER SOCKET
Pfir‘g’y‘PWNT‘
Wirelss moaning eapumun , 1212, Ramington Road. Sen-um 150173, USA
MIC CONNECTOR 10. EL LIGHT DIMMER 19. EXT SPEAKER JACK
MIC GAIN 11. CD LED INDICATOR 20. PA SPEAKER JACK
RF GAIN 12. MODE SW (RBICBIPA) 21 ANTENNA JACK
CLEAR TUNE 13. CD SN (CDSICDTINOR)
SWR CAL 14. DIRECT CHANNEL SW
Rwisiano Pageaom
OPERATING MANUAL NR-100 4D—Channels Citizen Band Radio
OPERATlON
CONTROL FUNCTIONS
FRONT PANEL
1. MICROPHONE JACK
4-pin. standard screw-on microphone connection. Front panel mounted for
easy access. Must be connected to transmit.
. Adjust the microphone gain in the transmit and PA modes. This controls the
gain to extent that full talk power is available several indies away from the
microphone.
3. RF GAIN
Used to reduce the gain of the RF amplifier under strong signal condition.
Adjust this control to get best receiver signal to noise performance in the
“Clear Drive" mode.
4. CLEAR TUNE
Allows variation of the received frequency a few KHz above and below the
fixed CB channels. it may also be used to optimize the receiving signals by
tuning out interference signals in the adjacent channels.
5. SWR CAL
in order to achieve maximum radiated power and the longest range, it is
important that your antenna be properly adjusted and matches to the receiver.
The Built-in SWR (Standing Wave Ratio) meter lets you easily measure the
antenna condition. To operate this function. connect the antenna to the
transceiver RF output connector. Select a channel near the middle of the
band such as CHZO or the channel you plan to use most frequently. Turn the
power on and set the meter function switch to the CAL position. Press and
hold the microphone push to talk button and using the SWR CAL control.
adjust the meter to read the CAL posrtion indicated on the meter. Then,
without releasing the microphone button. switch the meter function switch to
SWR position and read the SWR indicated. The lower the figure. the better,
with 1 being ideal. Generally speaking, readings up to 3 is acceptable, but
over 3 indicate that you are losing radiated power and antenna adjustment is
required.
OPERATlNG MANUAL NR—100 40-Channels Citizen Band Radio
6. OFF/ON VOLUME (inner dual concentric)
Turn clockwise to supply power to the unit and to set the desired listening
level. During normal operation, the VOLUME control is used to adjust the
audio output level obtained either at the radio’s internal speaker or the
external speaker. if used. Turn fully counterclockwise to turn the unit OFF.
SQUELCH (outer dual concentric)
This control is used to cutoff or eliminate receiver background noise in the
absence of an incoming signal. For maximum receiver sensitivity it is desired
that the control be adjusted only to the point where the receiver background
noise or ambient background noises is eliminated. Tum fully counterclockwise
then slowly clockwise until the receiver noise disappears. Any signal to be
received must now be slightly stronger than the average received noise.
Further clockwise rotation will increase the threshold level. which a signal
must overcome in order to be heard. Only strong signals will be heard at a
maximum clockwise setting.
7. CHANNEL SELECTOR
This rotary switch selects any one channel desired. The selected channel
appears on the LED readout directly above the Channel Selector Knob.
8. CHANNEL INDICATOR
Numbered LED indicates the selected channel you wish to Operate on.
9. RXITX INDICATOR
The receive/transmit LED indicator is located next to the channel indicator.
The LED will be green when in receive mode and turns red when transmit
10. EL LAMP DIMMER SWITCH
This switch is used to select the two intensity level of the EL. Back lighted
Front Panel — Bright and Dim.
11.“CLEAR DRIVE“ INDICATOR (CD)
The “Clear Drive" LED indicator will turn on when ODS or CDT operation is
selected.
12. MODE Switch (RBICB/PA)
This switch is used to select the operating modes of the radio:
RB = Operate the CB radio with Roger Beep. This enables the "Roger Beep"
to indicate the end of a transmission, so that others could use the channel
immemately.
CB = Operate the CB radio (Normal operation)
PA = Operate the unit in PA mode. The voice pickup up bythe microphone
will be amplified and sent to the PA loudspeaker When the PTT is activated.
The radio would neither transmit nor receive in this mode of operation.
Wilde-e Marketim Comm-lion , 1212. Remington Reid, Schlumburg. “50113. USA Revision 0 Flee 10 d 21
fl
OPERATING MANUAL NR-100 40-Channels Citizen Band Radio
13.'CLEAR DRIVE" SWITCH (CDSICDTINOR)
This switch is used to enable the “Clear Drive" audio compander circuit of the
radio to provide clear and low noise communications between similarly
equipped units
CDS — “Clear Drive System" Makes full use of the Compander feature. Select
this when both the transmitting unit and receiving unit are using Compander.
CDT — “Clear Drive Transmit“ Select this to increase the clarity of your own
transmission while communicating with others that does not have a
Compander. The receiver Compander in the unit will be disabled in this mode
to match the non-compressed recited signals.
NOR — Normal CB Operation without using the Compander.
14.DIRECT CHANNEL SWITCH (CH19/CH9/NOR)
This switch is used to set the radio direct to Channel 19 (the channel being
used by most professional drivers), Channel 9 (the official Emergency
Channel), or allow the user to select any of the 40 GB channels with the
rotary Channel Selector.
15. NB+ANLIANLIOFF SWITCH
This switch is used to select different noise cancellation circuits for received
signals. ANL (Automatic Noise Limiter) turns on the noise reduction circuit to
improve the sound of the incoming transmission, and NB (RF Noise Blanker)
is very effective for repetitive impulse noise such as ignition interference.
16. SRFICAIJSWR SELECTOR
This switch controls the operating mode of the indicator meter. The meter will
show Received Signal Strength and RF output power level on SRF position.
When calibrating the SWR meter. this selector shall be put to CAL position.
When reading SWR after calibration, the selector shall be put to SWR
position.
17. INDICATOR METER
This meter is controlled by the SRFICALISWR seledor to indicates relative
received signal strength and transmitter RF output power, SWR Calibration
level or SWR level of the transmitter.
REAR PANEL
18. POWER CONNECTOR
Accepts the DC Power supply cable with built-in fuse (4 Amps) shipped with
the radio. Connects to 13.8V DC Power supply.
1 9. EXT. SP
Accepts 4 to 6 Ohms. 5-Watts external loudspeaker. When external
loudspeaker is connected to this jack, the built-in loudspeaker is disconnected
automatically.
Midst Meflng Capwdlnn , 1212. Remix-yon RM, Schaumburg, 160173, USA RM 0 PW 11 if 21
OPERATING MANUAL NR—1OO 40-Channels Citizen Band Radio
20. PA SP
Accepts 4 to 8 Ohms. 5 Watts PA loudspeaker, activates when PA mode is
selected.
21 . ANTENNA CONNECTOR
Accepts type PL-259 RF plug. To be connected to a 27MHz 50 Ohms
antenna through a 50 Ohms coaxial cable.
OPERATION PROCEDURE TO RECEIVE
1. Be sure that power supply, microphone and antenna are properly connected
before turning on the radio.
Turn the radio ON by rotating the Volume control clockwise.
Select desire mode of operation (Clear Drive I Roger Beep IANL etc).
Select desire channel to operate.
Turn the RF Gain control fully clockwise for maximum gain.
Adjust the squelch control to hear the background noise.
Adjust volume control for a comfortable listening level.
Re—adjust squelch control clockwise until the background noise JUST
disappeared (when there is no activities on the channel). Leave’the squelch
control at this setting. The receiver will remain quiet until a signal is received.
Do not advance the control too far, or some of the weaker signals will not be
received.
9. Re-adjust the RF Gain control to get best receiver signal to noise
performance when operating in Clear Drive (CD3).
9°>‘.°’.°‘:".°°l°
OPERATlNG PROCEDURE TO TRANSMIT
ti Caution ll
Be sure a suitable antenna Is property connected to the radio before
transmitting. Prolonged transmitting without an antenna or a poorly
matched antenna could cause damage to the transmitter.
1. The radio is property set up for receive as in the previous paragraph.
2. Set the Mic gain control fully clockwise
Listen on the channel to ensure that it is clear. hold the microphone two
inches from the mouth and speak clearly in a normal voice.
3. The SRF meter will indicate relative power output while you are transmitting.
Vii-elm MMW Corporation . 1212, Remington Rod. Schwmburv, M173, USA Revision 0 Pm 12 cl21
OPERATING MANUAL NR—100 40—Channels Cifizen Band Radio
FREQUENCY RANGE
The NR—100 transceiver represents one cf the mat advanced mobile radio in the
Citizens Radio Service. This unil features advanced Phase Lock Loop (PLL)
circuitry providing complete coverage of all 40 channels as shown below.
CB Channel Freq. CB Channel Freq.
Channel in MHz Channel in MHz
1 26.965 21 27.215
2 26.975 22 27.225
3 26.985 23 27.255
4 27.005 24 27.235
5 27.015 25 27.245
6 27.025 26 27.265
7 27.035 27 27.275
8 27.055 28 27.285
9 27.065 29 27.295
10 27.075 30 27.305
11 27.085 31 27.315
12 27.105 32 27.325
13 27.115 33 27.335
14 27.125 34 27.345
15 27.135 35 27.355
16 27.155 36 27.365
17 27.165 37 27.375
18 27.175 38 27.335
19 27.185 39 27.395
20 27.205 40 27.405
M3155: Markeiing lem . 1212. Remington Road, Schuumbuvg. ILN173. USA Rev/Elfin 0 Page 13 d 21
OPERATING MANUAL NR-100 40—Channels Citizen Band Radio
COMPANDER OPERATION
NR-100 radios are equipped with an audio compander circuit to enhance audio
performance. The circuit is ON when the “Clear Drive.‘ Switch on the front panel
is set to “ODS" or “CDT”.
The Compander comprised of two circuits, a Compressor for transmit audio and
an Expander for received audio. The Compressor reduces the dynamic range of
the transmit audio by increasing gain for low level signals and decreasing gain for
the higher level signals. A reversed process is conducted by the Expander. which
increases circuit gain for high level signals and reduces gain for low‘level signals.
When the Compander is used in both the transmitter and receiver (CDS). the
dynamic range of the audio signal can be preserved and the noise induced in the
transmission path is highly reduced.
When Compressor is only used in the transmitter end (CDT), and no Expander is
used in the receiver. the receiver will observe a corrpressed audio signal similar
to those from a very high gain microphone but without overload/clipping distortion
at high signal levels.
When the Expander is used in the receiver (ODS) and the compressor is not
present in the transmitter end. The Expander reference level is set at around
12dB SINAD output of the receiver such that the noisy signal at marginal
reception levels are suppressed. while the strong and clear signals are boosted.
The user might find the received voice levels be exaggerated in some cases.
10 CODES
Citizens Band operators have largely adopted the "10-code" for standard
questions and answers. its use permits faster communications and better
understanding in noisy areas. The following table lists some of the more common
codes and their meanings.
erd-s misting WM , 1212. Remington RM, Sol-mg. |Lw|73. USA Rav‘nlon 0 Flue M d21
OPERATING MANUAL
NR—100 40-Channels Citizen Band Radio
10 CODES AND THEIR MEANING
10-1
10-2
10-3
104
10-5
10-6
10-7
10-8
10-9
1010
10-11
10-12
10-1 3
10-16
10-17
10-18
10—1 9
10-20
10-21
10—22
10-23
10-24
10-25
10—26
10—27
10-28
10-29
10-30
10-32
10—33
10-34
10—35
10-36
Receiving poorly
Receiving well
Stop transmitting
0K, message received
Relay message
Busy, stand by
Out of service, leaving air
In service. subject to call
Repeat message
Transmission completed
standing by
Talking too rapidly
Visitors present
Advise Weather/Road conditions
Make pick up at
Urgent business
Anything for us
Nothing for you, retum to base 1
My location is
Call by telephone
Report in person to
Stand by
Completed last assignment
Can you contact
Disregard last infomration
I am moving to channel
Identify your station
Time is up for contact
Does not conform to FCC rules
I will give you a radio check
EMERGENCY TRAFFIC
Trouble at this station
Confidential information
Correct time is
10-37
10-33
10-39
1041
10-42
10—43
1044
10-45
1 0-50
1 0-60
1 0-62
1 0-63
1 0-64
1 0-65
1 0-67
1 0-70
1 0-71
10—77
10-81
10-82
10-84
10-85
10—91
10—93
1 0-94
1 0-99
Wrecker needed at
Ambulance needed at
Your messaged delivered
Please turn to channel
Tratt‘rc accident at
Traffic tie up at
l have a message for you
All units within range please
report
Break channel
What is the next message
number?
Unable to copy, use phone
Net directed to
Net clear
Awaiting your next
message/assignment
All units comply
Fire at
Proceed with transmission in
sequence
Negative contact
Reserve hotel room for
Reserve room for
My telephone number is
My address
Talk closer to mike
Check my frequency on this
channel
Please give me a long count
Mission completed, all units
secure
10-200 Police needed at
|_
Vllllfies! MM»; Ca'pfl'flicll . 1212, Mlldofl Rood, mm, IL50173, USA
Ravhlonfl Plae15d21
OPERATING MANUAL NR—10040—Channels CiiiZEn Band Radio
A Few Rules That Should Be Obsyed
1. You are not allowed to carry on a conversation with another station for
more than five minutes at a time without taking a one-minute break to give
others a chance to use the channel.
You are not allowed to blast others off the air by overpowering them with
illegally amplified transmitter power or illegally high antennas.
You can't use CB to promote illegal activities.
You are not allowed to use profanity.
You may not play music in your CB.
You may not use your CB to sell merchandise or professional service.
FPS-"PS”
How Your CB Can Serve You
Warn of traffic tie ups ahead
- Provide weather and road information
- Provide fast help in the event of emergency or break down
- Suggest good spots to eat or sleep
- Make long trips more interesting and help you keep awake
- Provide direct contact with your office or home
- Make friends for you as you travel
- Provide “local information" to find your destination
- Help law enforcement officers by reporting drunk or reckless drivers
The Highway Patrol has said that drunk drivers. wrong-way drivers and speeders
reported by CBers is "amazing." Even the "Smokey Beat" warnings don't shake
their beliefs that "the potential benefits of CB radio to law enforcement are so
great that they far outweigh the disadvantages" In regard to CB radar warnings to
other CBers, the Highway patrol has said, 'We've overheard warnings being
relayed to truckers long after our operating have! been discontinued...so we
actually receive a residual benefit from these warnings."
Use Channel 9 For Emergency Messages Only
The FCC gives the following examples of permitted and prohibited types of
communications for use on Channel 9. These are guidelines and are not
intended to be all-inclusive.
Permitted: "A tornado sighted six miles of town."
Not Permitted: "This is observation post number 10. No tornado sighted.“
erdsc Mating Camden . 1212 Newman Rood. Quantum, “30173, USA Revblon 0 Page 16 d 21
.__________________—_,._——___—————-~
OPERATING MANUAL NR-100 40-Channels Citizen Band Radio
MAINTENANCE AND ADJUSTMENT
The Cherokee NR-100 transceiver is specifically designed for the environment
encountered in a mobile installation. Should a failure occur. however, replace
parts only with identical parts. Do not substitute. Refer to the schematic diagram
and parts list in the Service Manual.
If problem occurs when operating your radio, review the operating instruction to
ensure that proper procedures were allowed. If the problem persist, refer to
WARRANTY SERVICE INSTRUCTION section in this manual.
lI FCC WARNING Il
All transmitter adjustments other than moss provided on the front panel by
the manufacturer must be made by or under the supervision of the holder
of an FCC-issued general radio telephone operator's license. TAMPERING,
MODIFICATION OR OTHER CHANGES WHICH ALTER THE TRANSMrI'TER
POWER OR FREQUENCY ARE A VIOLATION OF FEDERAL LAW.
PRESS-TO—TALK MICROPHONE SHIPPED WITH THE RADIO
A low impedance (500 Ohms) dynamic microphone is shipped with the radio‘ The
Push-To-Talk (P‘IT) switch on the microphone controls the operation of the
transmitter and the receiver. Press the switch and the to transmit and release the
PTT switch to receive.
ALTERNATE MICROPHONES AND INSTALLATION
For best results, the user should select a low-impedance dynamic type
microphone or a transistorized microphone. Transistorized type microphones
have a low output characteristic. The microphones must be provided with a four-
wire cable. See Figure 1 - microphone-wiring schematic for details.
It the microphone to be used is supplied with a pre-cut cable, they must be
reconfigured as follows:
1. Cut the wires so that they extend 7116" beyond the plastic insulating jacket of
the microphone cable. See Figure 2 for details.
2. All wires should be cut to the same length. Strip the ends of each wire 1/8"
and tin the exposed wires.
Before beginning the actual wiring. read carefully, the circuit and wiring
information provide with the microphone you selected. Keep the exposed wire
Mrs-l kadrtq Camila! , 1212. Runlnnlofl Reed. surmourg, 160173, USA Revision 0 Page 17 d 21
OPERATING MANUAL NR—100 40-Channels Citizen Band Radio
lengths to a minimum to avoid short circuit when the microphone plug is
reassembled.
MICROPHONE PLUG REASSEMBLING
Remove the retaining screw.
Unscrew the housing from the pin receptacle body
Loosen the two cable clamp retainer screws
Feed the microphone cable through the housing. Knurled ring and washers as
shown in Figure 3.
The wires must now be soldered to the pins as indicated in Figure 1. Wiring
table. if a vise or clamping tool is available, it should be used to hold the pin
receptacle during the soldering operation. so that both hands are free to do
the soldering job. Alternatively, the pin receptacle can be held in a stationary
position by inserting it into the microphone jack on the front panel. The
number of the pins of the microphone plug is shown in Figure 2 as viewed
from the back of the plug. Before soldering the wires, pre-tin the wire
receptacles of each pin on the plug.
S" 5‘pr
Be sure that the housing and the knurling ring of Figure 3 are pushed back onto
the microphone cable before starting to solder. If the washer is not captive to the
pin receptacle, make sure that it is [placed on the threaded portion of the
receptacle before soldering.
If the microphone tack is used to hold the pin receptacle when soldering, best
results are obtained when the connection to pins 1 and 3 are made first and then
the connections to pins 2, 4 and 5. Use minimum amount of solder and be careful
to prevent excessive solder accumulation on the pins, which could cause a short
circuit between pins and the microphone plug housing.
6. When all soldering connection to the pins of the microphone plug are
completed. push the knurling ring and the housing toward and screw the
housing onto the threaded portion of the pin receptacle. Note the location of
the screw clearance hole in the plug housing with respect to the threaded
hole in the pin receptacle. When the housing is completely threaded into the
pin receptacle, a final fraction of turn either clockwise or counterclockwise
may be required to align the screw hole with the threaded hole in the pin
receptacle. When these are aligned, the retaining screw is than screwed into
place to secure the housing to the pin receptacle.
7. The two cable ctamp retainer screws should now be tightened to secure the
housing to the microphone cord. If the cutting direction have been carefully
followed, the cable clamp should secure to the insulating jacket of the
microphone cable. Upon completion of the microphone plug wiring, connect
and secure the microphone plug in the transceiver.
Wm Muir's GWEN ,1212. “HMO" Rood. Schmburg. [1.31171 USA Rum I) PM 18 oni
Ill/If
OPERATING MANUAL NR—10040—Channels Cifizen Band Radio
ALTERNATE MICROPHONES SCHEMATIC.
FIG. 1 Your (11mm microphom wiring Momma
FIG. 2
Mlc plug pln number view-d Mn
rear of pln receptacle
FIG}
Microphone plug wiring
REEPTACLE
fiETAINlm
scant
A. MICROPMONE CONNECT“ ASEMBLV
B. ”CROPHONE CONNECTOR DISASSEMGLED FOR “HUNG
Md!!! erka’ting Carpal-lion, 1212. Rominglun Rad. Schmumburq. ILW173, USA mm D Pago19 121
OPERATING MANUAL NR-100 40—Channels Citizen Band Radio
WARRANTY
Limited One Year Warranty
WIRELESS MARKETING CORPORATION warrants that its Cherokee citizens
band (CB) radio, and the component parts thereof, will be free of defects in
workmanship and materials for period of one (1) year from the date of first
consumer purchase. This warranty may be enforced by the first consumer
purchaser, provided that the product is utilized within the U.S.A.
Vtfireless Marketing will, without charge, repair or replace, at it's option, defective
citizens band (CB) products or component parts upon delivery to the Wireless
Factory Service Department, accompanied by proof of the date of first consumer
purchase, such as a duplicated copy of a sales receipt.
You must pay any initial shipping charges required to ship the product for
warranty service, but the return charges will be at Cherokee expense, ii the
product is repaired or replaced under warranty. For further details concerning
procedures for obtaining service, see the "if You Need Service" section of the
Owner 5 Manual.
Exclusions: This limited warranty does not apply; 1) to any product damaged by
accident; 2) in the event of misuse or abuse of the product in as a result of
unauthorized alterations or repairs; 3) if the serial number has been altered,
defaced or removed; 4) if the owner of the product resides outside the U.S.A.
All implied warranties, including warranties of merchantability and fitness
for a particular purpose are limited in duration to the length of this
warranty.
Cherokee shall not be liable for any Incidental, consequential or other
damages; including, without limitation, damages resulting from loss of use
or cost of installation.
Some states do not allow limitations on how long an implied warranty lasts
andlor do not allow the exclusion or limitation of incidental or
consequential damages, so the above limitation may not apply to you.
WIRELESS MARKETING CORPORATION
1212 Remington Road
Schaumburg, IL 60173
Ph: 1-800-259-0959
Fax: 1-841-839-0016
E—Mail Address: wrlmkt@sprynet.com
Website: http:llwww.wirelessmarketing.com
Metal mm Corporation , 1212. Remington Rad, schaumhurfl, ILm173, USA Revision 0 Pm 20 d 21
OPERATING MANUAL NR-100 40-Channels Citizen Band Radio
For additional information about your new CB radio:
call the toll free Cherokee Consumer Information Hotline,
Monday- Friday, 8:00am- 5:00pm, CST.
(Please have the model and serial number ready)
1-800-259-0959
(In the us. and Canada ONLY)
If You Think You Need Service, Call 1-800-259-0959
You may be asked to send your unit to the Cherokee factory. It will be necessary
to furnish the following. in order to have the product serviced and returned.
I. For Warranty Repair, include some form of proof-of-purchase, such as a
mechanical reproduction or carbon or a sales receipt. If you send the original
receipt it cannot be returned.
2. Send the entire product. Must include CB unit and microphone.
3. Enclose a description of what is happening with the unit. include a typed or
clearly printed name and address of where the unit is to be returned.
4. Pack unit securely to prevent damage in transit. If possible, use the original
packing material.
5. Ship prepaid and insured by way of a traceable carrier (to avoid loss in
transit) such as United Parcel Service (UPS). Roadway Parcel Service (RPS)
or First Class Insured Mail to Cherokee Factory Service, Wireless Marketing
Corporation, 1212 Remington Road, Schaumburg, IL 60173. Cherokee is
not responsible for units not received if package has not been properly
insured.
8. if the unit is in warranty upon receipt of your unit it will either be repaired or
exchanged depending on the model. Please allow approximately 3 to 4 weeks
before contacting us for status. If the unit is out of warranty 3 letter will
automatically be sent infom1ing you of the repair charge or replacement charge.
If you have any questions, please call 1-800-259-0959 for assistance.
if you received the Cherokee product as a gift and do not have the proof of
purchase information necessary for service. include the following information,
with the product Clearly printed or typed name and address. Date. month and
year you received the gift. Model number, where purchased (if Possible) - store
name and location.
MUCH Marketlng profltion , 1212. Remington Reed. Wham. IL60173. USA Rat/blur I) Pay 21 d 21
FCC ID: MGPNR-lOO
APPENDIX 6
ALIGNMENT PROCEDURE
FOURTEEN (14) PAGE ALIGNMENT PROCEDURE FOLLOWS THIS SHEET
ALIGNMENT PROCEDURES
FCC ID: MGPNR-IOO
APPENDIX 6
FCC ID: MGPNR—lOO
SERVICE MANUAL
CIHERCDKEETM
40 Channels
Citizen Band
Two-Way Mobile Radio
I CHEROKEE '
Ofifiéfiéwfli
Model : NR100
_______-______.———__“_
NR100 40-Channels Citizen Band Radio
SERVICE MANUAL
TABLEOFCONTENTS
CONTENTnmnmmumum
TABLE OF CONTENTS ..................
' REVISION NOTES:
MODEL NUMBERS
SPECIFICATIONS
GERNERAL .....
TRANSMITTER
RECEIVER
THEORY OF OPERATION
INTRODUCTION
FREQUENCY GEN
A. PLL ClRCUlTRY.,...
B. 10.695MHZ SECOND OF
C. FREQUENCY CALCLAATIONS
1) Transmiflsf Overakxl
2) Receiver ‘
CIRCUIT DESCRIPTION
Power Supplies cicufl
Immmpom>
ALIGNMENT PROCEDURE
MEASUREMENT CONDITION ..............
TEST EQUIPMENT / TOOLS REQUIRED
PLL CIRCUIT ALIGNMENT
A Reference Oscillator Frequenc
B4 second oflsel meenqr Oscillator
C. PLL Mixer IC Input Level Adustment ,
D, PLL VCO Adjustment .....
E. PLL Off—set FreqwmyAdyu
Set Ihe radiate Receiving Mode
TRANSMITTER ALIGNMENT
A ndawwm.
B. AM RF Power Ollpll Adjustment.
C. AM Moduldion Aqusfmenlm
RECEIVER ALIGNMENT.....,..
A AM Sensllivlly acyuslmem.
B. squelch Madmen!
C, Compander Fundional Test -Rsceiver.
SUMMARY OF ALIGNMENT POINTS FOR NR100 RADIO
FUNCTIONAL DESCRIPTION OF ACTIVE
PARTS LIST FOR NR100 .......
“zviyilml (I Fig: I of 21
Wirdcfls khrkaingcmpnrnlim, 17.11. Remmym Raid. Sdmumhlrg IIfiDITL USA
SERVICE MANUAL NR100 40-Channels Citizen Band Radio
NR1 00 PCB LAYOUTS.
NR100 CIRCUIT DIAGRAM BLOCK DIAGRAM AND SHMCONDUCT
Revision Notes:
Revision 0 Filfi Issue Y.O. Leung 16 Feb 1999
Model Numbers:
NR1DO - 40 Channels AM CB Ratio with ‘Clear Dvive" Compander and EL. Bad Ligm me Pane!
Wirdcss Markdng Col-pantie“, 1211. Remingm Road, Séunmlmrg, [1601734 [ISA Rm‘isnm 0 Page I all!
SERVICE MANUAL
SPECIFICATIONS
GERNERAL
Frequency Range:
Frequency Control:
Frequency Tolerance:
Frequency Stability:
Operating Temperature Range:
Microphone:
Input Voltage:
Current Consumplion:
Size:
Weight:
Antenna Connector.
Meter (3 in 1):
Front Panel Illumination
TRANSMITTER
Power Output:
Modulation:
Spurious Level:
Frequency Response:
Output Impedance:
Output lndcatnrs:
RECENER
Sensitivity:
Spurious Emission:
Image Rejection:
IF Frequency:
Adjacent Channel Rejection:
RF Gain Control:
Automatic Gain Control (AGO):
Squelch:
ANL:
Noise Blanket“.
Audio Output Power.
Audio Frequency Response:
Built—in Loudspeaker:
Exlemal Loudspeaker (Not Supplied):
NR10|J 40-Clrannels Citizen Band Radio
26.96sz to 27.405MHz (40 Channels)
Phase Locked Loop (PLL) Synthesizer
0.005%
0.001 %
-20 Degrees Flo +120 Degrees F
Plug—in Dynamic. with push to talk switdr & coiled cord
13.8V DC nominal, 15.9V Max, 11.7V Min
Poslt'we or Negative Ground
Transmit AM fuI modulation, 2.4 Amps Max.
Receive: Squelched, 0.6 Amps Mex,
Receive: Maximum Audio Output, LO Amps Max
2-318" (Height) x 7-3118" (lMdth) x 94/8" (Depth)
3.75 lb. Net, 5.73 lb. Grosswilh shipping box
UHF, $0239
tluminated; Indcates relative output power, received signal
strength and SWR
EIedro-Luminesoent Lamp Panel
AM: 4 Watts
High Level Class B. Amplitude Modulation
-50dB
450-2500Hz
50 ohms. unbdanoed.
Meter shows relative RF omput power and SWR
Transnit LED glows red Mien lransnilter is in operation
AM: 1.0uV tor 10dB (S+N)IN at greaterlhan 0.5 Watts
audio output.
-67dB
60dB
AM: 10.695MHZ flfl IF. 455KHZ 2'“1 IF
4213 at 10KHZ
45dB adjustable tor optimum signal reception
Less than 10dB change in audio output for inputs from 10
lo 100,000uV.
Adjustable; threshold 0.5uV
Switrfnable
RF TYPE
4 Watts into 8 ohms Max.
300 to 2800 Hz
3 ohms, round
8 ohms; disable intemd speaker when connected.
Wirelm Markding Cam-um I112,R:mingm Road. Sdlrmmhlll’g. rum-13mm Rm‘sim. 0 hp 3 M1]
SERVICE MANUAL NR100 4o—Channeb Citizen Band Radio
THEORY OF OPERATION
INTRODUCTION
The NR100 40 diennels Citizen Band Mobile Transceiver is constructed with a Phase Locked Loop
frequency synthesizer to generate suitable RF signals for the double conversion receiver and the AM
transmitter drcuits.
The NR100 Block Diagram shall be used in associate with the following ciruil description
FREQUENCY GENERATION
A.
PLL CIRCUITRY
PLL is an abbreviation of the Phese-Locked—Loop. An "05105 PLL irlegrated drwlt, working
together with a transiaor Voltage Controled Oscillator (VCO). a microprocessor controlled channel
selector. and a down conversion mixer cirwit TA—7310 to form a dosed loop feedback circuit to
generate suitable RF trequenu'es required for a 40 mannet 27MHz CB operation
TR24 is a Crystal Oscillator to generate the reference frequency of 10.24Mt-lz. This signal is led into
Icfi's reference frequency counter (pin 3) to omin a phase comparison reference frequency of
10Kt-tz to its phase detector.
TR25 and Varicap Diodes D94 and D30 fanned a Voltage Controlled Ostfllator. The control voltage
is obtained from the phase detedor output (pin 7) of lcs Oscillator to operate in a frequency range of
16.27 ~ 16.71MHL The output of the V00 is buttered by TR2B to fed the receiver and transmitter
cirwit.
lCiO TA7310P consists of an anplifier, an oscillator and a nixer. The osdiator is a crystal oscillaor
operated in a frequency trimmed by indudors and a varicap to provide ditterent offset frequency
settings in AM (14.010MH1), The output trequenu'es coutd be further trimmed by VR507 and varimp
D124 in Receive Mode for'CteerTune" operation.
Pan of the VCO output is coupled to me buffer amplifier in lCtD (pin 7). It is then mixed with the
14.010MHz osciletor output to provide the PLL proqmrrmable divider input frequency of 2.28 ~
2.70MHz at pin 6. The signal is fed to pin 2 of l05 through a low pass filter oircrjt.
A microprocessor controlled channel snitch c'rcuit is employed to provide the division ratio to ICS
(pins 10 - 18) with conespondenoe to the channel number (1 ~ Mt) selected by the user. The PLL
input frequency (228 ~ 2,70MHz) is divided by the division ratio set by the channel selector to phase
compare with me 10KHz reference frequency. Any phase difference will result in a change of Dc
voltage output to the V004 When the VCO frequency reaches the desired value, the DC outprl to the
VCO stabilizes and the loop is in 1ocked' condition.
The Look Detector output (pin 8) of ICS is used to inhibi the transmitter P'I'I' and receiver audio
circuits to ensure the radio always operate on the comet: channel frequencies.
Both the PLL and CPU Imegrated Circuits are molded in epoxy and are not serviceable by the users.
Wueics! erlrdhlgComm'nion, 1211, Rating!“ Rot-t Sdrallmburg 1160173. USA Revision 0 Page 4 of“
SERVICE MANUAL NR100 40-Channels Cit'zen Band Radio
10.695MHZ SECOND OFFSET OSCILLATOR
TR-30 is a mystal osciatcr operates at a center trequency of 10.695MHz to provides all-set
frequency to L“ of the Tx mixer (IC9). which mixes with PLL VOO ouput to provide correct
lmnsmitting spot frequencies in AM operation.
FREQUENCY CALCULATIONS
The VCO frequency is obtained from the following calculation;
fvco=fo|rse+ Nfr
Where
~fvco = VCO frequency.
N = Programming Code for divider output,
f. = Reference Frequency step, 10 KHz (0.01 MHz)
i.e. At channel #1. the correspond'ng N code is 226
fvco = 14.010 + 226 mm = 16.270 MHz
Since Ihe mixer output determined by two famous: The second offset oscillator output and the
PLL/VCO output.
1) Transmitter Operation
The VCO output S mixed with the second 011—th osciIIatof signai and applied to the Tx mixer ICQ
through band pass fitters L43 and L“.
- For channel 1, the output of Tx mixer is 16.270 + 10.695 MHz = 26.965 MHz (Ch 1 Tx frequency).
2) Receiver Operation
The output frequenu'es of PLL and offset osciuators remained the same for Rx operation.
For channel 1, the receiving frequency is 26.965 MHZ
- Signalat1’ Local Oscillator fixer E $365 —16.270 MHZ = 10.695 MHz (First IF)
- Signal at 2” Local Oscillator MW is 10.695 —10.240 MHz = 455 KHz (Second IF)
- Signal is detected by diodes at 455 KHz to recover audio
CIRCUIT DESCRIPTION
A.
Power Supply Circuits
13.8V DC supplied from the DC Power connector atlhe backofthe ratio are proteded against
reversed connedion by 093, and filtered by an AF choke T1. This supplies voltage (freely to the
audio power amiiifier |ca, AM Modulator TR51 and the 6V regulator TR41.
Winds: erkaingCurpmulinn, 1m. Rcmingcn Road, sun-mum 1mm, USA Revision 0 I’lgr 5 «(II
SERVICE MANUAL NR100 40—Channets Citizen Band Radio
Two transistor switches TRSB and TR37 hints on and oil underthe control of KM (pin7) to supply
voltage to the transmitter and receiver drcuits. The TxIRx LED will grmv in red on transmit and green
during receive.
B. . Channel Seledor
The channel seledor o'rcu't is civtded into two pans. The pulsed rotary encoder switch SW701 with
the LED display and is driver u'rcuits in one board. The CPU lc701, PLL IC707 and is associated
driver circuits are lnmted in another PCB and are molded in epoxy. Only 40 Chizerr Band Channels
are mask progranrmed into the CPU. No extra or spare leads on the CPU/PLL are accessible bythe
users.
When the channel switch (SW701) is tumed dockwlse, it sends a pulse to pin 3 or I0701. The CPU
will find in is memory look-up table the correct Pu_ programmable divider division ratio and
increment the channel numberby 1, the adion will revert to decrement M13" the channel switch is
turned anti-clockwise. The data output are lmched by IC704 and IC705 to drive the channel display
LEDs, and latched by lC706 as the PLL division ratio foruse by IC7D7.
A EEPROM in the CPU clrcu‘n will hold the inton'nation at Iafi mannel selected, so that the same
channel will come back automaticaly alter the radio is switch back an alter being tumed off.
C. Frequency Synthesizer
Please refer to the previous sections for detailed description.
D. AM Modulation, Power Control and ALC
Input from the miu'cphone is oontmled by the Mir/Gain poterliortteter VR505 and amplified by IC4.
The amplified signal Is used to drive the AM Modulator u'rcu't consists of TR49 & 51.
There are two signals at the base of TR49, the DC voltage controlled by VR13 (RF Power Level
Adjust), and theAF level from pin 1 of la. The DC om controls the operating point of the Darlington
pair transistors TR50 a 51 to prwide power supply to the RF Power transistors TR43 E. 44, which
controls the RF Canter Power output of the radio. The AF signal is amplified and superimposed on
the DC bias to creme high level AM Modulation in TR43 & 44.
The maximum modulation is regulated by the Automatic Level Control (ALC) circuit consists of TR53,
TR34 and TR32.
TR53 is a comparator circuit with setpoint adjusted by W114. When TR53 conducts, the signal is half
wave rectified by 083 to drive the cunent amplfier TR34, Mlioh in turn drives TR32 on and shunt
down the Mic Audio signal at the input of IC4. The RC cimuit (0135, R176 ~ 178) at the base of
TR32 ensures the smooth operation of the ALC.
When the modulator overmcdutatos AC voltages at emitter of TR53 wit increase, and TR53 will
condor: more during the negative cycle of the modulation signal, which increases the collector
oun'ent at TR53 and turn TR43/TR32 on. The audio signal is shunted, inpm to the modulator
decreases until it readies the Modulation Lirt'it set point otVRM.
Wimlesr- Markfling Cam-um. rm. rum-gm Road. Sui-“mm 11mm. USA szision o p.” a on!
,4__________________,_.--——
SERVICE MANUAL NR100 4D—Channels Citizen Band Radio
Receiver Circuits
RF signal from the antenna is coupled to the receiver circuit by C43, the signal passes through a pair
of PIN fast switching diodes (D15/16). which are biased with AGC and a fixed voltages to protect the
receiver [root end from transmitter ouput and other ancessively strong signals.
The sing is “ten amplified by a low noise MOSFEl' (TR51). passes a bandpass filter (L7 ~ L5) and
nixed with the first local oscillator signal in TR18. The resulmnl first IF signal ot’ 10.695MHz goes
through a series of filer drmils, induding those used for Noise Blanker operation, and come to the
second mixer. ,
The IF signal is mixed with 10.240MHZ second local oscillator frequency to product 455KH1 second
lF. The second lF signal is mered and amplified b] two stages of amplifiers (TR9, TR10 and 11),
and then coupled to a diode detector (023 & 24) fordemodilation.
The demodulated audio signal is amflified by TR15 and routed to the audio power amplifier ICE via
the volume control VR5024 The audio amplifier is muted by volages from D80 when Tx is active.
The output of IF amplifiers are also connected to an IC amplifier circuit 001) to provide Signal Meter
DC voltages (pins 5 ~ 7), and the operation of Squeld'r Circuit (pins 8 ~ 10 a TR16). IC1 also provide
AGC voltages (pins 1 ~ 3 8. pins 12 ~ 14) to the receiverfront end and the PIN protection diode 016.
The Noise Blanker taps noise signal from the first IF filter network (L1G ~ L12), amplify the signal by
TR1 ~ TR3, demodulale it by D1 and DZ. The deteded noise level is further amplified by TR5 & TRG
to control TR7, which shunts the signal output level in the IF titer network (Liz). The IF gain for the
noise signal is therefore reduced,
Transmitter Circuit
The RF signals generated from the Pu. and the second offset oscillator / balanced mixer are
assembled at RF Mixer leg to provide the final transrniting signal. The signal passes through a
bandpas filter (L40 8; 42) to two stages ot RF ptedt'ivels (T R45 & 48), RF driver TRM, the final
stage amplifierTR43. a low passfilter network and then to the antenna.
Modulated voltages only apply to the oolledors ol TR43 and TR“. Please rater to the previous
sections fordetail description of frequency generation and modulation.
The output signal is picked up by D66 5 D87 to give relative RF output power meter indication, and a
Standing Wave Ratio (SWR) sampling circuit consists of D401 and D402 provides the SWR meter
indication feature.
Compander and PA Bridge Circuit
The NRtDo radio is equipped with a Compander drouil, which will be marketed under the trademark
of “Clear Drivefl The leature court be enabled orturned 011 by a trout panel snitch labeled as ‘C.D."
The Compander drouit consists ot I0901 is employed. The circuit can be divided into three parts:
- Compressor
- Low Pass Audio Filer
- Expander
Transmit audio from the microphone is routed to pin 8 ct rcoonor ampliftation, and then to the
inlemal Compressor circuit for audio processing. Output from the Compressor (pin 3) is routed
Wirdess MnrkaingCorporalrm. rm. Reminpon Road. soon-nun; "mm USA Revision 0 page 7 am
SERVICE MANUAL NR100 40-Channels Citizen Band Radio
through an active three pole low pass filer (pins 1 & 2) to the Mic Gain control. All the excessive high
frequency signals are suppressed by the filer before transmission.
The reference level of the compressor is set by R905 to around 5mV microphone input. R901 is
inserted into the circtit to obtain suitable modulation level.
Received audio from the detedcr is sent to pin 15 for ampl'flcation. and then to me internal Expander
cimii for audio processing. The reference level is set by R908 to around 12dB SINAD, the output is
taken from pin 19 and is connected to the Volume control on the front panel.
Pin 12 of room provides the bypass feature. When a high level is present, both the Compressor and
the Expander are operative. When pin 12 is oonneded to ground potential. both the Cmnpreseor and
the Expander are bypassed - All the antic level passes through I0901 without getting any level
processing.
The PA amplifier drum is integrated into the Compander timu‘t PCB, which consists of TR901 and
some R-C oircufls. This amplifier bridges between the microphone and audio amplifier input drwit.
TR901 is numtaly on during CB radio operation, and would become active when the PA feature is
selefled on the front panel.
H. Electra—Luminescent Back Light Front Panel
The NRtOO radio is fitwih a colored Beam-Luminescent (EL) back light from panel. The EL. panel
is driren by a single transistor audio lrequency DC—AC inverter TR351. The intensity of the EL. panel
is achieved by liniting the ounent input to the inverterwith the Dimmer switch $514. The operating
frequency of the inverter is in the range of 1KH7.
Wireless Mg Carper-rim 1211. Raninyun Read. Sdnumlmrg, 11611173, USA Revisuon o P.“ sum
SERVICE MANUAL NR100 Mil-Channels Citizen Band Radio
ALIGNMENT PROCEDURE
MEASUREMENT CONDITION
The following sections describes the alignment procedure forthe NR100 mobile transceiver under following
100%
Wireless Markairrg Corporation, 1212, Remingon Rc-d Sdnanmbnrg llflll 73‘ USA Revisinn 0 Pl;- I1 MI]
SERVICE MANUAL NR100 40-Ohannels Citizen Band Radio
ii) FCC Emission Limitation Check
- Set up equipment as in i) AM Modulation MonnorTesl. OompanderOFF.
- Couple the Spectrum Analyzer input to the RF Dummy Load
Apply 2.5KHz 50mV nns. audio tones signal to the MimpMne input connector pin 2.
- Activale PTT Io (ransmiL adjusl AM Modulation level In 8596 (see Fig IA).
— Obsewe on the Specilum Analyzer that the Radio‘s RF output are within the FCC limits
— Repeal kw wiih Commander ON.
85% MODULATION SPECTRUM EMISSION LIMITATION TEST
Test Condition
fc = 27.205MHz
frn = 2A5KHz
m = 85%
To = 77 Deg F
RELATIVE LEVEL dB
—20KHZ —10KHZ (fo) +10KHZ +20KHZ
SPREAD FROM CENTER FREQUENCY fc (KHzl
Wireless Markuinngpomion, 1m, Remingun Rani Sdumnhurg 1mm. USA Revision 0 Page I} am
FCC ID: HGPNR-lOO
APPENDIX 7
CIRCUITS AND DEVICES TO STABILIZE FREQUENCY
All 40 channels of transmitting, and receiving, frequencies
are provided by PLL (Phase Locked Loop) circuitry.
The purpose of the PLL is to provide a multiple number of
frequencies from a VCO (Voltage Controlled Oscillator) with
quartz crystal accuracy and stability locked to crystal
oscillator reference frequency.
The reference crystal oscillator frequency is 10.24 MHz.
CIRCUITS AND DEVICES T0
STABILIZE FREQUENCY
FCC ID: HGPNR—IOO
APPENDIX 7
1.
FCC ID: MGPNR-lOO
APPENDIX B
j . i o: E . i' .
The tuning circuit between the output of final amp Q603 and
antenna, 4-stage PI: network consisting of L33, C166, 0165,
L62, C161, LGl, C160, L31, C158, C340, and L63 suppress
spurious emissions.
This network also serves to match the impedance between Tx
power amp and the antenna.
AH_M9dulatiQn
Input from the microphone is controlled by the Mic-Gain
potentiometer VR505 and amplified by ICA. The amplified
signal is used to drive the AH Modulator circuit consists of
TR49 & 51.
There are two signals at the base of TRAQ, the Dc voltage
controlled by VR13 (RF Power Level Adjust), and the AF level
from pin 1 of Ic4. The DC bias controls the operating point
of the Darlinqton pair transistors TR50 & 51 to provide
power supply to the RF Power transistors TR43 5 44, which
controls the RF Carrier Power output of the radio. The AF
signal is amplified and superimposed on the DC bias to
create high level AH Modulation in TR43 & 44.
The maximum modulation is regulated by the Automatic Level
Control (ALC) circuit consists of TR53, TR34 and TR32.
TR53 is a comparator circuit with setpoint adjusted by VR14.
When TR53 conducts, the signal is half wave rectified by D83
to drive the current amplifier TR34, which in turn drives
TR32 on and shunt down the Mic Audio signal at the input of
IC4. The RC circuit (C135, R176 ~ 173) at the base of TR32
ensures the smooth operation of the ALc.
when the modulator overmodulates, AC voltages at emitter of
TR53 will increase, and TR 53 will conduct more during the
negative cycle of the modulation signal, which increases the
collector current of TR53 and turn TR43/TR32 on. The audio
signal is shunted, input to the modulator decreases until it
reaches the Modulation Limit set point of VR14.
DEVICES AND CIRCUITS T0 SUPPRESS
SPURIOUS RADIATION; LIMIT
MODULATION AND POWER
FCC ID: HGPNR-lOO
APPENDIX 8
FCC ID: MGPNR—lOO
APPENDIX 9
PLL DATA SHEETS
FIVE (5) PAGES FOR HC145106 PLL FOLLOW THIS SHEET
PLL DATA SHEETS
FCC ID: HGPNR-IOO
APPENDIX 9
MOTOROLA
semconoucron TECHNICAL DATA
Order thll document
by MCIQSI WD
PLL Frequency Synthesizer
cmos '
The MC145106 is a phase—locked loop (PLL) lrequency synthesizer
constructed in CMOS on a single monolithic structure. This synthesizer l'nds
applications in suoh areas as CB and FM transceiverst The device contains an
oscillator/amplifier. a 210 or 211 divider chain for the oscillator signal. a
programmable divider chain lor the input signal. and a phase deletion The
M0145103 has circuitry for a ma MHz oscillator or may operate with an
external signal. The circuit provides a 5.12 MHz output signal, which can be
used tor lrequerrcy tripling. A 29 programmable divider divides the hput signal
irequeney for channel selection. The inputs to the programmable divider are
standard ground-tif-aupmy bhary signalsr Pull-down resistors on these inputs
normally out these inputs to ground enabling these programmable inputs to be
controlled from a mechanical switch or electronic circuitry.
The phase detector may control a VCO and yields a high level signal when
input lrequency is low, and a low level signal when input lrequency is high. An
out—oI—Iock signal is provided irom the err—chip look detector with a "0" level lor
the out-oi—lodt condition.
single Power Supply
Wide Supply Range: 4.5 to 12 V
Provision lor 10.24 MHz Crystal Oscillator
542 MHz Output
Programmable Division Bhury Input Select; up to 29
On—Chip Pul—Down Resistors on Programmable Divider Inputs
Selectable Relerenoe Divider, 210 or 2“ (Including + 2)
Three—Slate Phase Detector
See Applcation Nola AN535 and Article Reprint AR254
Chip Complexity: 850 FETB or 220 Equivalent Gates
See the Mc145151—2 and M0145152—2 lor Higher Performance and
Added Flexibilty
BLOCK DIAGRAM
P SUFFIX
PLASTIC DIP
CASE 707
W SUFFIX
SOG PACKAGE
CASE 751 D
ORDERING INFORMATION
MC145106P Plastic DIP
M0145106DW SOG Package
PI: P1 P2 P3 P4 P5 P6 P7‘ P6
REV!
If“
0 Motorola, Inc. 199:
PIN ASSIGNMENTS
PLASflc DIP
SOG PACKAGE
NC - N0 CONNECTION
MAXIMUM RATINGS (Volume Referenced to VSS)
mam-3mm
_m—-
_—n
Thh devio- mm dmuluy lo praise! the
1mm agent dam-90 due «7 high manic voll-
anosordoclncnqdl; however. it iewvised that
novmnl wacsmlomumken to avoid application
of any volmoe mam than maximum ram
volugaa In His th Impedance drum. For
propeiopemflon Ills mommsndoflmslvh and
V5." be constralnod Io ma rung: Vss s (Vh or
V011!) 5 VDD-
oc-nmumw“ I.—
ommrmmmmee
shrugs Tempemlure Range
—B5k7+|50
______________.—————————-———
MOTOROLA MC1451 05
ELECTRICAL CHARACTERISTICS (T A - 25'6 Unless Othavwlse Smed. Vollagas Renamed Io Vss)
m-flm—m_
_wsserowevswwmw _m—“—n
supply Guns". HEB-En
InpuI Volume “(V Level
Inpu| Current
FS, Pull—Up Rumor 5mm Currlnl)
(P0 - P8)
(F5)
(PD — Fe, Pun—Dawn Hulda! Sink Currem)
(050mv fin)
(oscin. fin)
Oulpul Drive Culver“
(v0 . 4.5 V)
(V0 = 9-5 V)
(v0 . 11.5 V)
(v0 s as V) sink
(V0 = 0-5 V)
(v0 1 045 V)
Inpui Amplmnla
(«in a 4,0 MHz)
(050m 0 10.24 MHz)
Input Human“
(050m. fin)
_npul Capeu'mme
_OSC1n. fin)
ThreewSlale Leakage Current
(G’De'om)
Inpul Fremont}; 45
(— 40 la + 35°C) 12
Oudllalor Frequency 10.24
(— 40 so + 55°C) 10. 4
mm labelled 'Typ" i. nol u be mu lav denim puma-st M i- intended .. an mac-lion 0! me no. pmmlfl mun-nu.
MC145106 MOTOROLA
TYPICAL CHARACTERISTICS'
vomsurm vomrs (v;
VDD- POSITIVE POWER SUPPLY (V)
0 III 20 M 40 50
, u", mxmuu Fnsuusucv (MHz)
Figure 1._Mexlmrum Dlvlder Input Frequency
vinul Supply Volun-
oscm. MAXIMUM rascusucv (mm
Figure 2. Maximum Oscillator Input Frequency
le‘l Supply Velma.
' Dal! labeled ‘Typ‘ I! not to be used lor dellnn purpoue but |l Intended at an lndleallon ol the 10: potential permanence.
TRUTH TABLE
1: VollegeleveI=VDD.
o: Vonagsmu=oarepsn dmulllnmm
‘munarywnngamooooooom uncommon PBloPu mulls
InazanddelIonwfidlIlnmlnthZN-I mumflvhmpln
lsnmmnneded Ihe logic-lgnelonlhelplnelnbclreamue‘d'.
PIN DESCRIPTIONS
P0 - Pl
Progmmmnblo Input. (PDIF — Pins 11 - D; SOG — Pin-
19, 17— 14, 12 -9)
Programmable divider inpule (binary).
rIn
Frequency Input (PDIP, GOG — Pin 2)
Frequency Inpul lo programmable dlvlder (derived lrom
vcoy
050m, use“,
Oscillator Input and Oscillator Output (PDIP, SOG —
Fin! 3, 4)
Oscillator/empilier input and output len'nInaIs.
MOTOROLA
LD
Lock Delmar (PDIP, SOG — Pln e)
LD is high when loop Is locked. pulses low when out-ol—
lock.
QDfiqm (PDIP. SOG — Pln 7)
Signal for control of axlernal VCO. culpul high when f|n/N Is
less lhen the relerenoe lrequency; output low when fin/N is
greater than line reference lrequency. Releranoe frequency is
the divided down oscillelar— input lrequency typieely 5.0 or
10 kHz,
NOTE
Phase Detacmr Gain = Von/4m
FS
Reformat Olclllner Frequency DMelen Sol-fl (PDIP,
sou — Pin 0)
When uslng 10.24 MHz 030 lrequeney. lhis control selects
10 kHz. 8 ‘0' selects 5.0 kHz.
. 2°... (PDIF, sod — Pin 5)
Helerence OSC lrequency divided by 2 output; when using
10.24 MHz OSC frequency, this output is 5.12 MHz lor fre-
quency Irlpllnq eppllcetions.
Von
Ponlflv‘ Paw-r Supply (PDIP. SOG — Ph 1)
Vs
Ground (FDIPi— pm 1a, soc — Pin 20)
M0151“
PLL SYNTHESIZER APPLICAflONS
The M0145106 is well stilted tor applications in CB radios
because oi the channelized frequency requirements. A typi-
cal 40 channel CB transceiver synthesizer, using a single
crystal relerence. Is shown In Figure 3 for receiver IF values
at 10.695 MHz and 455 kHz.
lnaddilion to aptiicettons In CB radios, the MC145106 can
be used as a synthesizer tor several other systems. Various
frequency spectrums can be 511115er through the use at
proper oil‘se'L prescaling. and loop programmhg techniques.
in general, 300 — 400 channels can be synthesized using a
single loop. with many additional channels available when
multiple loop approaches are employed. Figures 4 and 5 are
enemples cl some possibilities.
In the straw“ synthesizer of Figure 5, the VHF loop (top)
will provide a 50 kHz, 360 channel system with 10.7 MHz
R/T oitset when only the 11.0500 MHZ (transmit) and
PH
02
-CTORDET
PROGRAMMABLE
l. DMDER.
lmS—HUSMHIURANSMI'I’)
031—135 MHNREOEIVE)
12.1200 MHz (receive) lrequenoles are provided to mixer 01.
When these signals are provided with crystal osdtlators, the
result is a three crystal 380 channel. 50 kHz step synthesizer.
When using the oilset loop (bottom) in Figure 5 to provide the
indicated injection irequenclee tor mixer in (two tor transmit
and two tor receive) 360 additional channels are pwsible.
This mean it a 720-chennei. 25 kHz step synthesizer which
requires only two crystals and provides HIT offset capability.
The receive onset value ls determined by the 11.31 MHz
crystal frequency and is 10.7 MHz tor the example.
The VHF marine synthesizer in Figure 4 depicts a single
loop approach tor FM tranweivers. The VCO operates on ire-
quency during transmit and is oilset downward during re-
ceive. The oilset corresponds to the receive lF (10.7 MHz) tor
channels having identical receive/transmit frequencies (sim-
plex), and is (10 -45 = 6.1) MHz iorduplex channels. car-
rier modulation 's introduced in the loop during transmit.
mes - mos mu
(mmsurn
mm - mso Mttz
(RECEIVE)
T0 Fiscal/ER RECEIVER lsT
ZN!) MXEt LOCAL OSC SleNAL
Figure 3. Single Crystal CB Synthesizer Featuring On-Frequency vcc During Tt-enemlt
[40145106
MOTOROLA
FCC ID: MGPNR—lOO
APPENDIX 10
FINAL RF AMPLIFIER DATA SHEETS
THREE (3) PAGES FOR KTC2078 FOLLOW THIS SHEET
FINAL RF AMP DATA SHEET
FCC ID: HGPNR-lDD
APPENDIX 10
ws\wirm:100
Parts Specification Page 1/3
~ C.B. Mobile Transcelver
28C 1 969 TR'43 mm zmnxm. PLANAR TYPE
pescmmém v
5519591: - silicon NPN mum-l pun-r wot mnmr fluiqnfid OUTLINE DRAWING b-nwwmm m
I" a: pbwtr mum-m on HF band mobile radio lppiicalionx »
FEATURES ” m"
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APPLICATION
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ELECTRICAL CHARACTERISTICS (“c-u": Muhamww ' -
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Parts Specification page 2/3
C.B. Mobile Transceiver
ZSC1969 an 11-11an MAI Tm
TEST cmcun‘
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COLLECTOR DISSIFATIDN VS. COLLECTOR CURRENT VS.
WENT TEMPERATURE COLIIC'TOH TD SHUTTER VOLTAGE
5 3
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COLLECTOR CURRENT HAS! To IM'TTIR HESIETAHCE
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Parts Specification
Page 3/3
C.B. Mobile Transceiver
28C1969
NPN EPITAXIAI. FLANAR TYPE
COLLECTOR OUTPUT
CAPACITANCE VS. COLLECTOR
- TD M85 VOLTAGE
CNARACTERIOTICI
WOMEN“ OUTPUT CAFAUTANCE C.“ if)
5 via raw 50mm
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COLLECTOR SUPPLV VuTAUE
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DISTORTION VI. OUTPUT POWER
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---

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