J&M Corporation JMCB-2003B User manual

Quality Motorcycle Audio
Owner’s
Manual
Pages 2-8
Guide
d’utilisation
Pages 9-15
Manual del
Propietario
Páginas 16-22
© 2010 J&M Corporation. All rights reserved. 8/10
#JMCB-2003B
Handlebar-
mounted
40 channel
citizen’s band
transceiver
(CB)/weather
radio with rider-
passenger
intercom
and auxiliary
audio Input
Monté sur le
guidon – 40
canaux poste
radio bande
publique (CB)/
fréquences
météo avec
interphone
conducteur-
passager et
entrée audio
auxiliaire
40 canales con
montaje en el
manubrio
transmisor
receptor de
banda ciudadana
(CB)/radio del
tiempo con inter-
comunicador
entre piloto y
pasajero, y
entrada auxiliar
de audio

—2—
Table of Contents
Product Description Section 1.
FCC Regulations Section 2.
Performance Features Section 3.
Package Contents Section 4.
Controls and Functions Section 5.
Installation Instructions Section 6.
Operation Instructions Section 7.
Antenna Information Section 8.
CB Channel Frequency Chart Section 9.
Specifications Section 10.
Warranty Statement Section 11.
1. Product Description
The JMCB-2003 is a compact Citizen’s Band radio designed to operate in the
26.965 MHz to 27.405 MHz band. This lightweight unit also features rider-to-pas-
senger intercom, an auxiliary audio input for an audio source such as an MP-3 play-
er, and ten weather channels, consisting of seven NOAA frequencies and three
international marine frequencies.
2. FCC Regulations
You do not need an FCC license to operate this radio in the United States.
However, you must know and be familiar with Part 95 of the FCC Rules in regard
to Subpart D of the Citizen’s Band Radio Service, a copy of which is enclosed in
the JMCB-2003 packaging.
Changes or modifications not expressly approved by the party responsible
for compliance could void the user's authority to operate the equipment.
3. Performance Features
• Maximum legal RF output Power (up to 4W) with high-level modulation (in
accordance with FCC Part 95 rules).
• Radio receives current National Weather Service broadcasts on one or more
of seven separate frequencies and periodic marine weather information on
three separate frequencies.
• Hi/Lo TX Power selection button
• Built-in automatic gain control (AGC)
• Phase locked loop synthesizer provides clear voice transmission and recep
tion on all CB channels
• Integrated rider-passenger intercom
• Auxiliary audio input (stereo)

A.
B.
C.
D.
E. F. G. H. I.
—3—
4. Package Contents
• CB unit JMCB-2003
• Owner’s manual
• Copy of FCC Part 95, Subpart D
• Copy of NOAA Weather Network frequency list
5 Controls and Functions
A. Auxiliary Audio Volume—Controls auxiliary audio/input volume to the head-
set/headsets.
B. Squelch Control—Allows CB background noise to be eliminated when no signal is
present.
C. On/Off CB and Intercom Volume Control—In the inward position the knob
turns the entire unit on and off and controls the CB volume. In the pulled-out
position, this knob controls the intercom volume. For Solo Rider Use: the inter-
com volume should be turned down completely (counter-clockwise).
D. Push-To-Talk Lever—Activates CB radio transmission (TX) mode.
E. Hi/Lo Power Selector Lock/Unlock Button—Controls CB TX power level.
Note: Pressing and holding the Hi/Lo button for 3 seconds will lock the Mode,
Hi/Lo, Channel Up, and Channel Down buttons. A lock symbol will be displayed
on the LCD Display. To Unlock the Mode, Hi/Lo,Channel Up, and Channel Down
buttons, press and hold the Hi/Lo button for 3 seconds and the lock symbol will
not be seen in the display. The CB Volume, Squelch, Intercom Volume, PTT, and
Aux Volume will not be affected by locking or unlocking the CB.
F. Channel Up—Selects any one of the 40 channels available on the CB radio.
It is also used to select any one of the 10 weather channels in the Weather
Mode.

—4—
G. Channel Down—Selects any one of the 40 channels available on the CB
radio. It is also used to select any one of the 10 weather channels in the
Weather Mode.
H. Mode—Used to select CB channels, weather channels or keypad beep.
I. LCD Display—Identifies CB or weather channel, Tx (transmit), Wx (weather
mode), Keypad beep, and signal/power strength.
J. Helmet Headset Plugs—Allows hookup to J&M helmet headset/headsets.
K. 12V DC Power Cord—Provides power and ground for the JMCB-2003.
L. PL-258 Connector—Antenna connector for a rear-mounted CB antenna.
M. 3-Pin Connector—Connects auxiliary audio input to a Walkman®-type music
device or other type of stereo radio system.
N. Auxiliary Audio Cable—Connects to a Walkman®-type music device.
to
rear-mounted
CB antenna
(not included)
personal
stereo/CD/
MP3/cassette
music device
(not included)
passenger
CB transmit switch
(not included)
automotive-type radio adapter
J&M #FGA-345/345HD
(not included)
black
3-pin plug
ground to
frame
fuse
holder
inline
noise
filter
12 volt switchable
Left speaker
(not included)
Right speaker
(not included)
Fairing mounted
radio or booster amp
(not included)
WHITE WHITE / RED RED
RED / WHITE
OR
black
3-pin
plug
black
9-pin
plugs
female
6-pin din
female
6-pin din
driver's
helmet headset
(not included)
passenger's
helmet headset
(not included)
6-pin
plugs
6-pin
plugs
J.
J.
K.
L.
M.
N.

—5—
6. Installation Instructions
1) Mount the JMCB-2003 to the left handlebar using the mounting bracket kit that
is applicable to your specific make and model of motorcycle. (Mounting Bracket
Kits are sold separately.)
2) Route the wires from the CB radio down the handlebar. Plug in the black 9-pin
plug from the supplied wiring harness. Connect the power wire (red) to a switch-
able power source or accessory terminal so that the unit is automatically turned
off when the ignition is turned off. Connect the black wire to a frame ground (not
to the battery negative). If it becomes necessary to replace the fuse, use a 5 amp
fuse for the red wire.
3) Connect the black 3-pin plug to the auxiliary audio cable and route the cable to
the auxiliary audio source.
4) Route all other cables where desired and hook them up according to the wiring
diagram.
5) Secure all wires and cables with the zip ties provided.
7. Operation of the JMCB-2003
1) With a helmet headset connected to the JMCB-2003 turn the ignition switch to
the ON position.
2) Rotate the SQUELCH knob on the JMCB-2003 fully clockwise.
3) Adjust the OFF/ON CB volume knob to a comfortable volume level and select
the desired CB channel.
4) Rotate the SQUELCH knob counterclockwise until the background noise is
removed.
5) Plug in your auxiliary audio/music device and adjust the AUX VOL control on the
JMCB-2003 fully clockwise to maximum volume. Adjust the volume on the auxil-
iary audio source to a maximum level just before distortion and then adjust the
AUX VOL control on the JMCB-2003 down to comfortable level. Further volume
adjustments while riding should be made with the CB mounted AUX VOL control
only.
6) The intercom volume can be adjusted by pulling out the CB VOL OFF/ON knob.
Turning the knob clockwise will increase the intercom volume. When the intercom
has been adjusted to a comfortable level, push the VOL OFF/ON knob back to the
inward position.
7) Weather channels can be accessed by depressing the MODE button once then
using the CH UP and CH DN buttons to select one of the ten weather channels.
The National Weather Service uses several special radio frequencies to provide

—6—
continuous reports of the local weather conditions and forecasts throughout the
United States. Taped weather messages are repeated every four to six minutes
on a 24-hour basis and are routinely revised every one to three hours, or more fre-
quently if needed.
During severe weather, the routine weather broadcasts will be interrupted with
special weather warning messages.
The JMCB-2003 is designed to receive all these special weather frequencies
plus three international marine frequencies. An NOAA Weather Radio Network
Frequency pamphlet is enclosed to identify the frequencies specifically broadcast
for your geographical area.
The JMCB-2003 receives CB, National Weather Service and international marine
weather broadcast frequencies as listed below:
CB Channels 1-40 26.965 to 27.405 MHz
Weather Channels 01WX 162.550 MHz
02WX 162.400 MHZ
03WX 162.475 MHz
04WX 162.425 MHz
05WX 162.450 MHz
06WX 162.500 MHz
07WX 162.525 MHz
Int’l Marine 08WX 161.650 MHz
09WX 161.775 MHz
00WX 163.275 MHz
8) Function indication “beep” can be turned on or off by depressing the MODE but-
ton two (2) times. The LCD display will show the word ON or OFF. To turn the beep
on or off, switch between the CHL UP and CHL DN buttons.
9) The HI/LO PWR selection controls the transmit (TX) power output. The low
power setting is often preferred when riding on close proximity to other motorcy-
cles you are communicating with to reduce distortion and improve overall voice
clarity.
8. Antenna Information
The maximum allowable CB transmitting power is limited by FCC regulations. The
antenna is a major component in the strength of the CB radio’s transmission sig-
nal and its reception range.

—7—
A minimum distance of 18” between the
CB antenna and the operator or passenger
of the motorcycle should be maintained.
9. CB Channel Frequency Chart
Channel
1 26.965 MHz
2 26.975 MHz
3 26.985 MHz
4 27.005 MHz
5 27.015 MHz
6 27.025 MHz
7 27.035 MHz
8 27.055 MHz
9 27.065 MHz Emergency Channel
10 27.075 MHz
11 27.085 MHz
12 27.105 MHz
13 27.115 MHz
14 27.125 MHz
15 27.135 MHz
16 27.155 MHz
17 27.165 MHz
18 27.175 MHz
19 27.185 MHz Highway Channel
20 27.205 MHz
Channel
21 27.215 MHz
22 27.225 MHz
23 27.255 MHz
24 27.235 MHz
25 27.245 MHz
26 27.265 MHz
27 27.275 MHz
28 27.285 MHz
29 27.295 MHz
30 27.305 MHz
31 27.315 MHz
32 27.325 MHz
33 27.335 MHz
34 27.345 MHz
35 27.355 MHz
36 27.365 MHz
37 27.375 MHz
38 27.385 MHz
39 27.395 MHz
40 27.405 MHz
WARNING: Do not try to make any internal adjustments.
Any internal adjustments must be made only by qualified technical personnel.
Internal adjustments and/or modifications can lead to illegal operation as
defined by FCC Rules and REgulations, Part 95. Illegal operation can result
in serious consequences.

—8—
10. Specifications
CB Channels 40
CB Frequency Range 26.965 to 27.405 MHz
Weather Channels 10
Weather Frequency Range
Receive Frequencies 162.550 MHz - 163.275 MHz
CB/Weather frequency control Phase locked loop (PLL) synthesizer
Operation temperature range – 4°F to +122°F
Channel display Liquid crystal display (LCD)
Power source 13.2V DC
Dimensions 6.5” x 3” x 1.75”
(165.1 mm x 76.2 mm x 44.5 mm)
Weight .8 lb
Receiver AM dual conversion superheterodyne
Transmitter 4 watts (maximum FCC allowable)
Noise and Interference
Motorcycle audio systems are by their very nature noisy. While we do not guar-
antee this system to be completely free from electrical noises and interference,
we have taken many steps to achieve that goal: the power supply system is well
filtered and the cables associated with the unit are shielded.
Most modern day motorcycles have resistor-type spark plugs installed by the fac-
tory. It may be necessary to insure that resistor-type spark plugs are installed on your
motorcycle.
Care, Cleaning and Protection
Your JMCB-2003 unit has been designed to withstand most weather conditions
likely to be encountered in the motorcycle riding environment.
This unit is NOT however designed to be submerged or to withstand a high pres-
sure spray from commercial car wash nozzles and the warranty will be void on any
unit that has been subjected to these conditions.
The included slip-on elastic cover should be installed over your JMCB-2003 unit
when washing your motorcycle or whenever your motorcycle will be left out in the
weather or direct sunlight for extended periods of time.
To clean your JMCB-2003, use a soft damp cloth and avoid any harsh cleaning sol-
vents or abrasives, as these may damage the finish or structural integrity of your CB
unit.

—9—
Table des matières
Description du produit Section 1.
Règlements de la FCC des États-Unis Section 2.
Caractéristiques Section 3.
Contenu de l’emballage Section 4.
Commandes et fonctions Section 5.
Directives d’installation Section 6.
Utilisation du poste JMCB-2003 Section 7.
Renseignements sur l’antenne Section 8.
Fréquences des canaux BP Section 9.
Fiche technique Section 10.
Garantie Section 11.
1. Description du produit
Le JMCB-2003 est un poste BP (bande publique) qui fonctionne dans la bande
comprise entre 26,965 MHz et 27,405 MHz. Ce poste radio léger comprend égale-
ment un interphone conducteur-passager, une entrée audio auxiliaire permettant
de brancher une source audio tel qu’un lecteur MP3 et dix canaux météo (sept
fréquences NOAA et trois fréquences maritimes internationales).
2. Règlements de la FCC des États-Unis
Il n’est pas nécessaire d’avoir un permis pour utiliser ce poste radio aux États-
Unis. Cependant, l’utilisateur doit connaître la partie 95 des Règlements de la
FCC, sous-partie D, Citizen’s Band Radio Service, dont un exemplaire est inclus
dans l’emballage du JMCB-2003.
Les modifications qui ne sont pas expressément approuvées par la partie respon-
sable de la conformité pourraient annuler l’autorisation d’utiliser l’appareil.
3. Caractéristiques
• Puissance de sortie RF maximale permise (jusqu’à 4 W) avec modulation
sur l’étage final (conforme à la partie 95 des Règlements de la FCC)
• Le poste reçoit le service météo National Weather Service des États-Unis
sur une ou plusieurs de sept fréquences, ainsi que les émissions maritimes
internationales périodiques sur trois autres fréquences.
• Touche de sélection de puissance d’émission
• Commande automatique de gain intégrée
• Synthétiseur à boucle à phase asservie améliorant la clarté de la voix en
émission et en réception sur tous les canaux BP
• Interphone conducteur-passager intégré
• Entrée audio auxiliaire (stéréo)

—10—
4. Contenu de l’emballage
• Poste BP JMCB-2003
• Guide d’utilisation
• Copie de la partie 95, sous-partie D, des Règlements de la FCC
• Liste des fréquences météo de la NOAA des États-Unis
5. Commandes et fonctions
A.
B.
C.
D.
E. F. G. H. I.
A. Commande de volume auxiliaire—Permet de régler le volume d’entrée/audio
auxiliaire vers le ou les casques.
B. Réglage silencieux—Permet d’éliminer les bruits de fond de la bande publique
quand aucun signal n’est présent.
C. Interrupteur/commande de volume BP et interphone—Quand il est enfoncé, ce
bouton permet d’allumer et d’éteindre le poste et de régler le volume de la fonction
BP; quand il est en position tirée, il permet de régler le volume de l’interphone.
D. Poussoir de microphone—Active le mode émission BP.
E. Touche de sélection de puissance d’émission (HI/LO)—Permet de modifier la
puissance d’émission BP.
F. Canal supérieur (CH UP)—Permet de sélectionner l’un des 40 canaux de radio BP
disponibles; dans ce mode, permet aussi de sélectionner l’un des dix canaux météo.
F. Canal inférieur (CH DN)—Permet de sélectionner l’un des 40 canaux de radio BP
disponibles; dans ce mode, permet aussi de sélectionner l’un des dix canaux météo.
H. Mode—Permet de sélectionner les canaux BP, les canaux météo ou la tonalité