C. Crane FM Transmitter 2 User manual

FM TRANSMITTER 2
OPERATING INSTRUCTIONS
PLEASE READ ALL THE INSTRUCTIONS COMPLETELY BEFORE USE AND
SAVE THIS MANUAL FOR FUTURE REFERENCE.
C.CRRNE

Page 3FM Transmitter 2
Thank you for purchasing the FM Transmitter 2. It transmits high-delity audio from
any audio source such as a mobile phone, computer, television, powered
microphone, smartspeaker to any nearby FM radio. Superior engineering and
construction techniques were used to bring you the highest quality FM transmitter
possible. Digital tuning and Phase Locked Loop technology have been incorporated
for FM band frequency coverage from 88.3 MHz to 107.7 MHz, with stability and
superb audio quality.
For your future reference:
Serial No. (Found inside battery compartment): ____________________________ _
Date of purchase/ Name & address of dealer: ______________________________
__________________________________________________________________ _
Introduction/Owners Record
CAUTION
• Before turning the unit on, set your volume control to a low setting.
• Slowly increase the sound until you can hear it comfortably and clearly without
distortion.
• Long-term exposure to loud sounds may cause hearing damage. It is best to avoid
high volume levels when using headphones/ earbuds, especially for extended
periods.

Page 4 FM Transmitter 2
Safety Instructions
READ BEFORE OPERATING EQUIPMENT. SAVE THESE INSTRUCTIONS.
1.) Read and understand all safety and operating instructions before the FM
Transmitter 2 is operated.
2.) Retain Instructions: The safety and operating instructions should be retained
for future reference.
3.) Heed Warnings: All warnings on this appliance and all operating instructions
should be followed.
4.) Water and Moisture: The FM Transmitter 2 should not be used near water. Do
not use near a bathtub, washbowl, laundry tub, kitchen sink, wet basement,
swimming pool, etc. Risk of electric shock may result.
Please read IMPORTANT SAFETY INSTRUCTIONS before use. It is important to read and
understand all instructions. Keep these precautions and instructions where all who will use this
FM Transmitter 2 will read them.
WARNING: To prevent re or electric shock hazard do not expose this product to rain or
moisture.
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
CAUTION: To reduce the risk of electric shock, do not remove the radio back. No user
serviceable parts inside. Refer servicing to qualied service personnel.
This symbol is intended to alert you to the presence of uninsulated
dangerous voltage within the product’s enclosure that might be of su󰀩cient
magnitude to constitute a risk of electric shock. Do not open the product‘s case.
This symbol is intended to inform you that important operating and maintenance
instructions are included in the literature accompanying this product.
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Page 5FM Transmitter 2
5.) Unplug the FM Transmitter 2 from the DC Power Adapter before cleaning. Only
use a damp cloth for cleaning the exterior surfaces of the transmitter.
6.) Heat: Never put the FM Transmitter 2 in direct sunlight or behind glass such as
a car’s interior. The transmitter should be kept away from heat sources such as
radiators, heat registers, stoves, or other appliances that produce heat.
7.) DC Power Adapter: The DC Power Adapter should be positioned so it is not
walked on, pinched, or items placed on top of it. All power and other cables
should be routed away from walkways or areas of foot tra󰀩c to avoid being
tripped on. Always unplug the DC Power Adapter by gripping the adapter unit
and pulling it out of the wall socket. Never pull on the cord. Always operate the
FM Transmitter 2 using the supplied DC Power Adapter. Adapters that are not
correctly rated can damage the transmitter. If you are not sure of the correct DC
Power Adapter, consult your dealer.
8.) Never insert objects of any kind into the FM Transmitter 2 through openings. The
objects may touch dangerous voltage points or short out parts, causing damage
to the transmitter.
9.) If the transmitter is stored for long periods of time, unplug it from the wall outlet
and remove the batteries. This will prevent damage caused by lightning or power
line surges and battery acid from old batteries leaking inside of the transmitter.
10.) Never attempt to service the FM Transmitter 2 yourself. Removing the cover
may expose you to dangerous voltage levels and will void the warranty. Refer all
servicing to authorized service personnel.
11.) The FM Transmitter 2 should be serviced by qualied service personnel when:
a) Objects have fallen or liquid has been spilled into the transmitter;
b) The transmitter has been exposed to rain;
c) The transmitter does not appear to operate normally or exhibits a marked
change in performance; or
d) The transmitter has been dropped or the enclosure damaged.
12.) If liquid leaks into the transmitter, do not turn it on. The interior of the transmitter
must be fully dry or it will be damaged when power is applied.
13.) The user should not attempt to service this transmitter beyond that described in
the operating instructions. All other servicing should be referred to qualied
service personnel. The symbols on page 2 are to alert you to important operation
or servicing instructions that may appear in the owner’s manual.
Safety Instructions

Page 6 FM Transmitter 2
Table of Contents
Unpacking
The box should contain the FM Transmitter, AC Adapter, patchcord for use with
RCA Line Out, this manual and a warranty card. If anything is missing or
damaged, please contact C. Crane immediately. We recommend that you keep
the box in the unlikely event that your radio needs servicing.
Introduction/Owners Record ...................................................
Safety Instructions...................................................................
Location of Controls ................................................................
Connection to Power ..............................................................
Battery Installation ..................................................................
Tuning......................................................................................
Tips to Make it Work Better......................................................
Audio Sources..........................................................................
Troubleshooting Guide ............................................................
Service Information .................................................................
Specications ..........................................................................
3
4
7
8
8
9
10
10
11
12
13
Included Accessories:
1. AC Adapter
2. Patchcord for use with RCA Line Out.

Page 7FM Transmitter 2
Location of Controls
1.) Power Button/Timer
2.) Audio Input Indicator
3.) Input Level Control
4.) Battery Strength Meter
5.) 1/8” (3.5mm) Audio Input Cable
6.) Up/Down Tuning
7.) Frequency Display
8.) DC Input Jack
9.) Telescopic Antenna
Control Identication
9
8
7
6
5
4
2
3
1

Page 8 FM Transmitter 2
The FM Transmitter 2 will operate on the
included AC Adapter. It will also operate on
two “AA” size Alkaline batteries (optional).
1. Open the cover by pushing down on the textured
tab rmly and pushing the cover o󰀨 toward the
side of the unit, the same direction the textured
arrow is pointing.
2. Insert two “AA” batteries into the compartment
as indicated in the drawing (at left). Be sure the
negative (-) end is against the spring. Refer to
the drawing to ensure correct battery installation.
See page 7, #4 for location of Battery Strength
Meter.
Battery Installation
Connection to Power

Page 9FM Transmitter 2
To transmit audio from the FM Transmitter 2, it is best to nd a clear FM frequency
that is not being broadcast on and is free from interference.
1. To nd an unused frequency in your area, you can go to www.radio locator.com,
click on “nd vacant channels” and enter your zip code and state. It will list
vacant frequencies as “best”, “next best”, “third best’’. You can also use a radio
and scan through the entire FM band (using a digital radio will be easiest). Look for
the largest gap in between stations. Once you nd a gap, select a frequency
located somewhere in the middle. Example: If there are no stations broadcasting
between 90.1 - 93.5, select 91.5. Preferably there won’t be a station broadcasting
on either side of the frequency you have selected.
2. Now on your FM Transmitter 2, turn the power on. Use the
Up or Down Tuning Arrows to select the same frequency
as you have set on your radio. Hold the arrows down for
faster tuning.
3. With the FM Transmitter 2 plugged into the radio, or other audio source, make sure
you have adequate volume. The Audio Input Indicator LED will ash green in
normal use. If the LED light rapidly ashes red or glows steadily red, it is indicating
there is too much volume, causing distortion. Adjust the Input Level Control on the
side of the unit or adjust the volume of your audio source until the Audio Input
Indicator LED light goes back to ashing green. (See page 7 for location of
controls.)
Tuning
Antenna Orientation
Start with the antenna straight up and fully
extended. You can then orientate the antenna
to help transmit the signal a certain direction.

Page 10 FM Transmitter 2
Tips to Make it Work Better
Location
Optimum placement for the FM Transmitter 2 is usually away from other electronic
devices and objects. The higher the transmitter is located the better. The transmitter
can be helped by placing it on something that will act as a ground plane like a metal
ling cabinet or a refrigerator. Try moving it around for best performance.
Range is subject to many variables, including obstructions such as walls and FM
signal overload in your area. The range of the FM Transmitter 2 is between 30 and 75
feet, line of sight with no obstructions. Vehicle FM radios may recieve further
distances than a portable FM radio.
Auto Shut-O󰀨 Timer
The “Auto Shut-O󰀨” will not work until you activate it. Press and hold the Power
Button until the words Auto-OFF appear in the display and the transmitter begins to
cycle through the available shut-o󰀨 times. You can choose from 1, 2, 3, 4 or 8 hour
shut-o󰀨 times. If you miss the time you want, just keep holding the Power Button
down and it will start over. To select your time, let go of the button. Turning the power
o󰀨 and back on clears the Auto Shut-O󰀨.
Audio Sources
From a powered (condenser type) microphone: Connect the plug that is attached
to the FM Transmitter 2 to the Line Out of the microphone. For larger more traditional
mics, it would plug into the line out of the amp or audio mixer. Tune your radio or car
stereo to the transmitting frequency.
From your internet radio, smart speaker or computer to your home stereo:
Connect the plug that is attached to the FM Transmitter 2 to the headphone jack on
your speakers or to the audio output of the computerʼs sound card. Tune your receiver
to the transmitting frequency.
From a mobile phone or tablet to your car stereo: Connect the plug that is
attached to the FM Transmitter 2 to the Line Out or headphone jack of the phone.
Tune your car stereo to the transmitting frequency. Some products may require a
special adapter (known as a dongle) if it does not include a standard Line Out or
headphone jack.
From a portable radio to a pocket radio: Connect the plug that is attached to the
FM Transmitter 2 to the Line Out or headphone jack of your radio. Tune your pocket
radio to the transmitting frequency. This is sometimes good for o󰀩ce or warehouse
environments where reception is only available in a window or other specic location.

Page 11FM Transmitter 2
Audio is distorted:
Try adjusting the Input Level Control on the side of the FM Transmitter 2 (see page 7,
#3). If that doesn’t help, try adjusting the volume of your audio source.
No Audio:
1). Verify that the power on the FM Transmitter 2, your audio source, and your
receiver are on.
2). Try adjusting the Input Level Control on the side of the FM Transmitter 2. If that
doesn’t help, try adjusting the volume of your audio source.
3). Check your cable and make sure it is connected to the right audio source (see
page 10).
4). Check your frequency and make sure you are tuned to the correct frequency.
If none of the above options work, try the FM Transmitter 2 on another device.
Can I use the FM Transmitter 2 as a repeater?
As a matter of fact, yes, you can broadcast from one radio to another radio and then
rebroadcast from that radio to another radio. At some point, there is likely to be loss,
but it does work. Keep in mind it is still line of site. Also, it will require multiple open
frequencies for this to work.
Can I use it with a 12V plug (cigarette lighter) in my car?
Yes, but you will need one that has the ability to stepdown to the correct voltage.
Is there any way to improve the range?
Yes, here are some things that can impact the range:
• The number of FM stations in the area.
• The quality of the FM receiver and the antenna – cars actually work quite well as
receivers.
• The number of walls the signal needs to travel through, every wall presents a
challenge to the line of site transmission so the more open the area with the fewer
obstructions, the better.
• The types of walls (e.g. wood, metal, stucco, etc).
Troubleshooting Guide

Page 12 FM Transmitter 2
Troubleshooting Guide
As a hobbyist, you can also search Google on ways to improve the range of the
“FM Transmitter 2” to see what others have done.
The output power of the FM Transmitter 2 is set to the maximum limit specied by
the FCC. Most of our customers achieve 40 – 60 feet depending on their situation.
The signal will travel up to 70′ under good conditions. The FM Transmitter 2 will work
better in a noise-free environment. In a noisy environment (such as one with lots of
FM and computer noise) you can expect less range. We recommend extending the
FM transmitter 2 input cable away from the computer (or any other RF noisy device)
when connected.
In open environments with minimal radio noise, the range of an FM Transmitter 2 can
be easily increased by attaching a length of wire to the telescoping whip antenna of
the FM Transmitter 2. In our experiment, we attached a 31-inch length of wire to the
whip antenna of an FM Transmitter 2 using an alligator clip. Please keep in mind you
will need to comply with FCC rules and regulations regarding interference. (Any wire
will work. Any clip that secures the wire to the transmitter’s antenna will work). We
highly recommend our FM Reect-2 Dipole Antenna.
Check our blog at news.ccrane.com for more information.
Service Information:
If you have a specic scenario you would like to discuss, please call or email our U.S.
Based Tech Support at: [email protected]
If your unit requires service, call C. Crane at 1-800-522-8863.

Page 13FM Transmitter 2
FREQUENCY COVERAGE:
88.3 MHz - 107.7 MHz
Frequency Response 40 Hz - 15,000 Hz.
AC ADAPTER:
5V 100mA; center tip negative; 5.5mm x 2.1 mm, female tip.
DC Input Jack
3-6V; center tip negative.
AUDIO INPUT CORD:
3.5mm (1/8”) stereo, 5 ft. (extension cords are not recommended).
PATCH CORD:
1/8” (3.5mm) Female X 2 RCA Male adapter.
BATTERY LIFE:
A fresh set of 2 “AA” alkaline batteries lasts 120+ hours.
DIMENSIONS:
3” W x 3.5” H x 1” D.
WEIGHT:
5.8 oz. without batteries.
Note: Specications are subject to change without notice.
Specications

Model: FM TRANSMITTER 2 - Patent #US D483,024 S
THIS DEVICE COMPLIES WITH PART 15 OF THE FCC RULES. OPERATION IS
SUBJECT TO THE FOLLOWING TWO CONDITIONS:
1) THIS DEVICE MAY NOT CAUSE HARMFUL INTERFERENCE, AND
2) THIS DEVICE MUST ACCEPT ANY INTERFERENCE RECEIVED, INCLUDING
INTERFERENCE THAT MAY CAUSE UNDESIRED OPERATION.
Notice: Any changes or modications not expressly approved by the party
responsible for compliance could void the user’s authority to operate the equipment.
Copyright ©2020 by C. Crane, Fortuna, CA 95540
Phone: [phone] Web: ccrane.com
All rights reserved. No part of this booklet may be reproduced, in any form or means
whatsoever, without permission in writing from C. Crane.
R12-2020