Landmark FM720 User manual
Landmark FM720
Universal ALD Transmitter
NOTE:
For legal part 15 operation DO NOT
MAKE ALTERATIONS to the transmitter
or the antenna.
Components
• 1 FM720 Transmitter
• Instruction manual
• Slotted screwdriver
• RCA to RCA Cable
• ALD Wire Antenna
• 5 volt Power Supply
• Telescopic Antenna
Installation and User Information
SETTING UP YOUR TRANSMITTER
FREQUENCY SELECTION
Be sure to transmit on a frequency that is not in use locally. Operating
without a license still obligates you to refrain from causing interference.
Once you find a good channel, you should never have to change it. It
is important to make sure you do not set your transmitter to a channel that
is already in use, since this can cause interference to other listeners within
range.
This example is set
for 75.4 MHz
0=72.1
1=72.2
2=72.3
3=72.4
4=72.5
5=72.6
6=72.7
7=72.8
8=72.9
9=75.3
A=75.4
B=75.5
C=75.6
D=75.7
E=75.8
F=75.9
FREQUENCY CHART
1. Select and set your operating frequency. The Landmark S100 transmitter is
shipped preset to an operating frequency of 72.9MHz. If you experience
interference or a weak signal on this frequency, you may choose one of the
alternate frequencies as described below. (Setting frequency).
2. Connect your FM transmitter to your source VIA the RCA inputs.
3. Connect your antenna to the transmitter. If using the telescopic “stick” type
antenna, make sure the antenna connection to the transmitter is tight. If using
the included “butterfly” wire antenna, do NOT mount the antenna to any
metal material. FM transmission radiates outward and down, so please be
sure to mount this antenna in a high location.
4. Plug in the power supply. The small LED light inside the unit should illuminate,
indicating the transmitter is operational. There is no power switch on this
transmitter. IT can be turned off by simply unplugging the power supply from
the transmitter unit.
5. Turn on your Orpheus receiver and scan to your selected operating fre-
quency. In most cases, the factory setting on your transmitter will be
72.9MHz. Be sure to plug your headphones into your receiver before scan-
ning for your channel, as the receiver will not stop on channel unless the head-
phones are plugged into it.
6. Listen and enjoy.
SETTING UP YOUR TRANSMITTER
SETTING MODULATION
The volume control adjusts modulation. When used with the headset
microphone, the 9 o’clock setting is usually satisfactory. When used with a
table top conference microphone, we suggest a setting of about 3 o’clock
for the microphone volume.
Increase or decrease the volume to achieve consistent loudness and
quality sound. While listening to an Orpheus receiver, you can adjust
volume up or down on the transmitter to get a clear, loud signal without
distortion or over emphasized “S” sounds that indicate a too high micro-
phone volume setting. The same is true for adjusting auxiliary audio inputs
that can be fed to the RCA jacks in the center of the picture.
Be sure your modulation is not too high resulting in “splashy” or over-
emphasized “s” sounds and sounds of distorted audio on volume peaks.
TROUBLE SHOOTING
DO NOT OPEN the inner case or MODIFY the transmitter! This will void
the warranty and may cause your unit to operate out of FCC compliance.
When using the headset microphone, the microphone cord serves as
an antenna.
If you experience any problems or have question about setting up
your FM transmitter, please call our Technical Support department toll
free at (888) 677-4387. Our office hours are 9am-5pm Monday
through Friday.
Left Right Mic L-Aux R-Aux Power
Volume Controls RCA Jacks
