Samson AH1/QE Aerobics Headset Transmitter, AH1/QV Vocal Headset Transmitter, AH1/35X Wind Instrument Transmitter, Receiver UM1, UR1, AR1 Owners Manual

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Samson AirLine
1:  A/B Receiver LEDs- When signal is being received, one of these will be lit
orange, showing you whether the (left) “A” or (right) “B” receiver is currently being
used.  The UM1 constantly scans its two antennas and automatically selects
whichever is receiving the strongest, clearest signal.  This True Diversity switching is
completely inaudible, but it effectively increases overall range while virtually elimi-
nating potential interference and phase cancellation problems.
2:  Meter- This set of three multicolor LEDs acts as a meter, indicating either     bat-
tery power or the strength of the incoming RF signal.  This meter can also be   dis-
abled altogether to conserve battery power.  See #15 on page 11 for more
information.
3:  Peak LED- This LED lights red when output signal from the UM1 is at the onset
of clipping (that is, when it is on the verge of being distorted).  If you see this light
during  operation, move the microphone further away or lower the output level of
your instrument or transmitter.  For more information, see the section entitled
“Setting Up and Using the AirLine System” on page 16 in this manual.
4:  Power switch- Use this to turn the UM1 power on and off.
5:  SQ (Squelch) Level control- This control determines the maximum range of the
UM1 before audio signal dropout.  Although it can be adjusted using the supplied
plastic screwdriver, it should normally be left at its factory setting.  See the “Setting
Up and Using the AirLine System” section on page 16 in this manual for more
information.
SAMSON
SAMSON
MAX
MINPOWER
ONSQ LEVEL
UHF   MICRO   DIVERSITY  RECEIVERBALOW MID HIGH PEAK800MHz
231
5
7
4
6
1
+
-
Guided Tour - UM1 Receiver
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							Guided Tour - UM1 Receiver
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Samson AirLine
6:  Battery holder- Insert a standard 9-volt alkaline battery here, being sure to
observe the plus and minus polarity markings shown.  We recommend the
Duracell MN 1604 type battery.  Although rechargeable Ni-Cad batteries can be
used, they do not supply adequate current for more than four hours.  
WARNING:  Do not insert the battery backwards; doing so can cause severe
damage to the UM1 and will void your warranty.
7:  Plastic screwdriver - Specially designed for use in adjusting the UM1 Squelch
Level control (see #4 on the previous page).  See the “Setting Up and Using the
AirLine System” section on page 16 in this manual for more information.
8:  Antennas (A and B)- The antenna mountings allow full rotation for optimum placement.  In normal operation, both antennas
should be placed in a vertical position.  Both antennas can be folded inward for convenience when transporting the UM1.  See the
“Setting Up and Using the AirLine” section on page 16 in this manual for more information.
9:  DC input - This jack will accept a DC input voltage of 6 - 13 volts (inner connection [tip] positive, outer connection [sleeve]
ground) from your video camera, if available.  Connect an optional Samson AC300R adapter here to charge a rechargeable 9-volt
Ni-Cad battery.
10:  Unbalanced output*- Use this unbalanced (1K Ohm max.) 1/8 (3.5 mm) mini-phone jack when connecting the UM1 to
consumer (-10) audio equipment.  Wiring is as follows: tip hot, sleeve ground.  If your video camera has stereo audio inputs, you’ll
need to use a Y-adapter that has a 1/8 (3.5 mm) mini-phone plug at one end and dual male RCA-type plugs at the other end.
11:  Audio Output Level switch- Sets the audio output level of both the balanced and unbalanced outputs (see #10 above and #14
on the following page) to -30 dBm (mic level), -20 dBm, or  -10 dBm (line level).  See the “Setting Up and Using the AirLine System”
section on page 16 in this manual for more information.
30   20   10LEVEL OUT UNBAL DC INPUT
109118
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Samson AirLine
12:  Level control- This knob sets the level of the audio signal being sent to the
headphones output (see #13 below).
13:  Headphones output - Connect a stereo headphone to this standard 1/8
(3.5 mm) mini-phone jack in order to monitor the signal being output by the UM1.
We recommend the use of 30 ohm headphones.  The level of the         headphone
signal can be set by adjusting the Level control (see #12 above).  Maximum output
is 240 mW @ 30 ohms).
14:  Balanced output*- Use this electronically balanced low impedance (600 Ohm) mini-XLR jack when connecting the UM1 to
professional (+4) audio equipment.  Pin wiring is as follows: Pin 1 ground, Pin 2 high (hot), and Pin 3 low (cold).
15:  Meter switch - This three-position switch determines the function of the front-panel UM1 meter (see page #2 on page 9).           In
the left “RF” position, the meter indicates the strength of the incoming RF signal.  In the center “BATTERY” position, the meter      indi-
cates relative battery power, showing whether the installed battery is at low (red), mid (yellow) or high (green) strength.          (Note:
When the red “low” indicator lights, performance is degraded and the battery needs to be replaced).  In the right “OFF”       position,
the meter is disabled altogether, thus conserving battery power.
*  If required, both the unbalanced and balanced outputs can be used simultaneously.
Guided Tour - UM1 Receiver
PHONESLEVEL
OUTPUTBALANCEDMETER
RF     OFF
12
13
14
15BATT.
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							Guided Tour  - AH1  Headset Transmitter
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Samson AirLine
1:  Power / Battery LED- This LED flashes once when the AH1 is first turned on and lights steadily red when there is less than 2 hours
of battery power remaining, indicating that the battery needs to be changed.
2:  Antenna- This permanently attached flexible antenna should be fully extended during normal operations.  See the “Setting Up and
Using the AirLine System” section on page 16 in this manual for more information about antenna positioning.
3:  Battery compartment - Insert a standard AAA alkaline battery here, being sure to observe the plus and minus polarity markings
shown.  We recommend the Duracell type battery.  Although rechargeable Ni-Cad batteries can be used, they do not supply adequate
current for more than four hours.  WARNING:  Do not insert the battery backwards; doing so can cause severe damage to the AH1
and will void your warranty.
+_
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Samson AirLine
4:  Mute switch- Move this switch in the direction of the arrow to mute the AH1; move it away from the arrow to unmute it and trans-
mit  audio signal.  Because the carrier signal remains during muting, no “pop” or “thud” will be heard.  Note that turning this off does
notturn off the transmitter power—it is simply a way to temporarily mute the transmission of audio signal.  If you don’t plan on using
the AH1 for extended periods, turn it off power by using the power on-off switch (see #5 below).
5:  Power switch- Move this switch in the direction of the arrow to turn power to the AH1 on; move it away from the arrow to turn
power off. (to conserve battery power, be sure to turn the AH1 off when not in use).  Be sure to mute the audio signal at your external
mixer or amplifier before turning the AH1 power on or off, or an audible pop may result.
Guided Tour  - AH1  Headset Transmitter
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Samson AirLine
AH1
As shown in the illustration above, the correct way to wear your
QV / QE Headset is over the ears, as you would wear a pair  of
eyeglasses.  Because the QV / QE Headset is specially designed to be
used up close, be sure to mount the microphone directly in front of
your lips.  To avoid feedback problems, take care not to cover the
mic capsule with your hand.
IMPORTANT NOTE: As shown in the illustration on the left, the rear
band of the headset should be positioned down at the base of the
neck, not high up on the back of the head.
AH1 transmitter with Samson QV Headset Mic 
(UHF Performance System) or Samson QE Headset Mic
(UHF Fitness System)
Right way Wrong way
Guided Tour  - AH1  Headset Transmitter
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Samson AirLine
1:  Audio-Technica Pro 35X horn microphone- This microphone is “hard-wired” to a Samson AH1 headset transmitter (see #2 below).
See the supplied Audio-Technica owners manual for microphone positioning instructions.
2:  Samson AH1 headset transmitter- See pages 13 - 14 in this manual for more information.
3:  Horn bell clamp- Use this to attach the entire assembly to the bell of your horn.  See the supplied Audio-Technica owners manual
for instructions.
Guided Tour - AH1 Horn Microphone
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Samson AirLine
The basic procedure for setting up and using your AirLine System takes only a few minutes:
1.  For your AirLine system to work correctly, both the receiver and transmitter must be set to the same channel.  Remove all packing
materials (save them in case of need for future service) and check to make sure that the supplied receiver and transmitter are set to the
same channel (a complete channel plan is printed on the inside back cover of this manual).  If these channels do not match, contact
your distributor or, if purchased in the United States, Samson Technical Support at 1-800-372-6766.
2.  Physically place the receiver where it will be used (the general rule of thumb is to maintain “line of sight” between the receiver and
transmitter so that the person using or wearing the transmitter can see the receiver).  The AR1 can be mounted on a wall if desired,
using the supplied wall mount holder.  The UR1 can be rack-mounted if desired (taking a half-rack space), using an optional Samson
adapter kit.  The UM1 can be mounted to a video camera using the supplied velcro.
3.  Extend the receiver antenna(s) and place it (them) in a vertical position.  Make sure the Power on-off switch in your AH1
transmitter is set to “Off.”
4.  Gently pry off the battery cover off the AH1 transmitter and slide it upwards and off to open the battery compartment.  Please use
care when opening this cover as undue force will destroy the hinge.
5.  Place a fresh AAA alkaline battery in the transmitter battery compartment, taking care to observe the polarity markings.  Then
replace the battery cover and gently press down on it until it clicks.  Leave the AH1 off for the moment.
6.  Make the physical cable connection between the receiver output jack and a mic level audio input of your amplifier or mixer.
The balanced XLR jack  is preferable, since it will deliver an electromagnetically cleaner signal.  If required, both the balanced and
unbalanced outputs can be used simultaneously.  If your system contains a UR1 or UM1 receiver, be sure to set its Audio Output Level
switch correctly (see pages 8 and 10 for details).  Leave your amplifier (and/or mixer) off at this time.
7.  Turn the Volume, Level or AF Level knob on the receiver completely counterclockwise.  Connect the supplied AC adapter to the
AR1 or UR1 receiver and plug it in (the UM1 receiver can also operate off battery power or a 12 volt power supply from a connected
Setting Up and Using Your AirLine System
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Samson AirLine
video camera), then plug the adapter into any standard AC outlet.  Slide the Power switch in the direction of the arrow to turn on the
receiver.  If your system contains an AR1 receiver, its “Power/ RF” LED will light steadily red; if your system contains a UR1 receiver,
its “Power” LED will light steadily red.  (Note: The UM1 receiver has no “Power” LED indicator.)
8.  Turn on the power to your AH1 transmitter (using its Power on-off switch); the “Power/Battery” LED will flash if the battery is     suf-
ficiently strong (if it lights steadily, the battery has less than 2 hours of power remaining and should be replaced).  If your system con-
tains an AR1 receiver, its “Power/ RF” LED on the receiver should change color from red to green, indicating that it is receiving valid
RF signal and is placed and positioned correctly.  If your system contains either a UR1 or UM1 receiver, one of the “A/B Receiver”
LEDs will light, showing you whether the (left) “A” or (right) “B” receiver is currently being used.  The UR1 / UM1 meter will also indi-
cate the strength of the incoming RF signal.
9.  Now it’s time to set the audio levels.  Turn on your connected amplifier and/or mixer but keep its volume all the way down.
Make sure that the AH1 transmitter is unmuted (its Mute switch should be positioned away from the arrrow).  Then set the Volume,
Level or AF Level knob on the receiver fully clockwise; this is unity gain.
10.  Speak or sing into your headset mic (or play the instrument to which the horn mic is attached) at a normal performance level
while slowly raising the volume of your amplifier and/or mixer until the desired level is reached.  The UM1 receiver allows you to
monitor the transmission signal using standard Walkman-type 30 ohm headphones connected to its headphone jack.
11.  If you hear distortion at the desired volume level, first check to see whether the “Peak” LED on the receiver is lit .  If it is not lit,
make sure that the gain structure of your audio system is correctly set (consult the owners manual of your mixer and/or amplifier for
details).  If the “Peak” LED is lit, simply move the microphone further from your mouth.
12.  Conversely, if you hear a weak, noisy signal at the desired volume level, again make sure that the gain structure of your audio
system is correctly set (consult the owners manual of your mixer and/or amplifier for details) and that the Volume, Level or AFLevel
control of the receiver is fully clockwise.  If it is and the signal coming from the receiver is still weak and/or noisy, simply position the
microphone closer to your mouth.
Setting Up and Using Your AirLine System
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Samson AirLine
13.  Temporarily turn down the level of your mixer/amplifier system and turn off the power to your transmitter, leaving the receiver on.
Then restore the previously set level of your mixer/amplifier.  With the transmitter off, the receiver output should be totally silent—if it
is, skip ahead to the next step.  If it isn’t (that is, if you hear some noise), you may need to adjust the receiver Mute (squelch) control.
When the Mute control is at its minimum setting, the AirLine system always provides maximum range without dropout; however,
depending upon the particular environment your system is used in, you may need to reduce that range somewhat in order to eliminate
band noise when the AH1 transmitter is turned off.  To do so, use the provided screwdriver to rotate the Mute (squelch) control
completely counterclockwise (to the “Min” position), then slowly turn it clockwise until the noise disappears.  If no noise is present at
any position, leave it at its fully counterclockwise “Min” position (so as to have the greatest overall range available).
14.  When first setting up your AirLine System in a new environment, it’s always a good idea to do a walkaround in order to make sure
that coverage is provided for your entire performance area.  Accordingly, turn down the level of your audio system and turn on both
the transmitter and receiver.  Then, with the transmitter unmuted, restore the level of your audio system and while speaking or singing,
walk through the entire area that will need to be covered.  As you do so, observe the RF display or meter on the receiver to make sure
that it is receiving sufficiently strong RF signal (in the AR1 receiver, the “Power On / RF” LED should always remain lit steadily green;
in the UR1 and UM1 receivers, all segments of the RF Level meter should be lit).  Always try to minimize the distance between trans-
mitter and receiver as much as possible so that the strongest possible signal is received from all planned transmission points.  If you are
using an AR1 receiver in fixed installations such as A/V or corporate conference rooms, you may find it handy to mount it in the sup-
plied wall-mount holder.  In certain environments, it may be desirable to angle the receiver antenna(s) differently from the vertical
position.  Where extended range coverage is required, the Samson UR1 true diversity receiver (set to the same   channel as the trans-
mitter) should be used.  For videography applications, the Samson UM1 micro diversity receiver should be used.
If you have followed all the steps above and are experiencing difficulties, contact your local distributor or, if purchased in the
United States, call Samson Technical Support (1-800-372-6766) between 9 AM and 5 PM EST.
Setting Up and Using Your AirLine System
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