Sam Ash Music AH1K Wireless System User Manual
Sam Ash Music Corporation Wireless System
User Manual
UHF WIRELESS SYSTEM
• AH1/Q Series Aerobics and Vocal Headset Transmitter
• AH1/HM40 Wind Instrument Transmitter
• CR77 Receiver
OWNERS MANUAL
HEADSET TRANSMITTER
WIND INSTRUMENT TRANSMITTER
Introduction 4
QuickStart 6
Guided Tour - CR77 Receiver 8
Guided Tour - AH1 Headset Transmitter 11
Guided Tour - AH1 Horn Microphone 14
Setting Up and Using Your AirLine System 15
Specications 18
Channel Plan 20
Copyright 2011, Samson Technologies Corp.
V5
Samson Technologies Corp.
45 Gilpin Avenue
Hauppauge, New York 11788-8816
Phone: 1-800-3-SAMSON (1-800-372-6766)
Fax: 631-784-2201
www.samsontech.com
Table of Contents
Important Safety Information
CAUTION: TO REDUCE THE RISK OF ELECTRIC
SHOCK, DO NOT REMOVE COVER (OR BACK).
NO USER-SERVICEABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED SERVICE
PERSONNEL.
This lightning flash with arrowhead symbol within an equilateral triangle is intend-
ed to alert the user to the presence of non-insulated “dangerous voltage” within
the product’s enclosure that may be of sufficient magnitude to constitute a risk of
electric shock.
The exclamation point within an equilateral triangle is intended to alert the user to
the presence of important operating and maintenance instructions in the literature
accompanying the appliance.
ATTENTION
RISQUE D’ÉLECTROCUTION !
NE PAS OUVRIR !
WARNING
TO PREVENT FIRE OR SHOCK HAZARD. DO NOT USE THIS PLUG WITH AN EXTENSION CORD,
RECEPTACLE OR OTHER OUTLET UNLESS THE BLADES CAN BE FULLY INSERTED TO PREVENT
BLADE EXPOSURE. TO PREVENT FIRE OR SHOCK HAZARD. DO NOT EXPOSE THIS APPLIANCE
TO RAIN OR MOISTURE. TO PREVENT ELECTRICAL SHOCK, MATCH WIDE BLADE PLUG TO WIDE
SLOT AND FULLY INSERT.
If you want to dispose this product, do not mix it with general household waste. There is a
separate collection system for used electronic products in accordance with legislation that
requires proper treatment, recovery and recycling.
Private household in the 28 member states of the EU, in Switzerland and Norway may return
their used electronic products free of charge to designated collection facilities or to a retailer (if you
purchase a similar new one).
For Countries not mentioned above, please contact your local authorities for a correct method of
disposal.
By doing so you will ensure that your disposed product undergoes the necessary treatment, recovery
and recycling and thus prevent potential negative effects on the environment and human health.
Important Safety Information
1. Read these instructions.
2. Keep these instructions.
3. Heed all warnings.
4. Follow all instructions.
5. Do not use this apparatus near water.
6. Clean only with dry cloth.
7. Do not block any ventilation openings. Install
in accordance with the manufacturer’s
instructions.
8. Do not install near any heat sources such
as radiators, heat registers, stoves, or
other apparatus (including amplifiers) that
produce heat.
9. Do not defeat the safety purpose of the
polarized or grounding type plug. A polarized
plug has two blades with one wider than
the other. A grounding type plug has two
blades and a third grounding prong. The
wide blade or the third prong are provided
for your safety. If the provided plug does not
fit into your outlet, consult an electrician for
replacement of the obsolete outlet.
10. Protect the power cord from being walked
on or pinched particularly at the plugs,
convenience receptacles, and at the point
where they exit from the apparatus.
11. Only use attachments/accessories specified
by the manufacturer.
12. Use only with the cart, stand, tripod, bracket,
or table specified by the manufacturer, or
sold with the apparatus. When a cart is
used, use caution when moving the cart/
apparatus combination to avoid injury from
tip-over.
13. Unplug the apparatus during lightening
storms, or when unused for long periods of
time.
14. Refer all servicing to qualified personnel.
Service is required when the apparatus has
been damaged in any way, such as power
supply cord or plug is damaged, liquid has
been spilled or objects have fallen into
the apparatus has been exposed to rain or
moisture, does not operate normally, or has
been dropped.
15. This appliance shall not be exposed to
dripping or splashing water and that no
object filled with liquid such as vases shall
be placed on the apparatus.
16. Caution-to prevent electrical shock, match
wide blade plug wide slot fully insert.
17. Please keep a good ventilation environment
around the entire unit.
18. The direct plug-in adapter is used as
disconnect device, the disconnect device
shall remain readily operable.
19. Batteries (battery pack or batteries installed)
shall not be exposed to excessive heat such
as sunshine, fire or the like.
This equipment is intended for use in wireless microphone applications.
Equipment is intended for sale in: AT, BE, CH, CY, CZ*, DK, EE, FI*, FR*, DE*, GR*, HU, IE, IS,
IT, LV, LT*, LU, MT*, NL, NO*, PL* PT, RO, SK, SI, ES, SE, UK
*Subject to license. Please contact your national frequency authority for information on avail-
able legal use in your area. Any changes or modifications not expressly approved by Samson
Technologies Corp. could void your authority to operate the equipment.
Hereby, Samson Technologies Corp., declares that this CR88 and AG8 is in compliance with the
essential requirements and other relevant provisions of Directive 2014/53/EU. The declaration of
conformity may be consulted at:
http://www.samsontech.com/site_media/support/manuals/AirLine88_AG8_DOC.pdf
FCC Rules and Regulations
Samson wireless receivers are certified under FCC Rules part 15 and transmitters are certified
under FCC Rules part 74.
Licensing of Samson equipment is the user’s responsibility and licensability depends on the user’s
classification, application and frequency selected.
This device complies with Part 15 of the FCC rules Class B and RSS-210 of Industry & Science
Canada.
Operation is subject to the following two conditions:
(1) This device must not cause harmful interference, and
(2) This device must accept any interference received including interference that may cause unde-
sired operation. Suitable for home or office use.
NOTE: This equipment has been tested and found to comply with the limits for a Class B digital
device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable
protection against harmful interference in a residential installation. This equipment generates,
uses and can radiate radio frequency energy and, if not installed and used in accordance with
the instructions, may cause harmful interference to radio communications. However, there is no
guarantee that interference will not occur in a particular installation. If this equipment does cause
harmful interference to radio or television reception, which can be determined by turning the
equipment off and on, the user is encouraged to try to correct the interference by one or more of
the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is
connected.
• Consult the dealer or an experienced Radio/TV technician for help.
WARNING: Changes or modifications not expressly approved by the party responsible for compli-
ance could void the user’s authority to operate the equipment.
3
Welcome to Samson AirLine—the wireless system for the new millenium! Wireless microphone and instrument systems were originally
developed to eliminate cables, providing unparalleled freedom of movement. AirLine takes this concept to a new level with transmitters
so small, lightweight and aerodynamic, they are nearly invisible, providing a completely “hassle-free” user experience. To create the world’s
smallest wireless transmitters, we developed new proprietary technology. Featuring miniaturized circuitry and the ability to operate on
a single tiny AAA battery (with 14 hours typical battery life), these transmitters also feature significantly improved wireless reception and
sound quality.
Samson AirLine systems operate in the K, N, U and E bands UHF frequency range and contains a CR77 true diversity receiver (for professional
performance applications) .The AirLine UHF System combines a feather-light AH1 headset transmitter with a Samson Q Series headset
microphone, ideal for fitness and performance applications. The AirLine UHF Wind Instrument System combines the AH1 with a Samson
HM40 horn microphone. It is the first wireless system designed for brass and reed instruments that eliminates the need for a body pack and
unwieldy microphone cables that limit your movement.
In this manual, you’ll find a more detailed description of the features of all AirLine systems, as well as a guided tour through all components,
step-by-step instructions for setting up your system and full specifications. If your AirLine system was purchased in the United States, you’ll
also find a warranty card enclosed—don’t forget to fill it out and mail it! This will enable you to receive online technical support and will
allow us to send you updated information about this and other Samson products in the future. If your AirLine system was purchased out-
side of the U. S., contact your local distributor for warranty details. Also, be sure to check out our website (http://www.samsontech.com) for
complete information about our full product line.
SPECIAL NOTE for U.S. purchasers: Should your AirLine system ever require servicing, a Return Authorization number (RA) is necessary.
Without this number, the unit will not be accepted. If your AirLine system was purchased in the United States, please call Samson at 1-800-
372-6766 for a Return Authorization number prior to shipping your system. If possible, return the unit in its original carton and packing
materials. If your AirLine system was purchased outside of the U. S., contact your local distributor for information.
If you’ve had some prior experience using wireless systems, these QuickStart instructions will get you up and running with your AirLine sys-
Samson AirLine
Introduction
4
Welcome to Samson AirLine—the wireless system for the new millenium! Wireless microphone and instrument systems were originally
developed to eliminate cables, providing unparalleled freedom of movement. AirLine takes this concept to a new level with transmitters
so small, lightweight and aerodynamic, they are nearly invisible, providing a completely “hassle-free” user experience. To create the world’s
smallest wireless transmitters, we developed new proprietary technology. Featuring miniaturized circuitry and the ability to operate on
a single tiny AAA battery (with 14 hours typical battery life), these transmitters also feature significantly improved wireless reception and
sound quality.
Samson AirLine systems operate in the N, U and E bands UHF frequency range and contains a CR77 true diversity receiver (for professional
performance applications) .The AirLine UHF System combines a feather-light AH1 headset transmitter with a Samson Q Series headset
microphone, ideal for fitness and performance applications. The AirLine UHF Wind Instrument System combines the AH1 with a Samson
HM40 horn microphone. It is the first wireless system designed for brass and reed instruments that eliminates the need for a body pack and
unwieldy microphone cables that limit your movement.
In this manual, you’ll find a more detailed description of the features of all AirLine systems, as well as a guided tour through all components,
step-by-step instructions for setting up your system and full specifications. If your AirLine system was purchased in the United States, you’ll
also find a warranty card enclosed—don’t forget to fill it out and mail it! This will enable you to receive online technical support and will
allow us to send you updated information about this and other Samson products in the future. If your AirLine system was purchased out-
side of the U. S., contact your local distributor for warranty details. Also, be sure to check out our website (http://www.samsontech.com) for
complete information about our full product line.
SPECIAL NOTE for U.S. purchasers: Should your AirLine system ever require servicing, a Return Authorization number (RA) is necessary.
Without this number, the unit will not be accepted. If your AirLine system was purchased in the United States, please call Samson at 1-800-
372-6766 for a Return Authorization number prior to shipping your system. If possible, return the unit in its original carton and packing
materials. If your AirLine system was purchased outside of the U. S., contact your local distributor for information.
If you’ve had some prior experience using wireless systems, these QuickStart instructions will get you up and running with your AirLine sys-
Samson AirLine
Introduction
5
tem in a matter of minutes! Detailed instructions for setting up and using your AirLine system can be found on page 14 of this manual, and
the “Guided Tour” sections on pages 4 - 13 provide full descriptions of all AirLine component controls and displays.
1. Make sure that the supplied receiver and AH1 transmitter are factory preset to the same channel.
2. Physically place the receiver where it will be used and extend its antenna(s) vertically.
3. Set the power switch on your AH1 transmitter to the “off” position (away from the arrow) and place a fresh battery in it. Then turn the
transmitter back on momentarily; its LED will flash once and then go off if the battery is sufficiently strong. Once battery strength is verified,
turn the transmitter off again.
4. If you are using an AH1 headset microphone, position it correctly as per the illustrations on page 12. If you are using an AirLine
UHF Wind Instrument System, clamp the horn mic to your instrument as described in the supplied HM40 owners manual.
5. Turn your audio system off and make the physical cable connection between the receiver’s balanced or unbalanced output jack (if nec-
essary, both can be used simultaneously) and a mic level audio input of your amplifier or mixer. If your system contains a CR77,be sure to set
its Audio Output Level switch correctly.
6. Turn the Volume, Level or AF Level knob on the receiver completely counterclockwise. Connect the supplied AC adapter to the receiver
and plug it in , but leave its power off for the moment.
7. Turn on the receiver. If your system contains a CR77 receiver, its “Power” LED will light steadily red.
Samson AirLine QuickStart
6
8. Turn on your AH1 transmitter. If your system contains an AR1 receiver, its “Power/ RF” LED should change color from red to green, indicat-
ing that it is receiving valid RF signal and is placed and positioned correctly. If your system contains either a CR77 one of
the “A/B Receiver” LEDs will be lit, showing you whether the (left) “A” or (right) “B” receiver is currently being used. The CR77 meter will
also indicate the strength of the incoming RF signal.
9. Turn on your connected amplifier and/or mixer but keep its volume all the way down. Make sure the AH1 transmitter is unmuted. Set
the Volume, Level or AF Level knob on the receiver fully clockwise; this is unity gain.
10. Speak or sing into your headset microphone (or play the instrument connected to the horn microphone) at a normal performance level
while slowly raising the audio input control of your amplifier or mixer until the desired level is reached.
11. Do a walkaround through the intended area of coverage while observing the receiver’s “Power/RF” LED or RF Meter; it should indicate
sufficient RF reception in all areas of coverage. Reposition it (or its antenna) as necessary. If extended range coverage is required, a Samson
CR77 true diversity receiver (set to the same channel as the transmitter) should be used
12. If you hear any spurious noise from the receiver output when the transmitter is turned off, use the supplied plastic screwdriver to adjust
the receiver Squelch level control, slowly turning it clockwise to the point at which the noise disappears.
Samson AirLine
QuickStart
7
1: Antennas (A and B) - The antenna
mountings allow full rotation for
optimum placement. In normal oper-
ation, both Antenna A (the antenna on
the left) and Antenna B (the antenna
on the right) should be placed in a
vertical position. Both antennas can
be folded inward for convenience
when transporting the CR77. See the
“Setting Up and Using the AirLine
System” section on page 14 in this
manual for information about antenna
installation and positioning.
2: Volume control - This knob sets
the level of the audio signal being
output through both the balanced and unbalanced output jacks on the rear panel (see #2 and #4 on page 6 in this manual). Reference level
is obtained when the knob is turned fully clockwise (to its “10” setting).
3: Audio Meter - - This “ladder” display (similar to the VU bar meter used on audio devices) indicates the strength of the incoming audio
signal. When the “0” segment is lit, the incoming signal is optimized at unity gain; when the “+6” segment is lit, the signal is overloading.
When only the left-most “-20” segment is lit, the incoming signal is at just 10% of optimum strength. If no segments are lit, little or no signal
is being received. See the “Setting Up and the AirLine System” section on page 14 in this manual for more information.
Samson AirLine Guided Tour - CR77 Receiver / Front Panel
1
2
34
55
1
7
6
ANT. A ANT. B
VOLUME
POWER
RF METERAUDIO METER dB
0 10 25 50 75 1000 +3 +6-5-10-20
ANT. A ANT. B
SQUELCH
MIN
CR77 UHF TRUE DIVERSITY RECEIVER
MAX
8
4: Squelch control - This control determines the maximum range of the CR77 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 14 in this manual for more information.
5: A/B Receiver LEDs - When signal is being received, one of these will be lit green, showing you whether the (left) “A” or (right) “B” receiver
is currently being used. The CR77 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 eliminating potential
interference and phase cancellation problems.
6: RF (Radio Frequency) Level meter - This “ladder” display (similar to the VU bar meter used on audio devices) indicates the strength of
the incoming radio signal. When the “100%” segment is lit, the incoming RF signal is fully modulated and at optimum strength. When only
the second most left-most “10%” segment is lit, the incoming signal is at just 10% of optimum strength. If no segments are lit, little or no
signal is being received. See the “Setting Up and Using the AirLine System” section on page 14 in this manual for more information.
7: Power switch - Use this to turn the CR77 power on and off. When the receiver is on, the internal Power LED is lit.
Samson AirLine
Guided Tour - CR77 Receiver / Front Panel
9
1: DC input - Connect the supplied 12
volt 160 mA power adapter here, using
the strain relief as shown in the illustra-
tion below. WARNING: Do not substi-
tute any other kind of power adapter;
doing so can cause severe damage to
the CR77 and will void your warranty.
2: Unbalanced output* - Use this
unbalanced high impedance (5K Ohm)
1/4" jack when connecting the CR77
to consumer (-10) audio equipment.
Wiring is as follows: tip hot, sleeve
ground.
3: Audio Output Level switch - Sets
the audio output level attenuation of
the balanced output (see #4 below) to
-20 dBm (line level) or -40 dBm (mic
level). See “Setting Up and Using the
AirLine System” on page 14.
4: Balanced output* - Use this elec-
tronically balanced low impedance (600
Ohm) XLR jack when connecting the CR77 to professional (+4) audio equipment. Pin wiring is as follows: Pin 1 ground, Pin 2 high (hot), and
Pin 3 low (cold).
* If required, both the unbalanced and balanced outputs can be used simultaneously.
Samson AirLine Guided Tour - CR77 Receiver / Rear Panel
1
2
3
4
-
Using the strain relief: Gather up a loop of wire and pass it through the strain relief,
then pass the adapter plug through the loop in order to create a knot.
10
Guided Tour - AH1 Headset Transmitter
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 14 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.
+
_
11
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 transmit
audio signal. Because the carrier signal remains during muting, no “pop” or “thud” will be heard. Note that turning this off does not turn
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
12
Samson AirLine
AH1
As shown in the illustration above, the correct way to wear your Q Series
Headset is over the ears, as you would wear a pair of eyeglasses. Because
the Q Series Headsets are 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 Q series Headset Mic for perfor-
mance and fitness applications.
Right way Wrong way
Guided Tour - AH1 Headset Transmitter
13
Samson AirLine
1: Samson HM40 horn microphone - This microphone is “hard-wired” to a Samson AH1 headset transmitter (see #2 below). See the sup-
plied HM40 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 HM40 owners manual for instructions.
Guided Tour - AH1 Horn Microphone
14
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 materi-
als (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 chan-
nel (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 trans-
mitter so that the person using or wearing the transmitter can see the receiver). The CR77 can be rack-mounted if desired (taking a half-rack
space), using an optional Samson adapter kit.
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 bal-
anced XLR jack is preferable, since it will deliver an electromagnetically cleaner signal. If required, both the balanced and unbalanced out-
puts can be used simultaneously. If your system contains a CR77 receiver, be sure to set its Audio Output Level switch correctly (see
pages 7 and 9 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 CR77
receiver and plug it in 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 a CR77 receiver, its "Power" LED will light steadily red.
Setting Up and Using Your AirLine System
15
Samson AirLine
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 sufficiently
strong (if it lights steadily, the battery has less than 2 hours of power remaining and should be replaced). If your system contains either a
CR77 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 CR77 meter will also indicate 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.
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 AF Level 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.
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 Squelch control. When the Squelch
control is at its minimum setting, the AirLine system always provides maximum range without dropout; however, depending upon the par-
ticular environment your system is used in, you may need to reduce that range somewhat in order to eliminate band noise when the AH1
Setting Up and Using Your AirLine System
16
Samson AirLine
transmitter is turned off. To do so, use the provided screwdriver to rotate the 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 trans-
mitter 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 CR77 receivers, all segments of the RF Level meter should be lit). Always try to minimize the
distance between transmitter and receiver as much as possible so that the strongest possible signal is received from all planned transmis-
sion points. 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 CR77 true diversity receiver (set to the same channel as the transmitter) 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
17
Samson AirLine
Transmitter (AH1)
Operating Power Voltage 1.5V Typical, 1.05V Minimum, 2V Maximum
Current Consumption 60mA Typical
Battery Life 14 Hours (AAA size battery)
RF Output Power (5mW) -4dB Minimum, +3dB Maximum
Frequency Stability -40kHz Minimum, 40kHz Maximum
Spurious 1µW
Modulation Factor 13kHz Minimum, 15kHz Typical, 17kHz Maximum, Input 1kHz-20dBv
Input Impedance (Mic) 2K ohms
THD < 2% (1 kHz deviation 15kHz)
Audio Frequency Response 50Hz - 15kHz (±3.5 dB)
Controls Power Switch, Mute Switch Volume
Input 2.5mm Stereo Jack
Indicators Power On (LED Flash), Low Battery (LED On
Specifications
18
Samson AirLine Specifications
CR77 Receiver
Receiving Frequencies USA 489-492MHz, 642-646 MHz (N1-N6), Europe 863-865 MHz (E1-E4)
Oscillation Type PLL
De-emphasis 50 msec
IF Frequency 10.7 MHz
A/B Antennas 1/4 Wavelength Rod
In/Out DC Inlet, Balanced Output, Unbalanced Output
Display (LED) Receiver A/B (Green), Power On (Red), AF Level (6 segment), RF Level (6 segment)
Level Control Audio Level Volume, Squelch Level Control
Operating Temperature 0° C / 50° C
Operating Voltage 15 Volts ±10%
Current Consumption 160 mA (all LED lights illuminated)
Sensitivity 18 dBm (@ THD 2%)
Squelch Sensitivity 0 - 40 dBm (Adjustable)
Selectivity ±150 kHz (AF Out Ratio -60 dB)
T.H.D. (Overall) 1% Max (@AF 1 kHz, RF 46 dBu)
S/N Ratio (Overall) 90 dB (w/IHF-A Filter)
Residual Noise 90 dBv (w/IHF-A Filter)
Band Squelch ±40 kHz / ±100 kHz (RF IN: 46 dBu EMF)
AF Frequency Response 50 Hz - 15 kHz (±3 dB overall)
Audio Output Level - Unbalanced 0 dBv
Audio Output Level - Balanced (slide switch selectable) -20 dBm (Line), -40 dBm (Mic)
Audio Output Impedance - Unbalanced 5 k Ohms
Audio Output Impedance - Balanced 600 Ohms
19
Samson AirLine AirLine Channel Plan
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Samson Technologies Corp.
45 Gilpin Avenue
Hauppauge, New York 11788-8816
Phone: 1-800-3-SAMSON (1-800-372-6766)
Fax: 631-784-2201
www.samsontech.com
Samson Manual for Airline AH1 091005 v4.4