Samson AirLine 77 AH7 User manual

OWNER'S MANUAL
Wireless Systems

2
Copyright 2018, Samson Technologies Corp. v2.1
Samson Technologies Corp.
278-B Duffy Avenue
Hicksville, NY 11801
www.samsontech.com
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.
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, re-
covery and recycling and thus prevent potential negative effects on the environment and human
health.

AirLine AH7 Wireless System 3
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 undesired 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
compliance could void the user’s authority to operate the equipment.
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
available 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 CR77 and AH7 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/AirLine77_AH7_DOC.pdf
Important Safety Information

4
Introduction
Welcome to Samson AirLine, the original micro-wireless microphone systems. 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
8 hours typical battery life), these transmitters also feature significantly improved wireless
reception and sound quality.
The AirLine System combines a feather-light AH7 headset transmitter with a Samson Qe
Fitness or DE10 low profile headset microphone.
In these pages, you’ll find a detailed description of the features of the AirLine Wireless System,
as well as step-by-step instructions for its setup and use. If your wireless system was purchased
in the United States, you’ll also find a registration card enclosed—don’t forget to follow the
instructions so that you can receive online technical support and so that we can send you updated
information about this and other Samson products in the future. Also, be sure to check out our
website www.samsontech.com for complete information about our full product line.
We recommend you keep the following records for reference, as well as a copy of your sales
receipt:
Receiver Serial number: _________________________________________
Transmitter Serial number: ______________________________________
Date of purchase: ______________________________________________
If you have any questions or comments regarding the AirLine Wireless Microphone System or
any other products from Samson, do no hesitate to contact us at [email protected].
With proper care and maintenance, your AirLine Wireless System will operate trouble-free for many
years. Should your AirLine Wireless System ever require servicing, a Return Authorization (RA)
number must be obtained before shipping your unit to Samson. Without this number, the unit will not
be accepted. Please visit www.samsontech.com/ra for an RA number prior to shipping your unit. Please
retain the original packing materials and, if possible, return the unit in its original carton. If your
AirLine Wireless System was purchased outside of the United States, contact your local distributor for
warranty details and service information.

AirLine AH7 Wireless System 5
1. 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. The antennas
can be folded inward for convenience when transporting the CR77.
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. Reference level is obtained
when the knob is turned fully clockwise (to its “10” setting).
3. AUDIO METER - This display 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.
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.
5. ANT. A/B Antenna Indicators - When signal is being received, one of these will be lit green,
showing you whether the (left) “A” or (right) “B” antenna is currently being used.
6. RF METER (Radio Frequency) - This display 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.
7. Power switch - Use this to turn the CR77 power on and off. When the receiver is on, the
internal Power LED is lit.
Guided Tour - CR77 Receiver / Front Panel
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
1
2
34
55
1
7
6

6
1. DC Input - Connect the supplied power adapter here, using the strain relief as shown in
the illustration below. WARNING: Do not substitute 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 (5 kΩ) 1/4” jack when
connecting the CR77 to consumer (-10 dBV) audio equipment. Wiring is as follows: tip
hot, sleeve ground.
3. MIC/LINE Switch - Sets the audio output level attenuation of the balanced output to -20
dBm (line level) or -40 dBm (mic level).
4. BALANCED OUTPUT* - Use this electronically balanced low impedance (600 Ohm) XLR
jack when connecting the CR77 to professional (+4 dBu) 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.
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.
Guided Tour - CR77 Receiver / Rear Panel
-
1234

AirLine AH7 Wireless System 7
1. Power switch - Press and hold this switch to power on and off the AH7 transmitter (to
conserve battery power, be sure to turn the AH7 off when not in use). To eliminate the
possibility of an audible pop, mute the audio signal at your external mixer or amplifier
before turning the AH7 power on or off.
2. Power / Battery LED - This LED flashes once when the AH7 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.
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
AH7 and will void your warranty.
4. Antenna - This permanently attached flexible antenna should be fully extended during
normal operations.
Guided Tour - AH7 Transmitter
+
_
3
1
4
2

8
As shown in the illustration, the correct way to wear your Qe fitness headset microphone, is
over the ears, as you would wear a pair of eyeglasses. Because the Qe microphone is specially
designed to be used up close, be sure to position the microphone directly in front of your lips.
To avoid feedback problems, take care not to cover the microphone capsule with your hand.
Wearing the AH7 Headset Microphone
Position the headset over your head so
that the body of the transmitter is behind
your head. Adjust the headset so that it fits
comfortably on your ears and is secure against
your head.
Note: If wearing glasses, it is recommended
to put the AH7 transmitter on first than place
glasses over the transmitter.
For added comfort and fit, the headset
includes an adjustable headband. To fit the
headband, pull elastic strap over the ear
hooks and locate in front of the stop point (A).
For larger sizing, the headband can be moved
behind the stop point (B) or completely
removed by sliding the elastic band over the
ear hooks and microphone capsule.
Note: When removing the headband, first take
off the microphone windscreen.

AirLine AH7 Wireless System 9
DE10 Headset
Mic Positioning
Fitting the DE10 Headset
Position the DE10 microphone element
about 0.25” –1” behind the corner of your
mouth. Since the DE10 is an omnidirectional
capsule, the end of the microphone does
not need to be facing your mouth. To avoid
breadth noise and p-pops, do not place the
microphone directly in front of your mouth.
If the microphone is too far away from your
mouth you will need to increase the gain and
reduce isolation.
To minimize additional noise, do not locate
the microphone tight against your cheek.
The DE10 headset can be sized by sliding the
ear hooks to fit snug around your head. If the
DE10 is loose and will not stay in place, slide
the ear hook wires back for a tighter fit.
Adjust the microphone position by holding
the left ear hook wire and slide the boom
forward or back. For optimum performance
the microphone should be close to the
skin and towards the corner of the mouth,
approximately a half inch away.
Position the moisture guard ring as close to
the capsule as possible.
For outdoor use and to help reduce p-popping,
use the included windscreens.

10
AH7 Transmitter
Operating Power Voltage 1.5V Typical, 1.05V Minimum,
2V Maximum
Current Consumption 60mA Typical
Battery Life 8 Hours (AAA size battery)
RF Output Power (5mW) -4dB Minimum, +3dB Maximum
THD < 2% (1 kHz deviation 15kHz)
Audio Frequency Response 50Hz - 15kHz (±3.5 dB)
Controls Internal Power Switch
Indicators Power On (LED Flash)
Low Battery (LED On)
CR77 Receiver
Oscillation Type PLL
Antennas 1/4 Wavelength Rod
Indicators 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 12 Volts ±10%
Current Consumption 160 mA (all LED lights illuminated)
Sensitivity 18 dBm (@ THD 2%)
Squelch Sensitivity 0 - 40 dBm (Adjustable)
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)
AF Frequency Response 50 Hz – 15 kHz (±3 dB overall)
Audio Output Level Unbalanced: 0 dBv
Balanced: -20 dBm (Line), -40 dBm (Mic)
Audio Output Impedance Unbalanced: 5 kΩ
Balanced: 600 Ω
At Samson, we are continually improving our products, therefore specifications and images are
subject to change without notice.
Specifications

AirLine AH7 Wireless System 11
Channel Plan
K-Band E-Band*
Ch Freq Ch Freq
K1 489.050 MHz E1 863.125 MHz
K2 490.975 MHz E2 863.625 MHz
K3 492.425 MHz E3 864.500 MHz
K4 477.525 MHz E4 864.875 MHz
K5 479.100 MHz
K6 480.475 MHz
* Not for use in the USA and Canada. For questions regarding available channels in your area
contact your local Samson distributor.

Samson Technologies
278-B Duffy Ave
Hicksville, NY 11801
Phone: 1-800-3-SAMSON
www.samsontech.com
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