Gentner Digital-6 User manual

Technical Support: 1.800.945.7730 (USA) or 1.801.975.7200
2 Digital-6 User’s Guide
Contents
How to use Digital-6............3
Tuning...............................6
Frequency Chart................10
Correcting Interference.....11
Recharging........................12
Specifications.................14
Notice................................15
Compliance.....................16
Warranty...........................17
Contact Numbers..............20
Digital-6 User’s Guide, June 1998 (Rev.1.0)
© Copyright 1998 by Gentner Communications Corporation.
All rights reserved. Information in this manual is subject to
change without notice.

Technical Support: 1.800.945.7730 (USA) or 1.801.975.7200
Digital-6 User’s Guide 3
How to Use Digital-6
Power Source
The Digital-6 receiver operates on two AA-size
batteries (alkaline or rechargeable Ni-Cad). To
install the batteries, place your thumbs on either
side of the pocket clip and slide the battery cover
off. Note the polarity markings and insert the
batteries as shown.
Digital-6 (back)
Battery
Cover

Technical Support: 1.800.945.7730 (USA) or 1.801.975.7200
4 Digital-6 User’s Guide
How to Use Digital-6
Operating Instructions:
❏❏
❏❏
❏ Step 1
Plug the earphone into the earphone jack.
The earphone cable also acts as the receiver
antenna. Extend the cable fully for the best
reception and least interference.
❑❑
❑❑
❑ Step 2
Turnonthereceiverbyrotatingthevolumewheel.
The red power LED will light up. This indicates
that the receiver is ON and the batteries are
properly charged.
❑❑
❑❑
❑ Step 3
Adjust the volume to the desired listening level.
WARNING!
To avoid harm to ears, keep all receivers
OFF until the transmitter is operating at
full power. Keep volume setting at low to
mid-range at all times.

Technical Support: 1.800.945.7730 (USA) or 1.801.975.7200
Digital-6 User’s Guide 5
✰ Note:
Be sure to turn off the receiver when it is not in
use. This will help preserve the battery charge.
A white line will appear centered at the top of
the thumb wheel when in the OFF position.
❑❑
❑❑
❑ Step 4
To change presets, turn the preset selector
wheel. Thecurrentpresetwillappearintheround
window on the front of the receiver.
Digital-6
(top)
(front)
CH
6
Preset
Selector
Earphone
Jack
ON/OFF
Volume
Power
LED

Technical Support: 1.800.945.7730 (USA) or 1.801.975.7200
6 Digital-6 User’s Guide
Tuning
Changing Preset Selection:
The Digital-6’s six presets come factory set to
frequencies across the Assistive Listening Band
selected for best overall performance:
Preset Factory Setting Frequency
1 Channel 2 72.1 MHz
2 Channel 10 72.5 MHz
3 Channel 19 72.95 MHz
4 Channel 21 74.7 MHz
5 Channel 28 75.5 MHz
6 Channel 36 75.9 MHz
You may change the presets by following the
step-by-stepinstructionsonthenextthreepages.
See page 10 for frequencies corresponding to
other channels.The Digital-6 receiver is digitally
tuned. Once a channel is selected, no further
adjustments are necessary.

Technical Support: 1.800.945.7730 (USA) or 1.801.975.7200
Digital-6 User’s Guide 7
❑ Step 1
Remove the battery cover from the back of the
receiver.
❑ Step 2
RemovethetwoPhillipscasescrewsandremove
the back panel.
Battery
Cover
Digital-6 (back)

Technical Support: 1.800.945.7730 (USA) or 1.801.975.7200
8 Digital-6 User’s Guide
Tuning
❑Step 3
Turn the preset selector wheel to the desired
preset (1-6).
❑ Step 4
Using a small, flathead screwdriver, turn the
channel setting rotary switches to the desired
channel number. The left-hand switch indicates
the“ones”place. The right-handswitch indicates
the “tens” place. The example below shows the
setting for channel 19.
❑ Step 5
Push the memory button to save the channel
setting to the current preset. Repeat steps three
through five for each preset.
1
2
4
3
5
6
7
8
9
0
0
1
2
3
Ones
Place Tens
Place
Memory
Button

Technical Support: 1.800.945.7730 (USA) or 1.801.975.7200
Digital-6 User’s Guide 9
PB Board
1
2
4
3
5
6
7
890
0
1
2
3
1 90
Channel Setting
Rotary Switches
Memory
Button
Preset
Selector
✰ Note
Before changing batteries, wait one minute after
turning off the receiver. This allows the CPU to
switch from active mode to standby mode.
Otherwise memory will be lost and the presets
will return to the factory settings. Also, units
withoutpower(dueto no/dead batteries)formore
than one hour will revert to the factory presets.

Technical Support: 1.800.945.7730 (USA) or 1.801.975.7200
10 Digital-6 User’s Guide
Frequency Chart
Channel *Frequency Channel *Frequency
01 72.05 20 74.65
02 72.10 21 74.70
03 72.15 22 74.75
04 72.20 23 75.25
05 72.25 24 75.30
06 72.30 25 75.35
07 72.35 26 75.40
08 72.40 27 75.45
09 72.45 28 75.50
10 72.50 29 75.55
11 72.55 30 75.60
12 72.60 31 75.65
13 72.65 32 75.70
14 72.70 33 75.75
15 72.75 34 75.80
16 72.80 35 75.85
17 72.85 36 75.90
18 72.90 37 75.95
19 72.95 *Frequencies are in MHz

Technical Support: 1.800.945.7730 (USA) or 1.801.975.7200
Digital-6 User’s Guide 11
Correcting Interference
With any type of radio-frequency (RF) device,
other RF sources can interfere with reception.
Even the Assistive Listening Band is occasion-
ally subject to use by other types of devices.
To check for on-channel interference, take the
Digital-6 receiver to the place where the interfer-
enceistheworstandturnoffthetransmitter. The
interfering signal should now become stronger.
Set the TX-37A transmitter and the receivers to
a different channel and return to the same place.
If interference continues, try changing channels
again until you get a clear signal.
Ifmorethan oneTX-37Aisoperating in thesame
area, try to keep the channels used as far apart
as possible (3 channel spacing recommended).

Technical Support: 1.800.945.7730 (USA) or 1.801.975.7200
12 Digital-6 User’s Guide
Recharging
The Digital-6 is designed for use with regular or
rechargeable Ni-Cad batteries. Each receiver
has two recharger contacts, one on each side
(see the diagram below).
These contacts may be used in conjunction with
Gentner’s BC-10A for quick and easy recharg-
ing. Simply place the Digital-6 receiver in the
BC-10A charger when not in use and it will auto-
matically recharge for the next usage.
Digital-6
(front)
CH
6
Recharger
Contacts

Technical Support: 1.800.945.7730 (USA) or 1.801.975.7200
Digital-6 User’s Guide 13
WARNING!
Use ONLY Ni-Cad rechargeable batter-
ies in the Digital-6 when using the BC-
10A battery charger. Alkaline batteries
will damage the BC-10A. Also, do not
exceed 60 hours of continuous recharg-
ing or you may damage the batteries
and/or the receiver.
Important Recharging Information:
Fully depleted Ni-Cad batteries require approxi-
mately 18 hours to recharge. Once charged,
Ni-Cad batteries will power the Digital-6 for
approximately 30 hours. Alkaline batteries will
power the Digital-6 for approximately 40 hours.

Technical Support: 1.800.945.7730 (USA) or 1.801.975.7200
14 Digital-6 User’s Guide
Specifications
Digital-6
Dimensions: 2.63"/6.68 cm W x 3.5"/
8.89 cm H x .75"/1.91 cm D
Weight: 4 oz./113.4 g (dry)
Frequency Range: 100–10,000 Hz
Output Level: 140 mW into 32 Ohms at 10
percent thd
Signal-to-Noise Ratio: >55 dB at 1 mV
Distortion: < 2 percent
Transmission Type: FM, medium bandwidth
(60 kHz)
RF Frequency Range: 37 Channels, 72–76 MHz
Sensitivity: 0.8 uV typical, 1 mV max
for 12 dB SINAD
Controls: On-Off / Volume, Preset Selector,
Channel Selector (hidden)
Earphone Jack: Standard 3.5 mm Mono
Power Requirements: 2xAA batteries
Battery Life: 40 hours with Alkaline types

Technical Support: 1.800.945.7730 (USA) or 1.801.975.7200
Digital-6 User’s Guide 15
Notice
GentnerCommunications Corporationassumes no
liability for improper use or operation of this
equipment. The user is cautioned to operate the
volume controls at the lowest acceptable level, and
in a manner that will not cause damage to hearing.
Ear pieces and accessories should be worn using
good judgment and for their intended purpose. To
avoid entanglement, the ear pieces and neck loops
should be removed and stored promptly after use
and before sleeping.
Users are cautioned that changes or modifications
not expressly approved by Gentner
Communications Corporation could void the user’s
authority to operate the equipment.
If you experience problems with this equipment,
contact Gentner Communications Corporation.

Technical Support: 1.800.945.7730 (USA) or 1.801.975.7200
16 Digital-6 User’s Guide
Compliance
Tested to Comply with FCC Standards
The Digital-6 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 any undesired
operation.
IC Compliance
This device complies with RSS-210 of Industry Canada.
Operation is subject to the following two conditions:(1) this
device may not causeinterference, and(2)this device must
accept any interference, including interference that may
cause undesirable operation of the device.
IC Certification Number: 1970 1021 1169 A

Technical Support: 1.800.945.7730 (USA) or 1.801.975.7200
Digital-6 User’s Guide 17
Warranty
GentnerCommunicationsCorporation(Manufacturer)warrants
that this Assistive Listening System (ALS) product is free of
defects in both materialsandworkmanship. Shouldany partof
thisequipmentbedefective,Manufactureragrees, at its option,
to:
A. Repairorreplaceany defective ALS product,free of charge
(except transportation charges), for a period of one year from
the date of the original purchase, provided the owner returns
theequipmenttotheManufacturerattheaddresssetforthbelow.
No charge will be made for parts or labor during this period;
B. Furnish replacement for any defective ALS product parts in
theequipment for a periodof one year fromthe date of original
purchase. Replacementpartsshallbefurnishedwithoutcharge,
except labor and transportation;
C. RepairorreplaceanydefectiveALSaccessory,freeofcharge
(except transportation charges), for a period of 60 days from
the date of the original purchase, provided the owner returns
theequipmenttotheManufacturerattheaddresssetforthbelow.
No charge will be made for parts or labor during this period.
ThisWarrantyexcludesassembled products not manufactured
by Manufacturer whether or not they are incorporated in a
ManufacturerproductorsoldunderaManufacturerpartormodel
number.

Technical Support: 1.800.945.7730 (USA) or 1.801.975.7200
18 Digital-6 User’s Guide
THISWARRANTY ISVOID IF:
A. Theequipment hasbeendamagedbynegligence,accident,
act of God or mishandling, or has not been operated in
accordancewiththeprocedures describedinthe operatingand
technical instructions;or,
B. The equipment has been altered or repaired by other than
Manufacturer or an authorized service representative of
Manufacturer;or,
C. Adaptations or accessories other than those manufactured
or provided by Manufacturer have been made or attached to
theequipmentwhich,inthedeterminationofManufacturer,shall
have affected the performance, safety or reliability of the
equipment;or,
D. The equipment’s original serial number has been modified
orremoved.
NO OTHER WARRANTY, EXPRESS OR IMPLIED,
INCLUDINGWARRANTY OF MERCHANTABILITY OR
FITNESS FOR ANY PARTICULAR USE, APPLIES TO THE
EQUIPMENT, nor is any person or company authorized to
assume any warranty for Manufacturer or any other liability in
connection with the sale of Manufacturer’s products.

Technical Support: 1.800.945.7730 (USA) or 1.801.975.7200
Digital-6 User’s Guide 19
Manufacturer does not assume any responsibility for
1) consequential damages, 2) expenses or loss of revenue or
property, 3) inconvenience or interruption in operation
experienced by the customer due to a malfunction in the
purchased equipment. No warranty service performed on
any product shall extend the applicable warranty period.
In case of unsatisfactory operation, the purchaser shall
promptly notify Manufacturer at the address set forth below in
writing, giving full particulars as to the defects or
unsatisfactory operation. Upon receipt of such notice,
Manufacturer will give instructions respecting the shipment of
the equipment, or such other matters as it elects to honor this
warranty as above provided. This warranty does not cover
damage to the equipment during shipment and Manufacturer
assumes no responsibility for such damage. All shipping
costs shall be paid by customer.
This warranty extends only to the original purchaser and is
not assignable or transferable.
Gentner Communications Corporation
1825 Research Way, Salt Lake City, UT, 84119

Technical Support: 1.800.945.7730 (USA) or 1.801.975.7200
20 Digital-6 User’s Guide
Contact Numbers
Sales and Technical Support:
Call Toll Free (USA).......1.800.945.7730
Fax.................................1.800.933.5107
Fax-On-Demand............1.800.695.8110
International Sales andTech. Support:
Telephone..................... 1.801.972.7200
Fax................................ 1.801.977.0087
Fax-On-Demand........... 1.801.974.3661
Other Contact Information:
World Wide Web............www.gentner.com
Gentner Communications Corporation
1825 ResearchWay, Salt Lake City, UT, 84119