Sigtronics EAI Operating Instructions - Manual (Page 12)

• Sidetone is generated and sent to your headphones.*
* Sidetone is a portion of the transmitted voice signal sent
back into your headset so that you can hear what you are
saying while transmitting. The intercom VOLume control
adjusts the volume level of the sidetone that you hear in
your headset. The other headsets will also hear the transmis-
sion sidetone. Of course, when the PTT switch is released,
(stop transmitting) all functions return to normal, instantly
and automatically.
For Dual Radio Units - EAI-D4 and EAI-D6:
The operation of the dual radio EAI units are identical to
that of the single radio units except for the addition of radio
selection:
TWO YEAR WARRANTY
Every Sigtronics product has been carefully inspected before shipment. We guarantee to correct any defect caused by faulty
material or workmanship free of charge to the user who originally purchased the product for a period of two years from the
original purchase date. Our obligation assumed under this guarantee is limited to the replacing of any part or parts which
prove to our satisfaction, upon examination to have been defective, and which have not been misused or carelessly handled.
The complete unit must be returned to our factory, transportation charges prepaid. We reserve the right to decline respon-
sibility where repairs or replacements have been made or attempted by others. No other guarantee, written or verbal, on our
products is authorized by us.
Repairs required due to abuse, misuse, damage or normal service beyond the warranty period will be subject to normal ser-
vice charges.
To expedite factory service work, contact Sigtronics Service Department and explain the problem. All correspondence rela-
tive to service work should include model and serial number. Frequently problems can be resolved by phone. The Sigtronics
number is located below.
Sigtronics Installation Hot Line Number:
1-800-367-0977 ext. 8
M-F 8:00 am to 4:30 pm Pacific Time
www.sigtronics.com
EAIINST Rev F 1-8-2007
Radio Selection of both Radio 1 and Radio 2 radios are pro-
vided by two switches.
1. RADIO 1/ RADIO 2 (TALK) determines the radio you wish
to transmit on.
2. AUTO / BOTH (LISTEN) selects which radio(s) you receive
or hear in your headset.
a) “ AUTO” position allows you to hear the radio that the
RADIO 1 / RADIO 2 switch is set to.
b) “ BOTH” position permits you to hear both the radios at
the same time.
EAI Specifications
Input Voltage: 11 - 34 VDC
Nominal Current: 0.06 Amps
Maximum Current: 0.10 Amps
Intercom Unit Size: 2.5 x 1.06 x 4.2 inches
Radio Adapter Unit Size: 4 x 2.9 x 2 inches
Weight: 12 oz. (not including cables and hardware)
12