Sigtronics S-A-F-E Installation Instructions - Manual (Page 11)

Receive Volume Controls (REC VOL) are general volume
controls, meant to provide overall listening level for all three
radios simultaneously - A/C radio, FM radio, and AUXiliary
radio. Finite volume adjustments of any individual radio
should be done by altering the radio volume control at the
radio itself.
Once the radios are selected, Officer 1 or 2 can transmit at
any time simply by pressing their PTT switch. The two Crew
positions cannot transmit on the radios. When one position
transmits, several things take place automatically to the
transmitting side of the SAFE unit:
— The intercom between the two sides of the SAFE unit is
turned off.
— The Auxiliary audio, if selected, is muted.
— The receive audio of the radio not selected by the XMIT
SELECT switch is muted, regardless of the position of the
BOTH/OFF/AUTO switch.
— If Officer 1 is transmitting, both Crew headset microphones
are muted.
— The selected radio is put into transmit mode.
— The headset microphone audio (your voice) is sent to the
selected radio.
— 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 RECeive VOLume control
adjusts the volume level of the sidetone that you hear in
your headset.
The non-transmitting side of the SAFE is not affected
(except for intercom) when the other side transmits. The
non-transmitting side can monitor the transmissions of the
other side by simply selecting the same radio on his side of
the SAFE. Of course, when the PTT switch is released, (stop
transmitting) all functions return to normal, instantly and
automatically.
Simultaneous Transmit is the most attractive and powerful
feature of the SAFE. Both Officers 1 and 2 can transmit at the
same time - either on separate radios or on the same radio
transmitter! When on different radios, neither Officer position
will interfere with the other’s communications. For example,
if using the SAFE on an airport crash vehicle, Officer 2 can talk
to air traffic control while Officer 1 talks on the emergency
dispatch radio, or visa versa. On the other hand, they can
also transmit on the same radio transmitter. If, for example,
Officer 1 is talking on one of the radios, Officer 2 can jump
right in and add to the conversation simply by pressing his
PTT switch. Both voices will be heard by the receiving station.
NOTE: Only the A/C radio and the FM radio can be transmitted
on. The AUXiliary input is for listening only. It can be used
for listening to a scanner, monitoring the audio portion of
a video camera, listening to background music, and many
other possibilities.
SAFE SPECIFICATIONS
Input Voltage: .......................................11-34 VDC
Nominal Current: .................................0.08 Amps
Maximum Current: ..............................0.18 Amps
Weight: ....................................................24 oz.
Unit Size (w/o bracket): ......................3.75 x 6.25 x 2.5 inches
Overall Size (w/ bracket): ................... 4.25 x 7.25 x 2.5 inches
plus cable access
ONE 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 one
year 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 responsibility 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
service charges.
To expedite factory service work, contact Sigtronics Service
Department and explain the problem. All correspondence
relative 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
M-F 8:00 am to 4:30 pm Pacific Time
Web Site: www.sigtronics.com
1-8-2007 P/N 700061 safeinst Rev F
page 11