Energy and Lifesaving Devices Inc. MA-T1 Manual Do Utilizador
MertsAlert Transmitter Manual
Page 6 of 6
Specifications
Configuration Transmit-only
unit
and Receive-only unit, operating as
a pair.
Frequency of operation
ISM Band
Fixed center frequency: 915 MHz
Fixed center frequency: 915 MHz
RF Power Output
-1 dBm, spread over a 500KHz bandwidth
Transmitter duty cycle
10% Duty Cycle on a single channel when alert is
activated. No transmitted power when an alert is not
activated.
activated. No transmitted power when an alert is not
activated.
Modulation
Wideband FSK with additional spectral randomization
using digital encoding algorithms.
Deviation is +/-235KHz.
using digital encoding algorithms.
Deviation is +/-235KHz.
Antennas Transmitter:
- single, external dipole antenna, omni-directional
pattern, 2dB gain. Antenna mounting may be either
temporary inside a window or permanently mounted
on roof (whip style). Both types use reverse-polarity
SMA connectors and RG-174 coax cable.
Receiver:
- single, internal, grounded-line patch antenna.
pattern, 2dB gain. Antenna mounting may be either
temporary inside a window or permanently mounted
on roof (whip style). Both types use reverse-polarity
SMA connectors and RG-174 coax cable.
Receiver:
- single, internal, grounded-line patch antenna.
Power sources
Transmitter: nominal 13.7V vehicle power source.
Functional operating range of 3.5V to 16V.
Current requirements: 30mA, typical.
Receiver: nominal 9V user-replaceable battery.
Functional operating range of 3.5V to 16V.
Current requirements: 3mA typical average during
scan, and 15mA typical during alert.
Functional operating range of 3.5V to 16V.
Current requirements: 30mA, typical.
Receiver: nominal 9V user-replaceable battery.
Functional operating range of 3.5V to 16V.
Current requirements: 3mA typical average during
scan, and 15mA typical during alert.
Certified use
United States only. FCC Part 15.249.
FCC ID:
FCC ID:
: VEQMA-T1