Informer Series Tone Alert Receiver
7
Specifications
Specifications
Table 1 Electrical
Antenna Impedance
50 Ohms
Antenna Type
Rubber duck with swivel BNC connector
Sensitivity
– 12 dB
SINAD
.35
for 12 dB SINAD per EIA-603, part 4.1.4
Decode Sensitivity
0.5
V
Operating Current
100 mA. Standby
<400 mA. Max
Battery Capacity
Internal sealed lead-acid, capable of running for six
(6) hours in standby mode with fifteen (15) minutes
of each hour generating siren beep audio at rated
audio output. (Based on Pulsed Tone audio.) Low
voltage cutoff set to 5.38 VDC +/- 0.1 VDC.
Operating Voltage
8 to 15 VDC, Unit supplied with a 9 VDC, 500 mA
power supply with a 120 VAC, 60 Hz primary Center
terminal is positive (+) on the DC connector
Hum and Noise
-37 dB when unsquelched,
-57 dB squelched relative to full quieting signal with
1 kHz tone at 60% rated system deviation at rated
audio out per EIA-603, part 4.1.11
Audio Output
1 Watt into 8 Ohms
Audio Distortion
< 5% at 85 dB output, with1 kHz tone
Audio Sensitivity
30% of rated system deviation, minimum deviation
to produce 85 dB audio output level with volume
control at full per EIA-603, part 4.1.1.7
Table 2 Bandwidth Receivers 25/30 kHz
Frequency Range
(MHz)
150
– 170
450
– 470
Intermodulation Rejection
per EIA-603, part 4.1.9
-75
-70
Adjacent Channel Selectivity
per EIA-603, part 4.1.6
-75
-70
Spurious Response
and Image Rejection (dBm)
per EIA-603, part 4.1.8
-80
-75
Frequency spread allowable
without re-tuning (MHz)
150
–
170
450
–
470
