Federal Signal Corporation
Informer Tone Alert Receiver Manual
SECTION I
SPECIFICATIONS
1-1 Electrical
•
Antenna Impedance
50 Ohms Ohms
•
Antenna Type
Rubber duck with swivel BNC connector
Frequency Range
(MHz)
33 – 50 150 – 174 450 - 470 806 – 821 851- 866
Intermodulation Rejection
per EIA-603, part 4.1.9
≥
-67
≥
-70
≥
-62
≥
-55
≥
-55
Adjacent Channel Selectivity
per EIA-603, part 4.1.6
≥
-64
≥
-80
≥
-55
≥
-50
≥
-50
Spurious Response
& Image Rejection (dBm)
per EIA-603, part 4.1.8
≥
-80
≥
-80
≥
-75
≥
-70
≥
-70
Frequency spread allowable
without re-tuning (MHz)
+/-4.9
+/-1.5 +/-10.6
+/-8.5 +/-8.5
•
Sensitivity - 12dB SINAD
≤
.35
µ
for 12dB SINAD per EIA-603, part 4.1.4
•
Decode Sensitivity
≤
0.5
µ
V
•
Operating Current
< 100 mA. Standby
<400 mA. Max.
•
Battery Capacity
Internal sealed Lead-Acid, capable of
running for 6 hours in standby mode w/
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
-37dB when unsquelched, -57dB
squelched relative to full quieting signal
w/ 1 kHz tone @ 3 kHz deviation @
rated audio out per EIA-603, part 4.1.11
1-1
SPECIFICATIONS
