6 GUARDIAN SPECIFICATIONS
These specifications are typical and subject to change without notice.
Model Numbers
140-5015-50x
140-5026-50x
140-5046-30x
140-5046-50x
140-5096-50x
Frequency Range (MHz)
136 – 174 MHz
215 – 240 MHz
406.125 – 470.000 MHz
450.000 – 511.975 MHz
928 – 960 MHz
Channel Bandwidth
12.5 kHz
25 kHz
12.5 kHz
25 kHz
12.5 kHz
25 kHz
Modes of Operation Simplex, Half-Duplex, Duplex
Frequency Increment 1.25 kHz
10 – 30 VDC, Negative GND
The Guardian is UL approved when powered with a listed Class
2 power supply.
RF Impedance 50 Ω
Operating Temperature - 30° to + 60° C
- 40° to + 85° C, 95% non-condensing RH
Operating Humidity 5% to 95% non-condensing RH
Rx Current Drain at 25° C DC Input 10 V DC Input 20 V DC Input 30 V
520 mA (max.)
450 mA (typ.)
270 mA (max.)
240 mA (typ.)
190 mA (max.)
170 mA (typ.)
Max. Power
5.8 A (max.)
3.6 A (typ.)
2.5 A (max.)
1.8 A (typ.)
1.6 A (max.)
1.2 A (typ.)
30 dBm
(1 W)
1.6 A (max.)
1.2 A (typ.)
0.8 A (max.)
0.6 A (typ.)
0.6 A (max.)
0.4 A (typ.)
Cold start 500 milliseconds
Nominal Dimensions 5.50 in. W × 2.125 in. H × 4.25 in. D (13.97 × 5.40 × 10.8 cm)
Mounting Options Mounting plate/pattern and DIN Rail
Fan Output 5 VDC, 400 mA max.
Tx Frequencies
136 – 174 MHz
215 – 240 MHz
406.125 – 470.000 MHz
450.000 – 511.975 MHz
928 – 960 MHz
Carrier Output Power 1-10 Watts Adjustable 1-10 Watts Adjustable 1-8 Watts Adjustable
Duty Cycle 100% (Power Foldback Allowed for High Temperatures)
Radiated Spurious Emissions Per FCC Regulatory
Conducted Spurious Emissions Per FCC Regulatory
Transmitter Stability into VSWR > 10:1 (Power Foldback Allowed)
Rx to Tx Time < 2 ms (Standard)
Guardian™ Serial Modem or Analog Radio for Licensed Spectrum PN 001-5006-000 Rev. 3 | Page 57
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