GE ApexPro Operator's Manual page 212

Technical specifications
Certifications
ApexPro receiver system
Performance specifications
Network requirements
Power requirements
E-6
IEC/EN/UL 60950-1
CAN/CSA C22.2 No.950
IEC/EN 60601-1-4
EN 55022 (Class A)
EN 55024
EN 61000-3-2
EN 61000-3-3
CE marked to the Medical Device Directive 93/42/EEC
RF module type
UHF frequency range
Frequency step resolution
Receiver system capacity
Frequency stability
Bit rate
Sensitivity
Physical
Serial protocol
System status indicators
Input voltage
Input frequency
Power consumption
Cooling
ApexPro™
GFSK and GMSK digitally demodulated
560.025 to 613.975 MHz (U.S.)
420 to 460 MHz (International)
Synthesized tuning to any transmitter; 25 kHz spacing
1 to 4 quad receiver modules (4 to 16 receivers)
± 0.0003% (3 PPM) of assigned channel frequency
10 kbps
8.7 µV (-90 dB) minimum for 1 bit error/million bits received
IEEE 802.3 compatible, physical connector via 10 base T
19200 baud, 1 stop bit, 8 data bits, no parity, XON/XOFF
flow control
7 bicolor LEDs
100 to 240 VAC
50/60 Hz
25 watts maximum with 4 quad receiver
Free air convection
2001989-200E