Installation Guide

120 20110-142 Gemini
PD
Installation Guide
23
TRANSMITTER
Power output UHF = 10-40 watts 800 MHz = 5-35 watts
Duty cycle 20% @ full power, 30 secs. max. TX time (subject to FCC MPE limit)
Conducted Spurious -75 dBc (-38 dBm @10 W) typical
Frequency stability 1.5 ppm
FM hum and noise -45 dB max (25 kHz)
Attack time < 10 ms
Operation Simplex/half duplex
Data rates and
Modulation type
DGFSK (9600 b/s), (19200 b/s) *
SRRC4FSK (19200 b/s), (25600 b/s) *
better than –112 dBm at 19200 b/s full channel, with P/D (DGFSK)*
Packet Error Rate
(for < 1% error)
better than –110 dBm at 25600 b/s full channel, with P/D (SRRC4FSK - UHF)*
better than –109 dBm at 25600 b/s full channel, with P/D (SRRC4FSK – 800MHz)*
Protocol Dataradio Proprietary DBA
* Networks must use common modulation, bit and baud rates. Different types are not on-air compatible
DISPLAY and CONTROLS
2 status LEDs RX/TX, PWR
Environmental MIL. spec.
Environment Categories MIL Spec. 810E Other
Method Procedure
Low Pressure Operations 500.3 II
High Temperature Operations, Storage 501.3 I(A1), II
Low Temperature Operations, Storage 502.3 I(C3), II (C1)
Temperature Shock Transfer of equipment 503.3 I(AI,C2)
Solar Radiation Heat effects 505.3 I
Rain
1
Drip rain 506.3 II IEC IP54 only II
Humidity
1
Induced, Aggravated 507.3 II,III
Dust
1
Blowing dust 510.3 I IEC IP54
Vibration Ground Mobile 514.4 I(8) EIA RS-204C Forestry
Shock Functional, Bench handling 516.4 I,VI EIA RS-204C
FCC / IC CERTIFICATIONS EMISSION DESIGNATORS
FCC IC (DOC) Bit rate Baud rate Modulation UHF 800MHz
UHF EOTGPDA 773195525A 9600 9600 DGMSK 8K60FID 8K60FID
16000 16000 DGMSK 15K3FID 15K3FID
800 MHz EOTGPDB 773195643A 19200 19200 DGMSK 15K0FID 15K0FID
19200 9600 SRRC4FSK* 16K0FID 16K0FID
25600 12800 SRRC4FSK* 15K6F1D 15K6FID
16000 8000 SRRC4FSK* 8K17F1D 10K0F1D
14400 7200 SRRC4FSK* 8K67F1D 11K0F1D
* IC – Class II permissive change
1
MIL Specification not guaranteed with Gemini
PD
Lite version.