User Manual

Vytek PTX-150
Doc Ref : 7M393-1 Version C1 Page : 6
 VYTEK - 2000
2. SPECIFICATIONS
SPECIFICATIONS
PHYSICAL
Dimensions 19” rack mount, 7H x 18.3D in (178mm x 465mm)
Shipping weight 40 lbs (18 kg).
Table 2.0.1 - Physical Specifications
GENERAL
Operating voltage
110 / 220VAC±20%
Operating temperature
-15 to +55°.C
Operating humidity
0 to 95% RH @ 50°C
Modulation generation Discrete DSP in conjunction with DDS Chip set.
Modulation modes POCSAG 512, 1200 or 2400
ERMES to 6400 BPS
FLEX™ 2 level and 4 level at all data rates
Narrowband compliant deviation settings are available for 2
level modes.
Modulation characteristics Rise and fall times default to standard settings as defined by
ERMES/ FLEX™/POCSAG recommendations.
Modulation rates External clock dependant if not in POCSAG mode. Any rate
up to 6400 BPS.
Channel switching Up to 16 preset channels selectable by 4 channel lines.
Interface connection 37 pin female DIN socket provided for connection to C-net,
or other network support decoders. For POCSAG
connection, Clock input line is not required and only TX
DATA (Lbit) line is used.
Diagnostics Auto dial up system with WINDOWS based central station
monitoring software. Analogs and digital inputs are
supported by the diagnostics package. Standard alarms are
also made available on 37 pin DIN socket for connection to
network interfaces such as C-NET.
Carrier offsets
Launch Time Delay
Up to ±3000 Hz in 1 Hz steps.
0 to 40ms in 5uS steps.
Table 2.0.2 - General Specifications
RF CHARACTERISTICS
RF output power
100 Watts ±0.5dB into 50Ω
Frequency range 138 to 174MHz
Turn on time <25ms from TX ON signal to full power.
Frequency stability
Standard ±1PPM
(optional external high stability frequency source).
External frequency reference
From 5 to 15 MHz at any level from -10 to 0 dBm/ 50Ω.
External signal can be sinusoid or square wave.
Spurious performance Conducted and radiated spurii better than 70 dBc.
Adjacent channel performance Better than 70 dBc.
Table 2.0.3 - RF Characteristics