General |
Serial Port Interface |
RS-232 compatible. 1200 to 38400
baud operation with 1 start, 8 data, optional parity, and one stop bit.
|
Power Supply |
9-16 VDC. PDL Rover
quiescent/receive power consumption 0.3W. PDL High Power Base
quiescent/receive power consumption is 1.9W. PDL High Power Base in the
low/high RF power setting
consumes 13W/125W during transmission. The PDL Low Power Base
quiescent/receive power
consumption is 0.9W. The PDL Low Power Base when transmitting consumes
5W/11W. (PDL Base
power consumption measured at 12.5 VDC.)
|
Radio |
Frequency Ranges |
Contact factory for available
frequency ranges. Synthesized frequency control with approximately 1600
channel capability. Channel spacing 25/12.5 kHz. 2.5 ppm frequency
reference. |
Transmitter (PDL Base) |
Carrier power 2-Watts or
35-Watts nominal for the High Power Base. Carrier power for the Low
Power
Base is factory programmable for the 0.5W or 2W. Output impedance
50-ohms. Modulation distortion is
less than 5%. Transmitter attack time < 18 ms. Spurious and harmonic
FM -55 dBc. FM hum and
noise -40 dBm. |
Receiver |
Sensitivity -116 dBm or better
(12dB SINAD). Selectivity for the PDL HPB and Rover is >-60 dB.
Selectivity for the PDL LPB is >-70dB. (9600, GMSK, 25 KHz), and
>-60 dB (19,200, 4LFSK, 25 KHz).
FM hum and noise -40 dB. Conducted spurious -65 dB. Carrier detect
attack time 2 ms. |
Modem |
Transmission Rate |
19,200 or 9,600 bits per second
(Four-level FSK)
9,600 or 4,800 bits per second (GMSK)
|
Transmission Protocols |
Transparent, packet switched,
auto-repeater, fast asynchronous, Trimtalk™.
|
Forward Error Correction and
Detection |
With FEC enabled, data is
encoded by a block code. The data is interleaved in blocks of 20 words,
giving
burst error correction capabilities for up to 20 consecutive corrupted
bits. 16-bit CRCs are generated and
sent with every block of data providing 100% error detection for burst
errors shorter than 16 bits, and
99.9984% detection of all other burst errors. |
Modulation |
Gaussian Minimum Shift Keying
(GMSK) with BT of 0.5 (4800, 9600 bps link rate). Four-level FSK
(9600, 19200 bps link rate). |
Environmental |
Size |
PDL LPB and Rover - 8.25"L x
2.40"D (21.0cmL x 6.1cmD) |
Weight |
PDL LPB - 0.65 lbs. (0.30 Kg) |
Shock and Vibration |
Per ANSI/ASAE EP455 |
Protection |
Per IEC 144/855420 I.P. 66
Dust-tight and watertight |
Temperature Range |
PDL Rover Operating - -4 to 140
F (-20 to 60 C)
PDL Rover Storage - -4 to 185 F (-20 to 85 C)
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