User's Manual
Table Of Contents
- NOTICE
- CAUTIONS AND WARNINGS
- INTRODUCTION
- FEATURES AND BENEFITS
- SETTING UP THE PDL HIGH POWER BASE
- SETTING UP THE PDL LOW POWER BASE/REPEATER (PDL
- SETTING UP THE PDL ROVER
- TIPS AND TECHNIQUES FOR BEST PERFORMANCE
- FCC RULES AND REGULATIONS
- SERVICE AND SUPPORT
- WARRANTY
- APPENDIX A - SAFETY INFORMATION
- APPENDIX B - PIN-OUTS AND CONNECTORS
- APPENDIX C - TECHNICAL SPECIFICATIONS
46 Notes
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, 9,600, 4800 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.