The DSP4100 2K is an HF data modem that provides CLOVER-2000, a 2000 bits/sec., voice bandwidth, adaptive waveform specifically designed for HF radio data communications.
CLOVER-2000 measures real-time HF signal conditions and sets the most efficient modulation for these conditions.
8 bit data is sent without extra manipulation or modification. ARQ mode is simultaneously bi-directional duplex and does not require an OVER command.
FSK waveforms CCIR 476/625 TOR, P-MODE, Baudot and ASCII are included. Housed in an RF tight shielded enclosure, the DSP modem operates on 10 to 18 volts DC.
Internal modem software can be uploaded into the DSP 4100 2K into non volatile flash memory, greatly simplifying addition upgrades.
The DSP4100 2K is particulary well suited for use with lap-top terminals PC's in a portable and/or field
environment. Many third party software packages are available.
SPECIFICATIONS:
DESCRIPTION:
Format:
8 Bit Transparent
Bandwidth:
2000 Hz ( 500 - 2500 at -50 dB )
ARQ Mode Modulation:
BPSM, QPSM, 8PSM, 8P2A, 16P4A
FEC Mode Modulation:
2DPSM, BPSM, QPSM, 8PSM, 8P2A, 16P4A
Tones:
1500 Hz Center
Symbol Rate:
62.5 Per Second
Error Correcting Coding:
Reed-Solomon code: 60, 75, or 90% Code Rate
ARQ protocol:
2 Level, Multiblock Auto Adaptive Modulation
Adaptive Mode Control:
Measure S/N & Phase On All Data, Set TX mode
ARQ Thru Put:
28 To 250 Bytes/Sec. 224 To 2000 Bits/Sec.
FEC Thru Put:
14 To 167 Bytes/Sec. 112 To 1336 Bits/Sec.
FSK MODES:
DESCRIPTION:
FSK Tones:
500 - 3000 Hz, Programmable
TTY Codes:
Baudot And ASCII
TTY Rates:
45, 50, 57, 100, 110 Baud
TOR Codes:
CCIR-476 & CCIR-625
TOR Modes:
ARQ, FEC, SEL-FEC
TOR Rate:
100 Baud
P-MODE Modes:
Auto ARQ & FEC
P-MODE Rates:
100 To 200 Baud
HARDWARE:
DESCRIPTION:
Cabinet:
Extruded 5.7 x 9.6 x 1.7 Inch
DSP Processor:
Motorola DSP56001
Control Processor:
Motorola 68EC000
Analog I/O:
TI TLC-320AC01 14 Bits Codec
Memory:
Flash RAM Loaded Via Serial I/O
I/O Interface:
Serial RS-232 9.6 KBPS
Power Input:
10 to 18 VDC, .25 Ampere
Indicators:
STBY, Call, Link, Error, TX, RX
Radio Performance:
Tune in 10 Hz Steps; +/- 50 Hz Stability
Radio Connections:
Rx Audio, TX Audio, PTT, FSK, SEL-CAL 2nd Serial I/O
