Clover Sound
You can hear Clover Sound.
NB6Z's"About Digital Modes Page"
Clover Sound
You can hear Clover Sound.
NB6Z's"About Digital Modes Page"
Hardware and original Software of HAL Communication Corp. (From Home Page).
For more information, please look at following URL. (Please contact directly for details)
Home Page is as follows (Updated 11-May-98),
HAL Corp. Home Page dated 11-May-98
HAL PCI-4000/2K HF MODEM
Now you can send error-free data at high data rates over high frequency (HF) radio links. The HAL PCI-4000/2K modem plugs into your computer and gives you the highest performance possible when running CLOVER-2000 data mode. Installation and connection to your radio equipment is simple with the included software, cables, and user-friendly interface. Sending data via HF radio is not a simple task. Ionosphere conditions constantly change, often causing distortion and errors in the received data. CLOVER-2000 mode continuously measures the actual parameters of the received signal and adjusts the transmitted signal to compensate for these inescapable problems. Whatever the conditions, CLOVER-2000 adapts to give you the highest error-free data rate possible. To assure interoperability with all other HF data radio stations, the PCI-4000/2K also includes the standard FSK data modes. Digital Signal Processing (DSP) in the PCI-4000/2K sets new standards for receive data recovery and transmit data purity when using these modes. Hear and work all of the signals - not just the loud ones. The PCI-4000/2K plugs into any PC-286 or higher personal computer, requiring one full-length I/O card slot. Complete software for all modes is provided with the PCI-4000/2K and a growing number of "3rd-party" PC-based programs are now available at little or no cost.
HAL P38 HF MODEM
The P38 is a multi-mode HF data modem that gives you top performance operation using RTTY, AMTOR, P-MODE*, and CLOVER
waveforms. The P38 is a full-sized plug-in card for PC-AT and faster personal computers. Multi-screen menu-driven HAL
software is included with each P38 modem. Many popular "third-party" user programs are also available for the P38 - W0RLI,
WINLINK, XPPCI and WF1B, for example.
The P38 is complete and ready to run. Plug-in the board, connect three phono cables (not included) to your radio,
and install the software -that's all there is to it!! Whether you want to rag-chew, chase DX, or contest, the P38 is
the modem of choice.
P38 SPECIFICATIONS
CLOVER-II
Format
4-tone emission
Bandwidth
500 Hz @ -50 dB
ARQ Mode Modulation
BPSM, QPSM, and 8PSM
FEC Mode Modulation
2DPSM, BPSM, QPSM, and 8PSM
Tones
2250 Hz Center
Symbol Rate
31.25 per second
Error Correction 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
8 to 35 bytes/second
FEC Thru-put
4 to 25 bytes/second
FSK
Rtty Codes
Baudot and ASCII
ASCII Codes
45, 50, 57, 75 Bd
RTTY Tones
1275/1445 or 2125/2295 Hz
AMTOR Code
CCIR-476 & CCIR-625
AMTOR Modes
ARQ or FEC
AMTOR Tones
1275/1445 or 2125/2295 Hz
AMTOR Rate
100 Baud
P-MODE Modes
Auto-ARQ & FEC
P-MODE Rates
100/200 Baud
HARDWARE
Circuit Board
Full-size for PC-AT
DSP Processor
TI TMS320C25-50
Control Processor
Motorola 68EC000
Analog I/O
TI TLC320AC01 14-bit Codec
Memory
Boot EPROM; RAM loaded from PC
PC Interface
PC-AT ISO Bus
PC Address
200 to 3FF Hex
PC Requirements
PC-286 Minimum '386 or '486 preferred
Radio Performance
Tune in 10 Hz steps, +/- 15 Hz stability
Radio Connection
RX Audio, TX Audio, PTT, FSK, SEL-CAL
Radio Connectors
Phono and Mini-phone
SOFTWARE
HAL Software
Included with the P38
Software Updates
Code loaded from PC hard disk. Updates available from Web page or dialup BBS (217)367-7373
3rd Party Software
For more information click on one of the following: EXPRESS, Rag-Chew, WINLINK,
W0RLI, WF1B , XPPCI .
*The word "P-MODE" is the HAL designation for a communications protocol that may also be known as "Pactor", a registered
trademark of the Spezielle Communications Systeme GmbH (SCS) firm in Hanau, Germany. HAL affirms that, to the best of its
knowledge, "P-MODE" is compatible and interoperatable with the protocol SCS calls "Pactor" and with the link establishment
and weak signal modes of the protocol SCS calls "Pactor-II".
HAL DSP4100 /2K HF MODEM
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 DSP4100/2K
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 enviroment.
Many "third party" software packages are available.
DSP-4100/2K SPECIFICATIONS
CLOVER 2000
Format
8-bit transparent
Bandwidth
2000 Hz (500-2500 @ -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
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
100/200 Baud
HARDWARE
Cabinet
Extruded 5.7x9.6x1.7 inch
DSP Processor
Motorola DSP56001
Control Processor
Motorola 68EC000
Analog I/O
TI TLC-320AC01 14-bit 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 A
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
Radio Connector
DE-9S
SOFTWARE
HAL Software
Included with DSP4100/2K
Software Updates
DSP & 68000 code uploaded via serial I/O
Option
DSP-4100 w. CLOVER-II 500Hz BW Mode
Warranty
One Year Parts and Labor