Transcript
Digital IF Receiver SINGLE/DUAL/QUAD CHANNEL MODEL 4423 Features
General Description
Up to 4 Independent Channels per 2U Box Form Factor 2U Rack Mount Chassis 2 Input Ports (per Channel) Tunable Center Frequency Bands 1 kHz to 180 MHz Wide Dynamic Range > 80 dB Programmable Acquisition & Tracking Range Multi-Waveform Demodulation BPSK, QPSK, OQPSK UQPSK *, AQPSK * SOQPSK (ARTM Tier 1) * Analog FM & PCM/FM * GMSK* Multi-Symbol PCM/FM * 3 Demodulators (Per Channel) PCM / PSK * 1 RF, 2 SC * (Per Channel) 2 Bit Synchronizers (Per Channel) * 50 bps to 10 Mbps BPSK (20 Mbps *) 50 bps to 20 Mbps QPSK (40 Mbps *) 2 Viterbi Decoders * R=1/2, 1/3, 2/3, 3/4/ 5/6, 7/8 Reed-Solomon * HDLC / AX.25 (e.g. CUBESAT) * 3 Frame Synchronizers per Channel Byte Aligned Ethernet Data Output * Best Source Selector Compatible Output * Tracking Antenna Control Support * Envelope / Coherent AM * SNR * IRIG-B * Input, Output Chapter 10 Compatible Output * Remote Control Ethernet & RS-232 (Std) IEEE 488 *
* OPTIONAL
The Model 4423 Digital IF Receiver houses up to 4 high performance receiver channels in a 2U chassis. Each independent channel is an integrated solution consisting of an IF Signal Processor, 3 Demodulators, 2 Bit Synchronizers and 3 Frame Synchronizers. This state-of-the art receiver provides a compact, cost competitive, flexible solution to a wide variety of communications link scenarios. The Model 4423 is user programmed to select one of two inputs for processing. The input frequencies within the factory-configured Tunable Center Frequency Band are demodulated. The demodulation process as well as baseband bit synchronization process is totally performed in the digital domain. Signal acquisition is performed by scanning the IF within the programmed acquisition band centered about the selected Carrier frequency. PM / PSK waveforms are additionally scanned for acquisition at the subcarrier frequencies. Once signal acquisition is complete, synchronized signal tracking is performed whereby continuous validation of the lock state is maintained. A variety of FEC decoders are available and fully programmable frame synchronizers are included for pattern detection. With the Bit Synchronizer option, data is output via a pair of TTL and RS-422 outputs. The unit supports an optional Ethernet output mode by which frame synchronized byte aligned data can be transported. UDP/IP transport is provided for raw data and, optionally HDLC/AX.25 data. IRIG-106 Chapter 10 compatible output is also available. An Encapsulated data and data-quality output may be included that supports the GDP Best Source Selector products.
EXT REF
REF OSC
PM DEMOD
IN1
IN2
INPUT PROCESSOR
PSK DEMODS FM DEMOD
BIT SYNCS/ DECODERS/ FRAME SYNCS
ANALOG PORT1
ANALOG1
ETHERNET DATA PORT
ETHERNET
TTL/ RS422 DATA PORT
Q DATA/CLK
I DATA/CLK
Control/Status All Functions
CONTROL
CONTROL / STATUS: RS-232, (Optional RS-485, Ethernet)
300 Welsh Road · Building 3 · Horsham, PA 19044-2294 Phone: 215-657-5270 Fax: 215-657-5273
ANALOG PORT2
SERIAL COMBINED/ CLK ANALOG2
URL: http://www.gdpspace.com E-mail:
[email protected]
Digital IF Receiver MODEL 4423 CHANNEL SPECIFICATIONS
Input:
Input Ports Center Frequency Input Filters Dynamic Range Input Impedance VSWR Demodulator(s): IF Acquisition / Tracking Range Loop Bandwidth PM Demodulator Frequency Response Modulation Index PSK Demodulators Types Modulation Waveforms Locking Threshold PCM/FM Demodulator Data Rate Bit Synchronizer(s): (Option) Bit Rate
2 1 kHz to 180 MHz or 180 MHz to 1100 MHz Selectable filter bandwidths > 80 dB 50 ohms < 1.5:1 255 kHz 0.01% to 1% of Bit Rate (Analog PM 2 Hz to 20 KHz) 100 Hz to 15 MHz 0 to 3.0 Radians 1 IF, 2 SC (optional) BPSK, QPSK, OQPSK, UQPSK *, AQPSK *, GMSK *, SOQOSK ARTM Tier 1 (Optional) 6 dB Eb/No 50 bps to 20 Mbps (30 Mbps Optional) 50 bps to 10 Mbps BPSK (20 Mbps Optional) 100 bps to 30 Mbps QPSK (40 Mbps Optional) NRZ-L,M,S; BI-L,M,S NRZ-L Viterbi Rate 1/2, 1/3, 2/3, 3/4, 5/6, 7/8 ; Reed Solomon
Input Codes Output Codes Decoders *
Descrambler V.35 / V.36 (CCITT/ Intelsat) Frame Pattern Detector: (Option) 64-bit FSP w/ full Mask and Strategy Data Outputs: Analog TTL, RS422 (Standard) I, Q, COMBINED Ethernet Data Output (IRIG-106 Ch-10, HDLC/AX.25)* Encapsulated Data & Quality Output that supports GDP Best Source Selector (Optional) Control Interface: RS-232 & Ethernet (Standard) Ethernet (Optional) Environment: Temperature 10°C to 50°C Operational; -40°C to 85°C Storage Status Outputs: Signal Present, Carrier Lock, Bit Synchronization Lock, Viterbi Lock, Frame Lock, Doppler
Ordering Information MD4423-00 OP4423-01 OP4423-02 OP4423-03 OP4423-04 OP4423-05 OP4423-07 OP4423-08 OP4423-21 OP4423-22
Basic Unit (Single Channel) 2nd Channel Card (Dual Channel Unit) Viterbi (R 1/2) (Requires OP-40) Analog FM & PCM/FM Viterbi (R 3/4) (Requires OP-40) SOQPSK PM/PSK GMSK IEEE-488 Remote Control Ethernet Remote Control
Recognizing that no standard product can meet all the needs of all users, GDP stands ready to provide units tailored to unique applications.
OP4423-30 OP4423-40 OP4423-41 OP4423-45 OP4423-61 OP4423-65 OP4423-7X OP4423-8X OP4423-89 OP4423-93 OP4423-VI
* OPTIONAL 140811
AM/AGC Antenna Tracking Bit Syncs w/Frame Syncs (Pattern detectors) Extended Bit Rate (20 Mbps BPSK, 40 Mbps QPSK Ethernet Data Output (Byte Aligned Data) IRIG B Time Input Ethernet Chapter 10 Output Filters (Selectable BW Filters) Special Frequency Bands Chassis Slides Reed Solomon Remote Control VI Software
The statements in this data sheet are not intended to create any warranty, expressed or implied. Equipment specifications are subject to change without notice.
300 Welsh Road · Building 3 · Horsham, PA 19044-2294 Phone: 215-657-5270 Fax: 215-657-5273
URL: http://www.gdpspace.com E-mail:
[email protected]
