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Specifications
SM-4230 General Purpose Waveform Modulator




 

Data Input

TTL Data/Clock: 50 bps to 20 Mbps
Differential Data/Clock: 50 bps to 20 Mbps
Dibit Command Processor Input: 2400 or 4800 bps
Serial Command Processor Input: 1000 or 2000 sps


Coding Formats

PCM:

 

NON-RETURN-TO ZERO (NRZ)
- Mark (NRZ-M)
- Space (NRZ-S)
- Level (NRZ-L)
BI-PHASE (BIØ)
- Mark (BIØ-M)
- Space (BIØ-S)
- Level (BIØ-L)

Convolutional:

 

Bypass Control to Disable
Rate 1/2
Constraint Length 7
Industry Standard Polynomials
G1/G2, G1/-G2, G2/G1, -G2/G1 Symbol Ordering


Command Processor

Inputs:

 

Data Formatted as Serial or Dibit
Clock Configurable as Input or Output

Functions:

 

Dibit to Ternary Frame Build
Serial to Ternary Conversion
Auto Rate Detect/Clock Generation
AM/FSK Waveform Creation

AM Control:

 

AM Peak Delay: 0 to 100% of Symbol Period
AM Modulation Index: 0 to 100% of Configured Level

PN Ranging Code:

 

Can be summed to Final AM/FSK Waveform
Data Source: Differential or TTL Input Port
Modulation Index: 0 to 100% of Configured Level


IF Output

Frequency:
          Baseband (DC) to 20 MHz
          70 or 140 MHz (optional)
Resolution: 0.25 Hz
Output Level: +9 to -10 dBm


Supported Waveforms

Phase Shift Keyed (PSK)
Frequency Shift Keyed (FSK)
AM/FSK - Command Link Only


 

PSK Waveform Specifications

Modes: BPSK, QPSK, AQPSK, UQPSK, or OQPSK
Shaping: Phase Transition over 0 to 100% of Baud Period
Modulation Rates: 50 sps to 20 Msps


FSK Waveform Specifications

Mode: Binary FSK
Modulation Rates: 100 sps to 500 Ksps
Deviation: 200 Hz to 250 KHz


Bit-Synchronizer

Operation: Auto-baud detect of incoming data
Function:

 

Adapts Modulated Waveform for Shaping over Percentage
Period of Resulting Baud Period.


Remote Status/Control Specifications

Serial RS-232
Commands:

 

Control Over All Configurable Parameters

Status:

 

Self-Test Status
Auto-baud Detect


Other Specifications

Chasses

 

19 Inch Rack Mountable
1.75 Inch Height (1U)
15 Inch Depth (Excluding Connectors)

Connectors

 

2 BNC For Programmable Monitor Ports (Front Panel)
1 BNC for In-phase Waveform Output
1 BNC for Quadrature Waveform Output
1 15 PIN D for Differential Data/Clock Inputs/Outputs
2 BNC for TTL Data/Clock Input
2 BNC for TTL Data/Clock Output
1 9 PIN D for Remote Status/Control
Standard 3 Prong Male Primary Power Input

Prminary Power:

 

120 VAC (+/- 10%)
50-60 Hz

Temperature

 

-25° TO 60° C Operational
-45° TO +65° C Storage

Humidity: To 95% non-condensing
Altitude:

 

15,000 feet AMSL (Operational)
50,000 feet AMSL (Storage)


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* All specifications subject to change without notice or obligation to retrofit.
Consult factory for custom options and/or alternate specifications



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