Modulators
Modulators are electronic devices used to control or adjust signals in various systems. These devices are commonly used in telecommunications, audio equipment, and electronic instruments to modify the characteristics of signals. Modulators can be analog or digital, and they are designed to alter parameters such as frequency, amplitude, or phase of the input signal. By using modulators, engineers can manipulate signals to achieve specific objectives, such as increasing data transmission rates or improving signal quality. Overall, modulators play a crucial role in the functionality and performance of many electronic devices and systems.
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IntraAction DFE-40/102 AOM Modulator Driver RF Power Supply 115/230VAC
IntraAction
$250.00Was: $500.00IntraAction DFE-40/102 AOM Modulator Driver RF Power Supply 115/230VACRF power supply and driver for acousto-optic modulators (AOMs). Generates 40 MHz nominal drive frequency for IntraAction AOM and AOD devices with dual-channel output via BNC connectors...50442- SKU:
- 50442
- Availability:
- Usually ships within 1-2 business days.
- Weight:
- 26.00 LBS
- Brand:
- IntraAction Corp
- Model:
- DFE-40/102
- MPN:
- DFE-40/102
- Type:
- AOM Modulator Driver / RF Power Supply
- SKU:
- 50442
- Condition:
- Used – Powers On, Fan Confirmed Spinning
- Seller Notes:
- Unit powers on and fan spins; from aerospace R&D lab
- Country/Region of Manufacture:
- United States
- Form Factor:
- Benchtop / Rackmount
- Power Requirements:
- 115/230VAC
- Voltage:
- 115/230VAC
- Application:
- Acousto-Optic Modulator (AOM) / AOD Drive
- Number of Channels:
- 2
- Frequency:
- 40 MHz (nominal AOM drive frequency)
- Connector Type:
- BNC (RF output/input), IEC AC inlet
- Compatible With:
- IntraAction AOM / AOD acousto-optic devices
- Condition Notes:
- IntraAction DFE-40/102 AOM Modulator Driver. Powers on, fan spins; further functional testing not performed. Good cosmetic condition. Ex-aerospace R&D lab. 115V selected. Please contact us with questions.
$250.00Was: $500.00 -
Lorain MZHSA15CAB Modular DC-DC Converter -48V 15A w/ 4x MZHSA3B Modules
Lorain
$95.00Was: $200.00Lorain MZHSA15CAB Modular DC-DC Converter -48V 15A w/ 4x MZHSA3B ModulesModular DC-DC converter power supply manufactured by Reliance Electric Co. Converts +/-24VDC input to -48VDC output. Rack-mount form factor with four installed converter modules...50182- SKU:
- 50182
- Availability:
- Usually ships within 1–2 business days.
- Weight:
- 25.00 LBS
- Brand:
- Lorain
- Model:
- MZHSA15CAB
- MPN:
- MZHSA15CAB
- Secondary Model:
- MZHSA3B
- Spec Number:
- 5882-406
- Module Spec Number:
- 4868-846-00
- SKU:
- 50182
- Type:
- Modular DC-DC Converter Power Supply
- Condition:
- Used – Pulled from Working Environment
- DC Input Voltage:
- +/-24VDC
- DC Input Current (Max):
- 45A Max
- DC Output Voltage:
- -48VDC
- DC Output Current (Max):
- 15A Max
- Module Input Voltage:
- +24VDC, 9A
- Module Output Voltage:
- -48VDC, 3A
- Number of Modules:
- 4
- Module Model:
- MZHSA3B
- Manufacturer:
- Reliance Electric Co., Lorain, Ohio
- Country/Region of Manufacture:
- United States
- Form Factor:
- Rack Mount
- Seller Notes:
- Includes chassis (MZHSA15CAB) with 4x MZHSA3B DC-DC converter modules installed.
- Condition Notes:
- This Lorain MZHSA15CAB Modular DC-DC Converter was pulled from a working environment and inspected. Includes 4x MZHSA3B modules. Shows light wear consistent with normal use. Good overall condition.
$95.00Was: $200.00 -
General Instrument Magnitude MMI+ 410802-03 Multiplexer Modulator Interface 1U
General Instrument
$125.00Was: $250.00General Instrument Magnitude MMI+ 410802-03 Multiplexer Modulator Interface 1UThe General Instrument Magnitude MMI+ (part number 410802-03) is a 1U rackmount Multiplexer/Modulator Interface designed for use in professional cable television and digital...39795- SKU:
- 39795
- Availability:
- Usually ships within 1-2 business days.
- Weight:
- 9.50 LBS
- Brand:
- General Instrument
- Model:
- MMI+
- MPN:
- 410802-03
- Secondary Model:
- Magnitude MMI Plus
- Type:
- Multiplexer / Modulator Interface
- SKU:
- 39795
- Condition:
- Used – Inspected
- Form Factor:
- 1U Rackmount
- Power Requirements:
- AC 100-240V, 60-50 Hz, 0.5-0.3 A
- Fuse Rating:
- 1A, 250VAC
- Interface Type:
- HSSI I/O, DVB Modem, EXT Sync, Alarm Cable
- Number of Ports:
- 8 rear ports: A/B MUX IN, Modem OUT 1/3/4/5, DVB Modem OUT/IN
- Connector Types:
- DB-15, DB-25, BNC (EXT sync), IEC AC inlet
- Front Panel Indicators:
- MUX, DVB, SS, CLK, PLL, FRM, OLL LEDs
- DIP Switch Control:
- Internal mode, frequency, packet length, loopback selectors
- Compatible With:
- General Instrument Magnitude headend systems
- Manufacturer:
- Magnitude Compression Systems, Inc.
- Country/Region of Manufacture:
- United States
- Seller Notes:
- Unit only; no accessories included. Inspected and in good condition.
- Condition Notes:
- General Instrument Magnitude MMI+ 410802-03 Multiplexer/Modulator Interface. Inspected and in good used condition. Chassis is clean with light surface wear. All connectors appear intact. No accessories included.
$125.00Was: $250.00 -
Scientific Atlanta D9380 PowerVu Digital Video Modulator QPSK 100-240V
Scientific Atlanta
$110.00Was: $225.00Scientific Atlanta D9380 PowerVu Digital Video Modulator QPSK 100-240VThe Scientific Atlanta D9380 is a rackmount PowerVu Digital Video Modulator designed for professional digital video distribution over satellite or cable networks. It integrates a QPSK...39578- SKU:
- 39578
- Availability:
- Usually ships within 1–2 business days.
- Weight:
- 21.00 LBS
- Brand:
- Scientific Atlanta
- Model:
- D9380
- MPN:
- 523136
- Secondary Model:
- PowerVu
- Type:
- Digital Video Modulator
- SKU:
- 39578
- Modulation Type:
- QPSK
- Assembly – QPSK Modulator:
- ASSY 521522
- Assembly – Encoder:
- ASSY 523446
- Assembly – Interface:
- ASSY 521533
- Assembly – Front Panel Logic:
- ASSY 521599
- Power Input:
- 100–240V AC, 47–63 Hz, 1.5A Max
- Fuse:
- Type T (Slow Blow), 250VAC, 2.0A
- IF Monitor Output:
- -20 dBm Typical (BNC)
- Rear Interfaces:
- BNC (I/Q Input/Output), DB-15 SABUS, Ethernet, SWIF
- Front Panel:
- LCD display, numeric keypad, 5 soft-key buttons
- Front Panel Indicators:
- ALARM LED, MUTE LED, IF Monitor BNC
- Form Factor:
- Rackmount, 3U
- Condition:
- Used – Powers On; Unable to Test Further
- Seller Notes:
- Includes QPSK modulator, encoder, and interface assemblies as described
- Country/Region of Manufacture:
- United States
- Manufacturer Location:
- Norcross, GA 30093, US (Network Systems Group)
- Condition Notes:
- Scientific Atlanta D9380 PowerVu Digital Video Modulator powers on and LCD/indicators light up. Unable to test further. Shows normal rack wear. Sold as-is beyond power-on confirmation. Please contact us with questions.
$110.00Was: $225.00 -
3DBM Inc 70FMO-DL-1-3-A-1 FM Modulator Module Rackmount 70 MHz RF 105-125V
3dbm, INC
$150.00Was: $300.003DBM Inc 70FMO-DL-1-3-A-1 FM Modulator Module Rackmount 70 MHz RF 105-125VFM modulator module designed for rackmount integration in broadcast and telecom systems. Operates at 70 MHz RF frequency and accepts modulation input via BNC connectors...39373- SKU:
- 39373
- Availability:
- Usually ships within 1-2 business days.
- Weight:
- 13.00 LBS
- Brand:
- 3DBM Inc
- Model:
- 70FMO-DL-1-3-A-1
- MPN:
- 70FMO-DL-1-3-A-1
- Type:
- FM Modulator Module
- SKU:
- 39373
- Form Factor:
- Rackmount Module
- Frequency:
- 70 MHz
- Power Requirements:
- 105-125 VAC, 60 Hz
- RF Output Connector:
- BNC (J5 – RF OUT)
- Modulation Input Connector:
- BNC (J6 – MOD IN)
- Monitor Output Connector:
- BNC (J9 – TONE MON)
- Status/Control Interface:
- DB9 (J7 – Status)
- Control Functions:
- Remote Calib, Alarm CTR Contact, Fault Alarm, Operate, Calibrate, OP-CAL CTR Contact, Ground
- Front Panel Indicators:
- FM Modulator ON (green LED), FAULT (red LED)
- Front Panel Controls:
- OPERATE switch, CALIB switch, meter display
- Condition:
- Used – Pulled from Working Environment
- Seller Notes:
- Module only; pulled from a working rackmount system environment.
- Country/Region of Manufacture:
- United States
- Condition Notes:
- 3DBM Inc 70FMO-DL-1-3-A-1 FM Modulator Module. Inspected, in good used condition. Pulled from a working environment where it was in active use. Enclosure shows light surface wear. Connectors and controls intact.
$150.00Was: $300.00 -
WV Communications 70-01FM-CH FM Modulation Sensitivity Adjust 70MHz RF
$125.00Was: $250.00WV Communications 70-01FM-CH FM Modulation Sensitivity Adjust 70MHz RFThis is a benchtop FM modulation sensitivity adjustment unit operating at 70 MHz. It provides manual control over FM modulation sensitivity settings via a front-panel rotary trim...39369- SKU:
- 39369
- Availability:
- Usually ships within 1-2 business days.
- Weight:
- 6.00 LBS
- Brand:
- WV Communications
- Model:
- 70-01FM-CH
- MPN:
- 70-01FM-CH
- Secondary Model:
- 70MDF-FM-BRZ
- SKU:
- 39369
- Type:
- FM Modulation Sensitivity Adjust Unit
- Frequency:
- 70 MHz
- RF Output Connector:
- BNC (J2)
- Tone Input Connector:
- BNC (J1)
- Control Interface:
- DB9 (J4)
- AC Input Connector:
- IEC C14 (J3)
- Power Requirements:
- 115 VAC, 1-Phase, 47-63Hz, 1A
- Fuse:
- 1A SB
- Front Panel Indicators:
- AC PWR ON (green LED), FAULT (red LED)
- Front Panel Controls:
- FM Modulation Sensitivity Adjust (rotary trim pot)
- Power Switch:
- Rear-panel rocker switch (AC ON / AC OFF, SW1)
- Form Factor:
- Benchtop / Rackmount enclosure
- Condition:
- Used – Inspected
- Seller Notes:
- Unit only; no accessories included.
- Country/Region of Manufacture:
- United States
- Condition Notes:
- WV Communications 70-01FM-CH FM Modulation Sensitivity Adjust. Inspected and in good used condition. Clean enclosure with minor surface wear. Front panel controls and rear BNC/DB9 connectors intact. No damage observed.
$125.00Was: $250.00 -
WV Communications 70-01FD-CH 19" Rackmount 70 MHz FM Modulator RF/IF Demodulator
WV Communications
$150.00Was: $300.00WV Communications 70-01FD-CH 19" Rackmount 70 MHz FM Modulator RF/IF DemodulatorThis rackmount chassis houses two modules: a 70 MHz FM modulator and an RF/IF demodulator. It converts between baseband audio signals and 70 MHz RF carriers for telecom and...39331- SKU:
- 39331
- Availability:
- Usually ships within 1-2 business days.
- Weight:
- 21.00 LBS
- Brand:
- WV Communications
- Model:
- 70-01FD-CH
- MPN:
- 70-01FD-CH
- Secondary Model:
- 70-01FM-CH
- Type:
- 19" Rackmount FM Modulator / RF-IF Demodulator Chassis
- SKU:
- 39331
- Condition:
- Used – Inspected
- Seller Notes:
- Includes 70MDF-FM-BRZ 70 MHz FM Modulator and RF/IF-DEM-PANAM Demodulator modules
- Form Factor:
- 19" Rackmount
- Number of Modules:
- 2
- Module 1 Part Number:
- 70MDF-FM-BRZ
- Module 1 Description:
- 70 MHz FM Modulator
- Module 2 Part Number:
- RF/IF-DEM-PANAM
- Module 2 Description:
- RF/IF Demodulator
- Center Frequency:
- 70 MHz (69.6 / 70.0 MHz selectable)
- Modulation Type:
- FM (Frequency Modulation)
- Power Requirements:
- 115 VAC, 1-Phase, 47-63 Hz
- Fuse Rating:
- 1A SB
- Front Panel Indicators:
- AC PWR ON (green LED), FAULT (red LED)
- Front Panel Controls:
- FM Modulation Sensitivity Adjust; FM Demod Output Level Adjust
- RF Input Frequency Select:
- 69.6 MHz / 70.0 MHz
- Tone Monitor Connector:
- BNC (front panel, demodulator module)
- Rear Connectors – Demodulator:
- J1 RF Input (BNC), J2 Tone Output (BNC), J3 AC Input (IEC), J4 (DB9)
- Rear Connectors – Modulator:
- J1 Tone Input (BNC), J2 RF Output (BNC), J3 AC Input (IEC), J4 (DB9)
- AC Power Switch:
- SW1 rocker switch (AC ON / AC OFF) per module
- Country/Region of Manufacture:
- United States
- Condition Notes:
- WV Communications 70-01FD-CH rackmount chassis inspected and in good condition. Both modules present: 70 MHz FM Modulator (70MDF-FM-BRZ) and RF/IF Demodulator (RF/IF-DEM-PANAM). Light rack wear. Contact us with questions.
$150.00Was: $300.00 -
Decom Systems DSI 7376 PSK/PCM Bit Synchronizer PSK Demodulator Rackmount
Decom Systems
$75.00Was: $150.00Decom Systems DSI 7376 PSK/PCM Bit Synchronizer PSK Demodulator Rackmount2U rackmount bit synchronizer and PSK demodulator for telemetry data acquisition. Processes PSK and PCM signals in aerospace and defense applications, supporting multiple PCM codes...39320- SKU:
- 39320
- Availability:
- Usually ships within 1-2 business days.
- Weight:
- 18.00 LBS
- Brand:
- Decom Systems Inc.
- Model:
- 7376
- MPN:
- 7376-41000-012
- Secondary Model:
- 010226-1F EVO-0380 EVO-0491
- Type:
- PSK/PCM Bit Synchronizer & PSK Demodulator
- SKU:
- 39320
- Form Factor:
- Rackmount (2U)
- Application:
- Telemetry Data Acquisition, Aerospace/Defense
- Signal Type:
- PSK, PCM
- PCM Codes Supported:
- NRZ-L, NRZ-M, NRZ-S, Bi-Phase-L, Bi-Phase-M, PN
- Carrier Frequency:
- 32 kHz
- Bit Rate Range:
- 1 kbps – 4.8 kbps (BR1–BR6 selectable)
- Bandwidth Settings:
- BW1: 750 Hz, BW2: 1.5 kHz, BW3: 3 kHz, BW4: 6 kHz
- Loop Setting:
- 1% / 0.1% selectable
- Input Bandwidth Control:
- Narrow / Wide switchable
- Input Source:
- 1 / 2 selectable
- Front Panel Outputs (Test):
- Bit Sync / Data In, Data Out, Clock Out (BNC)
- Rear Panel Connectors:
- J1–J13 BNC: Demod In 1/2, Bit Sync Ext In, NRZL Out, Clock Out, Demod Status Out, Bit Sync Status Out, Bib Tape Out, PN Tape Out
- Power Input Select:
- S1 switch: 115V / 230V / 0.5A (rear panel)
- Grounds:
- Signal Ground (J12), Chassis Ground (J13) on rear
- Country/Region of Manufacture:
- United States
- Seller Notes:
- Unit only; no manual or accessories included.
- Condition:
- Used – Inspected, appears in good condition
- Condition Notes:
- Decom Systems DSI 7376 PSK/PCM Bit Synchronizer has been inspected and appears in good used condition. Front panel controls and BNC connectors intact. Normal cosmetic wear. PanamSat/PAS Capital asset tags present. Please contact us with questions.
$75.00Was: $150.00