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Hughes

Hughes Aircraft 3878521-100 FM Data Detector AUSSAT Satellite Ground System Rev

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SKU:
41246
MPN:
3878521-100
Condition:
Used
Availability:
Usually ships within 1-2 business days.
Weight:
18.00 LBS
Shipping:
Calculated at Checkout
  • Hughes Aircraft 3878521-100 FM Data Detector rackmount unit – front panel three-quarter view showing FM DATA DETECTOR label, PS1/MIP/EX LEDs, Nutation Offset knob, and Hughes logo
  • Hughes 3878521-100 FM Data Detector – rear panel view showing Composite TM In (J1), Detected TM Data Out (J2), PSI Out (J3), RS-Out, AC power inlet, On/Off switch, and GND terminal
  • Hughes FM Data Detector front panel close-up – Nutation section with Offset knob and Gain selector buttons (100 Hz/V, 10 kHz/V), Analog Data switch (Nutation/Earth), and Hughes Aircraft Company logo plate
  • Hughes 3878521-100 FM Data Detector front panel left section – PS1, MIP, and EX status indicator LEDs and Nutation Offset adjustment knob
  • Hughes 3878521-100 rear panel label close-up – Hughes Satellite Ground Equipment Division label showing SYS: AUSSAT, UNIT: FM Data Detector Assy, PN: 3878521-100, Rev C, SER: 002; AUSSAT PTY LTD label with barcode 00001331
  • Hughes FM Data Detector rear panel AC Power section close-up – IEC AC inlet, fuse holder, On/Off toggle switch, and GND binding post
  • Hughes 3878521-100 FM Data Detector with bottom plate removed – interior view showing populated PCBs, wiring harness, internal power supply, and front panel assembly
  • Hughes FM Data Detector interior close-up – Acopian AC to DC Power Module, high-voltage warning label, multiple toroidal transformers, and wiring harness
  • Hughes FM Data Detector interior – Vectron Laboratories crystal oscillator module (Model C023L, 10 kHz, S/N 8304) mounted on main PCB
  • Hughes FM Data Detector interior PCB detail – three transformer modules marked 22558-2296 (variants -1, -2, -4) arranged across the main circuit board
  • Hughes 3878521-100 Rackmount FM Data Detector-AUSSAT System-Missing Bottom Plate
  • Hughes 3878521-100 Rackmount FM Data Detector-AUSSAT System-Missing Bottom Plate
$300.00
Was: $600.00
Current Stock: 1

Sold Out

Description

Hughes Aircraft 3878521-100 FM Data Detector AUSSAT Satellite Ground System Rev C

FM data detector unit designed for AUSSAT satellite ground station systems. Processes composite telemetry input and outputs detected telemetry data via D-Sub connector.

Specifications & What's Included

  • Model: 3878521-100, Revision C
  • Rack-mount form factor
  • Front panel controls: Nutation Offset knob, Gain selector (100 Hz/V, 10 kHz/V), Analog Data switch
  • Status indicators: PS1, MIP, EX LEDs
  • Connectors: BNC (Composite TM In, PSI Out), DB-25 (Detected TM Data Out), RS-Out rear interface
  • Internal Acopian AC-DC power module; Vectron 10 kHz crystal oscillator
  • Made in USA

Applications

FM data detectors were integral components in satellite ground station receiver chains, particularly for Australian AUSSAT systems. This unit handled demodulation and detection of frequency-modulated telemetry signals from space-based platforms. Typical deployment involved integration into larger telemetry processing racks alongside multiplexers, decommutators, and recording equipment.

Condition: Used
This Hughes Aircraft 3878521-100 FM Data Detector was pulled from a working environment where it was in active use. It has been inspected and is in good used condition overall. The chassis, front panel controls, and rear connectors all appear intact and undamaged. The bottom plate is missing, as noted in the listing title and reflected in the price. Interior photos show the PCBs, wiring, Acopian AC-to-DC power module, and Vectron crystal oscillator are all present and visually intact. Some light surface wear and aging are consistent with prior operational service. Please view our photo set and contact us if you have any questions.
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Warranty Information

We stand behind every item we sell with a 30-day money-back guarantee. If your item arrives not as described, you may return it within 30 days for a full refund. Please inspect your purchase upon arrival and contact us with any questions.
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Additional Information

Brand:
Hughes Aircraft
Model:
3878521-100
MPN:
3878521-100
Type:
FM Data Detector
SKU:
41246
Revision:
Rev C
System Compatibility:
AUSSAT Satellite Ground System
Division:
Hughes Satellite Ground Equipment Division
Form Factor:
Rack Mount
Condition:
Used – Pulled from Working Environment
Seller Notes:
Missing bottom plate; sold as-is with noted cosmetic deficiency
Front Panel Indicators:
PS1, MIP, EX status LEDs
Front Panel Controls:
Nutation Offset knob, Gain selector (100 Hz/V, 10 kHz/V), Analog Data switch (Nutation/Earth)
Connector J1:
Composite TM In – BNC
Connector J2:
Detected TM Data Out – D-Sub (DB-25 style, green)
Connector J3:
PSI Out – BNC
Rear Interface:
RS-Out connector, IEC AC power inlet, On/Off toggle, GND terminal
Internal Power Module:
Acopian AC to DC Power Module
Crystal Oscillator:
Vectron Laboratories C023L, 10 kHz
Country/Region of Manufacture:
United States
Condition Notes:
Hughes Aircraft 3878521-100 FM Data Detector pulled from a working environment, inspected, in good used condition. Bottom plate is missing — noted in title and reflected in price. PCBs and internal components present and visually intact. Light wear.
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