Description
Scientific Atlanta 7550A Up-Converter 7550B Video Exciter 5.8-6.4 GHz Satcom
C-Band satellite up-converter and video exciter designed for satellite uplink transmission. Operates across 5.8 to 6.4 GHz frequency range with modular plug-in architecture for flexible configuration.
Specifications & What's Included
- Model: 7550A / 7550B; MPN: 7550CFG
- Frequency Range: 5.8–6.4 GHz (C-Band)
- Form Factor: 4U rackmount (28" × 20" × 6")
- Power: 120/240/100 VAC switchable
- Installed Modules: IF Filter-Amplifier, Modulator, Video Baseband Processor, 2× Subcarrier, 750 ATIS Subcarrier
- Synthesizer: 100 MHz (Assembly 360352)
- Front Panel: Blue LED frequency display, numeric keypad with function keys
- Rear Connectors: RF, IF, video, data, remote, auxiliary alarm, external sync, external subcarrier input
- RS-232 Port: DB9 on 750 ATIS module
Applications
This equipment type was used in satellite uplink facilities for broadcast video transmission, teleconferencing, and data distribution over satellite networks. The modular design accommodates various signal processing configurations for video and subcarrier modulation. Scientific Atlanta equipment of this era was standard in teleport and network operations centers for C-Band transmission.
Condition: For Parts or Not Working
This Scientific Atlanta 7550A Up-Converter / 7550B Video Exciter has been visually inspected and appears to be in good cosmetic condition overall. It has not been powered on or tested at our facility and is being sold as-is. The chassis is intact, all plug-in modules are present and seated, and the front panel keypad and LED display appear undamaged. The rear cooling fan and wiring harness are intact. Some dust accumulation is visible on the rear fan and chassis interior, consistent with prior rack-mount service use. Please view our photo set and contact us if you have any questions.
This Scientific Atlanta 7550A Up-Converter / 7550B Video Exciter has been visually inspected and appears to be in good cosmetic condition overall. It has not been powered on or tested at our facility and is being sold as-is. The chassis is intact, all plug-in modules are present and seated, and the front panel keypad and LED display appear undamaged. The rear cooling fan and wiring harness are intact. Some dust accumulation is visible on the rear fan and chassis interior, consistent with prior rack-mount service use. Please view our photo set and contact us if you have any questions.
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: |
Scientific-Atlanta |
Model: |
7550A |
Secondary Model: |
7550B |
MPN: |
7550CFG |
Configuration Code: |
AGBADAABAA |
SKU: |
45516 |
Type: |
Satellite Up-Converter / Video Exciter |
Frequency Range: |
5.8 to 6.4 GHz |
Band: |
C-Band |
Application: |
Satellite Uplink / Video Exciter |
Form Factor: |
Rackmount |
Rack Units: |
4U (approx.) |
Dimensions: |
28" x 20" x 6" |
Power Requirements: |
120 VAC / 240 VAC / 100 VAC switchable (QPT-515-ET-66 transformer) |
Fuse Rating: |
120 VAC: 2A S/B; 240 VAC: 1A S/B |
Plug-in Module 1: |
IF Filter-Amplifier |
Plug-in Module 2: |
Modulator |
Plug-in Module 3: |
Video Baseband Processor |
Plug-in Module 4: |
Subcarrier (x2) |
Plug-in Module 5: |
750 ATIS Subcarrier |
Synthesizer Module: |
100 MHz Synthesizer (Assembly 360352, Model 7550A) |
Front Panel Display: |
Blue numeric LED frequency display (5850.000 shown) |
Front Panel Interface: |
Numeric keypad with SF1-SF4, FREQ, XPDR, TEST, MOD keys |
Rear Connectors: |
J1 Power, J2 AUX ALM, J3 DATA, J5 VIDEO, J9 EXT SYNC |
Rear Connectors 2: |
J10 EXT S/C INPUT, J104 RF, J101 SABUS, J102 POWER |
Rear Connectors 3: |
J105 REMOTE, J106 AINFRAME, J107 IF, J6 IF, J7 CONVERTER |
IF Interface: |
BNC (IF Input/Output on rear panel) |
RS-232 Port: |
Yes — DB9 on 750 ATIS Subcarrier module |
Country/Region of Manufacture: |
United States |
Manufacturer Location: |
Atlanta, Georgia 30340 |
Condition: |
As-Is / For Parts or Not Working |
Seller Notes: |
Includes installed plug-in modules: IF Filter-Amp, Modulator, Video Baseband Processor, 2x Subcarrier, 750 ATIS Subcarrier |
Condition Notes: |
Scientific Atlanta 7550A Up-Converter / 7550B Video Exciter. Visually inspected, appears in good cosmetic condition. Not powered or tested — sold as-is. All plug-in modules present. Please contact us with questions. |