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7705LR
L-Band Satellite Fiber Receiver
The 7705LR is a fiber optic receiver for L-Band satellite signals. The 7705LR accepts a fiber optic input from the 7705LTA and provides two L-Band RF output signals via BNCs.
The 7705LR occupies one card slot and can be housed in the 1RU 7801FR frame which holds up to four single or two dual slot modules, the 3RU 7800FR frame which has a 15 slot capacity, the portable 3RU 350FR frame which has a 7 slot capacity, or a standalone enclosure which holds a single module.
Features
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Block Diagram 
Specifications
| RF Output | |
|---|---|
| Number of Outputs | 2 |
| Connector | BNC per IEC 61169-8 Annex A |
| I/O Impedance | 75Ω or 50Ω (+50 option) |
| Return Loss | > 10dB |
| Frequency Range | 950MHz - 2250MHz |
| Flatness | ±1.5dB, 950MHz to 2250MHz ±0.25dB @ any 36MHz BW |
| Signal Level | |
| AGC Mode | -20dBm constant (within AGC range) |
| Manual Mode | -20dBm to -65dBm (depends on RF level and optical loss) |
| Intermodulation Products | -55dBc (AGC mode on Tx & Rx, -20dBm RF input to Tx, 1m fiber) |
| Optical Input | |
|---|---|
| Number of Inputs | 1 |
| Connector | Female SC/PC, ST/PC, FC/PC, SC/APC, FC/APC |
| Operating Wavelength | 1270nm - 1610nm |
| Input Power | +3dBm maximum |
| Optical Sensitivity | -14dBm @ 35dB S/N |
| Optical Attenuation | 10dB optical (AGC hold range) |
| Electrical | |
|---|---|
| Voltage | +12V DC |
| Power | 4 Watts |
| EMI/RFI | Complies with FCC Part 15, Class A, EU EMC Directive |
| Physical | |
|---|---|
| Number of Slots | 1 |
Ordering Information
| 7705LR | L-Band Satellite Fiber Receiver |
|---|
| Ordering Options | |
|---|---|
| Notes | • 75Ω I/O Impedance ships standard |
| • Rear plate and fiber connector must be specified at time of order - eg: [model]+SC+3RU | |
| +50 | 50Ω I/O Impedance |
|---|
| Connector Suffix | |
|---|---|
| +SC | SC/PC |
| +ST | ST/PC |
| +FC | FC/PC |
| +AP+SC | SC/APC (Angle Polished) |
| +AP+FC | FC/APC (Angle Polished) |
| +F75 | 75Ω F-Type |
| Rear Plate Suffix | |
|---|---|
| +3RU | 3RU rear plate for use with 7800FR, 7801FR, 7700FR-C or 350FR Multiframes |
| +1RU | 1RU rear plate for use with 7701FR Multiframe |
| +SA | Standalone Enclosure Rear Plate |
| Enclosures | |
|---|---|
| 350FR | Portable Multiframe which holds 7 modules |
| 7700FR-C | 3RU Multiframe which holds 15 modules |
| 7800FR | 3RU Multiframe which holds 15 modules |
| 7701FR | 1RU Multiframe which holds 3 modules |
| S7701FR | 7700 Series Standalone Enclosure |
| Patch Cable | |
|---|---|
| CB-FP1M-SCPC | Single mode fiber cable, 1m, SC/PC male termination |
| CB-FP1M-STPC | Single mode fiber cable, 1m, ST/PC male termination |
| CB-FP5M-SCPC | Single mode fiber cable, 5m, SC/PC male termination |
| CB-FP5M-STPC | Single mode fiber cable, 5m, ST/PC male termination |
| CB-FP10M-SCPC | Single mode fiber cable, 10m, SC/PC male termination |
| CB-FP10M-STPC | Single mode fiber cable, 10m, ST/PC male termination |