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Wideband RF Fiber Transmitter

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The 7706LT is a fiber optic transmitter for RF signals in the extended L-Band or wider frequency range. It accepts a single RF input on coaxial cable and provides a single output for optical transmission. An RF monitor output provides a convenient means of obtaining peak satellite signal strength, or additional signal distribution.

Gain may be adjusted manually or managed automatically via AGC. 13/17V DC adjustable LNB power with 22kHz tone is also provided.


  • Extended frequency response for extended L-Band and other signals
  • Protocol independent design - transports all modulation formats
  • LNB power with selectable 13/17V DC
  • LNB current limit & short circuit protection
  • 22kHz tone on/off for LNB local oscillator control
  • RF monitor output for signal peaking and signal distribution
  • Manual gain and AGC modes for tuning optimal CNR performance
  • Fiber link provides electrical isolation between antenna and facility, mitigating ground loop and lightning issues
  • The 7706LT 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.


RF Input

输入数量 1
端口数目 BNC per IEC 61169-8 Annex A (F-Type and SMA Optional)
Input Impedance 75Ω (50Ω Optional)
Frequency Range 850MHz-3000MHz
850MHz - 2.3GHz > 14dB
2.3GHz - 3GHz > 12dB
Input Power Range -10dBm to -60dBm
AGC Gain Range -10 to +30dB, adjustable
IMD < -55dBc at -15dBm input and 0dB gain
Input IP3 +10dBm
LNB Power
电压 13V DC, 18V DC, off (selectable)
Current 400mA
Protection Short Circuit, current limited
LO Control 22kHz on/off (selectable)

RF Monitor Output

输出数量 1
端口数目 BNC per IEC 61169-8 Annex A (F-Type and SMA Optional)
Output Impedance 75Ω (50Ω Optional)
反射损失 > 15dB
Frequency Range 850MHz to 3000MHz
Output Level Within -2.0dB of input signal


输出数量 1
Operating Wavelength 1310nm DFB
Output Power +2dBm

RF System Performance

7706LT13+7706LRA pair
950MHz - 2150MHz ±1.5dB
850MHz - 3GHz ±2dB
36MHz BW to 2.3GHz ±0.25dB


电压 +12V DC
功率 6 watts max, excluding LNB Power


Number of slots 1


Laser safety Class 1 laser product
Complies with 24 CFR 1040.10 and 1040.11
IEC 60825-1
EMI/RFI Complies with FCC Part 15, Class A
EU EMC directive


7706LT13 Wideband RF Fiber Transmitter, 1310nm DFB laser
7706LT13-B50 Wideband RF Fiber Transmitter, 1310nm DFB laser, 50Ω BNC Connectors
7706LT13-S50 Wideband RF Fiber Transmitter, 1310nm DFB laser, 50Ω SMA Connectors


注意 75Ω I/O Impedance ships standard
Rear plate and fiber connector must be specified at time of order - eg: [model]+SC+3RU
Connector Suffix
+AP+SC SC/APC (Angle Polished)
+AP+FC FC/APC (Angle Polished)
+F75 75Ω F-Type
Rear Plate Suffix
+1RU 1RU rear plate for use with 7701FR Multiframe
+SA Standalone Enclosure Rear Plate
+3RU 3RU rear plate for use with 350FR, 7700FR-C or 7800FR Multiframes


350FR Portable Multiframe which holds 7 single slot modules
7700FR-C 3RU Multiframe which holds 15 single slot modules
7800FR 3RU Multiframe which holds 15 single slot modules
7701FR 1RU Multiframe which holds 3 single slot modules
S7701FR 7700 Series Standalone Enclosure