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Dual L-Band/Wideband RF Fiber Transmitter with VistaLINK® and SmartMON™

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The 7807LT-2 is a dual fiber optic transmitter for RF signals in the extended L-Band or wider frequency range. It accepts two RF inputs from coaxial cable and provides two outputs for optical transmission. An RF monitor output is provided for each input, which offers a convenient means of obtaining peak satellite signal strength, or additional signal distribution. With two optical transmitters per single-slot card, the 7807LT-2 provides a high density economical solution.

Individual monitoring and control is provided for each signal path. Gain may be adjusted manually or managed automatically via AGC. With SmartMON™, incoming RF signal strength, LNB current and other data are relayed over the fiber outputs for monitoring at the receiver side through SNMP/VistaLINK® (requires SmartMON™ capable companion fiber receiver). 13/18V DC selectable LNB power with 22kHz tone is also provided on each RF input.


  • Extended frequency response for extended L-Band, off-air DTV and other signals
  • Protocol independent design - transports all modulation formats
  • LNB power with selectable 13/18V DC, per input
  • LNB current limit and short circuit protection
  • LNB current monitoring for advance warning of LNB failure
  • 22kHz tone on/off for LNB local oscillator control, per input
  • RF monitoring output ports for signal peaking and signal distribution
  • Manual gain and AGC modes for tuning optimal CNR performance
  • Multiple versions of the 7807LT-2 are available to address single-mode/ multi-mode fiber, single/dual fiber and CWDM/DWDM applications
  • The 7807LT13/15-2-W is a dual channel card that features an on-board fiber coupler, requiring only a single fiber for the link (companion receiver is the 7807LR-2-W)
  • Dual fiber transmitters on a single-slot card provides the industry's highest density solution
  • SmartMON™ capability provides remote status monitoring via SNMP without a separate data connection
  • VistaLINK® capability is available for monitoring and control when modules are used in a 3RU 7800FR frame and a 7700FC VistaLINK® frame controller is installed in slot 1 of the frame
  • Form-C dry contact GPO alarm contacts for monitoring
  • Fiber link provides electrical isolation between antenna and facility, mitigating ground loop and lightning issues
  • Compatible with all 2406LR, 7706LR, 7708LR and 7807LR-2 series receivers
  • The 7807LT-2 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

Number of Inputs 2
Connectors BNC per IEC 61169-8 Annex A (F-Type optional)
Input Impedance 75Ω
Return Loss > 14dB to 2100MHz
> 10dB to 2100MHz to 2800MHz
Frequency Range 50 – 2800MHz
Input Power Range -10dBm to -60dBm
AGC Gain Range -10dB to +20dB
Input IP3 +10dBm

LNB Power

Voltage 13V DC, 18V DC, off (selectable)
Current 500mA
Protection Short circuit, current limited
LO Control 22kHz on/off (selectable)

RF Monitor Output

Number of Outputs 2
Connector BNC per IEC 61169-8 Annex A (F-Type optional)
Output Impedance 75Ω
Return Loss > 15dB
Frequency Range 50 – 2800MHz
Output Level within -2.0dB of input signal

Optical Output

Number of Outputs 2
Connector Female SC/UPC, FC/UPC, SC/APC, FC/APC
Operating Wavelength 1310nm DFB
(1550nm and CWDM optional)
DWDM C-Band (ITU G.694.1 compliant)
Output Power
Dual Fiber +2dBm ±1dBm
Single Fiber -2dBm ±1dBm
DWDM +11dBm

RF System Performance

7807LT-2 + 7807LR-2 pair
850 – 2250MHz ±1.5dB
50 – 2800MHz ±2dB

General Purpose Outputs

Number of Outputs 2
Type "Dry Contact" relay contacts - normally open and normally closed contact provided
Connector 3-pin terminal strip


Voltage 12V DC
Power 6 watts 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 regulations for Class A devices. Complies with EU EMC directive 89/336/EEC

Ordering Information

Notes Cards are physically compatible with the 7700FR-C frame, but LNB power will be automatically disabled.
For companion receiver see the 7807LR-2 catalog page.
Also compatible with the 2406LR, 7706LR and 7708LRA/7708LR-H receivers.
7807LT13-2 Dual L-Band RF Fiber Transmitter, 1310nm DFB laser, SmartMON™, VistaLINK®
7807LT13/15-2-W Dual L-Band/Wideband RF Fiber Transmitter, 1310nm & 1550 DFB laser, onboard coupler with single fiber output, SmartMON™, VistaLINK®; companion receiver is the 7807LR-2-W
CWDM & DWDM (Ordering Information)
7807LTxx/yy-2 Dual L-Band/Wideband RF Fiber Transmitter, CWDM, DFB Laser, SmartMON™, VistaLINK®
7807LTDxxx/yyy-2 Dual RF Fiber Transmitter, wideband, with SmartMON™ and VistaLINK®, high power ±10dBm DWDM DFB Laser, 75Ω BNC

Ordering Options

Notes Rear plate and fiber connector must be specified at time of order - eg: [model]+SC+3RU
75Ω BNC Connectors are standard.
Consult factory for 500Ω BNC and SMA connector options.
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 7800FR Multiframes


7800FR 3RU Multiframe which holds 15 single slot modules
7701FR 1RU Multiframe which holds 3 single slot modules
S7701FR 7700 Series Standalone Enclosure