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The 2408LT is an outdoor fiber optic transmitter for RF signals in the satellite L-Band or wider frequency range. It accepts a single RF input on coaxial cable and provides a single output for optical transmission. Packaged in a compact, standalone enclosure, the 2408LT is ideal for mounting on or near the satellite dish antenna structure. The -WP version features dust and water protection allowing outdoor mounting without a secondary enclosure. A full power 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. With SmartMON™, incoming RF signal strength, LNB current, status of connected 2400PSU-8 power supply and other data are relayed over the fiber output for monitoring through SNMP/VistaLINK® (requires SmartMON™ capable companion fiber receiver). The 2408LT also provides a DC pass through mode for LNB power and comprehensive indicators that provide status information on the input DC power and RF drive level as well as LNB power status.
For GPS applications, 2408LTA13-5V-B50 can be used to power-up GPS antenna with 5V supply and transport GPS signals over fiber. For applications that require 10MHz transport for timing, the 2408T13 – 10MHz-B50 offers an ideal solution when paired with an Evertz 10MHz fiber receiver. For injection of 10MHz into the LNB or BUC, Evertz offers the 2406BIAST-2 dual-channel bias-tee.
Illustrated comparison of 2408LT Series transmitters, L–Band (2408LTxx) vs. 10MHz RF (2408Txx-10MHz) over fiber models.
Features
- Minimizes coaxial cable length for improved CNR
- Provides electical isolation, mitigating ground loop and lightning issues
- CWDM multiplexing options
- IP65 weatherproof option
- Wide frequency range for extended L-Band, IF, FM, UHF/VHF, over-the-air DTV and more
- Protocol-independent design transports all modulation formats
- 13/18V DC LNB power +22kHz tone
- LNB current limiting, short circuit protection and current monitoring
- GPS & 10MHz transport options
Specifications
RF Input | |
|---|---|
| Number of Inputs | 1 |
| Connector | F-Type (50Ω BNC optional) |
| Conductor Range | 23-18 AWG (0.26-0.82 mm2) |
| Input Impedance | 75Ω (50Ω optional) |
| Frequency Range | 88 – 3000MHz |
| Return Loss | |
| 88 – 500MHz | > 11dB |
| 500MHz – 3GHz | > 15dB |
| Input Power Range | -10dBm to -60dBm |
| Manual Gain Range | +2 to +30dB in 2dB steps |
| AGC Hold Range | -8 to -38dBm ±2dBm |
| Input IP3 | +10dBm |
| IMD | < -55dBc at -15dB input and min.gain |
| 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 | 1 |
| Connector | F-Type (50Ω BNC optional) |
| Conductor Range | 23-18 AWG (0.26-0.82 mm2) |
| Output Impedance | 75Ω (50Ω optional) |
| Return Loss | > 15dB |
| Frequency Range | |
| Output Level | Within -2dB of input signal |
Optical Output | |
|---|---|
| Number of Outputs | 1 |
| Connector | Female FC/APC |
| Operating Wavelength | |
| Standard | 1310nm DFB |
| CWDM | 1270-1610nm |
| Output Power | |
| Standard 1310nm | +2dBm |
| CWDM | +2dBm |
RF System Performance 2408LT+7708LRA pair | |
|---|---|
| Flatness | |
| 950 – 2150MHz | ±1.5dB |
| 88MHz – 3GHz | ±2.0dB ±0.25dB on 36MHz BW to 2.3GHz |
| Gain Variation over Temperature | ±2dB (from -20°C to +70°C) |
10MHz Performance2408T13 – 10MHz + 7708R – 10MHz pair | |
|---|---|
| Manual Gain Range | -5 to +10dB |
| Input Power Range | +10 to -40dBm |
| OIP3 | +29dB |
| Harmonic Rejection | +60dB |
DC Input | |
|---|---|
| Voltage | +18V DC nominal, +11 to +20V DC range (> LNB min input voltage required when powering an LNB) |
| Power | 2 watts max excluding LNB Power |
| Connector | F-Type |
| Conductor Range | 23-18 AWG (0.26-0.82 mm2) |
Physical | |
|---|---|
| Dimensions | with flanges 5.4"L x 2.4"W x 1.2"H (138mm L x 61mm W x 31mm H) |
Compliance | |
|---|---|
| Laser Safety | Class 1 laser product, complies with 24 CFR 1040.10 and 1040.11 IEC 60825-1 |
| Safety | CSA listed to CAN/CSA 60065-03 UL Std No. 60065-2006 IEC 60065:2001 + Amd 1:2005, IEC 62368-1:2014 EN 62368-1:2014 + A11:2007, CAN/CSA-C22.2 No. 62368-1:14, UL 62368-1 2nd Ed. |
| EMI/RFI | Complies with FCC Part 15, Subpart B EN 55022:1998 ICES-003 |
Environmental | |
|---|---|
| Temperature | -30 to 75°C |
| Dust/Water Protection | IP65 (-WP version only) |
Ordering Information
| 2408LT13 | L-Band Standalone Fiber Transmitter with VistaLINK and SmartMON, FC/APC fiber connectors |
|---|---|
| 2408T13 | – 10MHz-B50 Standalone 10MHz RF over Fiber Transmitter, 1310nm DFB laser, 50Ω BNC connectors |
| 2408LTA13-5V-B50 | Standalone L-Band fiber transmitter, 1310nm DFB laser, 5V DC powering for GPS antenna. 50Ω BNC Connectors |
| 2408LTxx | 2408LTxx L-Band Standalone Fiber Transmitter with SmartMON, CWDM DFB laser, FC/APC fiber connectors (Wavelength 27 to 61) |
| 2408Txx-10MHz-B50 | Standalone 10MHz RF over Fiber Transmitter, CWDM DFB laser, FC/APC, 50Ω BNC connectors |
Ordering Options | |
|---|---|
| +PS | 18V DC external power supply, 100 – 240V AC auto-ranging input, indoor mounting with F-Type connector |
| -WP | Weatherproof |
| Connector And Impedance Options | |
|---|---|
| Notes | • Standard RF connectors are 75Ω F-Type |
| -B50 | 50Ω BNC connectors |
|---|---|
| -S50 | 50Ω SMA connectors |