L-Band HTS & Reference

The ViaLiteHD L-Band HTS and Reference link is designed for applications where remote equipment shares a common frequency reference – typically 10 MHz – however the link will support reference signals in the range 10 KHz-50 MHz.

These links are available in rack chassis card format only.

  • Benefits from all of the same features as the L-Band HTS and Satcom Timing and Reference links
  • Suitable for all modulation formats
  • Ultra-wide dynamic range
  • Negligible intermodulation
  • SNMP and web interface for remote monitoring and control
  • Multiple carrier transmission
  • 5-year warranty as standard


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L-Band HTS & Reference

Further features and benefits:

  • Reference and traffic signals are transported on different wavelengths to minimize intermodulation
  • Reference can be supplied on a single RF connection with the carrier signal or from separate input sources
  • A multiplexed signal can be connected to the LNB or demultiplexed and supplied to two separate RF connections
  • Both Transmit and Receive path links are available.

Other links you may be interested in include the L-Band (700-2450 MHz) link and ViaLite Long Distance DWDM link covering distances between 50-300 km.

RF Performance Characteristics

 L-Band HTSReference L-Band HTSReference
Impedance50 ohms, duplexed50 ohms, duplexed75 ohms, duplexed75 ohms, duplexed
Frequency range700 - 2450 MHz5-20 MHz700 - 2450 MHz5-20 MHz
Flatness± 1.5 dB (max) a h
± 0.6 dB (typical) a h
± 0.2 dB in any 36 MHz a t
± 0.5 dB (typical) a h ± 1.5 dB (max) a h
± 0.8 dB (typical) a h
± 0.2 dB in any 36 MHz a t
± 0.75 dB (typical) a h
VSWR (50 Ohm)1:1.5 t  1:1.5 t  1:1.5 t  1:1.5 t  
IMD-62 dBc t  c --63 dBc t  c -
CNR56 dB t  b -55 dB t  b -
Test input / output signal -20 dBm 0 dBm-20 dBm 0 dBm
Maximum input power+15 dBm (without damage)+15 dBm (without damage)+15 dBm (without damage)+15 dBm (without damage)
Gain stability0.25 dB over 24 hours0.25 dB over 24 hours0.25 dB over 24 hours0.25 dB over 24 hours
RF link gain (nominal)+9 dB a 0 dB a +3 dB a 0 dB a
Input IP3 (at default gain)+11 dBm t  c -+12 dBm t  c -
P1dB (at default gain)-1 t   dBm +8 dBm 0 dBm +3 dBm
Noise figure(at default gain)21 dB t  a 34 dB t  a 22 dB t  a 34 dB t  a
LNB power (optional)Internal 13/18V @ 700mA, with switchable toneInternal 13/18V @ 700mA, with switchable toneInternal 13/18V @ 700mA, with switchable toneInternal 13/18V @ 700mA, with switchable tone
SFDR109 dB Hz 2/3 t  a -109 dB Hz 2/3 t  a -
Reference sidebands60 dBc t  -60 dBc t  -

a nominal input power @ 0dB optical loss
b measured at 1dB optical loss
c measured at 5dB optical loss
h default gain setting
t  typical

 

Optical Performance Characteristics

 L-Band HTSReference
Laser typeDFB with WDM optical combinerDFB with WDM optical combiner
Optical wavelength1550 nm ± 20 nm1310 nm ± 20 nm
Optical power output4.5 dBm (nominal)4.5 dBm (nominal)
Optical connectorSC/APC (E2000/APC and FC/APC options)SC/APC (E2000/APC and FC/APC options)

 

Temperature Characteristics

 L-Band HTS + 10MHz Link
Operating temperature-20°C to +50°C
Storage temperature-40°C to +70°C

RF Performance Characteristics

 L-Band HTSReference L-Band HTSReference
Impedance50 ohms, duplexed50 ohms, duplexed75 ohms, duplexed75 ohms, duplexed
Frequency range700 - 2450 MHz5-20 MHz700 - 2450 MHz5-20 MHz
Flatness± 1.5 dB (max) a h
± 0.6 dB (typical) a h
± 0.2 dB in any 36 MHz a t
± 0.5 dB (typical) a h
± 0.6 dB (typical) a h
± 0.2 dB in any 36 MHz a t
± 1.5 dB (max) a h
± 0.8 dB (typical) a h
± 0.2 dB in any 36 MHz a t
± 0.75 dB (typical) a h
± 0.8 dB (typical) a h
± 0.2 dB in any 36 MHz a t
VSWR (50 Ohm)1:1.5 t 1:1.5 t 1:1.5 t 1:1.5 t
IMD-62 dBc t c --63 dBc t c -
CNR56 dB t b -55 dB t b -
Test input / output signal -20 dBm0 dBm-20 dBm0 dBm
Maximum input power+15 dBm (without damage)+15 dBm (without damage)+15 dBm (without damage)+15 dBm (without damage)
Gain stability0.25 dB over 24 hours0.25 dB over 24 hours0.25 dB over 24 hours0.25 dB over 24 hours
RF link gain (nominal)+9 dB a 0 dB a +3 dB a 0 dB a
Input IP3+11 dBm t c -+12 dBm t c -
P1dB -1 t dBm+8 dBm0 dBm+3 dBm
Noise figure21 dB t a 34 dB t a 22 dB t a 34 dB t a
LNB power (optional)Internal 13/18V @ 700mA, with switchable toneInternal 13/18V @ 700mA, with switchable toneInternal 13/18V @ 700mA, with switchable toneInternal 13/18V @ 700mA, with switchable tone
SFDR109 dB Hz 2/3 t a -109 dB Hz 2/3 t a -
Reference sidebands55 dBc t -55 dBc t -

a nominal input power @ 0dB optical loss
b measured at 1dB optical loss
c measured at 5dB optical loss
h default gain setting
t  typical

Optical Performance Characteristics

 L-Band HTSReference
Laser typeDFB with WDM optical combinerDFB with WDM optical combiner
Optical wavelength1550 nm ± 20 nm1310 nm ± 20 nm
Optical power output4.5 dBm (nominal)4.5 dBm (nominal)
Optical connectorSC/APC (E2000/APC and FC/APC options)SC/APC (E2000/APC and FC/APC options)

Temperature Characteristics

 L-Band HTS + 10MHz Link
Operating temperature-20°C to +50°C
Storage temperature-40°C to +70°C

 

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