L-Band HTS & Reference

The ViaLiteHD L-Band HTS (700-2450 MHz) 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

Datasheets

Product Inquiry

ViaLiteHD Receive path L-Band HTS and Reference link diagram

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 0-600 km.

RF Performance Characteristics

	L-Band HTS	Reference	L-Band HTS	Reference
Impedance	50 ohms, duplexed	50 ohms, duplexed	75 ohms, duplexed	75 ohms, duplexed
Frequency range	700 - 2450 MHz	5-20 MHz	700 - 2450 MHz	5-20 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	-
CNR	56 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 stability	0.25 dB over 24 hours	0.25 dB over 24 hours	0.25 dB over 24 hours	0.25 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 tone	Internal 13/18V @ 700mA, with switchable tone	Internal 13/18V @ 700mA, with switchable tone	Internal 13/18V @ 700mA, with switchable tone
SFDR	109 dB Hz 2/3 ^t^a	-	109 dB Hz 2/3 ^t^a	-
Reference sidebands	60 dBc ^t	-	60 dBc ^t	-

^anominal input power @ 0dB optical loss
^bmeasured at 1dB optical loss
^cmeasured at 5dB optical loss
^hdefault gain setting
^ttypical

Optical Performance Characteristics

	L-Band HTS	Reference
Laser type	DFB with WDM optical combiner	DFB with WDM optical combiner
Optical wavelength	1550 nm ± 20 nm	1310 nm ± 20 nm
Optical power output	4.5 dBm (nominal)	4.5 dBm (nominal)
Optical connector	SC/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 +60 °C ^e
Storage temperature	-40 °C to +70 °C

^eDatasheet parameters based on temperature range -10 °C to +50 °C, refer to user manual for performance parameters at -20 °C to +60 °C.

Popular Configuration Example

HRT-J1-8D-83-W1550
L-Band HTS and reference link with built in RF duplexer and LNB control, 50 ohm SMA and SC/APC connectors

RF Performance Characteristics

	L-Band HTS	Reference	L-Band HTS	Reference
Impedance	50 ohms, duplexed	50 ohms, duplexed	75 ohms, duplexed	75 ohms, duplexed
Frequency range	700 - 2450 MHz	5-20 MHz	700 - 2450 MHz	5-20 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	-
CNR	56 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 stability	0.25 dB over 24 hours	0.25 dB over 24 hours	0.25 dB over 24 hours	0.25 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 dBm	0 dBm	+3 dBm
Noise figure	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 tone	Internal 13/18V @ 700mA, with switchable tone	Internal 13/18V @ 700mA, with switchable tone	Internal 13/18V @ 700mA, with switchable tone
SFDR	109 dB Hz 2/3 ^t^a	-	109 dB Hz 2/3 ^t^a	-
Reference sidebands	55 dBc ^t	-	55 dBc ^t	-

a nominal input power @ 0dB optical loss
^bmeasured at 1dB optical loss
^cmeasured at 5dB optical loss
^hdefault gain setting
^ttypical

Optical Performance Characteristics

	L-Band HTS	Reference
Laser type	DFB with WDM optical combiner	DFB with WDM optical combiner
Optical wavelength	1550 nm ± 20 nm	1310 nm ± 20 nm
Optical power output	4.5 dBm (nominal)	4.5 dBm (nominal)
Optical connector	SC/APC (E2000/APC and FC/APC options)	SC/APC (E2000/APC and FC/APC options)