PBN

LE1G

Line Extender – for 1 GHz HFC Applications – with 1 or 2 RF ports

X

AOCM3900 datasheet LE1G Datasheet

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LE1G

About the Product

The PBN LE1G line extender is designed to provide a very cost-effective, superior performance solution for the end-of-line forward-path HFC application.

The LE1G is an economical method for minimizing in-field HFC distribution nodes and allows for longer distances between the customer and node. This is an excellent system solution when subscribers are spread across large distances. It is also suitable for small systems, for boosting the RF level.

The superior frequency response, of up to 1000 MHz, allows crystalclear reception of analog and digital cable television channels in NTSC, PAL, DVB-C, DVB-T, and HD (High Definition) television standards.

The LE1G is IP67 rated and suitable for outdoor and indoor applications. The unit is available with one RF output port or with two amplified RF output ports.

The LE1G employs advanced scalable technology to provide a costeffective and flexible solution for expanding network architectures.

  • Advanced GaAs FET RF hybrid technology provides excellent performance
  • Rugged and reliable signal amplifier for easy integration into HFC solutions
  • High performance linear RF amplification for excellent CATV reception of analog and digital television channels
  • Compatible with NTSC, PAL, DVB-C, DVB-T, HD (High Definition) television standards
  
  • Frequency range up to 1000 MHz for analog and digital cable television channels
  • 15 ampere current capacity (steady state) and 25 ampere surge survivability
  • Plug-in, self-contained diplex filters
  • Slope control using normal attenuator pad instead of EQ pad
  • Removable boat for easy maintenance and field repair
RF Performance
RF bandwidth Return path (1) Forward path (2)
Option [Y] = 3045 5 MHz to 30 MHz 45 MHz to 1000 MHz
Option [Y] = 4254 5 MHz to 42 MHz 54 MHz to 1003 MHz
Option [Y] = 5570 5 MHz to 55 MHz 70 MHz to 1003 MHz
Option [Y] = 6585 5 MHz to 65 MHz 85 MHz to 1003 MHz
Amplifier type GaN GaAs
  1 x RF port model 2 x RF port model
RF gain     Forward path ≥35 dB ≥32 dB
Return path ≥24 dB ≥22 dB
RF flatness ± 0.75 dB ± 0.75 dB
RF impedance 75 Ω 75 Ω
RF return loss ≥ 16 dB @ 5 MHz to 1000 MHz ≥ 16 dB @ 5 MHz to 1000 MHz
Hum modulation @ 12 A 70 dB 70 dB
Hum modulation @ 15 A 65 dB 65 dB
RF input test point -20 dB ± 1 dB -20 dB ± 1 dB
RF output test point -20 dB ± 1 dB -20 dB ± 1 dB
Link Performance
Cross modulation > 65 dB > 65 dB
Noise figure < 10 dB < 10 dB
CNR > 62 dB > 62 dB
CSO < -70 dBc < -70 dBc (77ch NTSC, CW
channels + Digital)
CTB < -75 dBc < -75 dBc (77ch NTSC, CW
channels + Digital)
Group Delay Characteristics
Forward path (2) (chrominance to luminance delay)
Frequency (MHz) Delay (ns)
112.25 ~ 116.68 4
119.25 ~ 123.68 3
126.25 ~ 130.68 3
Return path (1) (typical group delay in 1.5 MHz bandwidth for 65/85 MHz frequency split)
Frequency (MHz) Delay (ns)
5.0 ~ 6.5 60
6.5 ~ 8.0 22
8.0 ~ 9.5 12
60.5 ~ 62.0 10
62.0 ~ 63.5 13
63.5 ~ 65.0 16
General
Power supply Option [Z] = 60 30 Vac to 70 Vac    
Option [Z] = 90 50 Vac to 110 Vac
Option [Z] = 220 90 Vac to 264 Vac
Operating temperature -40 ℃ to +65 ℃ ambient
Dimensions (HxWxD) 157 x 254 x 222 mm
Shipping size (HxWxD) 190 x 310 x 240 mm
Net weight 4.0 kg
Shipping weight 4.6 kg

Notes

(1) For units ordered with optional return path RF. See Order Details.

  (2) Measured with 78 NTSC channels and -6 dBc 320 MHz digital channels from 550 MHz to 1000 MHz, 48  dBmV at 1003 MHz and 14 dB slope. Other test conditions’ results such as 42 CENELEC channels, 64 PAL-D channels are available on request.

LE1G-IEQ-[dB]

Forward inverse plug-in equalizer
where [dB] is the desired equalization in dB. Available in 1 dB increments from 0~10dB.
LE1G-DPL-3045 5~30 / 45~1000 MHz frequency-split diplexer pad ***
LE1G-DPL-4254 5~42 / 54~1003 MHz frequency-split diplexer pad ***
LE1G-DPL-5570 5~55 / 70~1003 MHz frequency-split diplexer pad ***
LE1G-DPL-6585 5~65 / 85~1003 MHz frequency-split diplexer pad ***

*** Diplexer pads are supplied with each LE1G unit, as specified at time of purchase. Separate diplexer pads can be ordered to reconfigure the unit if requirements change.

LE1G-[W]-[X]-[Y]-[Z] Line extender for 1 GHz HFC applications
Options:  
W  
1P One RF output port
2P Two RF output ports
X  
0 No return path
1 With return path
Y  
0 No frequency split
3045 5~30 / 45~1000 MHz frequency split
4254 5~42 / 54~1003 MHz frequency split
5570 5~55 / 70~1003 MHz frequency split
6585 5~65 / 85~1003 MHz frequency split *
Z  
60 30~70 Vac coax line power input **
90 50~110 Vac coax line power input
220 90~264 Vac line power input

* 65/85 MHz frequency-split option is the default for orders that have not been specified otherwise.
** 30~95 Vac power input option is the default for orders that have not been specified otherwise.

  • LE1G