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1.19
VERS
ION
05/2
006
WW
W.P
LANA
R.CH
EL.R
U
HEADEND SYSTEMS
1
EASY MODIFIED MODULE COSNTRUCTION.
PROGRAMMABLE MODULE.
SELECTIVITY FOR THE NEAREST NON�ADJACENT CHANNELSNOT LESS 60 dB.
AUTOMATIC GAIN CONTROL (AGC) FOR EACH CHANNEL.
AGC DEPTH 30 dB.
NUMBER OF CHANNELS UP TO 20*.
COMPUTER CONTROL AND DIAGNOSTIC FEATURE (OPTIONAL).
WEAK�SIGNAL RECEPTION MODE.
EACH CHANNEL SIGNAL LEVEL DISPLAYING.
EACH CHANNEL OUTPUT LEVEL CONTROL.
EACH INPUT BUILT�IN VARIABLE ATTENUATOR.
EACH INPUT BUILT�IN INJECTOR FOR FEEDING OF ANTENNAAMPLIFIERS.
HEADEND SYSTEM‘PLANAR�SG3000’
Headend system SG3000 from PLANAR is intended for broadcast signal amplifying and converting.Feature of SG3000 is the reception channel signal transformation to the intermediate frequency(930 MHz). That allows to design channel modules in small from�factor and programmable. UsingSAW�filters at the intermediate frequency ensures high selectivity. SG3000 is programmed withhelp of PS24 programmer or the computer via RS232�PS24 adapter.It is possible to control and diagnose of SG3000 parameters with help of the computer via RS232port (optional).SG3000 contains the main block and changeable modules.The main block contains a power supply and output combiner 20P. Other assembly units ofSG3000 are changeable and can be set depend on a frequency plan.
NOTE. *) Increasing the number of channels is possible while using of the several main blocks.
Figure 2. Headend system «PLANAR�SG3000» structure
1 Channel modules.1.1 Channel amplifiers1.2 Converters2 Input combiner modules.2.1 Input amplifiers sub�module (comes in each combiner composition).3 Central processor module.Controls headend programming and diagnosing processes. SG3000 has the feature to operatewithout of the central processor module (after programming procedure). It allows to use onecentral processor module for several headend systems.
HEADEND «PLANAR�SG3000» CHANGEABLE MODULES COMPOSITION
1.20
VERS
ION
05/2
006
WW
W.P
LANA
R.CH
EL.R
U
HEADEND SYSTEMS
HEAD�END ‘PLANAR�SG3000’REPLACEABLE MODULES CHANNEL
1. MODULES ’PLANAR�SG3000’
Figure 3. Channel amplifier structure
Channel amplifiers K1 and K2 amplify the radio signal of one TV channel.SPECIFICATION
SPECIFICATION
Frequency range, MHz 48-862
Number of channels united in one base block for 20
Number of inputs for 20
Input tap modules attenuation level, dB 10
Noise figure, dB, or less 7
Input level range, dBuV 60-90
Output level deviation at input level deviation in range 60-90 dBuV, dB, or less ±1
Head-end output level, dBuV 72-82
Test port output level, dBuV 60-70
Max current per one auxiliary output, mA 120
Permissible total current of auxiliary outputs, mA 300
Environment condition:temperature, о С 0 +50relative humidity at 25о С, % for 80atmospheric pressure, kPa - 86 -106
Dimensions, mm 425х280х70
Weight, kg: 3,9
К1 К2
Frequency range, MHz 48-230 470-856
Input Level, dBuV 65-95
Gain, dB, not less 35
Selectivity by the nearest non-adjacent channels, dB, not less 60
Flatness, dB, or less 2
HEADEND SYSTEM ‘PLANAR�SG3000’
1.21
VERS
ION
05/2
006
WW
W.P
LANA
R.CH
EL.R
U
HEADEND SYSTEMS
1
Intended for tapping the signal on 1, 2, 4 or 8 channel modules.Each combiner is wideband.
Intended for radio signal range amplification.Input amplifier sub�module comes with the input combiner module.
CHANNEL AMPLIFIER K2 AFR IN RANGE 50 mHz
CHANNEL AMPLIFIER K2 AFR IN RANGE 500 mHz
2. INPUT TAP MODULES’PLANAR�SG3000’
SPECIFICATION
3. INPUT AMPLIFIER SUBMODULES’PLANAR�SG3000’
SPECIFICATION
4. CENTRAL PROCESSORMODULE (СРМ)
Intended for programming and controling of the headend diagnosing process.The software update is made trough the website of the manufacturer.Completed COM port cable (optional).
Input tap model 1Р 2Р 4Р 8Р
Number of outputs 1 2 4 8
Gain, dB (with input amplifier submodule) 3 3 3 1
Input amplifier model А1 А2
Frequency range, MHz 48-230 470-856
Gain, dB 5
HEAD�END ‘PLANAR�SG3000’ REPLACEABLE MODULES CHANNEL
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