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MICROWAVE LINKS

MICROWAVE LINKS




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MAIN FEATURES:
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  • Modular construction.
  • Conventional cooling.
  • AGC and ALC controls.
  • Available in mono-or bi-directional
    version.
  • Excellent noise figure.
  • Programming of local oscillator from front panel.
  • Multifunction digital display.
  • Low power consumption.
  • Mains or battery-fed power supply.

SCB 8514-30 1W 10 GHz MICROWAVE LINK
 

The SCB series microwave links have beendesigned according to cutting-edge concepts and technologies for thetransmission of high-quality television signals.
The modular construction with its high degree of integration enablesany of the three configurations available (transmitter, receiver ortransposer) to be housed in a single 3-unit rack.


10 GHz 1W R.F. Amplifier module

The system allows the transmission andreception of 1 video and up to 4 audio analogue or digital channels for
both point-to-point applications and multi-hop connections using thestandard 70 MHz intermediate
frequency for the heterodyne conversion.

The excellent spectral purity of the conversion oscillators endowsthese units with an excellent signal/noise ratio in both transmissionand reception.

The SCB series microwave links are available in different frequencyranges from 1.4 to 24 GHz and with different output powers in both theinternal and external RF head versions; in the latter case, theexternal head is connected to the internal console by a single coaxialcable via which pass both the I.F. signal and the power supply.

For particularly difficult connections, a series of externalsolid-state amplifiers, including high-power ones, is also available.



Freq. (GHz)1.4 - 3.83.8 - 7.27.2 - 8.58.5 - 10.710.7 - 14.517 - 1921 - 23.6
ModelSCB 1438SCB 3872SCB 7285SCB 8514SCB 1014SCB 1719SCB 2123
+13      
+17     
+20      
+26      
+27      
+30   
+34      
+37     
+39      
+40    
+41      
+43     
+44     
+46     
+47     
+49     
+50     
+52      
+53      
+56      

Other features andfrequencies available on request.
Specifications and characteristics are subject to change without notice.

TECHNICAL CHARACTERISTICS
GENERAL

Modulation
System capacity
System deviation
Emphasis
I.F. frequency
I.F. level
Operating temperature
Maximum relative humidity
Power supply

FM
1 Video + 4audio
8 MHz p.p.
CCIR Rec. 405or FCC
70 MHz
0 dBm, 75 Ohm
-10°C to+45°C
90%, noncondensing
90 to 260 V ACor 48 V DC

TRANSMITTER
Frequency stability
I.F. return loss
±5 ppm
> 26dB
RECEIVER
Noise figure
I.F. bandwidth
I.F. return loss
A.G.C. dynamic
< 5 dB
28 MHz
> 26 dB
> 50 dB
VIDEOPERFORMANCES (single hop at RCL = -35 dBm)

Frequency response (300 Hz to 5.5 MHz)
2T
Differential phase
Differential gain
Sync compression or expansion
Amplitude / Frequency response
Group delay
S/N ratio (noise weighted, 100 kHz to 5 MHz)
In / Out level

±0.5 dB
< 1%
< 4°
< 1%
< 1%
±0.3 dB
±8 ns (throughout the vision band)
> 68 dB
1 V pp, 75 Ohm
AUDIOPERFORMANCES
Sub-carriers frequency (CCIR)
Sub-carriers frequency (FCC)
Deviation
S/N ratio @ nominal deviation
Distortion
In / Out level

7.500, 8.590, 7.020, 8.065 MHz
6.200, 7.500, 6.800, 8.300 MHz
±75 kHz
> 68 dB
< 0.5% @ 1 kHz
0 dBm, 600 Ohm


Specifications andcharacteristics are subject to change without notice.


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