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Gain Control Amplifiers meant to take care of RF Signal variations due
to various reasons. These are one-way amplifiers i.e. forward path only
and are designed for 550MHz & 750MHz. These are used as Line Extender
Amplifiers having channel loading capacity of 67 channels and 92 channels
respectively. These have aluminum, rust proof body.
Features:
 Automatic Gain Control
Range + 6dB
Easy Installation
Hybrid IC Protected
Plug-In Fixed Slope Card
High Voltage Surge Protection
Aluminium Housing
Optimum for Trunk Distribution
Efficient Heat Dissipation
Low Circuit Temperature
gives Longer Life
Plug In Slope Card
Excellent Level Flatness
Mains Cum Power Pass
Voltage Selection LED
for Easy Selection
Why
AGC Amplifier is required:
Every Cable System having many amplifiers in cascade is likely to have
a signal variation, which may be due to any of the following reasons:
(i) Variation in cable losses due to temperature
(ii) Voltage variations in the power supply
(iii) RF signal variation in the Control Room
Where to Use:
We recommend you to use our AGC Amplifier after every third or fourth
amplifier depending upon your system requirements. Sharp Vision AGC
Amplifier can be installed in all the systems having channel 12. Channel
12 frequency is being used as pilot frequency. (Channel 11 frequency
can also be provided on request).
Models:
AGC 8080 : Freq. 40 ~ 550MHz (67 Ch loading capacity)
AGC 9090 : Freq. 40 ~ 750MHz (92 Ch loading capacity)
Specifications:
Gain : 30dB
AGC Range : + 6dB
Pilot Frequency : Ch E12 (224.25MHz)
Adjustable Gain : 0~20dB Adjustable
Adjustable Slope : 2~20dB Adjustable
Output Level : <105dBµV
Slope (Fixed) : 9/12/15dB (Optional) (Standard 0dB)
(for 550/750/860MHz)
Flatness : + 0.75dB
Return Loss : > 14dB
Noise Figure : < 7dB
Monitor : -20dB
Mains Voltage : 220VAC + 10%, 50Hz
Power Pass : 30/40/50/60 VAC (Selection with Slide
Switch)
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