bharat electronics
TRANSCRIPT
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A Presentation on summer training
atBharat Electronics Limited(Kotdwara)
Prepared By:
NAME:- SUMIT KUMAR
ROLL NO:- 51
BRANCH:- ELECTRONICS &COMMUNICATION ENGG.
G. B. PANT ENGG. COLLEGE
PAURI GARHWAL (UTTARAKHAND)
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Contents
• Introduction to Bharat electronics
• Units of BEL
• Products of BEL
• Study of VPS
• Features
• Advantages of VPS
• Disadvatages of VPS
• Applications
• Conclusion
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Introduction to Bharat electronics
set up at Bangalore,under the Ministry of Defence in 1954.
BEL Bangalore is the coorporate office
9 units
350 product
R&D lab
multi-product, multi-unit and multi-technology
NAVARATNA PSU company
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Products of BEL
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Participations of BEL
Study of Versetile portable system
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The secure UHF handheld radio
LUP 291:----(Low Power, UHF& Portable)
Lightweight and portable trans-receiver
used for ground communication
operates in the UHF frequency band of 403 to 470 MHz .
The radio provides for clear & secure voice communication
Channel spacing 12.5/25 khz
Designed by PANCHKULA plant
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Pictures of Versetile portable system
Configuration details
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TOP VIEW OF VPS
T=TONE MODE C=CARRIER MODE
S=SECURE MODE M=MENUAL SLECTION
P=PROGRMMING MODE B=BITE MODE
N2=CLONE MODE E=ERASEMODE
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Features
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Controling
Battery
Antenna
Temperature range (-30*c<T<50*c )
Voltage range 1<V<15
Received field strength Eo=300*√P
d
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Description of VPS
Clear and secure modes of operation
150Hz tone or carrier operation
Built-in high grade digital secrecy
Secure key selection (32 keys)
Manual key entry (key 33)
Selective call facility
32 Preset channel (4 banks of 8 channel each )
1 Manual channel
Preset & programming facility
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How it works
Old VPS New VPS
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HT BASIC SOFTWARE
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Modes to programme VPS
VPS—VPS (CLONING)
PC—VPS
PC—FILLGUN—VPS
LUP
• Higher Frequencies
• shorter wavelength
• small antenna
• Better Quality
• Less Range
LVP
• Lower Frequencies
• greater wavelength then uhf
• Larger then uhf
• Lower Quality
• More Range
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LUP versus LVP
YEARS
Production chart
Light weight
No need of repeater for communication
Security
Easy to use
Portable
Loudspeaker facility
Short length of the radio antenna
ON/OFF facility18
Advantages
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Disadvantage
Limited broadcast range
Power Needs
Only one conversation at a time can
occur on each channel
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Applications of VPS
Uses by Defence in communication
Railway department
Police department
Fire department
Traffic police department
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CONCLUSION
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QUERIES