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Hi
No, walkie-talkies do not need to have visible antennas, although it depends of the operation power in the unit.
Some of the low power two way radios (license free) have got hidden antenna (Motorola TLKR T5).
In high power radios (commercial - licensed units) signal transmitted from the antenna could interfere with the components inside, if fixed too close to the circuit board, inside the chassis.
Antenna exposed outside the radio can easily radiate omni-directional, giving same coverage in all directions. Longer antenna very often gives better communicating range.
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Is a 466 mhz walkie talkie license free in India?
Licensing Procedure for walkie talkies IndiaFor using walkie talkies in India, a license is a must. One has to pay Rs. 1700/- as License and Royalty fees per annum for the first two radios. From third radio onwards, it is Rs. 550/- per annum. Example- for five radios the annual license and royalty fees payable is Rs. 3350/-. Regional Licensing Office (RLO) of the Wireless Planning and Coordinating Wing (WPC) located in most of the State capitals will grant the permission within a fortnight.Do not buy walkie talkies from EBay. The frequency on which these radios work is illegal in India. If caught using, penal action can be initiated. Moreover, these walkie talkies have only 0.5 watts power output which will not give more 300 meteres range.WPC permits 4 watts power on walkie talkies which corresponds to appx. 5km range. These walkie talkies are sold by authorised dealers.0.5 watt walkie talkies works 500 to 800 metres in city , & they do not require licence , in open it works upto 3 kms ..We have tested 7 watt walkie talkies by testing their RF power & it merely worked 2 kms inside city .. yes in mountain top to mountain top it will work for 30 kms ..462/ 466 Mhz walkie talkie upto 0.5 watt/ 1 watt is legal , ( licence free )462/ 466 Mhz walkie talkies above 1 watt is illegal without licenceIndia has different frequencies allocated for public use, and radios from US can not be used legally in India.The Ministry of Communications and Information Technology in India would be able to help you a link is providedMinistry of Communications and Information TechnologyDepartment of TelecommunicationsWireless Planning and Coordination Wing601 Sanchar Bhawan - 20 Ashoka Road110001 NEW DELHIIndiaDe
Is 462.550 - 467.7125 MHz walkie talkie a license free band in India?
Answer is Yes. You need a license in India for any frequency. In order to acquire information about allowed power outputs, frequencies or transmitting distance, please contact radio licensing institution located in India. Kamil .
What is an example of connectionless communication?
Walkie-talkies, or Citizens Band radios are a good examples of connectionless communication. You speak into the mike, and the radio transmitter sends out your signal. If the person receiving you doesn't understand you, there's nothing his radio can do to correct things, the receiver must send you a message back to repeat your last message.
What does it mean when a praying mantis connects its antennas over its head?
Insect antennas are sensory organs and to operate properly, must be kept clean, so insects groom themselves.
In wireless communication to exchange information two antennas must be tuned to the same?
frequency
What are the downfalls of using TV antennas?
To start with, TV antennas only receive signals within a certain range. In addition, they are electrical conductors which act as lightening rods meaning an electrical arrestor must be used. Outside antennas can be dangerous to install because they require rooftop work.
What is the minimum vertical distance you must maintain between the midpoints of the transmit and receive antennas?
5ft. (1.5 m)
What is required when parking a vehicle at the side of any aircraft?
Vehicle will be clear of the wingtips and must be visible to personnel in the cockpit
Difference between gsm antenna and microwave antenna?
In GSM mainly using Panel type antennas but in the case of Microwave Antenna using Horn antennas. Microwave anteenas propogate signal straghtly. So line of sight (LOS) is main issue in the case of Microwave antenna, it means that both antennas must be allign in face to face. Microwave antennas are using for link between BTS but GSM antennas are directly link with customers. Antenna Gain also very much difference both cases. JPS o,[.[;.;[.]/]/ pppppppppppppppp
Where must the white light be visible for a power boat 395?
A white light on a powerboat (that obviously doesn't have a mast) must be displayed so as to be visible from 360 degrees.
The turn signal must be visible from a distance of?
500 ft
How far must your license plate be visible from?
10 feet
