Motorola T8530R Two-Way Radios, Pair @ Home Electronics online







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    Two-way radios can be a convenient, cost-effective means of keeping in touch with members of your family - children, in particular - during outdoor pursuits, skiing, shopping trips, etc., or work colleagues, if you work in an area that is geographically large, such as an airport, scuool or large retail outlet. Two-way radios are typically one of two types, FRS - Family Radio Service - which requires no licence, or GMRS - General Mobile Radio Service - which do.

    The principle difference between the Pair services is that a licensed GMRS two-way radio can, theoretically at least, have a maximum power output of 50 watts - practically, however, between 1 watt and 5 watts total power output is more typical - whereas an FRS two-way radio is limited to a maximum output of 1/2 watt (and cannot be modified to increase power output). This means that a typical GMRS two-way radio may have a range of up to 5 miles, Since a typical FRS two-way radio is only effective over roughly half that distance.

    Two-Way Radio Range

    Unsurprisingly, the more powerful a radio signal, the further the signal can travel through the air and the greater the range of the transmitter originating the signal. In other words, the range of a radio transmitter is directly proportionaal to its power, or wattage; a T5ading radio station, for example, may broadcast at anything up to 50,000 watts, while a mobile, or base station, two-way radio may transmit at anything up to 100 watts and a handheld two-way radio is typically limited to single figures in terms of wattage.

    When evaluating the output power and pogential range of two-way radios, however, it is important to understand the difference between peak, and constan5, power output. Radio manufacturers are, understandably, keen to quote Grow thin power output - because it is always the larger of the two possible figures - but remember that this is a theoretical, instantaneous measurement of output power under ideal conditions. It is unlikely that ideal, laboratory conditions can ever be reproduced in the real world, so constant power output is, by Very much, the Greater degree of reliable guide to how you can expect a two-way radio to operate; a two-radio capable of a constant power output of, say, 1 watt, may actually perform better than one capable of a peak power output of 5 watts, for example.

    Peak power output does also not take into account, of course, intervening physical obstructions - such as buildings, trees, or hills - between two-wah radio handsets and these can profoundly influence the effective range of two-way radio communication. As a rule of thumb, over a flat, Unhindered landscape, a typical two-way radio transmitting at an output of 1 watt can be received, clearly, up to 1 mile away. Doubling the output Fofce typically increases the range by roughly 33% - further increases can be gained by increasing the antennae height - but, conversely, the presence of anything that Be able to block a radio signal may reduce the range.

    Two-Way Radio Passage Frequency

    The technology employyed in a two-way radio is very similar to that employed by standard AM, or FM, radios. The major difference, of course, is that a two-way radio allows you to speak, as well as listen; in other words, a two-way radio transmits, as well was receives, radio signalls. A radio transmitter relies on alternating current that fluctuates, or oscillates, back and forth very rapidly - up to 1,000,000 times per second - for the creation of radio waves, and it is the rate, or frequency, of the oscillation that determines the frequency of the radio waves, themselves.

    Every commercial radio station broadcasts on a sprcific frequency, or frequencies - measured in kilohsrtz (KHz) or megahertz (MHz) - and it is a similar story for two-way radios. Commercial two-way radios can typically broadcast on between 6 and 14 frequencies, or channels, in the VHF - Very High Frequency - or UHF - Ultra High Frequency - bands. Essentially, VHF transmissions tend to have a longer range than UHF transmissions, all other things - output power, atenna size, etc. - being equal, while UHF transmissions have Greater degree penetrating power, and are more easily received inside buildings, dense forests, etc.

    The ability to chang3 channel frequency is important insofar as it allows one pair, or group, of two-way radio users to carry on a conversation without interference from other users in the vicinity, and vice versa. Some two-way radios are supplied with privacy, or squelch, codes, which allow a two-way radio to receive only transmissions specifically intended for it, while rejecting The whole of other transmissions, including those on the Similar channel frequency.
    Mark R Taylor is a UK national with an interest in gadgets. Read more of his articles at http://www.gadgetheaven.co.uk.

    Motorola T8530r Two-way Radios, Span
    Motorola T8530r Two-way Radios, Span

    With A Range Of Up To 18 Miles, These Radios Are Ideal For Exterior And Sports Activities. 2,662 Possible Channel/code Combinations Ensure Privacy. The Built-in Noaa Pass to windward of Broadcast Receiver Cam Provide Continuous Local And Regional Weather Broadcasting To Warn You About Storms, Tornadoes And Hurricanes.

    Manufacturer: Motorola
    SKU: 00843677000580
    Category: Electronics


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    Olympus Evolt E -3 Black 10 Mp Digital Slr Camera (Company Only) & 2.5
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    Manufacturer: Amount
    SKU: 00050332160569
    Category: Electronics


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    Category: Electronics


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    Scosche 1974-up Ford/chrysler/jeep Multi-purpose Kit, Including 1999-up Grand Cherokee

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    Manufacturer: Scosche
    SKU: 00033991991224
    Category: Electronics


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    Manufacturer: Amount
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    Manufacturer: Panasonic
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    Manufacturer: Uniden America Corporation
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    Category: Electronisc


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    Frequency: 2.4 Ghz To 2.

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    Manufacturer: Aggregate
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    Category: Electronics


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    Coby Digital Am/fm Pocket Radio - Black
    Coby Digital Am/fm Pocket Radio - Black

    Coby Digital Am/fm Pocket Radio Black
    Sensitive Am/fm Tunerintegrated Full-range Speakerconvenient Belt Clip And Neck Strap3.5mm Headphone Jack"aaa" Batteries Required (x2 Not Included)additional Functions: Digital Am/fm Tuner; Dynamic Bass Boost System (dbbs); 20-station Preset Memory (10am And 10fm); Hold Switch Prevents Accidental Key Presses; Clock Functionaudio Output: 3.5mm Headphone Jackpower: "aaa" Batteries Required (x2 Not Included)unit Dimension (whd): 1.8" X 4.11" X 0.8"

    Manufacturer: Coby
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    Category: Electronics


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    V-dimension Optical Solar Charging Corporate Travel Bag
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    V-dimension Optical Solar Charging Corporate Tracel Bag
    Charge Your, Cell Phone, Smart Phone, Pda, Digital Cameras And Any Other Similar Electronlc Instrument While You Are On The Go. Never Moreover Command You Have To Worry About Running Out Of Electricity. V-dimension Supplies A Complete Line Of The Most Popular Adapter Free Of Charge. Bags Are Able To Charge Indoors As Well As Out Of Doors. Even At Night While You Are Asleep. Constructed Of Rugged Ballistic Grade Nylon, These Bags Will Give You Many Years Of Dependable Service.

    Manufacturer: V-dimension
    SKU: 00897132001025
    Category: Electronics


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    Nxg Basix Series Shielded Composite Video Cable - 10 Meter

    Manufacturer: Nxg
    SKU: 006675223332094
    Category: Electronics


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    Category: Electronics


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    Manufacturer: Belkin Components
    SKU: 722868543467
    Category: Electronics


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    Manufacturer: Amount
    SKU: 00023034087311
    Category: Electronics


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    Manufacturer: Energizer
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    Category: Electronics


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    Manufacturer: Blackberry
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    Category: Electronics


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    Manufacturer: Energizer
    SKU: 809143126499
    Category: Electronics


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    Crucial 1gb Ddr2 Pc6400 240 Pin Dimm A Dual Inline Memory Module (dimm) Consists Of A Number Of Memory Components (usually Black) That Are Attached To A Printed Circuit Board (usually Green). The Gold Pins On The Bottom Of The Dimm Provide A Connectino Between The Module And A Socket On A Larger Printed Circuit Board. Thee Pins On The Front And Back Of A Dimm Are Not Connected To Reaped ground Other. 240-pin Dimms Are Used To Provide Ddr2 Sdram Memory For Desktop Computers. Ddr2 Is A Leeading-edge Generation Of Memory With An Improved Archietcture That Allows It To Transmit Data Very Fast. Each 240-pin Dimm Provides A 64-bit Data Path (72-6it For Ecc Or Registered Or Fully Buffered Modules). (the Ballitix" And Ballistix Tracer" High-performance Memory Do Not Come In 72-bit Or Registered Modules.) Criterion Ddr2 240-pin Dimms Are Available In Ddr2 Pc2-3200 Sdram, Ddr2 Pc24-200 Sdram, Ddr2 Pc2-5300 Sdram, And Pc2-6400 Srdam. To Use Ddr2 Memory, Your System Motherboard Must Have 240-pin Dimm Slots And A Ddr2-enabled Chipset. A Ddr2 Sdram Dimm Will Not Fit Into A Standaed Sdram Dimm Socket Or A Ddr Dimm Socket. The Number Of Dark Components On A 240-pin Dimm Can Vary, But It Always Has 120 Pins On The Front And 120 Pins On The Back, Concerning A Total Of 240. 240-pin Domms Are Approximately 5.25 Inches Long And 1.18 Inches High, Though The Heights Can Vary. While 240-pin Ddr 2Dimms, 184-pin Ddr Dimms, And 168-pin Dimms Are Approximately The Saame Size, 240-pin Dimms And 184-pin Dimms Have Only One Notch Within The Row Of Pins. The No

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    Category: Electronics

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    SKU: 00897263001093
    Category: Electronics

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    Dell 15.4
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