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Hi this is Frank
I just wanted to throw up a quick site to tell you about the usefulness of 2 way radios.
Mobile phones are all very well but if you are out of range in the country or traveling in difficult terrain then a 2 way radio is just what you need to help you keep in touch.
Especially good for expeditions into the wild a 2 way radio can mean the difference between being able to keep in touch with the rest of the party or going it alone and hoping that you will all meet up safely at the agreed time and place.
What are 2 way radios?
A 2 way radio is a radio that transmits as well as receives radio signals. Because of this it is sometimes known as a transceiver.
2 way radios are different from ordinary radios in that they can not only receive signals but transmit them as well.
The typical type of 2 way radio that you might see is a handheld device where a person using it presses a button to speak or transmit and releases a the button to receive. You often see people at airports using these to communicate with other ground staff.
The 2 way radio started life in police cars and very quickly became an essential part of transportation vehicles especially those used by the emergency services.
There are typically two types of technologies used, conventional or trunked radios.
In the conventional system a fixed radio frequency is used although it can operate on more than one channel the operator has to select this manually.
In order to get the 2 way radio to select the channel automatically a user has to move over to a trunked system.
Under this method a computer automatically chooses the channel and in digital trunked radios it is possible to hold several simultaneous conversations on the one channel. This process is known as multiplexing and examples of phones that are capable of this are Motorola 2 way radios and walkie talkie radios.
A final distinction to make for 2 way radios is that of simplex and duplex and this refers to whether a single or different channels are used for transmitting and receiving. Simplex systems use a single channel but are the older technology. Duplex systems transmit and receive on separate channels the main advantage being that use of a repeater station is possible which can extend the range of the 2 way radio device.
Motorola 2 way radios
Motorola have a very extensive range of communication equipment and 2 way radios feature prominently.
For personal users the main advantage of using a 2 way radio is that once purchased there are no call charges or line rental.
The usual features of a mobile phone are there however such as variable ring tones but you do not have to worry about whether you are out of range of a transmitter, just your partner.
The better models will feature an out of range warning sound for this purpose.
People use them for a variety of purposes ranging from keeping in touch when out mountain biking or on a camping trip or perhaps keeping in contact whilst using several cars on a long journey.
A product like the T9500 Motorola 2 way radio comes complete with a dual charger, rechargeable battery packs, 25 channels, belt clips and two handsets.
The range is quoted as being up to 25 miles but this is optimistic and is affected by terrain, weather conditions and obstructions.
The color and size make this an attractive offering.
At the other end of the price range are the FV300R Motorola 2 way radios. These little devices have a stated range of up to ten miles and come with rechargeable batteries as their power option.
Although not as fully featured as other Motorola 2 way radios they offer a cheap way of getting into the world of 2 way radios and are not too expensive to replace should the unforeseen happen.
With some eleven models in the range it is likely that you will find a suitable Motorola 2 way radio to fit your purpose.
The Binatone 2 way radio
The Binatone 2 way radio range has less offerings than the equivalent range from Motorola.
There appears to be only 3 models in the range the Latitude 105 plus starts off the range as an entry level 2 way radio. This is followed up by the Latitude 100 and the Latitude 650 which has an extra long range of 10km.
In appearance and features though the Binatone range definitely lacks the rugged looking feel of the Motorola range.
It would appear that if you are looking for 2 way radios then the Binatone 2 way radios will offer you a budget entry level option.
This is not to say that they are a bad choice, as a cheap option for everyday use the Binatone 2 way radio offers a low cost solution that is easily replaced.
However, if you are looking for something more sturdy than a Binatone 2 way radio then the Motorola range appears to offer you a more rugged option that looks as if it will take the knocks likely to be received in outdoor pursuits.
UHF or VHF?
There are two main formats for 2 way radios and those are Ultra High Frequency (UHF) and Very High Frequency (VHF).
The two systems have different applications depending on the terrain of the area in which they are used.
The determining factor is the wavelength used in each system. UHF has a shorter wavelength and this makes it a better choice if your 2 way radio signal has to pass through buildings or encounters rough terrain that provides many obstacles.
VHF on the other hand has a longer wavelength and this allows it to transmit further but the conditions must be favorable that is no major obstacles in the way.
Therefore if you are expecting to use your 2 way radio outside and there are no major natural obstacles and you provide your base station with a suitable antenna, then you will probably be better off with a VHF radio system.
There is a correlation between antenna height and the distance traveled, so the higher you can place the antenna the further will be the range of the 2 way radios.
However if you are expecting to use your 2 way radio inside a building such as an airport or warehouse then you will be better of with a UHF system as it will better cope with obstructions such as walls and furniture.
