Portable Two Ways Radios - UHF Versus VHF Technology

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					Portable Two Ways Radios - UHF Versus VHF Technology!
Portable two ways radios are no longer confined to police and military
departments. Now, these radios are easily accessible even to the general
public and more and more people have gone in for them. These portable
radio handsets offer wireless connectivity if you happen to be in a
shopping mall with your friend or family and help in tracing each other,
if one of them is nowhere to be found. However, before you decide to buy
one for yourself, it is better to know which one is better for you. Since
UHF and VHF are two technologies that have been employed in these
wireless systems; it would prove helpful to know the difference between
the two.
A huge number of people believe that portable, handheld two way radios
with UHF technology have certain inherent benefits over VHF. However, if
you go through the facts, you would find that similar to any other
technology, both UHF and VHF have merits and demerits. So, it is not
necessary that UHF would be the right choice in every situation.
Before going in for any particular devices, there are numerous factors
that you need to consider such as where do you want to use these two-ways
radios and how and for what purpose or application will they be used.
Furthermore, you cannot keep aside the cost factor as it is always of
prime consideration. Additionally, there are other factors that may
affect your buying decision like whether you would use the equipment
across the different cities or it would confine to a limited territory.
In simple words, you can say that a UHF system does not have an edge over
the VHF in terms of technical capabilities. The foremost advantage of UHF
is that it supersedes the probability of interference due to its more
available frequency spectrum.
There is no denying that interference due to inauthentic outputs from
other radio frequency equipment is comparatively less in UHF frequencies.
It is just because of some of the transmitters being operated at
frequencies which are likely to cause some problem. Even the digital
devices or electrical equipment which are in UHF frequencies tend to
experience lower obstruction. It is possible as the noise gets less
intense with the expanded frequency.
Another important factor is 'cost'. When you have decided to buy two ways
radio, keep in mind that UHF portable handheld radio will cost you more
in comparison to the similar VHF radio. However, the higher cost of UHF
equipment is not unreasonable as expensive ultra-high frequency
components are used in it. Also, the components in UHF radio are more in
number and it is also made up of better material. Other manufacturing
costs in UHF are also higher specifically the amount of time consumed in
adjusting the equipment and its performance verification. It should be
noted here that though, the cost difference between UHF and VHF is on the
decline these days; it is unlikely to vanish altogether.
When it comes to battery life; VHF scores better as its battery life is
always longer compared to its contemporary UHF. If you want to have
larger wireless installation, the cost of antenna splitters, antennas and
preamplifiers is often quite low for VHF equipments; but they give better
performance.
So, from the point of view of cost, VHF finds favour with the masses;
while UHF device has lesser chances of interference. Still the choice can
be affected by a number of applications issues:
No matter whether you go in for VHF or UHF, diversity systems are most
often suggested. Further, it holds more importance for UHF as it is UHF
frequency that gets troubled by dropouts because of multipath.
It would also be noteworthy here that in some specific situations, VHF
devices work better compared to UHF. For instance, since the VHF
frequencies tend to be lower, it is quite possible that they work better
even when the transmitter and receiving antenna are not in each other's
sight. As a matter of fact, most of the UHFs are considered as 'line of
sight systems' as they can provide more range compared to VHFs.
Handheld portable two-ways radio with VHF and UHF technology fulfils
different needs of different individuals. It is up to you to first know
about the technology and then make your decision. Anyways, the fact is
that two ways radios are the simplest way to stay connected wirelessly.
Though their access is only to a limited area but their cost-effective
features make them different, useful and affordable from other means of
communication. Above all, you do not have to worry about the time of
engaging in conversation, as you do not pay any network provider for any
service. Once you buy one, you begin to enjoy its fruitfulness.
Dave Clark is a freelance article writer and has been in the industry for
many years, he has written many books and is very knowledgeable in
various fields, Dave also works for Cushy Sofa a supplier of Memory Foam
Mattresses, Memory Foam Toppers, Memory Foam Pillows, Divans and Memory
Foam Sofas.

				
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posted:10/18/2010
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