Refurbished Electronics offer great savings. However, they come with a shorter warranty. New electronics can be very expensive; but they come with a longer warranty. It really comes down to your personal preference.

Refurbished electronics advantages are too numerous to list in this single article. The price difference between new electronics and refurbished ones is probably the most important of all the advantages of refurbished electronics. However refurbished products do have their disadvantages also. -There is no benefit without cost and there is no cost without benefit.- We do not know who made this statement; but we know it has to do with economics.

This economics principle stands true when it comes to refurbished electronics advantages and disadvantages. Should you buy brand new electronics or refurbished electronics? Obviously, that is a question only you can answer.

In spite of the great price benefit that comes with buying refurbished electronics, some people still prefer to buy brand new even if that means more debt. Others would prefer to save the money and buy only refurbished electronics. It is all a matter of personal preference and opportunity costs. The best we can do is to point out some of refurbished electronics advantages and disadvantages. Refurbished Electronics: Advantages and Disadvantages

1. Refurbished electronics can be up to 80% cheaper than new ones. For example, a refurbished Samsung HP-R4252, 42- Plasma HDTV with turner and all the bells and whistles costs about $750.00. A new one costs about $3,200.00. That is a 76% off from the original price.Clearly these are some great refurbished electronics advantages.

2. If you were to add $249.99 for a 3 year extended warranty onto the already discounted price ; you would pay roughly one-third (1/3) of the original price. That is, [($750.00 + 249.99)/ $3,200.00]X100= 31%, roughly 1/3 of the price.

3. Refurbished electronics sport the exact same technology as new ones.

4. Other refurbished electronics advantages come in the form of reliability. These products are rigorously tested for optimum performance. They must meet the same factory specifications as new ones.

In our opinion, there is one disadvantage with refurbished electronics – the manufacturer warranty. You only have a 90-day warranty on refurbished electronics instead of the standard 1-year warranty.

While some people may fuss about that, we believe it is a fair deal. Since the refurbished item has been thoroughly tested and met factory specifications, nine months worth of warranty is served through the refurbishing process.

However, if you insist on having a longer warranty you can buy an extended warranty for 3 to 5 years ranging in price form $30.00 to $150.00 and up respectively. Note that even with the added extended warranty you still save a boatload of money.

So, buying refurbished electronics give you the opportunity to own a high end, late model electronic gadget without swiping away your life savings. Way to go! Buy refurbished electronics!

New Electronics: Advantages and Disadvantages

There is only one advantage in buying brand new electronics – The warranty. Unlike refurbished electronics, new items are sold with a 1-year warranty. You can buy a refurbished electronic, then buy an extended warranty for the peace of mind. You will still have a better deal.

The one year warranty that comes with the new item makes perfect sense. Manufacturers do not test every new product. They simply test a sample from a batch.

If the percentage of successful tests satisfied a pre-set standard; they assume that all products from the batch will work. The truth is there is no guarantee they will. That is why they give a full year warranty on them.

New items are only randomly tested. So they are susceptible to breaking down. For this reason, a longer warranty is offered on it. It is clear that refurbished electronics advantages outweigh new electronics advantages.

Our advice is simple; you don’t need to work your life away for a one year warranty. You can enjoy a greater peace of mind if you buy an extended warranty on refurbished electronics. Just remember:

Refurbished electronics are tech

The curvature of earth produces two effects firstly it reduces the difference in the path lengths between the direct and ground reflected waves by raising the point of reflection above that of a plane earth and as a result tends to reduce the strength of the received field, secondly curvature of the earth causes the reflection at the ground to take place from a spherical rather than a flat surface so that the reflected ray becomes divergent and consequently becomes weaker at the receiving point. This tends to increase the field strength of the total space wave at the receiving point. These two opposite effects produced by the earths curvature almost neutralize each other. As a consequence, the assumption of a plane earth yields results which remain valid in spite of considerable curvature of earth. The condition in the troposphere keeps on changing with time. Hence the amount of bending of refraction of waves also changes from time to time. This influences the relative path length of the direct and the ground reflected components of space wave. Hence the field strength of the resultant space wave at the receiving point changes, i.e. fading of the wave results. Small but abrupt discontinuities in the dielectric constant of air existing at the boundaries of air masses of widely different characteristics result in mirror like reflections. Such reflections may cause signal to be received at the points beyond the line of straight range. Fading may also be caused.

The distance traveled by the direct ray in the troposphere from transmitting antenna to the receiving antenna and the field strength of this direct ray at the receiving antenna. If the reflection at earth is prefect, the magnitude of the field strength due to ground reflected ray will be approximately equal since the total distance traveled by the indirect ray is approximately equal to the distance traveled by the ray. However the reflection co-efficient at the ground is p then the magnitude of the indirect ray is equal. The direct ray and the ground reflected ray combine vector ally at the receiving antenna. The phase difference in the two field strength is caused by the following two factors, path difference and phase shift caused due to reflection from ground. We revel, some important properties of the propagation of very high frequency. The field frequency strength increases linearly with the height of the transmitting antenna, linearly with the height of receiving antenna, linearly with the square root of the effectively radiated power. The field strength varies with the wave length and inversely with the square of the distance. In all we can say earths curvature has many effects on troposphere propagation.