Calculate Transmission delay for the path using a satellite link

I am having a scenario as under.
I need to calcluate approx. minimum round trip for comunication where
path used is a satellite link. consider the transmission in both
direction is via geostationary satellite & travelling at spped of
light(300,000Km/sec). to consider the transmission delay to transmit
the data.

wrote:
I am having a scenario as under.
I need to calcluate approx. minimum round trip for comunication
where path used is a satellite link. consider the transmission in
both direction is via geostationary satellite & travelling at spped
of light(300,000Km/sec). to consider the transmission delay to
transmit the data.

All you need to find is the approximate altitude of a geostationary
satellite and then to do a bit of division.

rick jones
--
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There's only yourself. The belief is in your own precision. - Jobert
these opinions are mine, all mine; HP might not want them anyway...
feel free to post, OR email to rick.jones2 in hp.com but NOT BOTH...

wrote:
I am having a scenario as under.
I need to calcluate approx. minimum round trip for comunication where
path used is a satellite link. consider the transmission in both
direction is via geostationary satellite & travelling at spped of
light(300,000Km/sec). to consider the transmission delay to transmit
the data.


Draw a sphere.
Draw in the satellite orbit.
Draw in the signal path to a point on the surface of the sphere.
Calculate the distance from the point on the surface, to the satellite,
using trig, or measuring the drawing, and multiply by two, then divide
by the speed.

wrote in message
ups.com...
I am having a scenario as under.
I need to calcluate approx. minimum round trip for comunication where
path used is a satellite link. consider the transmission in both
direction is via geostationary satellite & travelling at spped of
light(300,000Km/sec). to consider the transmission delay to transmit
the data.

There are on-line calculators of satellite az/el/range parameters; a good
one I use is:
http://www.satcom.co.uk/article.asp?article=1

Once you have the range you can calculate delay to the precision required by
using an appropriate value of c.

However you can be lazy and use a more intricate calculator like;
http://www.satellite-calculations.co...e/Downlink.htm

which also calculates link delay. Note though that I'm not sure if it takes
into account the satellite ephemeris and any diurnal variations. Depending
on your application these may not be significant.

If however you want to calculate satellite range from first principles you'd
want to check out a text, such as "Satellite Communications" by Roddy
(Prentice-Hall). The spherical trig required is delved into in more than
adequate depth.

Cheers.

Ken