DAVIS Wireless Repeaters for VP2 Manual de usuario descargar pdf (Pagina 8)

25 - 8 Rev A 7/28/06

multiple receiving locations. If you need multiple chains in your repeater network and want to

use less than 8 repeaters, you can configure a repeater that is not A to behave like Repeater A

–that is, it will not try to acquire a previous repeater ID in the chain. For example, if Repeater C

has the First in Chain jumper set, then it will not try to acquire Repeater B, only the transmitter

ID DIP switches that are set.

An example with two chains (two weather stations and one receiver) is shown below.

It is best to utilize no more than 8 repeaters in a network, however, if the chains are spaced

apart enough, you can utilize up to 8 repeaters on any chain. This can also be aided by having

major obstructions between repeaters where you don’t want one to hear the other. You can

only have up to 8 chains because you can only have 8 weather stations in a network. The

maximum theoretical number of repeaters you can have is 64 (8 repeater IDs x 8 chains).

DETERMINING YOUR ENVIRONMENT

First, you must assess how far you want to transmit your data. As we all know, the shortest

distance between two points is a straight line. If the shortest distance between your transmit

and receive locations does not contain any solid obstructions such as hills, large buildings or

large thickets of vegetation, you can use this distance to determine your needs. If not, then you

will need to attempt to go over or around these obstructions. This scenario is covered in the

section “Overcoming Major Obstructions”. Note that any case involving obstructions will require

the use of at least one repeater. A map or measuring device (tape measures, string, range

finders, handheld GPS receiver, etc.) will help you determine distances. Use a topographic map

to help you determine whether or not you have any significant obstructions or elevation

changes. Free topographic maps can be found at the following site: http://www.topozone.com

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DAVIS Wireless Repeaters for VP2 Manual de usuario Pagina 8