Step 6. Is Line-Of-Sight Between Base And Rover Antennae Obstructed; Step 7. Are You Within Range Specifications Of Your Radio System - ashtech Z-Xtreme System Manual

radios are set.
Radio not set to same frequency as base
Use the field application software to set the frequency of the rover radio.
Radio set to same frequency as base
Go to step 6 below.

Step 6. Is line-of-sight between base and rover antennae obstructed?

Obstructions (trees, buildings, hills, etc.) in the line-of-sight between the base and
rover radio antennae will reduce the range of the radio system. Spread-spectrum
radios cannot withstand a great deal of obstruction. UHF/VHF radios are more resil-
ient to obstructions but an excessive amount can block out the signal.
Line of sight not obstructed
Go to step 7 below.
Line of sight obstructed
1. Move to a less obstructed location. In order to test if the system is functioning
properly, move to a location which does not have an obstructed view
between the base and rover radio antennae.
2. If this is not possible, move to higher ground or a location where there is less
obstruction.
3. If, after moving, the rover radio begins to receive data from the base, then the
previous location is too obstructed from the base. You will need to either
raise the base radio antenna higher, or move the base to a location with less
obstruction between the base and rover radio antennae.
Go to step 7 below if the problem is not yet resolved.

Step 7. Are you within range specifications of your radio system?

The range within which your radio system will function varies greatly with the condi-
tions under which the system is being used. With clear line-of-sight between the base
and rover radio antennae, and no interference on the frequencies you are working on,
a spread-spectrum radio can function with miles of separation between the base and
rover, and a UHF/VHF system can function with tens of miles of separation. Unfortu-
nately, these are ideal situations seldom found. In most situations, the range of the
spread-spectrum radio will be limited to 1-2 miles and the UHF/VHF to under 5 miles.
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