ashtech HDS800, Reference Manual

Page: 635 / 678

619
Troubleshooting
2. If there is jamming :
• Lower the sensitivity of the rover radio. FAST Survey
lets you change the sensitivity of the rover radio, and
you can also lower the sensitivity of the PDL radio via
the front panel display.
Lower the sensitivity of the rover to medium or low. If
the traffic on your frequency is not strong in power,
lowering the sensitivity of the rover radio may cause
the radio to ignore the traffic. This will not help if the
traffic is caused by a nearby or very high powered
radio.
The disadvantage of lowering the sensitivity is a
reduction in the range of your radio system. A lower
sensitivity at the rover may cause the rover to not hear
the base transmissions as the rover moves farther away
from the base.
• Try another frequency. If you are licensed to operate on
more than one frequency, move to a different
frequency in hopes that the new frequency has less
traffic.
If you have a license for only one frequency, you may
need to find another frequency in your area that is
clear of traffic in order for the system to function
reliably and acquire a license for this frequency if
possible.
Data Link Okay but No Fixed Position Computed
Once the receiver is set to function in RTK (i.e. RTK firmware
option has been enabled), it will compute RTK quality
positions. In order to accomplish this, the rover must collect
raw satellite data at its position and also receive RTK
correction data transmitted by the base. Without these two
components, the rover will not be able to fix RTK position
solutions.
RTK Base RTK Rover PP Base PP Rover
Relevant to •