iGage
X9x User Manual
page 24 of 53
channels are 1 based, while the base frequencies
may be 0 based. Match the FREQUENCY, not the
channel.
Click the green check mark when you have
matched the base frequency to return to the RTK
tab:
17.
Click on the green check mark to configure the
receiver:
18.
Click on ‘Monitor Skyplot’ to check the status of
the rover:
19.
The status of the receiver will be shown:
20.
IMPORTANT!
Always select the ‘Ref’ tab and store the base
location! A good rule is to store the base position
twice in consecutive point numbers:
21.
Your rover should go to FLOAT and then to FIX.
Once it fixes, you are ready to survey!
Troubleshooting a UHF Base / Rover Pair
1.
Is the base broadcasting? Check the green LED on the base, check the Tx LED on the base radio.
2.
Do the frequencies match on the base and rover?
3.
Does the radio protocol match? “Trimmark 3, 9600 baud” on base and “Trimtalk” on the Rover.
4.
If the Rover reports ‘Float’ then corrections are being received.
5.
If the Rover is FLOAT, but never fixes, the base position could be way different than the actual base location. Or there
could be high multipath or canopy at the base or rover.
6.
Is someone else broadcasting on the same frequency? If so, it will keep your base radio from transmitting.
7.
Make sure the protocol matches on the base and rover “CMR+” or “RTCM3” are best, but must match exactly (Warning,
there is an RTCM2 and RTCM3.) If they are unmatched, you will probably have to cycle the power on the Rover (or use
‘Equip: GPS Utilities: Reset Receiver’ to get the rover to switch to a new base. (This is a feature, not a bug!)