Using the MINTER
P/N 7010-0681
4-9
calculated from the colors of other LED blinks, and will be one of the
following colors when the tests complete:
• Orange – at least one blink is orange.
• Red – no orange blink and at least one red blink.
• Green – all other cases.
The delimiter double-blink is followed by six LED blinks
corresponding to six receiver tests, where each blink indicates the
following information:
Blink 1. Sufficient data for position computation.
Blink 2. GPS S/N ratios are good (Table 4-2 on page 4-9).
Blink 3. GLONASS S/N ratios are good (Table 4-2 on page 4-9).
Blink 4. Oscillator’s frequency offset is less than three ppm.
Blink 5. Oscillator's Allan Variance is better than 2.7e-10.
Blink 6. Continuous tracking time is more than 15 minutes.
The color of the blink indicates that information for test is unavailable
(orange), the receiver passed the test (green), or the receiver failed the
test (red).
1. To switch to EIM, press and quickly release (within one second)
the FN key on the MINTER.
2. Watch for the delimiter double-blink. With good receiver,
antenna, and observation conditions, all blinks should be green
within 15 minutes of powering on.
• Green – ok
• Orange – wait
• Red – some tests failed
3. To switch back to normal mode, press the FN key.
Table 4-2. Signal-to-Noise (S/N) “Good” Ratios
CA/L1 P/L1 P/L2
GPS513939
GLONASS 51 49 40
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