versions_comparison
Differences
This shows you the differences between two versions of the page.
| Both sides previous revisionPrevious revisionNext revision | Previous revision | ||
| versions_comparison [2026/08/31 09:04] – pkovar | versions_comparison [2026/08/31 09:14] (current) – pkovar | ||
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| **Ideal Conditions** [(The antenna is pointed towards the zenith; the satellite is attitude-controlled and stable, with a perfect view of the sky.)] | **Ideal Conditions** [(The antenna is pointed towards the zenith; the satellite is attitude-controlled and stable, with a perfect view of the sky.)] | ||
| - | <columns 100% l 50%- -> | + | <columns 100% l 50% 50% -> |
| **pNav** could start takes app. 60 seconds. and is app. 10% faster than pNav2. | **pNav** could start takes app. 60 seconds. and is app. 10% faster than pNav2. | ||
| Line 17: | Line 17: | ||
| **Real Conditions**[(At least one condition of Ideal Conditions is not satisfied.)] | **Real Conditions**[(At least one condition of Ideal Conditions is not satisfied.)] | ||
| - | <columns 100% l 50% - -> | + | <columns 100% l 50% 50% -> |
| **pNav** cold start is problematic and can take up to hours. Acquisition is not guaranteed. | **pNav** cold start is problematic and can take up to hours. Acquisition is not guaranteed. | ||
| Line 33: | Line 33: | ||
| Same problem as Real Conditions Acquisition. | Same problem as Real Conditions Acquisition. | ||
| - | <columns 100% l 50%- -> | + | <columns 100% l 50% 50% -> |
| pNav is very slow. Reacquisition is not guaranteed. | pNav is very slow. Reacquisition is not guaranteed. | ||
| Line 47: | Line 47: | ||
| < | < | ||
| - | The tracking loops of pNav2 were optimized to track weak signals; see the " | + | The tracking loops of **pNav2** were optimized to track weak signals; see the " |
| + | </ | ||
| + | |||
| + | ===== Antenna ===== | ||
| + | |||
| + | <columns 100% l 50% 50% -> | ||
| + | |||
| + | 3.3V feeding. No feeding current limiter. | ||
| + | |||
| + | < | ||
| + | |||
| + | 2.85V feeding. Feeding current limiter. | ||
| + | Power supply 2.85 V. Supply current limiter. For optimal noise and intermodulation suppression, | ||
| </ | </ | ||
versions_comparison.1788159885.txt.gz · Last modified: by pkovar
