Differences

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--- versions_comparison [2026/08/31 08:25] – pkovar
+++ versions_comparison [2026/08/31 09:14] (current) – pkovar
@@ Line 5: / Line 5: @@
 **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% - ->
+<columns 100% l 50% 50% ->
-pNav coldstart 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.
 <newcolumn>
-----
+**pNav2** is app. 10% slower than pNav. Cold start s takes app. 70 seconds.
-<figure>
-{{0:pnav2_photo_small.jpeg?350|cuddle tanks}}
-<caption>pNav2 Photo</caption>
-</figure>
 </columns>
@@ Line 23: / Line 17: @@
 **Real Conditions**[(At least one condition of Ideal Conditions is not satisfied.)]
-A cold start of pNav is problematic and can take up to hours.
+<columns 100% l 50% 50% ->
-A cold start of pNav2 is reliable and takes at most a couple of minutes; see the Navigation of Rotating Satellite in the datasheet.
+**pNav** cold start is problematic and can take up to hours. Acquisition is not guaranteed.
+<newcolumn>
+**pNav2** cold start is reliable and takes at most a couple of minutes; see the Navigation of Rotating Satellite in the datasheet.
+</columns>
 ===== Reaqusition =====
@@ Line 34: / Line 31: @@
 **No position fix**
-Same problem as Real Conditions Acquisition. pNav2 has no problem, while pNav is terribly slow, and reacquisition is not guaranteed.
+Same problem as Real Conditions Acquisition.
+<columns 100% l 50% 50% ->
+pNav is very slow. Reacquisition is not guaranteed.
+<newcolumn>
+**pNav2** reacquisition is reliable and takes at most a couple of minutes; see the "Navigation of Rotating Satellite" in the datasheet.
+</columns>
 ===== Tracking Sensitivity =====
-pNav can track only open sky satellites.
+<columns 100% l 50% 50% ->
-The tracking loops of pNav2 were optimized to track weak signals; see the Navigation of Rotating Satellite in the datasheet.
+**pNav** can track only open sky satellites.
+<newcolumn>
+The tracking loops of **pNav2** were optimized to track weak signals; see the "Navigation of Rotating Satellite" in the datasheet.
+</columns>
+===== Antenna =====
+<columns 100% l 50% 50% ->
+.3V feeding. No feeding current limiter.
+<newcolumn>
+.85V feeding. Feeding current limiter.
+Power supply 2.85 V. Supply current limiter. For optimal noise and intermodulation suppression, we recommend an active antenna with a wide beam and LNA gain of maximum 10 dB.
+</columns>