For example it can be the GPS central frequency for L1 = 1575.45 MHz, or L2 = 1227.60 MHz, - * L5 = 1176.45 MHz, varying GLO channels, etc. If the field is not set, it is the primary - * common use central frequency, e.g. L1 = 1575.45 MHz for GPS. - * - *
For an L1, L5 receiver tracking a satellite on L1 and L5 at the same time, two raw - * measurement objects will be reported for this same satellite, in one of the measurement - * objects, all the values related to L1 will be filled, and in the other all of the values - * related to L5 will be filled. + * L5 = 1176.45 MHz, varying GLO channels, etc. * *
The value is only available if {@link #hasCarrierFrequencyHz()} is {@code true}. * @@ -1382,7 +1376,8 @@ public final class GnssMeasurement implements Parcelable { *
AGC acts as a variable gain amplifier adjusting the power of the incoming signal. The AGC * level may be used to indicate potential interference. Higher gain (and/or lower input power) * shall be output as a positive number. Hence in cases of strong jamming, in the band of this - * signal, this value will go more negative. + * signal, this value will go more negative. This value must be consistent given the same level + * of the incoming signal power. * *
Note: Different hardware designs (e.g. antenna, pre-amplification, or other RF HW * components) may also affect the typical output of of this value on any given hardware design diff --git a/location/java/android/location/GnssStatus.java b/location/java/android/location/GnssStatus.java index b46e8ce2f605c..23390fce1a5f8 100644 --- a/location/java/android/location/GnssStatus.java +++ b/location/java/android/location/GnssStatus.java @@ -284,12 +284,7 @@ public final class GnssStatus implements Parcelable { * Gets the carrier frequency of the signal tracked. * *
For example it can be the GPS central frequency for L1 = 1575.45 MHz, or L2 = 1227.60 - * MHz, L5 = 1176.45 MHz, varying GLO channels, etc. If the field is not set, it is the primary - * common use central frequency, e.g. L1 = 1575.45 MHz for GPS. - * - * For an L1, L5 receiver tracking a satellite on L1 and L5 at the same time, two measurements - * will be reported for this same satellite, in one all the values related to L1 will be - * filled, and in the other all of the values related to L5 will be filled. + * MHz, L5 = 1176.45 MHz, varying GLO channels, etc. * *
The value is only available if {@link #hasCarrierFrequencyHz(int satelliteIndex)} is * {@code true}.