Added in [API level 33](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels) Summary: [Nested Classes](https://developer.android.com/reference/android/location/GnssAutomaticGainControl#nestedclasses) \| [Inherited Constants](https://developer.android.com/reference/android/location/GnssAutomaticGainControl#inhconstants) \| [Fields](https://developer.android.com/reference/android/location/GnssAutomaticGainControl#lfields) \| [Methods](https://developer.android.com/reference/android/location/GnssAutomaticGainControl#pubmethods) \| [Inherited Methods](https://developer.android.com/reference/android/location/GnssAutomaticGainControl#inhmethods)

# GnssAutomaticGainControl

*** ** * ** ***

` public final class GnssAutomaticGainControl `   
` extends https://developer.android.com/reference/java/lang/Object ` ` implements https://developer.android.com/reference/android/os/Parcelable `

|---|---|
| [java.lang.Object](https://developer.android.com/reference/java/lang/Object) ||
| ↳ | android.location.GnssAutomaticGainControl |

<br />

*** ** * ** ***

A class that contains GNSS Automatic Gain Control (AGC) information.

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. 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 this value on any given hardware design in an open sky test - the important aspect of this output is that changes in this value are indicative of changes on input signal power in the frequency band for this measurement.

## Summary

| ### Nested classes ||
|---|---|
| ` class` | `https://developer.android.com/reference/android/location/GnssAutomaticGainControl.Builder` Builder for `https://developer.android.com/reference/android/location/GnssAutomaticGainControl` |

### Inherited constants

From interface `https://developer.android.com/reference/android/os/Parcelable` `int` `https://developer.android.com/reference/android/os/Parcelable#CONTENTS_FILE_DESCRIPTOR`

Descriptor bit used with `https://developer.android.com/reference/android/os/Parcelable#describeContents()`: indicates that the Parcelable object's flattened representation includes a file descriptor.
`int` `https://developer.android.com/reference/android/os/Parcelable#PARCELABLE_WRITE_RETURN_VALUE`

Flag for use with `https://developer.android.com/reference/android/os/Parcelable#writeToParcel(android.os.Parcel,%20int)`: the object being written is a return value, that is the result of a function such as "`Parcelable someFunction()`", "`void someFunction(out Parcelable)`", or "`void someFunction(inout Parcelable)`".

| ### Fields ||
|---|---|
| ` public static final https://developer.android.com/reference/android/os/Parcelable.Creator<https://developer.android.com/reference/android/location/GnssAutomaticGainControl>` | `https://developer.android.com/reference/android/location/GnssAutomaticGainControl#CREATOR` <br /> |

| ### Public methods ||
|---|---|
| ` int` | ` https://developer.android.com/reference/android/location/GnssAutomaticGainControl#describeContents()() ` Describe the kinds of special objects contained in this Parcelable instance's marshaled representation. |
| ` boolean` | ` https://developer.android.com/reference/android/location/GnssAutomaticGainControl#equals(java.lang.Object)(https://developer.android.com/reference/java/lang/Object obj) ` Indicates whether some other object is "equal to" this one. |
| ` long` | ` https://developer.android.com/reference/android/location/GnssAutomaticGainControl#getCarrierFrequencyHz()() ` Gets the carrier frequency of the tracked signal. |
| ` int` | ` https://developer.android.com/reference/android/location/GnssAutomaticGainControl#getConstellationType()() ` Gets the constellation type. |
| ` double` | ` https://developer.android.com/reference/android/location/GnssAutomaticGainControl#getLevelDb()() ` Gets the Automatic Gain Control level in dB. |
| ` int` | ` https://developer.android.com/reference/android/location/GnssAutomaticGainControl#hashCode()() ` Returns a hash code value for the object. |
| ` https://developer.android.com/reference/java/lang/String` | ` https://developer.android.com/reference/android/location/GnssAutomaticGainControl#toString()() ` Returns a string representation of the object. |
| ` void` | ` https://developer.android.com/reference/android/location/GnssAutomaticGainControl#writeToParcel(android.os.Parcel,%20int)(https://developer.android.com/reference/android/os/Parcel parcel, int flag) ` Flatten this object in to a Parcel. |

### Inherited methods

From class ` https://developer.android.com/reference/java/lang/Object ` ` https://developer.android.com/reference/java/lang/Object` ` https://developer.android.com/reference/java/lang/Object#clone()() `

Creates and returns a copy of this object.
` boolean` ` https://developer.android.com/reference/java/lang/Object#equals(java.lang.Object)(https://developer.android.com/reference/java/lang/Object obj) `

Indicates whether some other object is "equal to" this one.
` void` ` https://developer.android.com/reference/java/lang/Object#finalize()() `

Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.
` final https://developer.android.com/reference/java/lang/Class<?>` ` https://developer.android.com/reference/java/lang/Object#getClass()() `

Returns the runtime class of this `Object`.
` int` ` https://developer.android.com/reference/java/lang/Object#hashCode()() `

Returns a hash code value for the object.
` final void` ` https://developer.android.com/reference/java/lang/Object#notify()() `

Wakes up a single thread that is waiting on this object's monitor.
` final void` ` https://developer.android.com/reference/java/lang/Object#notifyAll()() `

Wakes up all threads that are waiting on this object's monitor.
` https://developer.android.com/reference/java/lang/String` ` https://developer.android.com/reference/java/lang/Object#toString()() `

Returns a string representation of the object.
` final void` ` https://developer.android.com/reference/java/lang/Object#wait(long,%20int)(long timeoutMillis, int nanos) `

Causes the current thread to wait until it is awakened, typically by being *notified* or *interrupted*, or until a certain amount of real time has elapsed.
` final void` ` https://developer.android.com/reference/java/lang/Object#wait(long)(long timeoutMillis) `

Causes the current thread to wait until it is awakened, typically by being *notified* or *interrupted*, or until a certain amount of real time has elapsed.
` final void` ` https://developer.android.com/reference/java/lang/Object#wait()() `

Causes the current thread to wait until it is awakened, typically by being *notified* or *interrupted*.
From interface ` https://developer.android.com/reference/android/os/Parcelable ` ` abstract int` ` https://developer.android.com/reference/android/os/Parcelable#describeContents()() `

Describe the kinds of special objects contained in this Parcelable instance's marshaled representation.
` abstract void` ` https://developer.android.com/reference/android/os/Parcelable#writeToParcel(android.os.Parcel,%20int)(https://developer.android.com/reference/android/os/Parcel dest, int flags) `

Flatten this object in to a Parcel.

## Fields

### CREATOR

Added in [API level 33](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public static final Creator<GnssAutomaticGainControl> CREATOR
```

<br />

<br />

## Public methods

### describeContents

Added in [API level 33](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public int describeContents ()
```

Describe the kinds of special objects contained in this Parcelable instance's marshaled representation. For example, if the object will include a file descriptor in the output of `https://developer.android.com/reference/android/os/Parcelable#writeToParcel(android.os.Parcel,%20int)`, the return value of this method must include the `https://developer.android.com/reference/android/os/Parcelable#CONTENTS_FILE_DESCRIPTOR` bit.

<br />

| Returns ||
|---|---|
| `int` | a bitmask indicating the set of special object types marshaled by this Parcelable object instance. Value is either `0` or - `https://developer.android.com/reference/android/os/Parcelable#CONTENTS_FILE_DESCRIPTOR` |

### equals

Added in [API level 33](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public boolean equals (Object obj)
```

Indicates whether some other object is "equal to" this one.

The `equals` method implements an equivalence relation on non-null object references:

- It is *reflexive*: for any non-null reference value `x`, `x.equals(x)` should return `true`.
- It is *symmetric*: for any non-null reference values `x` and `y`, `x.equals(y)` should return `true` if and only if `y.equals(x)` returns `true`.
- It is *transitive*: for any non-null reference values `x`, `y`, and `z`, if `x.equals(y)` returns `true` and `y.equals(z)` returns `true`, then `x.equals(z)` should return `true`.
- It is *consistent*: for any non-null reference values `x` and `y`, multiple invocations of `x.equals(y)` consistently return `true` or consistently return `false`, provided no information used in `equals` comparisons on the objects is modified.
- For any non-null reference value `x`, `x.equals(null)` should return `false`.

An equivalence relation partitions the elements it operates on into *equivalence classes*; all the members of an equivalence class are equal to each other. Members of an equivalence class are substitutable for each other, at least for some purposes.

<br />

| Parameters ||
|---|---|
| `obj` | `Object`: the reference object with which to compare. <br /> |

| Returns ||
|---|---|
| `boolean` | `true` if this object is the same as the obj argument; `false` otherwise. <br /> |

### getCarrierFrequencyHz

Added in [API level 33](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public long getCarrierFrequencyHz ()
```

Gets the carrier frequency of the tracked signal.

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.

<br />

| Returns ||
|---|---|
| `long` | the carrier frequency of the signal tracked in Hz. Value is 0 or greater <br /> |

### getConstellationType

Added in [API level 33](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public int getConstellationType ()
```

Gets the constellation type.

The return value is one of those constants with `CONSTELLATION_` prefix in `https://developer.android.com/reference/android/location/GnssStatus`.

<br />

| Returns ||
|---|---|
| `int` | Value is one of the following: - `https://developer.android.com/reference/android/location/GnssStatus#CONSTELLATION_UNKNOWN` - `https://developer.android.com/reference/android/location/GnssStatus#CONSTELLATION_GPS` - `https://developer.android.com/reference/android/location/GnssStatus#CONSTELLATION_SBAS` - `https://developer.android.com/reference/android/location/GnssStatus#CONSTELLATION_GLONASS` - `https://developer.android.com/reference/android/location/GnssStatus#CONSTELLATION_QZSS` - `https://developer.android.com/reference/android/location/GnssStatus#CONSTELLATION_BEIDOU` - `https://developer.android.com/reference/android/location/GnssStatus#CONSTELLATION_GALILEO` - `https://developer.android.com/reference/android/location/GnssStatus#CONSTELLATION_IRNSS` |

### getLevelDb

Added in [API level 33](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public double getLevelDb ()
```

Gets the Automatic Gain Control level in dB.

<br />

| Returns ||
|---|---|
| `double` | Value is between -10000.0f and 10000.0f inclusive <br /> |

### hashCode

Added in [API level 33](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public int hashCode ()
```

Returns a hash code value for the object. This method is supported for the benefit of hash tables such as those provided by `https://developer.android.com/reference/java/util/HashMap`.

The general contract of `hashCode` is:

- Whenever it is invoked on the same object more than once during an execution of a Java application, the `hashCode` method must consistently return the same integer, provided no information used in `equals` comparisons on the object is modified. This integer need not remain consistent from one execution of an application to another execution of the same application.
- If two objects are equal according to the `https://developer.android.com/reference/java/lang/Object#equals(java.lang.Object)` method, then calling the `hashCode` method on each of the two objects must produce the same integer result.
- It is *not* required that if two objects are unequal according to the `https://developer.android.com/reference/java/lang/Object#equals(java.lang.Object)` method, then calling the `hashCode` method on each of the two objects must produce distinct integer results. However, the programmer should be aware that producing distinct integer results for unequal objects may improve the performance of hash tables.

<br />

<br />

| Returns ||
|---|---|
| `int` | a hash code value for this object. <br /> |

### toString

Added in [API level 33](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public String toString ()
```

Returns a string representation of the object.

<br />

| Returns ||
|---|---|
| `https://developer.android.com/reference/java/lang/String` | This value cannot be `null`. <br /> |

### writeToParcel

Added in [API level 33](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public void writeToParcel (Parcel parcel, 
                int flag)
```

Flatten this object in to a Parcel.

<br />

| Parameters ||
|---|---|
| `parcel` | `Parcel`: This value cannot be `null`. <br /> |
| `flag` | `int`: Additional flags about how the object should be written. May be 0 or `https://developer.android.com/reference/android/os/Parcelable#PARCELABLE_WRITE_RETURN_VALUE`. Value is either `0` or a combination of the following: - `https://developer.android.com/reference/android/os/Parcelable#PARCELABLE_WRITE_RETURN_VALUE` |