## org.freedesktop.ModemManager1.Modem.Signal org.freedesktop.ModemManager1.Modem.Signal — The ModemManager Signal interface. |

## Methods

    Setup (IN  u rate);

## Properties

    Rate  readable   u
    Cdma  readable   a{sv}
    Evdo  readable   a{sv}
    Gsm   readable   a{sv}
    Umts  readable   a{sv}
    Lte   readable   a{sv}

## Description

This interface provides access to extended signal quality information.

## Method Details

### The Setup() method

    Setup (IN  u rate);

Setup extended signal quality information retrieval.

`IN u `rate``: | refresh rate to set, in seconds. 0 to disable retrieval.

## Property Details

### The "Rate" property

    Rate  readable   u

Refresh rate for the extended signal quality information updates, in seconds. A value of 0 disables the retrieval of the values.

### The "Cdma" property

    Cdma  readable   a{sv}

Dictionary of available signal information for the CDMA1x access technology.

This dictionary is composed of a string key, with an associated data which contains type-specific information.

`"rssi"` | The CDMA1x RSSI (Received Signal Strength Indication), in dBm, given as a floating point value (signature `"d"`).
`"ecio"` | The CDMA1x Ec/Io, in dBm, given as a floating point value (signature `"d"`).

### The "Evdo" property

    Evdo  readable   a{sv}

Dictionary of available signal information for the CDMA EV-DO access technology.

This dictionary is composed of a string key, with an associated data which contains type-specific information.

`"rssi"` | The CDMA EV-DO RSSI (Received Signal Strength Indication), in dBm, given as a floating point value (signature `"d"`).
`"ecio"` | The CDMA EV-DO Ec/Io, in dBm, given as a floating point value (signature `"d"`).
`"sinr"` | CDMA EV-DO SINR level, in dB, given as a floating point value (signature `"d"`).
`"io"` | The CDMA EV-DO Io, in dBm, given as a floating point value (signature `"d"`).

### The "Gsm" property

    Gsm  readable   a{sv}

Dictionary of available signal information for the GSM/GPRS access technology.

This dictionary is composed of a string key, with an associated data which contains type-specific information.

`"rssi"` | The GSM RSSI (Received Signal Strength Indication), in dBm, given as a floating point value (signature `"d"`).

### The "Umts" property

    Umts  readable   a{sv}

Dictionary of available signal information for the UMTS (WCDMA) access technology.

This dictionary is composed of a string key, with an associated data which contains type-specific information.

`"rssi"` | The UMTS RSSI (Received Signal Strength Indication), in dBm, given as a floating point value (signature `"d"`).
`"ecio"` | The UMTS Ec/Io, in dBm, given as a floating point value (signature `"d"`).

### The "Lte" property

    Lte  readable   a{sv}

Dictionary of available signal information for the UMTS (WCDMA) access technology.

This dictionary is composed of a string key, with an associated data which contains type-specific information.

`"rssi"` | The LTE RSSI (Received Signal Strength Indication), in dBm, given as a floating point value (signature `"d"`).
`"rsrq"` | The LTE RSRQ (Reference Signal Received Quality), in dB, given as a floating point value (signature `"d"`).
`"rsrp"` | The LTE RSRP (Reference Signal Received Power), in dBm, given as a floating point value (signature `"d"`).
`"snr"` | The LTE S/R ratio, in dB, given as a floating point value (signature `"d"`).