Struct TxPower 

pub struct TxPower {
    pub pa: PaConfig,
    pub setting_dbm: i8,
}

The amplifier configuration and power setting that produce an output power.

Examples

use pamoja_lora::budget::{Decibels, LinkBudget};
use pamoja_radios::sx126x::config::{PaConfig, PowerAmplifier, TxPower};

// A 2.15 dBi whip on half a decibel of pigtail under a 16 dBm EIRP ceiling.
let whip = LinkBudget {
    transmit_antenna_gain_dbi: Decibels::from_hundredths(215),
    transmit_cable_loss_db: Decibels::from_tenths(5),
    ..LinkBudget::default()
};
let power = TxPower::under_ceiling(PowerAmplifier::HighPower, &whip, Decibels::from_db(16));
assert_eq!(power.setting_dbm, 14);
assert_eq!(power.pa, PaConfig::SX1262_22_DBM);

Fields

pa: PaConfig

The SetPaConfig parameters.

setting_dbm: i8

The power byte of SetTxParams, in dBm.

Implementations

impl TxPower

pub const fn for_output(amplifier: PowerAmplifier, output_dbm: i8) -> TxPower

Chooses the settings for an output power.

The high power amplifier keeps its +22 dBm configuration and takes the power in SetTxParams, clamped to -9 to +22 dBm. The low power amplifier uses its +14 dBm configuration with the power clamped to -17 to +14 dBm, and its +15 dBm configuration, which Table 13-21 drives with a setting of +14 dBm, for anything above.

Arguments

• amplifier - the chip’s power amplifier.
• output_dbm - the output power wanted at the antenna port.

Returns

The configuration and the setting.

pub fn under_ceiling( amplifier: PowerAmplifier, budget: &LinkBudget, eirp_ceiling_dbm: Decibels, ) -> TxPower

Chooses the settings that keep a link’s EIRP at or under a ceiling.

Arguments

• amplifier - the chip’s power amplifier.
• budget - the link budget, whose transmitting antenna and cable apply.
• eirp_ceiling_dbm - the EIRP limit, such as a channel plan’s ceiling for the frequency in use.

Returns

The configuration and the setting, rounded down to whole decibels so the EIRP stays under the ceiling.

Trait Implementations

impl Clone for TxPower

fn clone(&self) -> TxPower

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for TxPower

impl Debug for TxPower

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Eq for TxPower

impl Hash for TxPower

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for TxPower

fn eq(&self, other: &TxPower) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for TxPower