CHAPTER 4
Using terminal commands
31
COMMAND | FREQ |
| CAUTION Do not change the frequency of your device without |
| reason. Apart from the fact that it may not communicate with the |
| network anymore, you may also violate the applicable radio- |
| communications laws in your country. Depending on the |
| destination country, some models may also return an error |
| message when trying to use this command. |
APPLIES TO | A720, A720B, A723 |
DESCRIPTION | Sets/returns the operating frequency. |
PARAMETERS | The operating frequency and step (Hz), or none in the GET version. |
RETURNS | The actual frequency and step, in Hz. |
REMARKS | GET/SET. |
REMOTE | Yes, SET only. |
EXAMPLE | FREQ 433925000 25000 |
| 193 FREQ 0 |
| # |
| FREQ |
| 193 FREQ 433925000 25000 0 |
| # |
COMMAND | RSSI |
APPLIES TO | A720, A720B, A723 |
DESCRIPTION | Sets/returns the Relative Signal Strength Indicator threshold at |
| which an RF receiver must wake up. |
PARAMETERS | The threshold value. For the A720 family, it can take values from 0 |
| to 255; it is typically factory set to 58. For the A723, it typically fac- |
| tory set to 42. |
RETURNS | The instant RSSI value and the programmed threshold. |
REMARKS | The factory default is set to 58 units. The RSSI threshold is used to |
| detect if any radio activity is on the channel. The value set must be |
| approximately 30% higher than the actual measured value when |
| no signal is present on the channel. To measure the actual value, |
| use the command RSSI with no variables or parameters. |
