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.

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Adcom A720, A723 manual Freq 433925000 25000, Rssi