Jenn-Air 1300, 1892 manual Errorcrlf, Rssi Level Level at RF Input dBm ±2dB

Models: 1300 1892

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The centre radio frequency of the modem is set as follows:

 

AT S155=nnn.nnnnnn<CR><LF>

Where:

nnn.nnnnnn is the format of the input string for the

 

frequency in MHz

Default:

current centre frequency.

Read:

AT S155?<CR><LF>

Read Return:

nnn.nnnnnn<CR><LF>

Example:

AT S155=458.5<CR><LF> sets 458.5MHz

 

AT S155=458.500000<CR><LF> sets 458.5MHz

Note that frequencies in multiples of either 12.5kHz or 10kHz only are acceptable. If a whole number of MHz is entered a “.” must be entered before the <CR><LF>.

If the wrong centre frequency is entered the modem will respond with the following error message and the entry will be ignored:

ERROR<CR><LF>

4.10Received Signal Strength Indication (RSSI) (AT S156)

This request to the modem gives a response of nn <CR><LF>, where the nn is the value of the Received Signal Strength of the radio carrier present at the antenna at that time. The returned value of RSSI is in the range of 1 to 10.

The level of RF level of each value is given in the following table:

 

 

 

 

RSSI Level

Level at RF Input ( dBm ±2dB)

 

01

-114

to -120

 

 

 

 

 

02

-108

to -114

 

 

 

 

 

03

-102

to -108

 

 

 

 

04

-96 to -102

 

 

 

 

 

05

-90

to -96

 

 

 

 

 

06

-84

to -90

 

 

 

 

 

07

-78

to -84

 

 

 

 

 

08

-72

to -78

 

 

 

 

 

09

-66

to -72

 

 

 

 

10

> -66

 

 

 

 

XX

Not available

 

 

 

 

 

Table 4 RSSI Levels

Hermes Operator Note

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Jenn-Air 1300, 1892 manual Errorcrlf, Rssi Level Level at RF Input dBm ±2dB