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

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 Page 16 of 32