NOVUS RHT-Air - Manual (Page 5)

RHT-Air
NOVUS AUTOMATION 5/8
REGISTER 27 – OPERATION CHANNEL
It indicates the operation channel in which the equipment is operating in the
network. It may vary from 11 to 25, in that every channel is equivalent to one
frequency of operation. The network will always operate on the channel with
less interference among all the 15 possible ones.
CHANNEL OPERATION FREQUENCY
11 2405 MHz
12 2410 MHz
13 2415 MHz
14 2420 MHz
15 2425 MHz
16 2430 MHz
17 2435 MHz
18 2440 MHz
19 2445 MHz
20 2450 MHz
21 2455 MHz
22 2460 MHz
23 2465 MHz
24 2470 MHz
25 2475 MHz
REGISTER 28 – LINK QUALITY INDICATOR
It serves to inform the quality of the reception link of the connection between the equipment and the AirGate-Modbus with which it is matched. This value is obtained by
measuring the power of the last package received. This power is measured in dBm, which is a logarithmic power unit in mW. The LQI may vary from -100 dBm (worst
reception quality) to -15 dBm (best reception quality).
For equipment operating in ideal settings, with no obstacles and no electromagnetic interference, LQI will display a graphic similar to the one below, wherein the
different power levels for the Distance vs. LQI relation are compared.