ARF868 Radio Modems - User guide version V1.8.1
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It should be noted that programming register S217 to 0 (no timeout) means that the S218 register threshold must be reached to start transmis-
sion.
Below example of S217 & S218 register usage :
5.4. Configuration coherency
The ARF868 modem contains monitoring of the configuration coherency and prevents saving and operation of invalid parameters.
Radio parameter coherency
Radio power, radio data rate and frequency parameters should correspond to valid combinations presented in the table below (cf Appendices)
and in more detail in the document entitled: “ARF868 Modem channels list” available on the Adeunis RF website.
Protocol parameter coherency
The following parameters should be set according to the combinations shown in the table below:
Register
Legacy X3-PRO Mode
Continuous Asynchronous Protocol
S222
4
3
S254
11 ; 12
1 ; 3 ; 6 ; 8
S204
0 or ajustable on demand
0
All other combinations of these registers except those described in the table above are invalid.
Invalid combinations result in the return of a “W” on the AT&W and ATO commands which are not executed in this case.
6. Appendices annexes
A complete list of the usable channels is available on our website: “ARF868 & NB868 Channels list”
Power 500mW (27dBm) - 869.4 - 869.650MHz (maximum authorised powers given in dBm in the table below)
Note
: in the event of use of several products close to each other and with an RF data rate of 2.4kbps Adeunis RF suggests only using even
(526, 528...) or odd channels (525, 527...)
Channel
Frequency
2,4kbps
9,6kbps
38,4kbps
57,6kbps
525
869,4125
27
526
869,425
27
20
527
869,4375
27
528
869,45
27
23
23
529
869,4625
27
530
869,475
27
23
23
23
531
869,4875
27
532
869,5
27
25
25
533
869,5125
27
534
869,525
27
27
27
27
535
869,5375
27
536
869,55
27
25
25
537
869,5625
27
538
869,575
27
23
23
23
539
869,5875
27
540
869,6
27
23
23
541
869,6125
27
542
869,625
27
20
543
869,6375
27
Power 25mW (14dBm) at 2.4kbps