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Radiometrix Ltd
TR2M Data Sheet
page 6
TR2M serial configuration commands
2400 baud RS232. 8 bit data, no parity, 1 start bit, 1 or 2 stop bits, No flow control
SINGLE
nnnnn
Set value of N for single channel operation
GOCHAN xx
Serial select of channel xx (0 to 127)
LOADMX xx
Set highest permitted (serial selected) channel xx (others default to ch0)
LOAD aa nnnnn
Set value of N for channel aa (channels 0 to 15)
LOADTB nnnnn
Set value of N for channel 16 (channels 17 to 127 then in sequence)
RVALUE rrrr
Enter value for R register
SETPAR
Channel selected by 3 bit parallel input (0 to 7). Disable modem
SETSER
Channel selected by most recent 'gochan' operation
SETMOD
Enable internal modem. Frequency selected by most recent 'gochan' or
'single'
GOTEST
250Hz test tone transmission
<cr>
Process entry
/
Clear all buffers
xx = channel number from 00 to 127
aa = two digit channel number from 00 to 15
nnnnn = synthesizer N register value, (up to 65535)
rrrr = synthesizer R register value, (up to 16383)
17322
25
050
.
433
=
=
=
kHz
MHz
f
f
N
cing
Channelspa
RF
TX
kHz
MHz
f
f
R
cing
channelspa
TCXO
25
13
=
=
, So R=520
Channel
Number
433MHz band
N value for TX
458MHz band
N value for TX
0
433.050
/LOAD00 17322
458.525
/LOAD00 18341
1
433.075
/LOAD01 17323
458.550
/LOAD01 18342
2
433.100
/LOAD02 17324
458.575
/LOAD02 18343
3
433.125
/LOAD03 17325
458.600
/LOAD03 18344
4
433.150
/LOAD04 17326
458.625
/LOAD04 18345
5
433.175
/LOAD05 17327
458.650
/LOAD05 18346
6
433.200
/LOAD06 17328
458.675
/LOAD06 18347
7
433.225
/LOAD07 17329
458.700
/LOAD07 18348
8
433.250
/LOAD08 17330
458.725
/LOAD08 18349
9
433.275
/LOAD09 17331
458.750
/LOAD09 18350
10
433.300
/LOAD10 17332
458.775
/LOAD10 18351
11
433.325
/LOAD11 17333
458.800
/LOAD11 18352
12
433.350
/LOAD12 17334
458.825
/LOAD12 18353
13
433.375
/LOAD13 17335
458.850
/LOAD13 18354
14
433.400
/LOAD14 17336
458.875
/LOAD14 18355
15
433.425
/LOAD15 17337
458.900
/LOAD15 18356
16
433.450
/LOADTB 17338
458.925
/LOADTB 18357
F max
434.775
/LOADMX 69
459.100
/LOADMX 23
433MHz Band
458MHz
Band
25kHz
433.05
434.79
459.1
461.675
Figure 6: Maximum regulatory and user accessible sequential channels
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