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