6.17 Bluetooth Troubleshooting Waveforms; Table 6-2. Bluetooth Command To Tx - Motorola APX 5000 Service Manual

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6.17 Bluetooth Troubleshooting Waveforms

A Bluetooth radiated or conducted signal at 2.402 GHz and a LF radiated signal at 125 kHz can be
used to verify the receiver and transmitter on the radio are operational. Using an
APX 5000/APX 6000/APX 6000XE/SRX2200 debug fixture, the BT/LF signals can be verified. A
spectrum analyzer (such as an Aeroflex 3920 Digital Radio Test Set) can be connected to the debug
fixture to verify the presence of such signals. A signal generator can be connected to the debug
fixture to test the APX 5000/APX 6000/APX 6000XE/SRX2200 BT/LF receivers. Radiated Bluetooth
TX/RX testing should be performed before conducted testing is performed in the fixture since the
radio does not have to be opened for radiated testing. To test the presence of a radiated Bluetooth
TX signal, an external Bluetooth antenna should be connected to the input of the sprectrum analyzer.
To test the presence of a radiated Bluetooth RX signal, an external Bluetooth antenna should be
connected to the output of a signal generator set to TX CW 2.402 Ghz. The speaker grille of the
radio should be brought near the antenna during testing. The following is the procedure to activate
the Bluetooth/LF transmitter or receiver using RCMP commands:
To send an RCMP command, connect a RS-232 com port GCAI cable between the radio and PC.
Start HyperTerminal on com 1 (typical RS-232 port) using these settings: 9600 baud, 8-bit,
non-parity, stop bit = 1, HW flow control. Type, "AT#DEBUG", then type "rcmpraw:000c".
Bluetooth Command to TX 2.402 GHz CW
Connect a spectrum analyzer to the Bluetooth port of the test fixture with a 6 dB attenuator in-line.
Set the spectrum analyzer to 2.402 GHz center, 10 MHz span, RBW of 300 kHz, a VBW of 1 MHz,
and a sweep time of 2.5 ms. There are two commands to verify a spectrum analyzer can read a
2.402 GHz wave from the radio BT transmitter. Enter the rcmpraw:00390207 command first, then
enter rcmpraw:0039020100000F0006 (on SR 7.9 SW, use this command:
rcmpraw:0039020100000F, but be aware that the TX signal may time out in less than 10 minutes).
Bluetooth TX at 2.402 GHz
CW Modulation
Successful Example Entry:
Type:rcmpraw:000c
Response:800c00
Type:rcmpraw:00390207
Response:8039000207
Type:rcmpraw:0039020100000F0006
Response:8039000201

Table 6-2. Bluetooth Command to TX

TEST
rcmpraw: 00390207
rcmpraw: 0039020100000F0006
Troubleshooting Waveforms: Bluetooth Troubleshooting Waveforms
RCMPRAW CMD RESPONSE
Success: 8039000207
Failure: 8039010207
Success: 8039000201
Failure: 8039010201