4g ok | 2g ok | 3g error

Hi,

The company I’m working with use a Sierra Wireless AirPrime HL7692 Cat-1 Cellular module. Via UART, I find I can place into continuous transmit modes (using command at+wmtxpower) for 4G and 2G. But not for 3G. I just get ERROR back. Anyone have an inkling why?

The commands I’ve tried are at+wmtxpower=1,1,9612,0\r for UMTS Band I Ch 9612 0 dBm tx,
and at+wmtxpower=1,2,9262,0\r tfor UMTS Band II Ch 9262 0 dBm tx. Both I’d say are in accordance with
AirPrime_HL76xx_AT_Commands_Interface_Guide_Rev12_1.pdf pages 324-326.

I precede the command with an ATI10\r. The response, is as below, including OK. The ERROR is from the eg at+wmtxpower=1,1,9612,0\r command. I’ve tried also eg at+wmtxpower=1,1,9612,0,0\r but likewise ERROR.

Best regards,

David

+SIM: 1

+KSUP: 0

+PBREADY

Modem-Firmware:
RHL769x.2.23.172400.201706231140.x7120m_1
HL7692
HL769x.2.23
x7120m
FUSED
2017-06-23 11:44:41
r9909

Primary-Boot:
RHL769x.2.23.0202170316.201706231140.x7120m_1
2017-06-23 11:40:00
r8223

Secondary-Boot:
RHL769x.2.23.0202170316.201706231140.x7120m_1
2017-06-23 11:40:00
r8223

Update-Agent:
RHL769x.2.23.0300170317.201706231140.x7120m_1
2017-06-23 11:40:00
r9909

4G-Firmware:
7160.S3.561.41.3.726.02.0000

3G-Firmware:
202.642.640.42-54.35

OK

ERROR

Hi david.king,
HL7692 module does not support 3G (UMTS), so ERROR will be returned in the case you set TX/RX with 3G band.
Please find in page 127-128 AirPrime_HL76xx_AT_Commands_Interface_Guide_Rev12_1.pdf to see which band that HL7692 support ( it supports 2G and 4G).

Thanks,

1 Like