Relevant information found on page 134 of the receiver description and protocol specification: https://www.u-blox.com/sites/default/files/products/documents/u-blox8-M8_ReceiverDescrProtSpec_(UBX-13003221)_Public.pdf
Turn on GGA message (1 per second)
[0xB5, 0x62, 0x06, 0x01, 0x03, 0x00, 0xF0, 0x00, 0x01, 0xFB, 0x10]
Message Class: 0xF0
Message Identifier: 0x00 (GGA)
Send rate on current Port: 0x01
Turn off GLL message:
[0xB5, 0x62, 0x06, 0x01, 0x03, 0x00, 0xF0, 0x01, 0x00, 0xFB, 0x11]
Message Class: 0xF0
Message Identifier: 0x01 (GGL)
Send rate on current Port: 0x00
The GPS responds with an ACK [0xB5, 0x62, 0x05, 0x01, 0x02, 0x00, 0x06, 0x01, 0x0F, 0x38]
B5 62 06 3E 3C 00 00 00 20 07 00 08 10 00 01 00 01 01 01 01 03 00 00 00 01 01 02 04 08 00 00 00 01 01 03 08 10 00 00 00 01 01 04 00 08 00 00 00 01 01 05 00 03 00 00 00 01 01 06 08 0E 00 00 00 01 01 2C 4D