Firmware Revision Log

The following changes list the main features of the of the RV-M7 firmware that were changed, modified or added.  


   Version C2

  • Added PASSWORD command to set a password for the user interface.

  • Changed REPEAT 1 command. REPEAT 1 will force the unit to repeat all over the air data.

  • Made trigger bits latching. Any bit designated as a TRIGBIT will latch its trigger state untill it reports it over the air.

  • TDMAslot resolution is now 10mS instead of 50mS.

  • If TXRATE=0 and IDLERATE=0, the unit will not report GPS position. Use this to turn of GPS position reporting.

  • FREEWHEEL command works more reliably.  Previouse versios freewheeled longer than expected.


Version B31

  • Fixed WPL message.  Leading zeros after the decimal were dropped.

  • Added OUTPUT 7, $PMGWPL message.

  • Added support for CE version of M7

  • Added support for VHF version of M7

  • Heading field in PRAVE message no longer has a sign. It is always 0-360 degrees.

  • Added BANDL and BANDH commands that set the tuned band of the radio.
    User may read these to see what frequency range the radio is set to.  Never change them!


Version B25

  • Implemented WMX protocol.

  • Added SLOTNUM command to configure the slot number.  SLOTNUM -1 set it to match the ID.

  • Improved MODEM firmware operation in the presence of noise or distorted signals.

  • Added check to ensure that transmit time-out-timer cannot be set to 0.

  • Reduced duplicate-packet timer from 10 seconds to 3 seconds.

  • Fixed TLL lat/long leading zero bug.

  • Added ATJF command to set the CTS threshold byte quantity.

  • Randomized retries when ACK is used.


Version B18

  • Added FREEWHEEL command.

  • Improved receive MODEM performance with DC tracking.

  • Fixed PRAVE message bug where heading was sometimes negative.

  • Added support for MAGNET protocol.

  • Added TDMADATA command to give data priority over position.

  • Removed Auto Status feature. 

  • Speed up GPS lock and TDMA slot accuracy.


Version B13

  • Fixed bug in WPL sentence to the Lat/Lon fields.

  • Fixed TLL checksum calculation.

  • Added SLOTNUM command to set the number of TDMA slots a unit is allowed to use.


Version B10

  • Added FORCEON command to force the GPS receiver to be on at all times.

  • Added CPUMP, CHNUM, and ATRC commands.

  • Re-organized EEPROM data.  Upgrading from B9 or lower must be done at the factory.

  • Removed references and commands related to VSWR. 

  • Added REPEAT x command to allow quick repeater configuration.

  • Added BAND command to display the frequency band.

  • Commands now auto-save.  No need to issue ASV command.


Version B9

  • Added support for UA and UD radio types.

  • Added PA temperature compensation.

  • Changed default frequencies.

  • Added ATGP command to set/read the group number.  ATGP 0 turns group feature off.

  •  Added SLOTQTY to –GX version.

  •  Added CONFIG command to display the overall configuration.


Datasheet for UHV M7 GX

Technical Manual for the M7-GX GPS Transponder