SMV

This model is not capable of firmware updates in the field so no files are available for download. Contact Lectrosonics if you need a firmware update.

SMQV, SMV, SMB/E01, SMDB/E01 v1.92 – 07 January 2013

Identical to v1.91, but fixes a display problem in which three digit block numbers (e.g. block 470) were shown incorrectly during the boot sequence.

SMQV, SMV, SMB/E01, SMDB/E01 v1.91 – 25 October 2012

A backport of version 3.2, this is the latest version available for existing units running firmware version 1.8 and older (original LMX2353 PLL).

Battery telemetry signaling is quieter, without upsetting calibration. (No realignment is required in order to take this update from version 1.9 or older.) The improvements described in the notes for version 3.1 and version 3.2 have been applied.

SMQV, SMV, SMB/E01, SMDB/E01 v1.9 – 21 February 2012

A backport of version 3.0, this is the latest version available for existing units running firmware version 1.8 and older (original LMX2353 PLL).

Full coverage of the 608-614 MHz range is now available on SMB/E01 units.

SMQV, SMV, SMB/E01, SMDB/E01 v1.8 – 03 October 2011

This version is identical to v1.7 except that the bootloader improvements from versions 2.6 and 2.7 have been incorporated. No user apparent changes have been made since v1.7, and the bootloader improvements can only be realized with a Microchip device programmer. (A LectroLink update replaces everything but the bootloader.)

The primary reason to apply this update (effective via the Microchip device programmer only) is that a unit running older v1.x firmware erroneously powers up in the UPDATE mode.

SMQV, SMV, SMB/E01, SMDB/E01 v1.7 – 29 June 2010

• Fixed obscure display glitch in Rf Off mode.
• Corrected block 33 frequency coverage; block now correctly ends at 861.9 MHz.

SMQV, SMV, SMB/E01, SMDB/E01 v1.6 – 14 April 2010

Enhanced factory calibration functions.

SPECIAL UPGRADE WARNING: Normally version 1.6 would not be needed as an update or upgrade, since no new features have been added, nor bugs fixed, which are apparent to the user. Furthermore, this version should be applied with great care, consulting the release notes, if applied at all. Some of the new factory features permit selective disabling of compatibility modes and power output levels. If these enable/disable flags are not set carefully, an upgraded unit may no longer offer all of the compatibility modes and power output levels previously available.

SMQV, SMV, SMB/E01, SMDB/E01 v1.5 – 27 January 2010

Powered-on state may now be restored or not restored (at the user’s option) when batteries are replaced.

SMQV, SMV, SMB/E01, SMDB/E01 v1.4 – 15 December 2009

Added logic to keep the power on if needed, in case only slight contact is made initially during battery insertion.

SMQV, SMV, SMB/E01, SMDB/E01 v1.3 – 18 November 2009

Added brownout detector to ensure clean powerup in the event of loose battery contacts.

SMQV, SMV, SMB/E01, SMDB/E01 v1.2 – 10 August 2009

• Improved accuracy of mode 3 emulation.
• Added powerup delay to prevent erroneous invocation of firmware update mode.

SMQV, SMV, SMB/E01, SMDB/E01 v1.1 – 26 March 2009

Added transmitter power information to powerup display sequence.

SMQV, SMV, SMB/E01, SMDB/E01 v1.0 – 25 February 2009

First production version.

This model is not capable of firmware updates in the field so no files are available for download. Contact Lectrosonics if you need a firmware update.

SMQV, SMV, SMB/E01, SMDB/E01 v6.5 – 19 November 2017

Version 6.5 is a backport incorporating the following enhancements from later versions.

• Backport of “NU Hybrid” functionality for older units which previously required version 3.x firmware.

SMQV, SMV, SMB/E01, SMDB/E01 v3.4 – 27 September 2016

Version 3.3 is a backport incorporating the following enhancements from later versions.

• Pilot tone is now extinguished in “Rf Off” mode, so receivers will not break squelch even if the transmitting and receiving antennas are extremely close to one another

SMQV, SMV, SMB/E01, SMDB/E01 v3.3 – 26 August 2015

Version 3.3 is a backport incorporating the following enhancements from later versions.

• From v5.4: LED Off feature, new remote control signals, corrected block 23 guard bands in non-export version.
• From v5.3: Optional 25 kHz tuning step mode.
• From v5.0: Improved dynamic tracking in mode 6, fixed UI bug.

SMQV, SMV, SMB/E01, SMDB/E01 v3.2 – 15 August 2012

• Shaped battery telemetry signaling for slightly lower noise floor.
• Added logic to ensure that audio buffers remain synchronized after a sleep/wake cycle. (Backport of these features only from v4.7. No other changes.)

SMQV, SMV, SMB/E01, SMDB/E01 v3.1 – 25 April 2012

Fixed problem wherein pilot tone could be incorrectly encoded after a sleep/wake cycle.

SMQV, SMV, SMB/E01, SMDB/E01 v3.0 – 09 February 2012

• Reduced current drain in sleep mode.
• Fixed a bug wherein the transmitter power level wasn’t always correctly restored after a remote control sleep/wake cycle.

SMQV, SMV, SMB/E01, SMDB/E01 v2.9 – 06 July 2011

Fixed a problem in compatibility modes “100” and “3”, which caused sibilants to sound crackly. Also, the audio metering in mode 3 was adjusted to better match that of compatible receivers. (These changes affect compatibility modes “100” and “3” only.)

SMQV, SMV, SMB/E01, SMDB/E01 v2.8 – 31 March 2011

Increased battery telemetry adjustment range and scaling, for faster and easier factory alignment and fewer component changes. (No user apparent changes were made since v2.7.)

SMQV, SMV, SMB/E01, SMDB/E01 v2.7 – 04 February 2011

This version has no customer perceptible changes since version 2.6. Version 2.7 fixes a problem with the bootloader which prevented the LectroLink adapter from accomplishing certain firmware updates (notably the upgrade from v2.3 forward). Since only the bootloader was changed, the only reason to upgrade from v2.6 to v2.7 is to make it safer to use LectroLink to take further updates in the future.

SMQV, SMV, SMB/E01, SMDB/E01 v2.6 – 25 January 2011

• SMB/E01 export units on blocks 23 and 606 now include the 608-614 MHz range.
• Fix a problem where some units would erroneously power up into UPDATE mode some of the time.

SMQV, SMV, SMB/E01, SMDB/E01 v2.5 – 16 December 2010

Fixes a bug, introduced in version 2.4, where the “-20” LED didn’t always operate correctly.

SMQV, SMV, SMB/E01, SMDB/E01 v2.4 – 30 November 2010

Unit will no longer issue PLL alarms during normal tuning from one end of the block to the other (a problem previously affecting 2.x versions only).

SMQV, SMV, SMB/E01, SMDB/E01 v2.3 – 29 June 2010

Fixed obscure display glitch in Rf Off mode. Corrected block 33 frequency coverage; block now correctly ends at 861.9 MHz.

SMQV, SMV, SMB/E01, SMDB/E01 v2.2 – 19 May 2010

New LF roll-off digital potentiometer allows for more accurate placement of -3dB point for the six roll-off settings.

This model is not capable of firmware updates in the field so no files are available for download. Contact Lectrosonics if you need a firmware update.

SMQV, SMV, SMB/E01, SMDB/E01 v5.6 – 16 March 2021

• When adjusting frequency, carrier no longer comes back on in the middle of a long scroll through the available frequency range.
• Plus 10 dB limit indicator is now more accurate across the mic input gain adjustment range.
• In Rf Off mode, arrow keys invoke “hold” reminder message, rather than LED Off function.

SMQV, SMV, SMB/E01, SMDB/E01 v5.5 – 20 April 2016

• Pilot tone is now extinguished in “Rf Off” mode, so receivers will not break squelch even if the transmitting and receiving antennas are extremely close to one another
• Frequency scrolling (when pressing and holding up/down buttons) is fast again after having been unintentionally made slightly slower in version 5.4.

SMQV, SMV, SMB/E01, SMDB/E01 v5.4 – 26 August 2015

• LED Off feature: In normal operating mode, the DOWN and UP buttons may be used to turn the audio and power LED indicators off and on respectively. This setting does not persist through a power cycle and the LCD backlight is not affected by this setting.
• Added new remote control signals (“dweedle tones”) for…
  • tuning in 25 kHz steps
  • changing the low frequency roll-off setting
  • turning off the power and audio LEDs
  • mic gain UP and mic gain DOWN functions
• Adjusted 608-614 MHz protection “guard band” (non-export block 23 units only) for compliance in new 25 kHz tuning mode.

SMQV, SMV, SMB/E01, SMDB/E01 v5.3 – 20 January 2014

Added 25 kHz tuning step mode.

SMQV, SMV, SMB/E01, SMDB/E01 v5.2 – 08 May 2013

No user-apparent changes. Simplified factory configuration and alignment process by adding several serial commands and one new diagnostic menu screen.

SMQV, SMV, SMB/E01, SMDB/E01 v5.1 – 17 April 2013

Changed PLL lock/unlock guard times to prevent erroneous cycling of RF output amplifier during factory alignment.

SMQV, SMV, SMB/E01, SMDB/E01 v5.0 – 27 March 2013

• Made a slight improvement to dynamic tracking in compatibility mode 6.
• Fixed a bug in the user interface wherein it was possible to exit from the RF power level setup screen to the main operating screens, while still not radiating RF.
• Re-introduced the ability to use the LectroLink adapter to perform future firmware updates, by replacing the “bootloader” portion of the code. Firmware updates via Microchip’s device programmer are always possible and do not involve the bootloader.

SMQV, SMV, SMB/E01, SMDB/E01 v4.9 – 18 September 2012

Increased power level (and thus the accuracy) of the microprocessor brownout detection circuit.

SMQV, SMV, SMB/E01, SMDB/E01 v4.8 – 07 August 2012

Building on the improvements in v4.6, created a protected memory storage class for crucial system setup and calibration parameters.

SMQV, SMV, SMB/E01, SMDB/E01 v4.7 – 30 July 2012

Restored factory access to battery telemetry settings, lost since v4.5. Nothing else changed since v4.6.

SMQV, SMV, SMB/E01, SMDB/E01 v4.6 – 25 July 2012

• Shaped battery telemetry signaling for slightly lower noise floor.
• Added powerup delays, checksums and multiple read attempts to ensure robustness of non-volatile memory.

SMQV, SMV, SMB/E01, SMDB/E01 v4.4 – 30 April 2012

Added logic to ensure that audio buffers remain synchronized after a sleep/wake cycle.

SMQV, SMV, SMB/E01, SMDB/E01 v4.3 – 10 April 2012

Changed volume control logic to accommodate a reworking of the volume control circuit. All 17446 audio boards (backlit LCD) receive this hardware and firmware update.

This model is not capable of firmware updates in the field so no files are available for download. Contact Lectrosonics if you need a firmware update.

SMQV, SMV, SMB/E01, SMDB/E01 v6.3 – 02 Feb 2021

• When adjusting frequency, carrier no longer comes back on in the middle of a long scroll through the available frequency range.
• Plus 10 dB limit indicator is now more accurate across the mic input gain adjustment range.
• In Rf Off mode, arrow keys invoke “hold” reminder message, rather than LED Off function.

SMQV, SMV, SMB/E01, SMDB/E01 v6.0 – 11 October 2018

• Introduces “Nu Hybrid” compat mode, which replaces the legacy “400” mode. “Nu Hybrid” mode conforms to the ETSI standard now in effect for wireless microphone transmitters in the United States. Version 6.x firmware is for use in units shipping with these FCC ID numbers:
  • DBZSMQV47A
  • DBZSMQV19A
  • DBZSMQV20A
  • DBZSMQV21A
  • DBZSMQV22A
  • DBZSMQV23A

  All new product shipped after October 13th, 2018 to US customers will bear these FCC ID numbers and use 6.x firmware.

• Note: the SMB/E01 and SMDB/E01 export models for the EU are unchanged by this firmware version.

SMV-941, SMQV-941, SMV/E07-941 v1.2 – 09 December 2021

• When adjusting frequency, carrier no longer comes back on in the middle of a long scroll through the available frequency range.
• Plus 10 dB limit indicator is now more accurate across the mic input gain adjustment range.

SMV-941, SMQV-941, SMV/E07-941 v1.0

• First production release.