Lectrosonics MTCR, Instruction Manual

Portable Digital Recorder

Rio Rancho, NM

9

About Card

View information about the microSDHC memory card. 

See storage used, storage capacity and available re-

cording time.

Fuel gauge

Storage 

capacity

Available recording 

time (H : M : S)

Storage used

Next file name

Settings...

Record Mode

There are two recording modes available in the menu, 

HD Mono, which records a single audio track and Split 

Gain, which records two different tracks, one at the nor-

mal level and another at -18 dB as a “safety” track that 

can be used in place of the normal track in the event 

that overload distortion (clipping) has occurred on the 

normal track. In either mode, recordings over 4GB are 

broken into sequential segments so very long record-

ings (over approx 5 hours in HD mode or 2.5 hours in 

split mode) will not be a single file.

NOTE: See Mic Level.

NOTE: The headphone output will be muted when 

recording.

Bit Depth

MTCR defaults to 24-bit format recording, which is a 

more effecient space saving format. 32-bit is available 

if your editing software is older and won’t accept 24-bit. 

(32-bit is actually 24-bit padded with zeros, so more 

space is taken up on the card.)

Date & Time

The MTCR has a real time clock/calendar (RTCC) 

which is used for timestamping the files it writes to the 

SD card. The RTCC is able to keep time for a minimum 

of 90 minutes with no battery installed, and can keep 

time more or less indefinitely if any battery, even a 

“dead” battery, is installed. To set the date and time, use 

the MENU/SEL button to toggle through the options and 

the UP and DOWN arrow buttons to choose the appro-

priate number.  

WARNING: Since the real time clock/calendar 

can be manipulated and/or stop with loss of 

power, it should not be relied upon for accurate 

time keeping. Only use this option when a time 

clock is not available.

Lock/Unlock

The LOCKED mode protects the recorder from acciden-

tal changes to its settings. When locked, menu naviga-

tion is possible, but any attempt to alter settings will 

prompt a “LOCKED/can use menu to unlock” message. 

The unit can be unlocked using the Lock/Unlock setup 

screen. The “dweedle tone” remote control will still work.

Backlight

The recorder backlight can be set to turn off after either 

5 minutes or 30 seconds, or to stay on continuously. 

Bat Type

Choose either Alkaline or Lithium battery type. The volt-

age of the installed battery will be shown at the bottom 

of the display.

NOTE: Although alkaline batteries will work in 

the MTCR, we strongly recommend that they 

be used only for short-term testing. For any 

actual production use, we recommend the use of 

disposable lithium AAA batteries.

Remote

The recorder can be configured to respond to “dweedle 

tone” signals from the PDRRemote app or to ignore 

them. Use the arrow buttons to toggle between “yes” 

(remote control on) and “no” (remote control off). The 

default setting is “no.”

About MTCR

The MTCR’s firmware version and serial number  

are displayed.

Default

To return the recorder to its factory default settings, use 

the UP and DOWN arrow buttons to choose 

Yes

.

Firmware Updates

Firmware updates are made using a microSDHC 

memory card. Download and copy the following firm-

ware update files to a drive on your computer.

• 

MTCR vX_xx.ldr

 is the firmware update file, where 

“X_xx” is the revision number.

In the computer:

1) Perform a Quick Format of the card. On a Windows-

based system, this will automatically format the 

card to the FAT32 format, which is the Windows 

standard. On a Mac, you may be given several 

options. If the card is already formatted in Win-

dows (FAT32) - it will be greyed out - then you do 

not need to do anything. If the card is in another 

format, choose Windows (FAT32) and then click 

“Erase.” When the quick format on the computer is 

complete, close the dialogue box and open the file 

browser.

2) Copy the 

MTCR v1_xx.ldr

 file to the memory card, 

then safely eject the card from the computer.

In the MTCR:

1) Leave the MTCR turned off and insert the microS-

DHC memory card into the slot. 

2) Hold down both the UP and DOWN arrow buttons 

on the recorder and turn the power on.

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