Digital Transmitter
Rio Rancho, NM
15
Firmware Update
Instructions
Firmware updates are made with a file downloaded from
the web site and the DCHT or DCHT/E01 connected via
USB, and Wireless Designer software.
The USB port on the transmitter requires a micro-B male
plug on the connecting cable. The other end of the cable
would normally be a USB A-Type male connector to fit
the most common type of USB jack used on computers.
UPDATE
Put the transmitter in UPDATE mode
by simultaneously holding down the
UP
and
DOWN
arrow buttons on the
transmitter control panel while power-
ing it up.
Refer to
Help
in Wireless Designer
software for instructions.
DCHT
V1.10
/1.10
Once the Update has completed, turn
off the transmitter, then turn it back on
to verify that the firmware version on
the transmitter LCD matches the
firmware version shown on the web
site. The firmware is the second LCD
display during boot up sequence.
Specifications
Operating Frequencies:
DCHT
470.100 - 607.950 MHz
DCHT/E01
470.100 - 614.375 MHz
NOTE: It’s the user’s responsibility to select the
approved frequencies for the region where the
transmitter is operating
Operating temp. range:
Celsius: -20° - 50°; Farenheit: -5° - 122°
Frequency Selection Steps: 25 kHz
RF Power Output:
Selectable; 10, 25 or 50 mW
Frequency Stability:
± 0.002%
Spurious Radiation:
DCHT Compliant ETSI EN 300 422-1 v1.4.2
DCHT/E01
Compliant ETSI EN 300 422-1 v2.1.2
Digital Modulation:
8PSK
Encryption:
AES 256-CTR (per FIPS 197 and FIPS 140-2)
Equivalent Input Noise:
–128 dBV
Input Types:
• Analog; mic and line level
• AES digital
Input Level (analog)
• Mic: Nominal 2 mV to 300 mV, before limiting
Greater than 1V maximum, with limiting
• Line: +24 dBu before limiting
Input Impedance:
• Mic: 300 or 4.5 k ohm; selectable
• Line: greater than 100 k ohm
Input Limiter:
Dual envelope type; 30 dB range
Gain Control Range:
51 dB in 1 dB steps; digital control
Modulation Indicators:
• Bicolor LED indicates modulation of
-20 and 0 dB referenced to full modulation
• LCD bar graph
Frequency Response:
15 Hz – 11.3 kHz, +0, -3 dB
Controls:
• Top panel toggle switch; programmable as
power
,
mute
or
none
(off) function
• Front panel membrane switches with LCD
interface for power on/off and all setup and
configuration controls
Audio Input Jack:
Switchcraft 6-pin locking (TA6F)
Antenna:
Galvanized steel, flexible wire, SMA connector
Battery:
Two AA Lithium recommended
Battery Life:
5 hours
Weight:
• 5.75 ozs. (163 grams); w/ belt clip and lithium
AA batteries
• 6.40 ozs. (181 grams); w/ belt clip and Duracell
Quantum AA batteries
Overall dimensions:
3.45 x 2.44 x .742 in. (88 x 62 x 19 mm)
Emission Designator:
200KG7E
Specifications subject to change without notice
WARNING: Do not connect more than one
Lectrosonics device to your computer while
updating firmware. Wireless Designer may
need to be updated to the current version to
perform a firmware update on recent products
