Lemco
HDMOD-Q1 manual v1.0
4
2. INTRO
Congratulations on purchasing the HDMOD-Q1. You now own a high quality,
“Home” DVB-T HD modulator. To get the most out of your purchase, please take the
time to carefully read through this manual
3. INSTRUCTIONS
3.1 DESCRIPTION
The HDMOD-Q1 is a high quality quad DVB-T "Home" modulator which accepts
four HDMI inputs and converts them into four RF DVB-T channels on its output. The
excellent picture (Full HD 1920*1080-30p) and modulation quality (MER~35dB)
renders the HDMOD-Q1 the ideal solution for distributing SD/HD digital signals
coming from e.g. a DVD player, STB or camera in a CATV network using the DVB-
T technology.
The user has the ability to control the device by either using the onboard SSD (
S
even
S
egment
D
isplay) interface and keypad for quick installation or by using the USB
interface with the appropriate software accompanying the HDMOD-Q1 for advance
programming.
Finally, the HDMOD-Q1
’
s metal case provides excellent electromagnetic shielding as
well as great temperature dissipation and rigidness.
3.2 FEATURES
•
4 x DVB-T RF out
•
High quality and performance
•
Very clean RF spectrum
•
MER value ~ 35dB
•
RF output frequencies 174...862MHz
•
H.264 HD encoder bitrate 1-19Mbps
•
HDCP support
•
User friendly interface for quick installation
•
USB interface for advanced programming
•
External power supply
3.2.1 Auto-reset functions and watchdog
During the normal operation of the HDMOD-Q1, the main CPU monitors all the
internal parts in order to ensure that the device works normally. In case of an internal
error or module failure, the HDMOD-Q1
immediately initiates the recovery procedure
by resetting the appropriate module or the device. Finally, watchdog timers ensure
that the device will be reset in case of CPU failure.
3.2.2 Buttons lock-mechanism
The HDMOD-Q1 will lock the functionality of its buttons after 5 min idle time to
avoid of being pushed accidentally. Two red dots on the SSD notify the user that the
