User Manual

Pro Video Instruments
VeCOAX Compact RF Series Modulator Manual
13
INSTALLING MULTIPLE UNITS
To install multiple units on the same coax network, make sure to CHANGE the Frequencies,
Major/Minor, and Short Name of each Module BEFORE you connect them to the same coax network,
so there will be no Channel Conflicts. By default, each unit will be set the same. Please Test each unit
directly connected to a Test TV first with a short piece of coax before making it a permanent
installation such as a rack mount to make troubleshooting easier. Once you have all your unit’s setup
test again with a test tv first before combining the units with your coax network.
If you have other modulators or Digital signals you must find a harmony between the RF levels and
Frequency’s that are available such as ATSC (Over the Air Antenna) signal. Please refer to your other
modulators settings to find the frequencies the populated and set your unit to a different set. Please
see combining ATSC/QAM signals in our manual below for more information about combining with
other Digital Signals from Providers
To change the Frequencies of each module, press enter button the unit to enter the menu. Navigate
using the keys to FREQ. Press enter and use the navigation keys to change the numbers. The
frequency is in Kilohertz. So 783Mhzs would be 783000 kHz on the unit. Once you have set the
Frequency, press Enter, then move on to changing the Major/Minor channel as well as the short name
if you wish. Once you have set all your settings press ESCAPE. This will prompt you to save your
changes. Use the navigation keys to Highlight Yes and press Enter. The unit will now go back to the
main screen and restart the encoder. Once the unit saves the settings you will see “transmitting,” and
a Solid Blue LED on the “ON-AIR.”
Write down these values or channel numbers, or put a sticker on each unit with the newly assigned
frequency and channel Number so it will be easy to troubleshoot the unit in future without the need
to reset it or dismantle everything. Depending on your setup it’s suggested to use an active splitter or
combiner with more than 6 units, 40+ TVs or using multiple splitters (each splitter will lower the DB
level 5-10dbs depending on the quality) to ensure you get a clear signal to all your TVs no matter the
distance. If your system works without one then it is not necessary. Again, this is a suggestion and not
required for the operation of your devices.