User Manual

Pro Video Instruments
VeCOAX Compact RF Series Modulator Manual
20
Please note in some cases after amplification of the signal the first few TVs might start to see digital
artifacts or signal issues. This is due to the Signal becoming stronger for the first few TVs and as the
signal travels down the coax cable it slowly becomes attenuated which results in the other TVs not
having this issue. To combat this please add an inline digital attenuation for those TVs having issues
which can be bought online
WHAT IS EDID?
Extended Display Identification Data (EDID) is a metadata format for display devices to describe their
capabilities to a video source (e.g. graphics card or set-top box). It is the Basic HDMI language used for
device to communicate their supported resolution as well as audio formats. When you plug let’s say a 4k
Blu-ray player into your TV and your TV only supports 1080P. The TV will communicate this with the Blu-
ray and the Blu-ray responds by setting its resolution automatically to 1080P and not 4k.
CHANGING THE CHANNEL ON MY SET TOP BOX RECEIVER CAUSES ME TO LOSE THE
CHANNEL FOR 15-45 SECONDS BEFORE DISPLAYING AGAIN.
Please ensure that your HDMI source is set to a Fixed 1080i/p or 720P and only one resolution is
selected. If you are still having issues, please try using our advance menu > Fixed EDID > 1080 or 720,
depending on the supported resolution from your HDMI source.
WHAT DOES MAJOR AND MINOR DO?
Major and Minor are used as a reference number for your TV to understand. When you tune to channel
10.1 the tuner goes to the frequency you have set on the unit. When a TV scans it looks for the
Frequency first and then sees the attached VCT (virtual channel table) data attached to that channel.
This then overwrites the Physical channel number as shown in the frequency chart (783.00mhz is
physical channel 122) and stores the channel with the assigned Major/Minor you have set on the unit.
WHAT IS THE DIFFERENCE BETWEEN FREQUENCY CHANNEL LISTED ON THE CHARTS VERSUS
THE MAJOR MINOR CHANNEL NUMBER?
The frequency listed on the charts is what is called the Physical channel number. When no VCT (virtual
channel table) is assigned, the Tuner defaults to the Physical channel number. (For example,
783.000mhz QAM is channel 122.) When VCT is enabled and a Major/minor is set on the unit, the TV will
overwrite its normal programming and use the Assigned number such as 10.1 or 1.1 which is the default
on the unit. Most modern TVs won’t accept or save a channel without VCT so by default we can not
disable VCT to ensure the max combability with all TVs. If you wish to use the same Channel number as
the Physical channel number, then set the Major/Minor to match. For example, 195.000Mhz QAM is
physical channel 10. So, we set the Major/Minor to 10.1. Each digital cable channel must have a Major
and Minor. So, all Channels will display its Major and Minor number 10.1, 11.1, 12.1, 13.1 etc.