User Manual

Pro Video Instruments

VeCOAX MicroMod 3 AV + HDMI RF Modulator Manual

MORE THAN TWO UNITS ONLY PICKING UP A FEW CHANNELS AND NOT ALL?

Ensure that each unit has its own Frequency, Major, Minor, and Channel Name.

If you have multiple units connected with a splitter or coax combiner, please check the signal coming

from the combiner directly plugged into a TV and scan for channels. You should be able to pick up all the

channels. If not, we might need to amplify the signal. Coax has a lot of variables to account for, so we

always need to start from the source and work our way up. Sometimes cheap splitters or combiners can

introduce harmonics that create noise causing the TV to skip a channel because it’s too dirty of a signal

to pick up. It is rare but happens from time to time with cheaper coax combining equipment.

BALANCING SIGNAL - SIGNAL NOT REACHING ALL THE TVS

This could be that the signal strength isn’t enough to reach all your TV sets. For example, if you have 12

TVs in a chain and the last 3 won’t pick up your channel, then you can buy an inexpensive coax amplifier

from online and add it to the coax line on the unit to boost the signal to reach the last 3 TV sets.

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 attenuator, or use the Advanced Options >

RF Attenuator option.

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.