Amateur Television (ATV) 

In mid-2015, MDARC converted the downlink transmitter of its ATV system to be fully digital. We are now able to transmit four channels of HD quality content in the same bandwidth that the old analog transmitter required. This also means that a digital receiver is needed to receive the MDARC ATV signal. Analog reception is no longer operational. Our uplink receiver can now handle both analog and digital, however. So if you are transmitting into our system in analog, your existing analog equipment will still work.

Check into the following nets on W6CX 147.06 MHz + 100 PL repeater:

    * Tech Net on Tuesdays @ 18:00 hours local

    * ATV Net on Thursday @ 20:00 hours local

    * Bathrobe Net on Sundays @ 09:00 hours local

System Outputs:

MDARC's digital ATV (DATV) repeater transmits on 1244.50 MHz.

You may also watch us live on the Internet at

You may also find it at

System Inputs:

The repeater's receiver provides multiple inputs for you to transmit into; four digital and two analog:

Digital Inputs:     1292.50 MHz

                             1273.00 MHz

                                  915.00 MHz

                                 430.00 MHz

Analog Inputs:    1270.00 MHz FM


Receive Equipment

So what do you need to receive MDARC's DATV signals? Here's a short list:

You may also need one or more adapters to convert from the antenna connector (usually an N-type) to the F-connector on the RG-6 coax.

Transmit Equipment

If you are planning to buy or build an ATV transmission system, MDARC recommends going digital. You will need:

*Some of us are using instead a Harmonic MV-50 Encoder w/ Harmonic PSM-3600 Satellite Modulator.

Some needed specs:

More Information:

Subscribe to these Yahoo groups:

MDARC Digital ATV Repeater Block Diagram