ATN Talk

ATN Talk

Welcome to ATN Talk, our community forum. Please feel free to post comments and discussions pertaining to amateur television and the Amateur Television Network.

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Snow Peak Digital Bandwidth

What's the thinking on the Digital Bandwidth signals on Snow Peak? The 434 MHz Input has a 2 MHz Bandwidth and the 1242.00 Bandwidth is listed as 4 MHz.

Hi Mike!

The 434 MHz is 2 MHz B/W due to our crowded bandplan with the 6 MHz range from the 434.0 center frequency (satellite and remote base). The 4 MHz bandwidth at Snow Peak is by choice to reduce the needed bandwidth and to provide "elbow room" for the point to point links from 1246.00 MHz - 1248.00 MHz.

Generally speaking, a digital DVB-T or T2 signal is a continuous signal with the same amplitude throughout the selected bandwidth.

A vestigial sideband signal (analog) uses 3 carriers (video, chroma, and audio) which is not a continuous signal.

In conclusion, we use 2 MHz and 4 MHz (Snow Peak) mainly to reduce bandwidth.

Great explanation, thank you Roland! Love that you provide visuals in your responses.