Thor Broadcast H-HDMI-RF-PETIT User Manual page 16

1 Modulation: Air is for ATSC standard and Cable is for QAM.
When it is Air, the constellation will be 8VSB.
While it is Cable, the constellation will be QAM64 or QAM256.
2 Major number and Minor number will help you to sort out the channel order.
3 RF Config. : In Select from list mode, you can quickly select the channel from the list. Please notice that the Major
number will change to match the Channel. For example: you choose CH-02 57MHz, then the major number is
automatically change into 2. Of course, you can edit the major number as you want after that.
4 Attenuation: the number input here is a negative value. For example, input number 5, the output level will minus
5 dB.
5 Constellation: In Air mode, it is 8VSB while in Cable mode, it is QAM64 or QAM256
6 Audio Encoder: AC3 or MPEG 2. Please choose one to go with your TV
In Cable mode, there will be three channel plans: STD, HRC and IRC.
Tel: (800) 521-8467 Email: sales@thorfiber.com
H-HDMI-RF-PETIT
http://www.thorbroadcast.com