Azbox Premium HD+ - RF Channel Number; RF Audio Type

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3.7.9. RF Channel Number
You can choose the RF channel number: 21 to 69.
Your TV must be set to this channel in order to view the output of your
receiver. If this channel is currently being used as a broadcast channel
or if you are getting interference on this channel, you may change the
channel to an unused number. Then change your TV to that channel in
order to view the output. The default setting is 21.
3.7.10. RF Audio Type
You can choose the RF audio type. The default setting is B,G 5.5Mhz.