UG-1828 Preliminary Technical Data
Rev. PrC | Page 104 of 338
Figure 101, shows a Tx/Rx frequency hopping using LO retune. In contrast, the frame will the information of which channel the frame
needs to be at frame n (Tx or Rx), needs to be given at (n-1) frame time.
Figure 101 Tx-Rx Frequency Hopping Using LO Retune
Hop Signal and Hop Frame
Figure 102. Hop Signal and Hop Frame
In frequency hopping, the period in which a channel is enabled is defined as the hop frame. During each hop frame, data can be operated
on a new carrier frequency with either Rx or Tx. A hop frame is made up of a transition and a dwell period. The transition period is the
setup time for the hop frame.
The transition period is, at a minimum, the time required to setup the Rx or Tx channel and switch to a new operating frequency (first
portion of transition time in Figure 102). However, it can be whatever length the user decides for their framing requirements (second
portion of transition time in Figure 102).
The dwell period is the ‘on air’ time, where a channel is in RF enabled state. The dwell period can be any length of time the user requires
to operate on a frequency.
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