The typical use of dual-hop is shown below. In this diagram, there are independent Rx1/Tx1 and Rx2/Tx2 frames. There is a dedicated hop signal to control each channel.

In this example, we will use dual hop mode to have one channel independently hopping and the second channel consistently receiving.

In this mode, the two channels could be viewed as two independent TDD transceivers. This allows for a great amount of flexibility. In this case, we can have channel 1 frequency hoping in a LO-retune setup and channel 2 constantly receiving data.

Dual Hop LO-Retune Example in TES

TES is somewhat limited for a setup like this, but more flexibility is provided in the APIs. We have included a TES session file and hopping table to simulate the system as intended above.

See this note in TES about dual hopping. This is only valid in TES.

For this reason, we set up the hop table with the first half of the table as values to be used in FH for channel 1 and the second half of the table to be a constant value (1.495 GHz).

You can see from the executed hop sequence that the channel 2 frequency is constant.

In the Rx tab, playing through Rx frames, it can be seen that channel 1 is frequency hopping and channel 2 is staying at a set frequency.

Recreate in TES:

1. Load the provided TES session file: Dual Hop Example.zip
2. Load the provided frequency hopping table
3. Program the part
4. Apply an in-band tone to Rx1/Rx2
5. In the Rx tab, play Rx and then play through the FH sequence using the popup