Rx6x Tx Change


Two Tx's can be associated with each model. If you flick the switch, the motor in the current active model will stop and it will seek out the other Tx. The 2nd Tx will have to accept the model to take control.


This feature uses two 'profiles'. Tx's have different Bind info and often have different characteristics (eg: number of channels, types of switches, etc). So any setting that could be affected by this is duplicated using the two profiles. The duplicated items have a '2' in the Tx column of Programming Options (Rx61).


When the Rx is switched on it scans for a Tx. The led flashes once every 2s if it is scanning for Tx#1 and twice if it is scanning for Tx#2. The Rx always scans first for the Tx that last used the Rx. It scans for that Tx for 18s and then spends 18s trying to find the other Tx.


You normally only bind once to create an Rx/Tx pairing. If set to AutoBind, 36 seconds after scanning the Rx always enters Bind mode if it does not connect with a Tx. The led will flash fast. If a Tx binds with the Rx now it will use the profile number that was flashing in the second 18s period. In other words, it will try to replace the 'oldest' profile. So you must always use the Rx with the Tx you want to 'keep' before switching off and binding the second Tx.


The Rx normally finds the Tx within a couple of seconds of being switched on. They are now connected. The led will come on solid if everything is OK.

In Tx Change mode two conditions are necessary to accept and operate the Rx:
1. The activating channel for the current Rx has to be in the correct position.
2. The channel to change Tx has to be in the 'mid to high' position (not 'low').

The number of led flashes reveals the current state:
1-flash - scanning for Tx#1.
2-flash - scanning for Tx#2.
3-flash - the activating switch is in the wrong position for this Rx.
4-flash - the channel to change Tx is in the 'low' position.
5-flash - low voltage.
Fast flash - Binding


Once an Rx has connected to a Tx it will not 'let go' on its own. But after accepting the Rx you can 'push it away' by flicking the Tx Change switch (low position). This kills all outputs and instructs the Rx to scan for the other Tx. It will do this for 18s. If it does not find the other Tx will will keep toggling between the two profiles every 18s.

The 'Tx Change' action only instructs the Rx to start scanning again using the other profile first. The Rx will connect to whichever Tx it can find. So for the change to be effective, the other Tx must be switched on first. Whichever Tx the Rx connects to has to 'accept' the Rx as described above. There is no great rush to do this. The Rx will stay connected to whichever Tx it finds until (1) it is accepted, or (2) the Tx is switched off, or (3) the Sleep timer kicks in.


With the 1st Tx:
1. Set up Dedicated Mode and get that working.
2. Enable Tx Change mode (5,1,4).
3. Set up Tx Change channel 'x' (5,4,x).

4. Perform tests with Tx#1:
-Check that you can still connect and have control and led is on solid when the Tx Change channel is 'high'.
-Check that you lose control when the Tx Change channel is moved to 'low'.
-Check that the led has a 2-flash for 18s while it searches for Tx#2.
-Check that the Rx connects to Tx#1 (4-flash if Tx Change channel is low and led on solid if high).

With the 2nd Tx:
5. Switch Tx#1 off, Tx#2 off and Rx off.
6. Switch Rx on and Bind Tx#2 after 36s scanning.

The default settings for Tx#2 are: ActCh=Ch6, SwitchPos=3, ActPos=3(High), TxChangeCh=Ch5.
If these are appropriate, Tx#2 can gain control after binding.
If those settings are not appropriate, switch Rx off after binding and enter programming mode to set correct settings for Tx#2:

7. Set up Activating channel (5,2,x,x,x).
8. Set up Tx Change channel 'x' (5,4,x).

Note: When making programming changes with the Tx, there are 3-5 levels of programming choices. The led will come on solid at the end only if the Activating channel and Tx Change channel are in the correct positions. If they are in the wrong positions the led will start a 3-flash or 4-flash after programming. This can be confusing.


It is important to realise that changes to Rx settings marked with a '2' in the 'Tx' column of Programming Options belong to Profile #1 or Profile #2. These are mostly settings relating to outputs or channel choices. So when setting up a model these should all be done with the same Tx/Profile. Profiles exist because Tx's can have differences. However, it may be easier to start with the working profile than starting over so there is a copy option. For the copy to be effective you know which you are using. This is indicated by the number of flashes when the Tx connects at startup.

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