have a look at the RadioLib library
in particular RF69 examples
be careful many radio modules use 3.3V logic and can be damaged if directly connected to a 5V logic microcontroller such as the UNO, Mega, etc
check the specification of your specific device
Please explain what you mean by "basics". The RFM69HCW is an extremely complicated radio transceiver, which covers an incredible amount of territory.
If you just want to use two of the radio modules to send information over some distance, there are several libraries with simple examples that show you how to do that.
The RadioHead library is very popular, allows many configurations (ranging from dead simple two-way communications to self organizing networks) and works well.
Many thanks for taking the time to reply, my question was not properly explained sorry.
I am retired and just getting into the basics of electronics using the arduino cookbook.
I have looke at books and stuff about radio communication but they are beyond the level that I seek at least for now.
I am at a basic level; the devices have various connections and when I connect them using text instructions they don’t work and I don’t know the basics of what they are intended to do so I can’t fault find or trace.
I m seeking just a basic understanding of how and what the individual pads do and how to trace and identify them.
I don't have the Arduino Cookbook so can't address issues with the content. However, the Adafruit Learning Guides for their products are outstanding, and may be applicable to your setup.
If not, and you use parts from Adafruit, professional Adafruit staff members are happy to help via their user forum.