RadioPopper PX - Manual (Page 18)

Radio Channel Selection - (CH)
Your PX units provide 16 individual radio frequency channels. Multiplied by the four channels of your existing flash
system, this provides an effective 64 distinct operating channels. Increment the channel number by tapping the “X”
button. Channels go from 01 to 16, followed by “P1” or “P”, then back to 01. Setting Radio Channel “P1” invokes the P1
Clone mode. Please refer to the P1 section later in this manual for more information.
Set your PX Transmitter and all PX Receivers to the same radio channel.
VERY IMPORTANT: You must exit the menu system before your devices will operate normally.
Auto Radio Channel Selection - (Ac) - Receiver Only
Your PX Receiver provides a handy feature for selecting a Radio Channel. In most cases, all of the channels will perform
equally well. However, the PX units share a radio frequency band with other devices such as wireless microphones and
other control systems which may be present in your environment.
The Auto Radio Channel Selection feature will go through each radio channel and listen to the level of background
radio signals. The test loop is performed 50 times and the levels of each channel are averaged. The PX Receiver will
then lock in the channel with the lowest measured background radio signals.
This will ensure that any PX radio channel with any observable background radio signal will automatically be skipped
or rejected, thus a clear channel is always set. In most cases, all or most of the radio channels will be at the same level
of “quiet”, so the unit has a fairly random chance of picking any of the quiet channels. It is therefore normal to observe
somewhat random selection of channels. Also, as channel 1 is the default, the Ac feature will never select channel 1.
This does not indicate channel 1 as being any less “quiet” than others.
Invoke the Auto Radio Channel Selection by tapping the “X” button. The unit’s Link LED will blink for about one second
as the test is performed. The selected channel will be displayed and the unit will jump back to the previous CH menu,
displaying the current channel.
Hardware Mode - (H)
To provide maximum flexibility and scalability, the PX units have being designed using completely separate internal
computer “programs” for handling each type of camera gear. These programs are tailored to best handle the different
“language” of control signals sent by various camera hardware. The current firmware provides full support for Canon
and Nikon hardware.
Tap the “X” button to cycle hardware modes. Set the default “C” for Canon hardware, and “n” for Nikon hardware.
Operating Instructions
Page 18