User Manual

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For pitchers that only want to hear the pitch selection, and not the location, a separate
transmitter mode can be used that will send a pitch selection after only one button is pushed.
No location is given in this mode. Changing transmitter modes is easy to do and can be done
during the game by the catcher.
The transmitter has volume up and volume down buttons which control the volume of the
catcher’sreceiver, since the catcher won’t be able to easily control the volume through the cap.
Instead, the catcher presses the volume up and the volume down buttons on the transmitter to
adjust the volume levels of his receiver.
Calling a Pitch and Location
To call a pitch, the catcher pushes any one of the buttons 1-9. The white LED light (not shown
in Figure 2) on the transmitter will light up and stays lit after the first push of a button. No
sound will be heard through any receiver after only the first push of a transmitter button. To
call a pitch, the catcher pushes any one of the buttons 1-9 again. This second push causes the
transmitter to automatically and immediately send out an encrypted signal to each of the
receivers. Within milliseconds, the encrypted signal is decoded at each receiver and causes
each receiver to play an audio track that announces both the pitch type and the pitch location.
As an example, the catcher first pushes button 2 and then button 9. This sends an encrypted
signal to each of the receivers. Each receiver decodes this signal and will play “Curveball low
outside”. Upon pushing the second button, the white LED will turn off.
If the catcher wants to change either the pitch type or location after pushing one or both
buttons, he presses the button “cancel”. The word “cancel” will be heard in each receiver. If the
cancel button is pressed after just one button has been pushed, the transmitter is reset, and
the pitch
selection and pitch location can be selected as before. If the cancel button is pressed after both
buttons have been pressed and the audio tracks already played in the receivers, the word
“cancel” is heard, alerting the players to disregard the called pitch and location, and the catcher
then simply calls a new pitch and location.
After the encrypted signal is sent, the transmitter is reset for the next pitch type and location
selection. If the pitcher doesn’t like the pitch or location, he simply shakes off the sign as
normal, asking for a new pitch or location. The catcher only needs to push the buttons again to
call the new pitch and location.