Midland Radio P-20 User Manual

http://www.midlandradio.com 

Page 4 of 16 

 

 
Your wireless hand-held portable transceiver contains a low power transmitter.  
When the Push-to-Talk (PTT) button is pressed it sends out radio frequency (RF) 
signals.  The device is authorized to operate at a duty factor not to exceed 50%. In 
August 1996, the Federal Communications Commission (FCC) adopted RF 
exposure guidelines with safety levels for hand-held wireless devices. 
 
To maintain compliance with the FCC's RF exposure guidelines, this transmitter 
and its antenna must maintain a separation distance of least 2 inches (5 
centimeters) from your face. Speak in a normal voice, with the antenna pointed up 
and away from the face at the required separation distance. The belt clip is for 
storage purposes only. DO NOT TRANSMIT WHILE USING THE BELT CLIP. To 
transmit, hold the device away from your body and ensure the antenna is at least 2 
inches (5 centimeters) from your body when transmitting.  

 
 
A NOTE ABOUT THE CTCSS or DCS CODES 
This radio incorporates 38 CTCSS (Continuos Tone Coded Squelch System) codes and 83 DCS 
(Digital Coded Squelch) codes that, when activated, prevent the user from hearing other radios 
that do not have the same code. These codes do not make your conversation private. If you 
experience difficulties contacting or hearing other radios in your group make sure the CTCSS or 
DCS code is set the same on all radios. If you are using the P20 where interference from other 
radios or electrical devices are present, enabling the CTCSS or DCS codes will usually mute the 
interference. Many times interference will be noticed by the presence of loud static from the 
speaker.