PL / DPL Radio Codes

What is PL or DPL?

PL stands for private line; it is a sub audio signal that becomes part of the radio transmission, from radio to radio. In the past technology used was called carrier squelch; this meant that unless another radio was transmitting on the same frequency, your radio would not break squelch, in other words, the speaker comes on.

As more and more people started using two-way radios, people started to listen to others on the same frequency. By adding PL to your frequency the radio must now be programmed for the same frequency and the same PL code. This helps reduce but not eliminate  you listening to someone else’s conversation.

By no means does PL make your conversation secure; it just merely mutes the speaker so no sound comes out until both conditions are true (same frequency and same PL). DPL, digital private line works on the same concept as PL, but it’s digital. They both work pretty much alike.

Again, it’s important to remember that neither technology PL nor DPL will make your conversation secure, all one needs to do is press the monitor button on the radio to hear everyone on that frequency,  regardless of PL or DPL.

Below are the PL and DPL codes used to program current radios.

VALID MOTOROLA PL CODES

67.0 – XZ69.3 – WZ71.0 – XA74.4 – WA77.0 – XB79.7 – WB
82.5 – YZ85.4 – YA88.5 – YB91.5 – ZZ94.8 – ZA97.4 – ZB
100.0 – 1Z103.5 – 1A107.2 – 1B110.9 – 2Z114.8 – 2A118.8 – 2B
123.0 – 3Z127.3 – 3A131.8 – 3B136.5 – 4Z141.3 – 4A146.2 – 4B
151.4 – 5Z156.7 – 5A162.2 – 5B167.9 – 6Z173.8 – 6A179.9 – 6B
186.2 – 7Z192.8 – 7A203.5 – M1206.5 – 8Z210.7 – M2218.1 – M3

VALID MOTOROLA DPL CODES

023025026031032043047051053054065071
072073074114115116122125131132134143
152155156162165172174205212223225226
243244245246251252261263265266271306
311315325331343346351364365371411413
423425431432455446452455464465466503
506516521525532546552564565606612624
627631632645652654622664703712723725
726731732734743754

Codes shown in BOLD are not standard and are not recommended.