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.

see url VALID MOTOROLA PL CODES

XZ  67.Ø WZ  69.3 XA  71.9 WA  74.4 XB  77.Ø WB  79.7
YZ  82.5 YA  85.4 YB  88.5 ZZ  91.5 ZA  94.8 ZB  97.4
1Z 1ØØ.Ø 1A 1Ø3.5 1B 1Ø7.2 2Z 11Ø.9 2A 114.8 2B 118.8
3Z 123.Ø 3A 127.3 3B 131.8 4Z 136.5 4A 141.3 4B 146.2
5Z 151.4 5A 156.7 5B 162.2 6Z 167.9 6A 173.8 6B 179.9
7Z 186.2 7A 192.8 M1 2Ø3.5 8Z 2Ø6.5 M2 21Ø.7 M3 218.1
M4 225.7 9Z 229.1 M5 233.6 M6 241.8 M7 25Ø.3 ØZ 254.1

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Ø23 Ø25 Ø26 Ø31 Ø32 Ø43 Ø47 Ø51 Ø53 Ø54 Ø65 Ø71 Ø72
Ø73 Ø74 114 115 116 122 125 131 132 134 143 152 155
156 162 165 172 174 2Ø5 212 223 225 226 243 244 245
246 251 252 261 263 265 266 271 3Ø6 311 315 325 331
343 346 351 364 365 371 411 412 413 423 425 431 432
445 446 452 455 464 465 466 5Ø3 5Ø6 516 521 525 532
546 552 564 565 6Ø6 612 624 627 631 632 645 652 654
662 664 7Ø3 712 723 725 726 731 732 734 743 754

http://earlylearningalliance.org/calendar/2017-06-08/ Codes shown in red are not standard and are not recommended.