Thank you for all the replies and great information. I have another question on code selection. Other than 411 being a code used for open repeater, what is the criteria for picking a DPL code. Also it looks like PL being preferred to DPL is not RFI specific as I have seen on frequency lists with PL being used in high RFI locatations. What do you think about leaving the squelch open and letting the DPL control the COR. Thanks again...
The DPL list I found. Standard 83 Digital Coded Squelch Codes 0nn 1nn 2nn 3nn 4nn 5nn 6nn 7nn 023 114 205 306 411 503 606 703 025 115 223 311 412 506 612 712 026 116 226 315 413 516 624 723 031 125 243 331 423 532 627 731 032 131 244 343 431 546 631 732 043 132 245 345 432 565 632 734 047 134 251 351 445 654 743 051 143 261 364 464 662 754 054 152 263 365 465 664 065 155 265 371 466 071 156 271 072 162 073 165 074 172 174