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Starter Code Plugs
and Information
for the New DMR User
John 'Miklor' K3NXU
These code plugs were are set up specifically for three UHF repeaters in the York / Harrisburg, PA area. Some of the code plugs include a zone for the openSPOT which is set to 434.0MHz.
The openSPOT frequency of 434.0 would need to be changed to a UHF channel that does not interfere with local repeater link traffic. In the US, refer to either the ARRL Band Plan for an available frequency, or check with the local frequency coordination group for your region.

These are working examples only and to be used as guides.  Any further modification or customization of these code plugs is up to you.  I hope they assist on getting you started.

Anytone D868UV
Connect Systems CS-800D
Connect Systems CS-580
Retevis / Ailunce HD-1
TYT MD-380
TYT MD-2017
TID TD-9800
Radtel RT-27D

When adding additional repeaters, be aware that not only do the frequencies change, but also the:
-  Color Codes
-  Time Slots
-  Talk Groups
-  Access (PTT or Full Time)

Not all repeaters share the same configurations, and vary from one repeater to another. A simple Cut and Paste will not work.

As an example, below are some of the differences between repeater's in the Baltimore / Harrisburg I-83 corridor.

Color Code 1
(York, PA)
Color Code 1
Cornwall &
Color Code 1
Color Code 6
   Local 2 2  (FT) 2  (FT) 2  (FT) 2  (FT)
   Local 8 2  (FT) 2  (FT) 2  (FT) --
   Local 9 2  (FT) 2  (FT) 2  (FT) 2  (FT)
   PA TAC 1  (PTT) 1  (PTT) 1  (PTT) --
   N America 1  (PTT) 1  (PTT) 1  (PTT) 1  (FT)
   Worldwide 1  (PTT) 1  (PTT) 1  (PTT) 1  (PTT)
   WW English 1  (PTT) 1  (PTT) 1  (PTT) 1  (PTT)
   PA State 1  (FT) 1  (FT) 1  (FT) 2  (PTT)
   NE Regional 1  (FT) 1  (FT) 1  (FT) 2  (PTT)
   MD State 1  (FT) 2  (PTT) 2  (PTT) 2  (FT)
   Mid Atlantic 1  (FT) 2  (PTT) 2  (PTT) 2  (FT)
   TAC 310 2  (PTT) 2  (PTT) 2  (PTT) 2  (PTT)
   TAC 311 2  (PTT) 2  (PTT) 2  (PTT) 2  (PTT)
   TAC 312 2  (PTT) 2  (PTT) 2  (PTT) 2  (PTT)
All other Talk Groups allowed through a repeater will be added to TS2 and coordinated by the local repeater administrator.

Color Code - This is the digital equivalent of a CTCSS tone.
= Full Time or Always ON (Static talk group). This talk group is always available for monitoring and access.

PTT = Requires a PTT to activate the Talk Group. (Dynamic talk group).
Talk Group must be activated by a user PTT and remains active for 5-15minutes after a local user keys the repeater.
3 Second Pause -
Very important
Digital network signals have a "Digital Delay". It could take just over a second for your audio to process through the global network. Leave a 2-3 second courtesy pause between transmissions to allow for someone to enter a conversation.
Local 2 - Calling Channel
Not for general "Rag Chewing". Calls are heard through up to 70 repeaters in K4USD network. 
After contact is made, it is suggested that long conversations be moved to a secondary Talk Group.
Local 8 - Penn Mar
Talk group shared by PA and MD repeaters.

Local 9 - Your local repeater Only.
PA TAC - (31421) Preferred Local secondary channel for S Central PA.
PA TAC is on TS1 which frees up TS2 for other local traffic on the repeater. It is available on most South Central PA repeaters and all Hotspots.
TAC  310, 311, 312 - Preferred National secondary channels.
Available to all repeaters and accessible through most repeaters and Brandmeister Hotspots.
Parrot / Echotest - TG 9998, TS 2
This is a network echo test that allows you transmit up to 90 seconds, and after a 5 second pause, will repeat back to you exactly what the network users hear on their end. Excellent for audio level and distortion testing.
Simplex Frequencies
In the South Central PA area, the simplex channels of choice are:
  446.075 MHz - Primary Simplex
  446.500 MHz - Secondary Simplex
446.075 MHz    TG 99    TS 1    CC 1
446.500 MHz    TG 99    TS 1    CC 1

Note:  The original MD DE NoVA SCPA has been split into two regions. Information on the split can be found   HERE.