Last updated 2023-01-31. Please send feedback to dpk at randomnotes.org.
SeattleDMR.org is an amateur radio Digital Mobile Radio (DMR) network created to provide an EmComm focussed DMR system to the Greater Seattle and King County region. This network platform also provides an opportunity for experimentation with emerging DMR technologies. Seattle DMR member organizations operate 4 repeaters at hardened sites in the Seattle and King County area. The repeaters are interconnected by HamWAN IP links to a SeattleDMR operated bridge running HBLink3 and the HB_Bridge/IPSC_Bridge interface software. Please refer to the SeattleDMR.org Bridge Design for more details.
SeattleDMR is happy to welcome the Boeing BEARS as the newest SeattleDMR partner!
This presentation from May 2020 provides
an overview of the network, its motivation, and features that make it unique and
useful to our community.
|Repeater||Frequency||TX Offset||Color Code||Details|
|Seattle Central||440.775||+5.000||CC2||Capitol Hill, Seattle - WW7PSR - Sponsored by Puget Sound Repeater Group. See the PSRG DMR page|
|Seattle North||441.025||+5.000||CC2||Lake Forest Park Reservoir, north of Seattle - W7ACS - Sponsored by Seattle Auxiliary Communications Service|
|Seattle South||440.975||+5.000||CC2||Mrytle Reservoir Park - W7AW - Sponsored by West Seattle Amateur Radio Club.|
|Seattle East||442.075||+5.000||CC2||West Tiger Mountain, east of Seattle - K7NWS - Sponsored by Boeing Employees Amateur Radio Society|
SeattleDMR.org interconnects to both the Brandmeister and Pacific Northwest Digital DMR Networks. The table below identifies the specific talkgroups enabled on SeattleDMR.org repeaters.
The Link talkgroups in SeattleDMR.org are unique and can be used as additional talkgroups within SeattleDMR, or dynamically patched by a system administrator to talkgroups in other interconnected DMR networks, as needed.
For example, SeattleDMR could interconnect the Link 1 Talkgroup to a talkgroup in a different DMR network, translating talkgroup IDs at the SeattleDMR bridge and instantly enabling SeattleDMR users to communicate to that distant talkgroup without changing radio codeplug programming of SeattleDMR users who may be already deployed in the field. Please include the Link Talkgroups in your radio codeplug.
|PNW Rgnl 2||31771||TS2|
These codeplugs include all the SeattleACS Analogue FM channels and a robust set of simplex and data channels.
Note: The repeater channels include CTCSS on receive where it is known to be enabled and we have personally tested that it works. This eliminates the occasional interference we frequently encounter on VHF and UHF here in Seattle's urban landscape.
Codeplug and related files for the Anytone-878 supporting PNW-DMR and Seattle Core repeaters can be found here.
Codeplug and relate files for the Connect Systems CS-800D supporting PNW-DMR and Seattle Core repeaters can be found here.
Using pre-built DMR codeplugs:
I have created these brief instructions for those using the pre-built codeplugs above:
Using pre-built DMR codeplugs.pdf
Creating Customized Codeplugs:
I have needed to create codeplugs that combine PNW-Digital DMR systems with repeaters and frequency information from other organizations. I hate manual toil so I have created this procedure using available tools, particularly the Anytone Config Builder, from Andrew Dickinson, K7ABD and N0GSG's Contact Manager program for Windows. Instructions for creating identical codeplugs for the Anytone and CS-800D with no manual entry can be found here. This is the process I used to create the codeplugs on this website and for Seattle ACS. Besides the community files from PNW-Digital, these files will be needed:
|Analog-ACS-addon.csv||Additional Analog FM channels for Seattle including the ACS VHF and UHF channels for voice and data (Winlink) in 4 separate zones|
|Digital-Repeaters-Seattle-addon.csv||Additional DMR repeaters for Seattle. This file needs to be merged into the PNW-Digital file. You add the row and then get the column content matched up|
|Digital-Repeaters-Merged.csv||This file is an example of the merged result and is ready for upload to Config Builder.|
|Talkgroups-Seattle-addon.csv||Additional talkgroups used locally in Seattle and supported by SeattleDMR.org and associated repeaters|
|Talkgroups-Merged.csv||This file is an example of the merged result and is ready for upload to Config Builder|
|merge-repeaters.py||This Python script with take 2 ConfigBuilder Digital Repeater spreadsheets and merge them. Output written to Digital-Repeaters-Merged.csv.|
|merge-talkgroups.py||This Python script with take 2 ConfigBuilder talkgroup spreadsheets and merge them. Output written to Talkgroups-Merged.csv.|
|build-contacts.py||This Python script downloads all DMR contacts for US and Canada. Output written to digital-contacts.csv. If you want a different subset of contacts, you will need to alter this script.|