Michigan Digital Traffic Net
Michigan Digital Traffic Net S.O.P.
Operating Procedures for the Michigan Digital Traffic Net
Description : The MI Digital Net is a directed section level net of the ARRL National Traffic System. It meets Tue. Thur.& Sat. at 2000 Hrs eastern time on 3.583.0 MHz (or 7.043.0 MHz as alternative),USB for the purpose of passing formal written traffic into, out of the State Of Michigan and for conducting training in the use of digital emergency communications.
Net Manager. The Michigan Section Traffic Manager will nominate a net manager to the section manager. The net manager will be responsible for:
• Day to day operation of the net
• Establishment of standard operating procedures
• Maintaining net discipline
• Assignment of net control stations
• Submission of monthly net reports to the Section Traffic Manager
• Other duties as assigned by the section traffic manager
Standard Operating Procedures:
1. The net will use the Narrow Band Emergency Messaging System (NBEMS), which includes the Fldigi, Flmsg, Flwrap and Flarq programs as the standard for all net operations.
2. The Olivia mode with 8 tones and 500 Hz band and 1000 Hz on the waterfall will the mode for calling the net, taking check ins and keyboard to keyboard contacts.
3. MT 63 1k mode will be the primary mode for passing traffic and bulletins. (Band propagation may effect the efficiency of this mode and may require that Olivia mode be used.)
4. Configuration. All net members should use the most recent versions of the NBEMS software. Software updates can be downloaded at www.w1hkj.com.
• Go to configuration>Misc>Text capture Insure to enable detection and extraction and auto open wrap folder.
•Olivia. Set the configuration as follows: configure>modem>Olivia and select 500 KHz bandwidth and 8 tones, click 8 bit extended and then save.
•MT 63 1k. Set configuration as follows: configure>modems>MT- 63 set 64 bit (long) interleave and extended characters and long receive integration, Transmit Lower Start Tone, Transmit Upper Start Tone, then save
•Go to configure>ID and under Reed-Solomon ID (Rx) check only "Mark previous frequency and mode" and make sure Olivia and MT63-1000 are selected as receive modes and transmit modes.
5. General Procedures:
• At the start of the net the Net Control Station will send a "tune" signal for about 5 -10 seconds using Olivia 8/500 with a 1000hz off set. To do this Click on the "tune" button on the upper right of the fldigi screen. Each net member will have their Olivia waterfall centered on 1000hz or 3.584.0 and leave it there. Adjust your rig's VFO until the received signal is centered in the 500hz band width. This way we all should be on the same frequency.
• Send the following net call and preamble.
...Calling all stations to the Michigan Digital Traffic Net
...This directed net meets Tuesday Thursday and Saturday at 0000 Z on or about 3583 KHz
We are a Michigan Section Level Net and are a active part of the NTS of the ARRL.
All stations are welcome and you need not bring traffic to the net in order to check in.
Please have your TxID/RxID turned on so you can auto-track any mode changes made during the
...QNI and Comments will be done via Olivia 8-500
Traffic will be handled via MT63-1KL if band conditions permit.
...QNI Procedures and information about the net can be found at WWW.MIDTN.WS.
...NCS for this session is (Your Call) My name is (Your Name) and my QTH is (Your QTH)
Stations not listing Traffic may leave at anytime, stations listing or taking traffic may request QNX at anytime.
..I will now standby for ANY EMERGENCY OR, PRIORITY TRAFFIC FOR THE NET? CALL NOW K.
..I will now standby for stations with or without traffic Call now...
Are there any relays ?
• Stations checking in should be careful not to double with others. Please listen before transmitting and space your
• After all formal traffic is handled NCS will ask each check in for a comments.
• After comments the NCS will ask for any final checkins and any further comments for net before securing the net.
The Michigan Digital Net is a work in progress so this document is meant to be changed as we learn more and more about digital communications. We welcome your input and suggestions as to how we can better run the net.
Thanks Dave W8DW and Bob K8RDN