Simplex communication among a large, geographically dispersed group presents certain challenges. The following procedure should be followed during simplex nets. It may change as lessons are learned. It is very much a work in progress and any constructive criticism is appreciated. It may look complicated, but after a simplex net or two, it should make sense. Please communicate questions or concerns to Gary, N2WGR, at email@example.com.
This process is similar to a phone tree, where one person will call four people, then those four people will each call four other people. The tree continues until everyone in the organization has been called. The difference here is that we will not know who is in our tree until we are on the air.
Important: Each station should check in with only one other station as detailed below. Don’t check in with every station you hear requesting check-ins. There will be some overlap so pick one station to check-in with and stay with that station for check-ins and message relays..
- Net Control will conduct a primary check-in.
- Net Control will then acknowledge the stations (s)he can receive.
- Net Control will then conduct a roll-call of each acknowledged station (the First Tier stations), and ask those stations to conduct a check-in of Second Tier stations (those are stations that First Tier operators can hear, but Net Control cannot),
- Each First Tier station will in turn relay its check-ins to Net Control.
- If necessary, each Second Tier station can repeat the process, picking up Third Tier stations.
- The process will repeat itself until all operators are checked in. Message traffic can then be passed and relayed using the same method.
KD2BQM is Net Control. During check-ins he can hear three stations: N2WGR, K2WNW and KC2YAY.
Net Control will then ask N2WGR to request check-ins. He is able to communicate with WA2FTW and K2ARN. He relays those check-ins to Net Control.
Net Control will then ask K2WNW to request check-ins. He will relay those he is able to communicate with to Net Control.
Net Control will then ask KC2YAY to request check-ins. He will relay those he is able to communicate with to Net Control.
If necessary, WA2FTW and K2ARN will repeat the check-in process with stations they can hear but Net Control and N2WGR cannot. They will relay check-ins they hear to N2WGR, who will then relay them to Net Control.
As necessary, K2WNW and KC2YAY will repeat the process with their Second Tier stations, then relay those check-ins back to Net Control.