#2bus signal path series

In the N-N the first number is the number of total hops and the second number is a counter. A path of Wide1-1 will go one hop and Wide2-2 will go out 2 hops.

So in talking about paths, we use a WideN-N designator, where N is the number of hops we want the packet to travel. But instead the purpose of the path is to get your signal out well enough so that it’s heard by an Igate and funneled to the APRS internet stream. In my introduction to APRS video i mentioned that APRS is not a long distance or DX form of communication, and you don’t want to light up every digipeater in a 500 mile radius. The Path is the route or distance an APRS packet will propagate before is expires from the network. The biggest change in the new paradigm was how we specify our packet path.

The new paradigm consisted of several small changes, but in the long run contributed to a 5 times improvement in local reliability. But this soon led to congestion and by 2004, Bob Bruninga, WB4APR, advocated for a new APRS path paradigm. Stations would use long paths and relays in order to propagate their packets. Path Settingsīack in the 1990’s, when APRS first gained popular acceptance, the network had large coverage gaps and Igates were few and far between. The only guidelines with SSIDs is that they give a quick visual clue of the purpose of a particular object without the need of graphical icon or verbose description. Now these SSID numbers aren’t hard and fast rules, and you could potentially use any SSID for your purpose that you choose. That lets me keep three stations on the air with one callsign and they become easy to differentiate on the map what their purpose is. So in my case, I have no SSID for my home station, a -7 for my Yaesu handheld and any tracker boxes I may use will have a -9. 15 is for any other station, although it could also be use for an additional tracker, digi, or mobile High altitude balloons will use APRS for tracking and telemetry.

#2bus signal path series

7 Reserved for handhelds such at the Kenwood D7 series or Yaesu VX8R That gives you the facility for up to four digipeaters under your callsign.

So to break things down, a home station will have no SSID or an SSID of 0.ĭigipeaters are to use the SSIDs of -1 through -4. The reason this is the case is that doing so made it easy to differentiate between a home station, digipeater, and mobile by using consistent identifiers. APRS has the facility for up to 16 different SSIDs and certain numbers have been allocated to mean certain activities. The SSID or Secondary Station Identification is a numbered suffix that is added to your callsign to indicate that it is an additional station. But if you are running multiple devices, say a home station, mobile or a tracker, you will run into network conflicts if they both have the same callsign. Of course you will need to use your callsign in your APRS activities. A link to it can be found in the upper corner of this video and the video description below. My first video on APRS gave an overview of the mode, so if you are totally new to the Automated Packet Reporting System, you may want to watch that first. So in this video we are going to dig a little deeper into the APRS protocol and talk about three important topics: Callsigns and SSIDs, Path Settings, and Beaconing or your beacon rate.