On Sat, Jul 4, 2009 at 4:45 AM, Jason KG4WSV<[email protected]> wrote: > On Fri, Jul 3, 2009 at 10:15 PM, nj2e<[email protected]> wrote: >> So can I write a tactical call to >> a T2-135 or not? > > Not. you can only use a valid AX.25 address; up to 6 case-insensitive > alphanumeric characters optionally followed by a dash an a number 0 to > 15.
Well, technically the answer is YES, not NO. http://aprs.fi/splstd This is an OT2m running attached to a Motorola SM-50 repurposed into amateur service. The T2-135 for the purpose of this discussion is an identical unit. You can set a tactical callsign into the unit, as long as it fits within the constraints of the AX.25 address limitations. The FCC assigned callsign is embedded in a packet that gets sent every 10 minutes for all you armchair lawyers. SPLSTD>APOT21,WIDE2-2:!5321.55NS11254.15W#PHG5560W3, ABn, Spilstead VE6SRV Tactical callsigns can be used in any APRS device... here are a couple local digipeaters running on KPC-3s. EDMNTN>APN382:!5332.70NS11329.65W#PHG65602/W3, ABn, Edmonton VE6SBR PIGEON>APN382:!5257.28NS11352.50W#PHG5460/W2, ABn, PigeonLake VE6PLP EVNBRG>APN382:!5333.68NS11503.42W#PHG5530/W3, ABn, Evansburg VE6YER WHTCRT>APN382:!5401.95NS11543.18W#PHG57302/W3, ABn, Whitecourt VE6PP Tactical callsigns are preferred on the local digipeaters, as it makes it very easy to visualize the path taken by a packet when observing the raw packets received. VE6GC>BEACON,ANTLER,PIGEON*,WIDE2,qAR,VA6KRM-10: VE6GC>GPSLK,MKGBRD,ROCKYD,WIDE2*,qAR,VA6KRM-10: VE6GC>GPSLK,ROCKYD,EVNBRG*,WIDE2,qAR,VA6KRM-10: It's much easier to visualize where these packets went using tactical calls. The first through Antler Hill, then Pigeon Lake, the second through Mockingbird Mountain, then Rocky Mountain House, and the last through Rocky Mountain House, then Evansburg. You'll have to look up VA6KRM-10 to figure out where Kerry has the i-gate, but if it used a tactical callsign such as EDMGTE or such, it would be easier to know that all these packets were gated through Edmonton. Tactical call are much easier to read than VA6ONE, VE6PLP, VE6GAB, VE6DDD, and VE6YER, and then making the appropriate callsign to location translations in your brain. As mentioned previously, sending an APRS object might be a better fit for this task. You have a couple more characters available, and are not as limited on the format of the name used. Here are some repeater objects sent from the digipeaters that drop APRS objects on the map showing local repeaters, which are also TUNEable with the Kenwood D710. You could send the local Hamfest object out with location information, the local talk-in frequency, and in the comment section, post the date and time information. All of this would show up on the APRS screens, and be able to be used by the APRS user to be informed about and get to the hamfest. EVNBRG>BEACON:;146.64-QC*111111z5338.68N/11400.00WrR50k VE6QCR PIGEON>BEACON:;146.88-SS*111111z5255.83N/11351.13WrR60k VE6SS EDMNTN>BEACON;444.80+SB*111111z5332.70N/11329.65WrR50k VE6SBR Tell me that something is impossible, and I'll find a way around it! 8) James VE6SRV
