880 vs 800 (was: Re: [DSTAR_DIGITAL] Signal Distance)
John is right on the money here. - Tactical Call Sign SOP: A tactical call sign is entered in the 4 digit comment field after a station's legal call sign: MY: NAØG /EOC Such tactical calls can be readily pre-programmed in the MYCALL memory of most radios. With this procedure, your tactical call sign will appear on the screen of anyone receiving, conveying the information in an efficient manner, while not interfering in the D-Star routing protocol. Stations using anything other than their legal call sign in the call sign field should be informed they are are using BAD PRACTICE. - Just my 2 cents. The comment field is really wide open for transmitting all kinds of stuff. I might have the APRS code for my home: NAØG//- Others have suggested ARRL numbered radiograms: NAØG/RL16 (Property damage very severe in this area). And so on. The point is that with D-Star this comment field goes out with each press of the button, so why not use is for something useful? 73 de NAØG Gene Here is my thought on this. Radios should be identified by their official callsign (and optional designator character), tactical / special event callsigns can be put into the 4 char comment, on voice, or in the message field for SMS. Certainly, the local repeater could be allowed to pass tactical radio callsigns, but across the network you are just asking for routing errors if more than one station decides their callsign of the day is TAC1 or BASE or EOC (mitigated by registration, but then only one station in the entire network can be TAC1, in a dynamic addressed network it would be anarchy). I know you know it, but the callsign is the routing address in D-STAR. The filter would have to be pretty loose but keep it to looking something like a callsign and definitely could filter certain profane words. John Hays Amateur Radio: K7VE j...@... [Non-text portions of this message have been removed]
Re: 880 vs 800 (was: Re: [DSTAR_DIGITAL] Signal Distance)
At 04:31 AM 5/16/2009, you wrote: Has anyone actually tried that? I could brush up on my Novell skills from 1992. Don't see why it wouldn't work. :) Never saw a more stable fileserver in my entire IT/telco professional career as a Novell 3.11 server. :-) I certainly can't argue with that one. I remember the stark contrast when the company I worked for at the time switched from Novell 3.11 to Windows NT. The Novell server was so stable that I only recall one or two occasions in 2 years when anyone had to restart it. It was an old P90 box that just ran and ran, and ran, and ran. :) The DOS client was a different matter, if the network connection dropped for more than a fraction of a second, it was hosed. That was fun in the days of 10Base2 networks. ;) 73 de VK3JED / VK3IRL http://vkradio.com
Re: 880 vs 800 (was: Re: [DSTAR_DIGITAL] Signal Distance)
At 01:50 PM 5/16/2009, you wrote: They each have their purpose, we just need better gateway software. Agreed. If implemented right, linking and callsign routing could coexist, if the software was written to allow this mix. In addition, controls to block either would be handy for certain uses. 73 de VK3JED / VK3IRL http://vkradio.com
Re: 880 vs 800 (was: Re: [DSTAR_DIGITAL] Signal Distance)
At 01:16 AM 5/17/2009, you wrote: John is right on the money here. - Tactical Call Sign SOP: A tactical call sign is entered in the 4 digit comment field after a station's legal call sign: This would seem to be the most sensible way. 73 de VK3JED / VK3IRL http://vkradio.com
[DSTAR_DIGITAL] Tactical Call indication
I have worked many public service events disaster preparedness exercises. One would have to be very creative to get meaningful tactical calls with only 4 characters available. I'm often Lead, so that's fine, but how about all the numbered Aid Station, Event, Mobile, Safety, Bicycle, County, Field Team, Hospital, Siren, Support, Shadow, etc. tactical calls? When using APRS, we will use the Tactical call in the regular call field and put the FCC call in the status text, which is beaconed every 10 minutes. I haven't tried it, but checking my ID-92AD manual, it seems that a user defined 20 character message can be sent with every PTT activation, so maybe that method could be employed when needed. 73 de Dennis KD7CAC On May 16, 2009, at 4:33 PM, Tony Langdon wrote: At 01:16 AM 5/17/2009, you wrote: John is right on the money here. - Tactical Call Sign SOP: A tactical call sign is entered in the 4 digit comment field after a station's legal call sign: This would seem to be the most sensible way. 73 de VK3JED / VK3IRL http://vkradio.com [Non-text portions of this message have been removed]
Re: [DSTAR_DIGITAL] Tactical Call indication
The 20 character message works very well and would be a good place to do Tactical if you need more than 4 chars. The issue for the callsign is that in D-STAR the callsign field is more than identification, it is part of the addressing scheme. Whereas in APRS you often are just reporting position and status, it is fundamental to D-STAR network routing to have universally unique addresses (e.g. your legal callsign) in the various callsign fields - it is global in nature. If you are *not connected* to the gateway network then it really doesn't matter. Dennis Griffin wrote: I haven't tried it, but checking my ID-92AD manual, it seems that a user defined 20 character message can be sent with every PTT activation, so maybe that method could be employed when needed. 73 de Dennis KD7CAC -- John D. Hays Amateur Radio Station K7VE http://k7ve.org PO Box 1223 Edmonds, WA 98020-1223 VOIP/SIP: j...@hays.org sip:j...@hays.org Email: j...@hays.org mailto:j...@hays.org [Non-text portions of this message have been removed]
