DMR Networks: An In-Depth Guide into DMRGateway Routing Rules

one hello i'm lucas my call sign is alpha echo zero lima india i do most of the radio sky bridge programming uh plug and play unit stuff like that uh ron had a meeting scheduled so he asked me to fill in um we'll start out with shout outs um i see ron henry from pilwaukee wisconsin uh nw scuba llc from idaho aaron cornett from stanton kentucky bill kkford pal from florida jeff robinson from north richland hills texas bill from virginia rodney myers from knoxville tennessee um looks like there's plenty of others on there too but thanks for tuning in and i guess we'll go ahead and get started so today i'm going to talk about dmr gateway routing rules this was referenced briefly in a previous video on doing like the multiple networks and everything this is going to be more of an in-depth look on how the rules actually work and stuff it's useful to know because this is basically what lets you change networks without having to reconfigure your hotspot each time this lets you just hit a button on your radio and now you're in a different network basically now if you do want to try this just remember to back up your config first because it can stop working right if you change something and it doesn't agree with your configuration so so let's get started so the function of the hotspot is basically to sit in between the internet and your radio so your radio is sending dmr packets to it we refer to those as rf packets just rf and then the internet is net it's just short for that and so this is kind of like just a bridge between the two things and um a lot of the action that happens is transparent it's you know controlled by the configuration files and all that stuff um and basically there's rules that control where those uh packet uh where those packets go and stuff so in a way it kind of acts like a computer router where it's telling it where to go and stuff so in general if you're sitting at home with your hot spot and you just got your radio this is kind of for steering your radio to talk to a bunch of different networks on the other side of the internet so this is just kind of saying okay where to send the traffic this is mainly used with the whole adding the prefix on the beginning of it because sometimes brandmeister and tgif they have a little bit of overlap with the names or the numbers of their talk groups so like parrots 9990 for both of them and like disconnects 4000 and there's a bunch of other overlaps so um yeah and there's basically six different rules that control this and this is a little excerpt from the last video that shows what i'm actually talking about here and so yeah i'm going to explain the rules so uh tg rewrite that's talk group rewrite that basically lets you um it takes one talk group id like with the prefix added and it translates it to what it really is on the other side so if you added those like a four with some zeros in front of something this is how you can actually remove that and once it's gotten to the right network and it'll actually go to the right place and so this this it can also be used to change the time slot but with uh sky bridges they're simplex devices so there's we only use timeslot too so that doesn't really apply to us um and this rule applies to dmr frames going both directions meaning like from the radio or from the internet it can be applied to either of them so basically this um this takes it and um the yellow arguments in this you don't have to really worry about because that's going to be two but the blue is basically the top group that's in your code plug that you have programmed and then the other blue is what it's actually going to be translated into and the red is the range so basically it's looping through the whole thing that number of times and so you can translate a whole range of numbers to what they really need to be so you would uh you would you would basically um have like for example um four zero zero zero one it would knock that prefix off once it's already in the network and so on there's a pc rewrite which is basically the same thing but it works on private calls so um this would be like for parrot um if you just did the regular parrot 9990 the rules wouldn't know what to do with it it would just go to the default which is usually brand meister so you wouldn't get a reply from tgif you'd get a reply from bandmeister instead so this allows you to add the prefix to it so that way in your rules you'll see oh this doesn't belong in a the brandmeister part and it goes down to the next one and the next one until it sees tgif and then it uh sees that oh there's a rule here for 400 9990 and so it'll whack that off leave you with a 9990 and send it to the right place when it's on tgif and it's the same syntax basically as the other one it's just for private calls instead source rewrite this um this applies to packets that are coming from the internet and so this is basically a way to add the prefix back onto something so let's say you did a parrot for example and you want to hear it back from tgif well it's going to come back as 9990 and your normal configuration is going to see that as brandmeister so this adds the prefix back on so now your radio is going to actually hear it because it's going to have that prefix added back on to it and so this basically reverses what you did in the first place hey lucas yeah does this only apply to the sky bridge this applies to any hot spot but the sky bridge is simplex because there are duplex hot spots out there and so you can actually get a little bit more involved with these rules by changing time slots and stuff um the sky bridge is simplex so um you can pretty much just put a two in the time slots and everything else applies so yeah any any dmr hotspot this applies to though type rewrite this is for i think certain networks they do like a group call for parrot and stuff like um and so this enables you to change it to a private call before it actually gets sent to the net so this works on packets coming from the radio and this converts it before it gets sent out to the internet and then so when it comes back it's seen as a private call how many prefixes can you have um you can do um i believe you can do up to six or seven different networks it's whatever the limit of networks is on dmr gateway i don't remember that off top of my head but um that's the number of prefixes you can have so let's see so the uh next one here paso tg the pass all talk groups um this basically um it's like a catch-all it's like a miscellaneous category so really you would only put this in one network and this is just kind of where packets that don't have a rule that applies to them they would just get sent here so basically you can have everything that doesn't know what to do with go through brandmeister or go through a different one and the only specification there is the time slot which is going to be two if you have a sky bridge so yeah it's really just a catch all for others basically and pass all pc is the same thing it's just for private calls so it's the exact same thing just private calls instead and um if you want to know more about this and other things g4 klx and other contributors that made dmr gateway this is on a github and there's explanations for all the rules and it's a great place to get some information um so that's pretty much it for the presentation portion um if anyone has any questions we'll go ahead and answer those can you uh show us how it works with your skybridge oh that's right um here's a pretty much this is actually i'm logged into the sky bridge here and i'm i just went to the expert configuration dmr gateway just like in the previous video so this is basically how it's going to look in real life and this even has some rules that wouldn't necessarily apply to the sky bridge so time slot 1 is not used so those technically don't even have to be there so um right here so this pc rewrite 2 right here this is used to basically so if we go back to the code plug actually see right here where there's a prefix added to this just like in the previous videos and everything and you can do it for anything i just did a few there but that was done in the code plug and so uh that way it can work with these rules to change it to what it needs to be and so this is something here where this would take the 400 that we added to parrot and it would whack that off and turn it to regular one but notice how this is the dmr network 4 and tgif network so basically that 400 9990 went through all the listings if we go up here um i just put that there as little divider it doesn't actually do anything um if we go through all these listings network one network two network three it doesn't have any rules that apply to that four zero zero prefix so it goes down to here now there's rules that match it and now if it's a private call on that pc rewrite now it's gonna say okay four zero zero nine nine nine zero that's a match let's whack that off and send it to the network but now since we're inside tgif it's going to send it to parrot while it's in tgif instead of going to brandmeister and so this type rewrite once again is just a converting group calls to private calls if let's see here this is for the talk groups so this basically takes pretty much any talk group that's the whole range of all the talk groups in tgif so this goes through them they have that four and then the padded zeros added to it and just converts them to what they need to be so that way they don't get mistaken as brand meister talk groups and go through that network the source rewrite like that's basically just to add the prefix back on notice how right here this has the 9990 but this adds the 400 on front of that so and of course we wouldn't use the time slot 1 but that adds that back on before it gets to your radio and so that's really the main function of that and then this once again is for the talk groups so we wouldn't use time slot one but this is for the talk groups and so this would go from one to nine nine nine nine nine and each time it would add that four and all the zeros onto it so it would convert it back into where your radio sees it as the tgif talk group instead of the brand meister talk group then all this other stuff is just network configuration but yeah that's pretty much how it works i don't know i'll go ahead ralph schultz asks uh or ralph shoots can you put multiple dmr ids on the id line i believe it only works with one but i'm not entirely sure there um oh that's right um so uh ralph schultz asked can you put multiple dmr ids on the id line um i'm not totally sure on that i think it just does one but i only have one dmr id myself so i haven't actually experimented with that but it'd be something worth trying i don't know if it worked though um let's see here this is too advanced for me okay so jeff robinson says this is too advanced for me today but i still need to add power to my radio [Music] um i still need to add power to my radio i'm not sure exactly what you're talking about there i'll probably have to look at that later to see what that's talking about did anyone else have any questions though covering um these rules or anything to do with um yeah just multiple network routing and stuff let's see i agree with jeff this is wait okay so jake peterson says i agree with jeff this is way too advanced for me i am new to dmr and i am starting to ask myself what did i get myself into here well this isn't like mandatory stuff this is something that let's just say that you want to access talk groups in multiple networks and stuff you can this lets you basically able to do that all at the same time without having to reconfigure your device each time that's really the only reason you'd use this so if you're happy with brandmeister and that's what you want to do or you want to just use tgif or dmr plus or whatever other ones you want to use if you wanted to stick to one then there's nothing wrong with that and you don't have to ever do this this is more just if you wanted to have it all basically aaron cornett says our cornet says thank you very much for enlightening presentation aaron kk4dpm well no problem i hope that i've answered some questions and i hope that if there are more questions that i can answer them jeff robinson wants to add a 12-volt power supply a 12-volt power supply to his radio is that referring to an order maybe um y'all have to look at that whenever i look at the orders and everything and i'll definitely address that once i get done here um so we ended a little early here if there was any you know any little thing that these you know beginner level stuff they wanted to see we could show them real quick um is there anything that someone you would want to see um an example of how to do that would be that i could do here like with what i have here i guess uh david torkelson says ron was putting a five in front for the top group does the number matter oh yeah um that number is arbitrary it doesn't really matter what that number is but i use four and a lot of people use four simply because this is the dmr network for so this makes it the least amount of confusion to know what network and your rules it applies to so that four prefix to me that just means dmr network four you could have used five you could use nine eight as far as it doesn't really matter what you used it's just arbitrary really can this be set up as us okay so ron langner says i was late getting on but can this be set up as a script or a shortcut um i'm sure that i'm sure you could actually make something that would do this this is simply a text file actually that's in the uh and it's in the hotspot so this is a text file that can be edited and that's essentially what this is on the web so if you knew how to write scripts you could make a script that would generate this with some parameters there might be something like that available i'm not sure but yeah that's uh it's certainly possible uh craig howe says thanks for the last explanation it makes more sense now about automatic connections to multiple networks oh thanks craig um yeah it's it's it's really just um it's really just a like a mask basically so your radio your radio is programmed with something you're basically putting your encoding information into the talk groups and um you're telling it with rules on the dmr gateway file what to do with that encoded information so yeah it's it's it's not really um a whole lot of stuff it's it can be a little complicated with all the numbers and stuff and i just hope that maybe this these are this is a little bit more clear after going over this and everything um what live stream would they watch with ron that this subject kind of relates to um there's one i think it was two or three weeks ago it was on a tgif with multiple networks it was where he he added the five prefix and that's the one that um david torkelson was referencing um it was um yeah it's basically where it was like copy and pasted into it and then this is how and so this is just kind of like zooming in on that and seeing how it all works and stuff uh is this is this the easiest way to talk to multiple networks um i would say so i would think it's kind of like once you get it set up once it's set up right it's kind of like set and forget where you so this is technically harder to set up initially but in the long term it's the easiest and whereas you could just change you know in the regular configuration you could uh you could change this right here to be whatever you wanted to be like tgif or something but then every time you wanted to switch networks you'd have to log into your sky bridge and do that each time so in the long term that would be more work so this is the easiest option for um the long term basically but yeah if there's no more questions um i guess uh that's it see ralph ralph shoots says this is a text file that's simple to cut paste and edit yeah it is literally just text it's just a configuration file and there's you know programming that reads the stuff in the file and does all the heavy lifting this is just telling it what to do basically you're just writing the rules but yeah i guess there's not really a whole lot more to say about it so um that's it for the artsy um let's see here um thanks everyone for watching ron will be back next week and 73s to you

Channel: BridgeCom Systems, Inc

Views: 4,525

Keywords: Amateur, radio, dmr hotspot, radio hotspot, DMR networks, DMRgateway, dmr radio guide

Id: y9T6FAJM3mE

Length: 21min 37sec (1297 seconds)

Published: Wed Mar 10 2021