Join us Monday, October 9th on Brandmeister talk group 3126 from 7:45pm ET – 8:30pm ET for the DMR Tech Net.
We will be discussing the differences between a dynamic talk group versus a static talk group.
Tom N8TJ, Stan WB8QJZ, Steve KC8WXM, & Dana KC0MYP,
The DMR Tech Net starts at 7:45pm ET on Brandmeister Talk Group 3126 (statewide Michigan) and runs until 8:30pm ET.
Stay on TG-3126 to join the Michigan One DMR net (the longest running Michigan DMR net) at 8:30pm, hosted by Dustin N8RMA.
We are branching out to the TGIF network. The DMR Tech Net team has our own TGIF talk group 31268 that you are welcome to use. We’ll leave the lights on and best of all, there is no 10-minute limit!
https://tgif.network/talkgroups.php
Upcoming DMR Tech Net topics
Monday, October 16, 2023 from 7:45pm ET – 8:30pm ET on Brandmeister’s DMR Talk Group 3126:
- Static talk groups vs dynamic talk groups. What’s the difference between them? How to you use them? Are there any rules you have to follow?
Monday, October 23, 2023 from 7:45pm ET – 8:30pm ET on Brandmeister’s DMR Talk Group 3126:
- Have you wondered what the M17 digital network is? We have Chip Cuccio WØCHP to talk about and answer your questions about M17. He’ll also explain the improvements & cool things available with his WPSD dashboard for your Pi-star hotspot.
Monday, October 30, 2023 from 7:45pm ET – 8:30pm ET on Brandmeister’s DMR Talk Group 3126:
- Who is John Miklor? Do you use his website to review DMR products? John will join us to discuss his website and DMR products. https://www.miklor.com/
*This is our tentative schedule and it can change*
We have created a website at https://dmrtechnet.net/ for you to keep up with our DMR Tech Net topics.
If you want to join our email list, send an email to Subscribe@DMRTechNet.net with “subscribe” in the subject line.
We will send out information about our weekly DMR Tech Net topics no more than once or twice a week.
Please check out our website, https://dmrtechnet.net/, and share this newsletter with other DMR users.
Michigan Brandmeister statewide Michigan DMR talk groups:
- 3126 Statewide Michigan (10-minute limit except for nets)
- 31260 Michigan WX ARES EmComm
- 31261 Mi-5 Statewide 1
- 31262 Mi-5 Statewide 2
- 31263 Mi-5 Event 1
- 31264 Michigan TAC
- 31265 Mi-5 Event 3
- 31267 West Michigan Talk Group
- 31268 UP (Upper Peninsula) of Michigan
- 31269 West Michigan Technical Group
Guide to Understanding Static & Dynamic Talkgroups
Some of the most common questions I see posted here are regarding dynamic & static talkgoups, and what that means for actually operating your DMR radio. It’s a concept us old grizzled DMR veterans know so well, yet we don’t often stop to think about the new operator trying to understand an unfamiliar concept within the mode and hobby.
I will attempt to break down these concepts and place them into real world scenarios, in the hopes that future operators can read and understand how they work. I am not a DMR expert, but I am a big fan with some decent experience in the mode and some great teachers.
About me – I own and operate a DMR repeater in the state of Michigan, a Motorola XPR8300 running on UHF. I’m one of the NCS for the MichiganONE Statewide DMR Net and have a dozen or so DMR radios. I’ve had the pleasure of traveling around the state to give presentations on DMR and why it’s the best mode in amateur radio hands down.
Overview
First of all, it’s important to understand that the concept of dynamic or static talkgroups exists only within the scope of a repeater or hotspot. From here forward I will generally refer to these as just repeaters but understand it’s interchangeable. Anything I discuss about repeaters is also applicable for your personal hotspot, which is just a mini repeater of sorts. This goes without saying, the concept of D & S is not applicable for simplex operation.
Second of all, it’s equally important to understand that the availability of a TG (e.g. dynamic or static) is simply how it’s configured on a repeater. In other words, the concept of a dynamic vs static has to do with HOW and WHEN a talkgroup is active on a repeater. It does not have any bearing on how an operator transmits to a TG, just on when they can hear a TG on a repeater. We will however discuss later the impact that has in the context of transmitting.
- Only pertains to repeaters / hotspots
- Refers to how a TG is configured on a repeater
- Only pertains to how the operator receives TG traffic
Static
A static talkgroup is one that is “always on / always active” on a repeater. This means that if a TG has traffic, your repeater or hotspot is transmitting that outward for you to receive. These cannot be turned off by users, and requires the repeater admins to make changes. This has several uses, namely as a way to link several repeaters together to form a wider area network, or to signify a TG has some kind of importance to a repeater.
- TG is “always on”
- Cannot be disconnected by users
- Easy way to always monitor a TG
- Great way to link repeaters over the network
Dynamic
The alternative to static, a dynamic talkgroup is one that is “user activated”. It will not be active until a user selects the TG channel on their radio and “keys up”, thus initiating traffic. This TG will now be active, but only for a limited time. Generally speaking, a dynamic TG is active for 15 minutes from the last time a user keys up or until a user sends a disconnect code over the air. It’s important to note, if you are having a QSO on a TG that has been dynamically activated, it will not time out until you stop transmitting – that’s when the clock starts ticking.
It’s also important to note that a repeater can have multiple dynamic TG’s activate at any one time. In theory, you could have 10 dynamic TG’s active at the same time, although I don’t recommend this. In this scenario, the repeater handles traffic in a first come, first serve manner. This can lead to traffic being missed as each timeslot can only transmit traffic from one TG at a time – the other 9 are out of luck.
- TG must be user activated
- Multiple dynamic TG’s can be active
- Can be disconnected by users
- Typically times out after 15 minutes
In Practice
As an example for how these work in a practical setting, I’ll use my DMR repeater. As it’s currently configured, it has Michigan Statewide (3126) as a static talkgroup on TS1, and extended local traffic on TS2. If there is any activity on either of those TG’s, it’s always transmitted from my repeater. I also allow for users to dynamically activate any BrandMeister talkgroup they would like on TS2.
This means that what I deem as the most important TG’s to have (the statewide TG and the local TG) are always on the repeater BUT if a user would like to activate US Nationwide or Worldwide they are absolutely able to do so on TS2.
Transmitting
Now that you (hopefully) understand the difference between static and dynamic, let’s discuss what that means for you as an operator looking to join into a QSO or call out on a TG. This is critical – regardless of a TG being static or dynamic YOU MUST HAVE THE TG CHANNEL SELECTED ON YOUR RADIO! Just because a TG is static, does not mean any traffic into the repeater on the timeslot is routed to the talkgroup. Every single transmission on DMR requires a target TG, meaning the channel of your radio must match where you intend to transmit.
Let’s walk through a real life example to help illustrate this. Let’s say your local repeater has TG91 set as a static talkgroup. As you are listening to this, you hear a QSO you would like to join. You pick up your radio, and notice the channel is set to TG3100. If you were to key up and announce your call sign, you would be speaking on, YOU GUESSED IT, TG3100 and NOT 91 as you intended. You would have to change the channel on your radio to TG91 and THEN key up.
(D-Star trigger warning) This is much different than D-Star or Fusion, in that if a repeater is linked to a reflector or room, any traffic into the repeater goes to said reflector or room. DMR absolutely does not work in that way – every single time you press the PTT button traffic is routed to the channel talkgroup on your handset. Period.
- Regardless of a TG being static or dynamic, you MUST have the intended TG channel selected
You Made It!
I’m sure I’ve missed something here, so I reserve the right to edit this post as needed to correct some stupid mistake I’ve made. Other than that, if you have question please don’t hesitate to ask as I’m sure myself or someone else on here would be happy to help you out.
Feel free to stop by the MichiganONE DMR Net on BrandMeister TG3126, Monday nights at 8:30 PM EST as well, you might catch me as the NCS. The first week in April is our 2nd anniversary net, so we’re hoping for a banging good check-in list.
by Toshen, KE0FHS
CQ · Base · D-STAR · DMR · Hotspots · Pi-Star
BrandMeister dynamic, static, and auto‑static talkgroups
Revised: Nov 2021; CC BY-SA
Overview
The way these features work depends on whether you are using a BrandMeister repeater, or a duplex or simplex hotspot.
Quick hint for simplex hotspot users
Here are the two most important things you need to know:
- If you key up a talkgroup, it will be activated as auto-static. As long as you don’t key up a different talkgroup, the auto-static talkgroup will not time out and you’ll remain linked to it until you manually disconnect from it (drop it).
- To cleanly disconnect from an auto-static talkgroup, make a group call to TG 4000.
The rest of this article discusses the details about how all of this works:
- When using a BrandMeister repeater
- When using a personal hotspot
- The Hold Off Timer
- How to create static talkgroups
- How to schedule static talkgroups
- Auto-static talkgroups in action
Note: This article specifically addresses talkgroups, not reflectors. In late 2018, the BrandMeister U.S.A. network disallowed linking to reflectors. Linking to reflectors may still be allowed by BrandMeister in some other countries as well as by some other networks, but that’s not discussed here.
Special thanks: To Tom, W2XQ, for all his help with this article. For lots of good amateur radio-related resources, see his website, w2xq.com, and especially his Amateur Radio: DMR page.
1) When using a BrandMeister repeater
On a BrandMeister repeater, talkgroups can be static (permanently activated by the administrator) or dynamic (temporarily activated by a user).
The administrators determine how their repeaters are configured. Some allow only specific static talkgroups to be used on each time slot. Others allow users to activate dynamic talkgroups, in which case, the convention is:
- Users are allowed to activate dynamic wide-area talkgroups on time slot 1.
- Time slot 2 is used for static local talkgroups.
Note: BrandMeister administrators allow dynamic talkgroups, while some other networks can be more restrictive. To understand how a specific repeater is set up, talk to people who use it, visit its website, or contact its administrator.
1a) On Demand Timer (a.k.a., Dynamic Timer)
When you activate a dynamic talkgroup on a repeater’s time slot by keying up, it remains activated on the repeater as long as you continue transmitting on it. When you stop transmitting, it automatically gets dropped from the repeater after a period of inactivity, typically 15 minutes.
See also BrandMeister > United States > Timers.
2) When using a personal hotspot
When you link to a talkgroup via a personal hotspot, the dynamic, static, and auto-static behavior depends on whether it’s a simplex or duplex hotspot.
2a) Duplex hotspots
When you link to a BrandMeister talkgroup via a duplex hotspot, the dynamic and static behavior works similarly to how it does when you connect via a BrandMeister repeater, with a couple significant exceptions:
- Using your BrandMeister SelfCare account, you can control which talkgroups, if any, are static. See below: 4) How to create static talkgroups.
- You can even schedule talkgroups to become static for specific time periods. See below: 5) How to schedule static talkgroups.
2b) Simplex hotspots
With simplex hotspots, a new behavior is introduced: auto-static.
When you link to a BrandMeister talkgroup via a simplex hotspot, it is activated as an “auto-static” talkgroup, which behaves like a dynamic talkgroup, except that it won’t time out and drop, even if you aren’t transmitting on it. This means that when using a simplex hotspot, you can continue listening to a linked talkgroup for longer than 15 minutes without having to key up to keep the activation alive.
If you have activated an auto-static talkgroup, and then you link to a different talkgroup, the new one becomes auto-static, while the original one becomes dynamic. If you don’t transmit again on the original one, it behaves like a regular dynamic talkgroup: after 15 minutes, it will time out and drop.
The auto-static feature makes operating a simplex hotspot even simpler, since you don’t need to access BrandMeister SelfCare in order to manage static activations as much as you might do so with a duplex hotspot.
However, even though the the auto-static feature makes it unnecessary to use static talkgroups with simplex hotspots in many cases, you do still have the option to use BrandMeister SelfCare for your simplex hotspot in order to set up static talkgroups as well as to schedule talkgroups to become static.
3) The Hold Off Timer (a.k.a., Hand Off Timer)
If you have more than one BrandMeister talkgroup activated, whether they are static, auto-static, or dynamic, the Hold Off Timer comes into play. A hold -off enables you to carry on a QSO on a talkgroup you keyed up without interference from any other activated talkgroups.
If you key up one of the activated talkgroups, the hold off applies to the others, which means you won’t receive their transmissions for a period of time, even though they remain activated.
This applies even if you have an auto-static talkgroup, then key up a new talkgroup so that it becomes auto-static and the original one becomes dynamic: a hold off immediately applies to the original one.
For BrandMeister U.S.A., the hold off time for Master Servers 3101, 3102, and 3103 is 5 minutes. For other Master Servers in other countries, the hold off times may vary, and in some cases, may be considerably shorter.
See also BrandMeister > United States > Timers.
4) How to create static talkgroups
You can use your BrandMeister SelfCare account to create one or more static talkgroups for use with your duplex or simplex hotspots:
- If you haven’t already, register for your BrandMeister SelfCare account:
https://brandmeister.network/ - Make sure your hotspot is turned on, and that the DMR mode is enabled and connected to a BrandMeister Master Server.
- Log into your BrandMeister SelfCare account
. - In the BrandMeister menu panel, find the My hotspots option:
- On a mobile device or in a narrower browser window, you can open the menu panel by clicking the top left Menu button.
- In a wide browser window, the panel will be open already on the left.
- Click My hotspots to open the list of your hotspots, identified by CCS7 ID (green plug icon = active), and then click the one you want to configure.
- In the hotspot Settings window that opens, scroll down to the Static Talkgroups section. In the first field, type the number of the talkgroup that you want to make static, and then click the Right-Arrow button to move it to the other field and make it static. (For duplex hotspots, there are two Static Talkgroups sections, one for each of the time slots.)Note:TAC channels shouldn’t be used as primary calling channels. TAC channels (U.S.: 310 – 319; worldwide: 901 – 903) can’t be added as static talkgroups, and also won’t become auto-static. If you want a primary calling channel, try one like U.S. Wide talkgroup 3100 or worldwide talkgroups 91 – 95. For more info, see the BrandMeister U.S. Wiki.
5) How to schedule static talkgroups
- In the hotspot Settings window, scroll down to the Scheduled Static section, and then click the Add Scheduled Static button.
- In the Add a Scheduled Static dialog box, type a talkgroup number, select a day of the week, move the slider to pick a 3-hour time period (note that both UTC and local times are shown), and pick a start and stop date.Note:Once you pick a start date, when you then click the stop date field, you’ll find that the date one year in the future is already pre-selected.
- Click Add Talkgroup. The talkgroup is then listed in Active Timed Statics.
6) Auto-static talkgroups in action
You can view the behavior of auto-static talkgroups via BrandMeister’s SelfCare Settings page, as well as Pi-Star’s Active BrandMeister Connections module.
Note: Remember, the auto-static feature applies only to simplex hotspots.
- In the BrandMeister SelfCare Settings window for the hotspot, scroll down to the Static Talkgroups section to see static and auto-static talkgroups.Note:It can take a while for an auto-static talkgroup to show up in the Static Talkgroups list, and sometimes you must refresh to see the change.
- If you are using a desktop browser that displays tooltips and point your mouse cursor at a static talkgroup in the list, no tooltip is shown, but if you point at an auto-static talkgroup, you’ll see an “Auto Static” tooltip.
- Per my testing, the tooltip should actually say: “This talkgroup was set automatically as auto-static due to it being the last talkgroup keyed up.”
- If you key up an auto-static talkgroup that you previously made a static talkgroup, it will be listed twice, first as static (no tooltip), and second as auto-static (“Auto Static” tooltip). This has no effect on its behavior.
- In the Pi-Star Active BrandMeister Connections module, which can be enabled via Pi-Star Expert Editor > BrandMeister API, an auto-static talkgroup is listed in the Dynamic TGs list.After 15 minutes of inactivity, it will drop off the list, though per my testing, it remains activated and won’t time out as long as it remains auto-static.
- Note:If you have a talkgroup set up as static in BrandMeister SelfCare, when you first start up Pi-Star, it will be listed in the Static TGs list, but it won’t be shown as linked in Pi-Star’s DMR Repeater module (you’ll see “No TG/No Ref”). However, as soon as there is any activity on the talkgroup, you’ll receive it, and then it will be shown as linked in the DMR Repeater module.
6a) Disconnecting from an auto-static talkgroup
There are a couple different ways to disconnect from an auto-static talkgroup:
- Key up a group call to talkgroup 4000– This is the cleanest way. It causes all your current dynamic and auto-static talkgroups to be immediately dropped, without waiting for the full 15 minutes of inactivity.
- Note:Although TG 4000 will be displayed in the Pi-Star DMR Repeater module, it will not become auto-static.
- Hint:If you add a TG 4000 (group call) channel to each zone in your radio that contains BrandMeister talkgroups you link to, you can quickly drop a talkgroup by dialing up that channel in the zone, and then pressing PTT. This can make it easier to disconnect from a busy talkgroup.
- Key up a different talkgroup– This will cause the new talkgroup to become auto-static, while the previous one will become dynamic for 15 minutes and then, if you don’t key it up again, will drop.
- While the previous talkgroup is dynamic, you’ll continue to receive transmissions from it, unless the hold off timer is active. Keep in mind that if the dynamic talkgroup is a busy one, it might overwhelm the new auto-static talkgroup. If the people using the dynamic talkgroup aren’t leaving adequate gaps between their transmissions, it might even be challenging for you to make a call on the new auto-static talkgroup.
Some odd behaviors
There are a few odd behaviors that occur when you key up and activate a talkgroup as auto-static on a simplex hotspot or dynamic on a duplex hotspot.
- As expected:The dynamic talkgroup gets listed in Pi-Star’s Active BrandMeister Connections module under Dynamic TGs.
- First odd behavior:The auto-static talkgroup also gets listed under Dynamic TGs. I guess this is either because it’s behaving like a permanent dynamic talkgroup or that there isn’t room for a separate “Auto-Static TGs” field.
- As expected:In both cases, the talkgroups also are displayed in Pi-Star’s DMR Repeater module.
- As expected:After 15 minutes of inactivity, a dynamic talkgroup drops and is removed from the Dynamic TGs list.
- Second odd behavior:The dropped dynamic talkgroup isn’t removed from the DMR Repeater module, even though you won’t receive any subsequent transmissions on that talkgroup.
- Third odd behavior:After 15 minutes of inactivity, an auto-static talkgroup also is removed from the Dynamic TGs list, though not from the DMR Repeater module, and even though it remains listed in the BrandMeister SelfCare Static Talkgroups list as auto-static and you’ll continue to receive any subsequent transmissions on that talkgroup.
Advanced BrandMeister API use
In Pi-Star, the BrandMeister API controls the Active BrandMeister Connections module. For additional information about advanced use of the BrandMeister API, see the article Using the BrandMeister API by Vladimir, AC2F
Amateur radio notes by Toshen, KE0FHS:
CQ · Base · D-STAR · DMR · Hotspots · Pi-Star
Comments or feedback?
Please let me know
This work by KE0FHS
is licensed under a
Creative Commons Attribution-
ShareAlike 4.0 International License
https://amateurradionotes.com/auto-static.htm
DMR Explained – Static vs. Dynamic Talkgroups
Dynamic and static talkgroups for DMR are confusing for many digital ham radio operators. Here is the basics you need to know about DMR talkgroups. Feel free to share this with your fellow ham radio friends!
https://www.youtube.com/watch?v=uFPA_jFRDKw
Setting Static Talk Groups on the Brandmeister Dashboard
A quick overview on leveraging the static talk groups and scheduled talk groups features within the Brandmeister DMR amateur radio system’s user dashboard. We also touched briefly on some of the other repeater and hotspot features and settings which can be managed on the dashboard. This is a recording of a Zoom Session ‘deep dive’ following the Big Island Amateur Radio Club’s regular Wednesday Night Tech Net.
https://www.youtube.com/watch?v=dMHfr6WAY3I
U.S. BrandMeister Server User Guide
Purpose
The purpose of this document is to describe how you can best utilize the services offered by the BrandMeister network which your local repeater is connected to. This document will be updated from time to time as new information and services become available by your local repeater admin.
Terminology
Key terms used within this document and their definitions.
- Master – The server to which your repeater is connects and provides access to other users and services.
- Static Talk Group – A talk group which is “always on” meaning it is always sent to the repeater on the assigned time slot without any user intervention.
- Dynamic Talk Group – A talk group which is only sent to the repeater when a local user keys up that talk group. The talk group will be sent to the repeater for a period of 15 minutes after the most recent key up by a local user.
- Regional Talk Group – A talk group which is used to connect all repeaters within a specific callsign area as specified by the FCC. A map depicting the various callsign areas within the United States is located later in this document.
- Statewide Talk Group – A talk group which is used to connect all repeaters within a specific state. A list of all Statewide talk group IDs is located later in this document.
The tables below describe the default configuration of repeaters connected to the U. S. BrandMeister Servers. Each of the talk groups listed is configured statically, meaning it is always available. Any variance from this configuration will be communicated to you by your repeater admin. Use this information as a starting point for configuring your radio(s) to access the system.
Talk Groups on Time Slot 1
Number Name Description
91 Worldwide Worldwide Talk Group
93 North America North America
3100 U.S.A Nationwide – Connected to DCI Bridge on DMRX
3109X* U.S. Area X Regional Talk Group Based on Repeater Callsign Area
31089** Hytera Network USA Talk Group for Legacy DMRPlus Systems in the U.S.
* See list of Regional talk group IDs later in this document.
** Only Static on Legacy DMRPlus Systems
Talk Groups on Time Slot 2
Number Name Description
2 or 9 Local Local Talk Group as Determined by Repeater Admin
8900* Local Local Talk Group for Las Vegas Area Repeaters
31XX** Statewide Statewide Talk Group Based on Repeater Location
* Only for Las Vegas Area Repeaters
** See list of Statewide talk group IDs later in this document.
Statewide Talk Groups
Statewide talk groups are used to connect all repeaters within a specific state.
Statewide Talk Groups
Number Name Number Name
3101 Alabama 3130 Montana
3102 Alaska 3131 Nebraska
3104 Arizona 3132 Nevada
3105 Arkansas 3133 New Hampshire
3106 California 3134 New Jersey
3108 Colorado 3135 New Mexico
3109 Connecticut 3136 New York
3110 Deleware 3137 North Carolina
3111 District of Columbia 3138 North Dakota
3112 Florida 3139 Ohio
3113 Georgia 3140 Oklahoma
3115 Hawaii 3141 Oregon
3116 Idaho 3142 Pennsylvania
3117 Illinois 3144 Rhode Island
3118 Indiana 3145 South Carolina
3119 Iowa 3146 South Dakota
3120 Kansas 3147 Tennessee
3121 Kentucky 3148 Texas
3122 Louisiana 3149 Utah
3123 Maine 3150 Vermont
3124 Maryland 3151 Virginia
3125 Massachusetts 3153 Washington
3126 Michigan 3154 West Virginia
3127 Minnesota 3155 Wisconsin
3128 Mississippi 3156 Wyoming
3129 Missouri
Last Updated: 02/24/2016 U.S. BrandMeister Server User Guide 6
https://wiki.brandmeister.network/images/d/d8/US_BM_User_Guide.pdf
Let’s discuss talkgroups, what they are and how to use them.
What Is A Talkgroup?
A DMR talkgroup is simply a way of grouping many Radio IDs into a single digital contact. Or put another way, a talkgroup is a method of organizing radio traffic specific to the DMR users that all want to hear the same thing and not be bothered by other radio traffic on a DMR network that they are not interested in hearing.
Talkgroups can exist for many purposes. You can have talkgroups for countries, states, counties, regions, cities, special interest groups etc. Just about any group of DMR users could have a talkgroup assigned to them if they wished to organize traffic that they can all monitor and take part in, without having to talk to each other one by one.
Talkgroups are also specific to individual DMR networks, BUT they all generally follow the same numbering scheme. So you need to make sure that you know what the various talkgroups are for each of the DMR networks that you may use.
For example, Talkgroup 3129 on the MARC network might not be the same as Talkgroup 3129 on the Brandmeister network.
Be sure to manage your Talkgroups separately if you use more that one DMR network!
What is a Static Talkgroup?
A static talkgroup is one that is permanently activated on a particular timeslot by the repeater sysop. This type of static assignment passes ALL traffic from the DMR network over the air on the timeslot it is assigned to.
For example, if a statewide talkgroup is assigned to the local repeater on timeslot 1, anytime someone keys that talkgroup on the network, regardless of where they are, the audio will be retransmitted locally.
In simple terms, this networks many repeaters together full-time for that particular talkgroup.
What is a Dynamic Talkgroup?
Dynamic talkgroups assignments are used for temporary activation on a timeslot on a particular repeater. This type of talkgroup functions for a set amount of time AFTER a local repeater user activates it by transmitting on a repeater using that talkgroup in their radio. When the timer expires and no local user has keyed up again for a set amount of time… the timeslot and the talkgroup and release and the repeater is again open only to the talkgroups that remain static.
For example, if you are traveling in Colorado and wish to talk to a friend back home in Missouri, you could key up the Missouri talkgroup on a Colorado repeater that allows dynamic talkgroups and make a call on repeaters at home that have the Missouri talkgroup set as static. When you are done with your conversation, the dynamic timer will expire and the Colorado repeater will go back to normal.