Page 1 of 1
Need to key Duplex to start receiving, but not my jumbo?
Posted: Tue Jul 09, 2019 2:00 am
by k9ohv
Is there a setting in the dashboard that controls this? Its weird, my Jumbo starts right up and begins to receive. But with my Duplex, i need to key it first to hear a talk group. And then it drops it after a period of time, even if it is active.
Re: Need to key Duplex to start receiving, but not my jumbo?
Posted: Tue Jul 09, 2019 8:27 am
by MW0MWZ
In short - YES, thats a difference between a hotspot and a repeater.
The networks see the duplex board as a repeater and treat it like one, all the dynamic talk groups time out after 15 mins of no local use.
You can set your most used TGs static using BrandMeister self care (or the dashboard if you have your API Key setup).
Hotspots (on BM at least) will keep the last used talk group "sticky" so that it doesn't time out, so this is exactly why you have the difference.
Hope that helps.
Re: Need to key Duplex to start receiving, but not my jumbo?
Posted: Tue Jul 09, 2019 5:46 pm
by k9ohv
MW0MWZ wrote: ↑Tue Jul 09, 2019 8:27 am
In short - YES, thats a difference between a hotspot and a repeater.
The networks see the duplex board as a repeater and treat it like one, all the dynamic talk groups time out after 15 mins of no local use.
Mine seems to drop after only 5 min
You can set your most used TGs static using BrandMeister self care (or the dashboard if you have your API Key setup).
Hotspots (on BM at least) will keep the last used talk group "sticky" so that it doesn't time out, so this is exactly why you have the difference.
But you have to do that every time you startup the duplex, yes?
Hope that helps.
Yes, thanks Andy
Re: Need to key Duplex to start receiving, but not my jumbo?
Posted: Tue Jul 09, 2019 6:01 pm
by MW0MWZ
k9ohv wrote: ↑Tue Jul 09, 2019 5:46 pm
MW0MWZ wrote: ↑Tue Jul 09, 2019 8:27 am
In short - YES, thats a difference between a hotspot and a repeater.
The networks see the duplex board as a repeater and treat it like one, all the dynamic talk groups time out after 15 mins of no local use.
Mine seems to drop after only 5 min
You can set your most used TGs static using BrandMeister self care (or the dashboard if you have your API Key setup).
Hotspots (on BM at least) will keep the last used talk group "sticky" so that it doesn't time out, so this is exactly why you have the difference.
But you have to do that every time you startup the duplex, yes?
Hope that helps.
Yes, thanks Andy
Dropping at 5 mins would be pretty quick, thats a network thing that we cant change, try a different master and see if its only happening on that one.
Once you set some static TGs, those stay static until you change them - so dont need to do that on every startup. If you made say TG91 static, it will stay there until you remove it, no matter if you reboot etc.
Re: Need to key Duplex to start receiving, but not my jumbo?
Posted: Tue Jul 16, 2019 6:21 am
by k9ohv
What if i were to change the controller mode in the dashboard from duplex to simplex? Would the network then see it as a hotspot?
Re: Need to key Duplex to start receiving, but not my jumbo?
Posted: Sat Jul 20, 2019 7:00 am
by KD8DVR
k9ohv wrote: ↑Tue Jul 16, 2019 6:21 am
What if i were to change the controller mode in the dashboard from duplex to simplex? Would the network then see it as a hotspot?
I believe so, yes. But it's a waste of device capability.
Re: Need to key Duplex to start receiving, but not my jumbo?
Posted: Tue Jul 23, 2019 9:56 pm
by k9ohv
OK, So lets weigh the options. Can someone tell me what the function or "benefit" of the Duplex is? That is, without drowning me in technical jargon? I hear conflicting answers. Some say, Yes, it is a repeater. Some say it allows monitoring of both time slots.
Maybe it does both ?
Would i be correct in saying that this "Duplex" can be used just like a repeater in that, It can be receiving my signal AND send it to both the internet (A DMR Master) AND transmit that same signal out the TX side to be received locally? like say if i had another HT radio within range?
That would be of value, but maybe not needed all the time.
If it just allows monitoring of both time slots, that would only be useful if i wanted to use it for local or direct traffic (time slot 1) as well monitoring time slot 2, right? If so, not much use there for me, so i could make this simplex, and be able to monitor a talk group longer. That is the reason for this thread. I dont like how the Duplexes get their talk groups dropped sooner than the simplexes. AND need to be keyed to even start monitoring!
And...
If i didn't have the need to be running two HTs at the same time on this Duplex, i could change it to simplex to monitor a talk group longer. That would be of value. And yes, i understand, i wouldn't be using the full benefit of the Duplex. But it seems that full benefit leaves out some of the components of value (for me).
question:
Does changing from Duplex to Simplex (in the dashboard) change any other settings that i would have to change back if i were to want to go back and forth between Duplex and Simplex if the need ever arose?
Thanks,
Rob
Re: Need to key Duplex to start receiving, but not my jumbo?
Posted: Wed Jul 24, 2019 12:42 pm
by KE0FHS
k9ohv wrote: ↑Tue Jul 23, 2019 9:56 pm
OK, So lets weigh the options. Can someone tell me what the function or "benefit" of the Duplex is? That is, without drowning me in technical jargon? I hear conflicting answers. Some say, Yes, it is a repeater. Some say it allows monitoring of both time slots.
The dual boards have one immediate advantage over the simplex hotspots, which is that you can transmit even when your radio is in the middle of receiving. This means that you can easily unlink from a busy talkgroup even when the hams using the TG don't leave gaps between their transmissions.
Another advantage of the dual boards is that you can use both time slots, for example, you can use two DMR radios, one linked via TS1 and the other linked via TS2, to listen to both linked talkgroups simultaneously.
Would i be correct in saying that this "Duplex" can be used just like a repeater in that, It can be receiving my signal AND send it to both the internet (A DMR Master) AND transmit that same signal out the TX side to be received locally? like say if i had another HT radio within range?
No.
Does changing from Duplex to Simplex (in the dashboard) change any other settings that i would have to change back if i were to want to go back and forth between Duplex and Simplex if the need ever arose?
[/quote]
In General Configuration, for duplex, you have both an RX and TX frequency; for simplex, just one frequency. I'm not sure that the RX and TX frequencies would be preserved if you switch to simplex and then back to duplex, but am guessing not.