SDS100/SDS200: DMR Slow Scanning?

donc13

Member
Premium Subscriber
Joined
Dec 19, 2002
Messages
1,470
Location
Grand Junction, CO
If i leave my sds100 on 24/7 and never turn it off do you think it would last say 5 years?
Probably, but... And there's always a but... Depends on your use of a high quality electrical surge protector and if you use an outdoor antenna, how well you have it and the coax lightning protected.
 

AngWay

Newbie
Premium Subscriber
Joined
Sep 19, 2020
Messages
781
Location
GRUNDY
Probably, but... And there's always a but... Depends on your use of a high quality electrical surge protector and if you use an outdoor antenna, how well you have it and the coax lightning protected.
What does it mean when i see cap+ at the top of my sds100 i know it's dmr but is it a trunking one i tried searching for it and the freqs ain't in the database but it's 461.6500 i have always seen DMR at the top but never CAP+ until now if i programmed that into sentinel would i choose dmr one freqs or motoTRBO ?
 

Ubbe

Member
Joined
Sep 8, 2006
Messages
9,650
Location
Stockholm, Sweden
would i choose dmr one freqs or motoTRBO ?
As it's only one frequency you can program it as OFT and monitor both slots. If it turns out to have a second frequency then you will have to program those as MotoTrbo and enter their correct LCN numbers.

You should probably verify that frequency using another receiver so that it isn't a false mirror frequency in the SDS100.

/Ubbe
 

AngWay

Newbie
Premium Subscriber
Joined
Sep 19, 2020
Messages
781
Location
GRUNDY
As it's only one frequency you can program it as OFT and monitor both slots. If it turns out to have a second frequency then you will have to program those as MotoTrbo and enter their correct LCN numbers.

You should probably verify that frequency using another receiver so that it isn't a false mirror frequency in the SDS100.

/Ubbe
what is a false mirror freqs?
 

AngWay

Newbie
Premium Subscriber
Joined
Sep 19, 2020
Messages
781
Location
GRUNDY
I'm use to seeing just DMR in the top right corner but now i'm seeing This and i'm just confused what is the difference with that and why is it just that one freqs is it trunked?
 

Enjoi19

Active Member
Premium Subscriber
Joined
Mar 17, 2020
Messages
966
It's indicating that it's a Motorola Capacity+ system and using timeslot 1.
 

JoeBearcat

Active Member
Uniden Representative
Joined
Jun 30, 2020
Messages
1,998
If a unit cannot be fixed, often a replacement is offered for a price. The keys may (or may not) be transferable since the old unit can be claimed as no longer in use.
 

Ubbe

Member
Joined
Sep 8, 2006
Messages
9,650
Location
Stockholm, Sweden
what is a false mirror freqs?
It's oscillator signals, that shouldn't exists, in the scanner that works as a mixer and creates other frequencies where you can hear a transmission.

I made a test on my SDS100E to see how bad it was, it's always worse in SDR receivers than in conventional receivers like BCD536HP.
I generated a strong signal from a RF signal generator and tuned around in the frequency band to see where those mirrors appears, and it's pretty bad in SDS100. In digital mode you don't hear those mirrors as you only listen to the decoded analog audio from the digital signal, but will compromise reception just as much as in analog mode.


/Ubbe
 

AngWay

Newbie
Premium Subscriber
Joined
Sep 19, 2020
Messages
781
Location
GRUNDY
The DMR freqs that are Here at the bottom would i put those into sentinel as a dmr one freqs or conventional ?
I just want to make sure i got this right those are not trunked dmr freqs are they?
 

Ubbe

Member
Joined
Sep 8, 2006
Messages
9,650
Location
Stockholm, Sweden
those are not trunked dmr freqs are they?
They use each slot as a separate conventional channel, so not trunked. If you only want to hear FD Dispatch then monitor only slot 1 of 155.970 but if you also want to hear FD Tactical you monitor both slots.

Even if a system are trunked you can enter their channels to monitor but it will not follow a call if it happens to jump between channels during a conversation. But you then don't need any LCN programming to be done as you will if programmed as MotoTrbo. OFT are good for unknown trunked systems until you figure them out.

/Ubbe
 

AngWay

Newbie
Premium Subscriber
Joined
Sep 19, 2020
Messages
781
Location
GRUNDY
What is this it says it's DMRT3 on the sds100 . how would i program that kind of system into sentinel ? do i select dmr one freqs or motoTRBO or just motorola? the freqs is 460.6750 but i can't find it anywhere saying it's dmrt3
 

Attachments

  • pic3.png
    pic3.png
    552.1 KB · Views: 13
  • pic4.jpeg
    pic4.jpeg
    51.5 KB · Views: 13

AngWay

Newbie
Premium Subscriber
Joined
Sep 19, 2020
Messages
781
Location
GRUNDY
Ok i don't know why this is happening but whenever my sds100 stops on a dmr freqs it hangs there with no audio sometimes there is audio sometimes there is no audio and it just hangs . it doesn't do this on any other freqs such as nxdn or p25
 

AngWay

Newbie
Premium Subscriber
Joined
Sep 19, 2020
Messages
781
Location
GRUNDY
All that info is in the link I provided to you previously here. There is even information in there on determining the LCN's on DSD versus Uniden for DMR Tier 3 systems.
Here is a video showing how the sds100 while scanner will stop on a frequency and hang there for a long time with no audio, It always does it on the dickenson dmr site and i just noticed it's doing it on a p25 site as well. is this fixable it really slows the scanning down.

Video
 

Enjoi19

Active Member
Premium Subscriber
Joined
Mar 17, 2020
Messages
966
Here is a video showing how the sds100 while scanner will stop on a frequency and hang there for a long time with no audio, It always does it on the dickenson dmr site and i just noticed it's doing it on a p25 site as well. is this fixable it really slows the scanning down.

Video
The time it stops on trunked systems is to check for activity. It cannot be sped up.
 

AngWay

Newbie
Premium Subscriber
Joined
Sep 19, 2020
Messages
781
Location
GRUNDY
The time it stops on trunked systems is to check for activity. It cannot be sped u
Yeah i know that but this is conventional , what i mean is i have it programmed in as conventional . also it's not a control channel the dickenson freqs it's hanging on is not a control channel all the audio happens on that one frequency. and this is not how a trunked system is when i'm scanning with stars enabled it doesn't just hang there for 30 seconds before it moves on . could i have it programmed it in wrong. i read on another post that it's a tier 3 system and i have it programmed as conventional. the freqs is 154.8600 153.1250 and 155.7000 these all show NXDN but dsdplus is telling me they are DMR and my sds100 also tells me they are DMR
 
Top