• To anyone looking to acquire commercial radio programming software:

    Please do not make requests for copies of radio programming software which is sold (or was sold) by the manufacturer for any monetary value. All requests will be deleted and a forum infraction issued. Making a request such as this is attempting to engage in software piracy and this forum cannot be involved or associated with this activity. The same goes for any private transaction via Private Message. Even if you attempt to engage in this activity in PM's we will still enforce the forum rules. Your PM's are not private and the administration has the right to read them if there's a hint to criminal activity.

    If you are having trouble legally obtaining software please state so. We do not want any hurt feelings when your vague post is mistaken for a free request. It is YOUR responsibility to properly word your request.

    To obtain Motorola software see the Sticky in the Motorola forum.

    The various other vendors often permit their dealers to sell the software online (i.e., Kenwood). Please use Google or some other search engine to find a dealer that sells the software. Typically each series or individual radio requires its own software package. Often the Kenwood software is less than $100 so don't be a cheapskate; just purchase it.

    For M/A Com/Harris/GE, etc: there are two software packages that program all current and past radios. One package is for conventional programming and the other for trunked programming. The trunked package is in upwards of $2,500. The conventional package is more reasonable though is still several hundred dollars. The benefit is you do not need multiple versions for each radio (unlike Motorola).

    This is a large and very visible forum. We cannot jeopardize the ability to provide the RadioReference services by allowing this activity to occur. Please respect this.

VP8000 DCDM?

otobmark

Member
Premium Subscriber
Joined
Mar 19, 2003
Messages
502
Location
NC
I'm traveling so cannot do any experimenting at the moment (I'm visiting your tax dollars). IF I'm remembering correctly in the past when entering a simplex DMR frequency the TS field would gray out. I was working on a plug yesterday and noticed that the TS field was NOT grayed out on simplex DMR channels and could be set (TS1, TS2, Auto). Even before this while doing SFR experiments I noticed different behavior depending on how the "grayed out" TS was set. I would set it in duplex mode and then change frequency to simplex which would keep my setting even though it was now grayed out. What I wonder now is if there is a NON DCDM capability at all? When fields grayed out before it was implied. Maybe Auto TS accomplishes this for all practical purposes. Am I right with assuming when using a normal repeater that it responds (handshake) to subscriber with a MASTER clock sync? With moto radios you could select whether radio could be slave, master, or eligible for DCDM. I don't think I've seen that with other brand subscribers.
 

tweiss3

Is it time for Coffee?
Premium Subscriber
Joined
Apr 24, 2020
Messages
1,285
Location
Ohio
Yes, under normal repeater operation, the handshake between the repeater and radio allows it to set the correct timeslot. Before DCDM, under simplex operation, there is no "master clock" for a handshake, so every transmission was treated as either slot. DCDM allows one radio to be the master clock and create a handshake thus allowing simplex communications to decipher between slots.

I just looked under Armada help, and DCDM does not exist in the 1.42.23 help file. I'm guessing since DMR in the VP8000 is so rudimentary, DCDM is not included, and thus compatibility across the board is kept.

Have you used it with a simplex hotspot? The hotspots don't work with DCDM enabled, that would be the quickest test.
 

otobmark

Member
Premium Subscriber
Joined
Mar 19, 2003
Messages
502
Location
NC
I just looked under Armada help, and DCDM does not exist in the 1.42.23 help file. I'm guessing since DMR in the VP8000 is so rudimentary, DCDM is not included, and thus compatibility across the board is kept.
My understanding as well in the past. What's new is Armada is now letting me actually set TS parameters on simplex instead of it being grayed out. I guess when I get home I'll try simplex with my other radios (Kenwood, Motorola, hytera, alinco, anytone) and see how they react. I only have a Mac with me so I cannot really shoot my VP (well I could until my Phone quit going into hotspot mode--tethering not allowed all of a sudden). If you've seen some of my other posts I'm pursuing SFR solution for a local org. Hytera was a likely SFR candidate but since all the Motorola lawsuit back and forth it has become complicated/expensive. I don't think the anytone will have the filtering or processing speed to be an efficient good range solution. Company out of AU sounds best (FDP Radio) but no US dealers. Plan is to use NX1300 series subscriber radios.
 

wd8chl

Member
Joined
Apr 4, 2007
Messages
452
What in the world is DCDM? Do you mean dual-slot direct mode (DSDM)? Not available on EFJ radios just yet as far as I can see.
Auto-slot is just that-it allows the repeater to assign a slot based on usage, which is why HYT called it "pseudo-trunk".
Obviously, that doesn't get used on simplex.
 

tweiss3

Is it time for Coffee?
Premium Subscriber
Joined
Apr 24, 2020
Messages
1,285
Location
Ohio
What in the world is DCDM? Do you mean dual-slot direct mode (DSDM)?
Doh! I'm not sure why my brain didn't parse that it was wrong. DSDM is not in Armada help either.

My VP8000 isn't in yet, so I can't speak to real world testing, but I suspect you are correct, its not implemented in EFJ's "first run" at DMR.
 

otobmark

Member
Premium Subscriber
Joined
Mar 19, 2003
Messages
502
Location
NC
If you CAN set a TS on simplex then it is DSDM/DCDM by definition unless armada has a bug. Before I couldn’t set TS on simplex and now I can. As to Auto on simplex receive why not? If incoming signal has clock (DSDM does) then it has all it needs to define TS’s. Now on VP initiated simplex if clock is missing it may be a problem.
 

n7maq-1

Member
Premium Subscriber
Joined
Mar 12, 2004
Messages
207
Location
Oregon
If you CAN set a TS on simplex then it is DSDM/DCDM by definition unless armada has a bug. Before I couldn’t set TS on simplex and now I can. As to Auto on simplex receive why not? If incoming signal has clock (DSDM does) then it has all it needs to define TS’s. Now on VP initiated simplex if clock is missing it may be a problem.
It's not a bug in Armada, from the help file.

"Note: The radio does not support Slot 2 timing unless there is a repeater involved. If a radio receives a call from another radio in Direct Mode (no repeater as a go-between) it always receives on Slot 1, regardless of the slot."

Yes, it would be better if they had disabled/grayed out the time slot selector until EFJ enables DSDM, I can see where it could cause confusion.

Jim
 
Top