https://mobile.twitter.com/DMRNETcanada/status/771762748791353344
@ve5dwr Sadly BrandMaster is not connect to the CANADA Talkgroup 302 and DMR-Marc
DMR-Marc Frequently Asked Questions
http://dmrnetwork.blogspot.ca/2016/09/dmr-marc-frequently-asked-questions.htmlResources :
SharkRF openSPOT access into DMR-MARC net
Access with DV4MINI / DVMEGA / SHARKRF to the DMR-MARC Canada Net
DMR-MARC and DMRPlus Partnership Update : https://dmr-marc.net/
DMR Plus North America - DMRplus and DMR-MARC
DMR Plus - DMR-MARC Network - https://dmr-marc.net/FAQ/dmrplus-america.html
SharkRF openSPOT forum - https://forum.sharkrf.com/
SharkRF openSPOT - http://sharkrf.blogspot.com
I was hoping to figure out a way to run my dv4 mini headless and connect via wifi Sunday night to check into Trans Canada DMR NET. No dice. I configured the raspberry Pi to autostart. But I would like to remote into it so that I can change wifi and channels.
ReplyDeleteTo date the DV4mini can Only access BrandMaster Network and Not connect to DMR-Marc and Canada Talkgroup 302.
ReplyDeleteBrandMaster does have 2 Canada reflectors (English/French) but are not the same as DMRMarc Canada talkgroup 302.
Yes Motorola and c b ridge do not allow 3rd party access to the technology stack
ReplyDeleteHence as you already know the dv4mini is not for dmr users
This will not change as per the last design docs I looked at
Batwing is proprietary BM is open source
Is there a way to simply discover the colour code?
ReplyDeleteThe DMR-MARC Networked Repeaters Directory
Deletehttp://dmr-marc.net/repeaters.html
COLOUR CODE
DeleteIn digital mode, all MOTOTRBO radios support a feature known as Color Code (USA: Color, everywhere else: Colour). In fact this is defined in the ETSI DMR standard.
In a MOTOTRBO radio or repeater, there is a color code field which allows the selection of one of 15 colour codes. A radio which has been programmed with colour code 1 will not be able to transmit on a repeater configured with colour code 2 and so forth. A radio can be configured with multiple colour codes - one for each channel. A repeater can only be configured with one colour code.
Colour code is useful because it can prevent radios from one site or system mistakenly roaming to another site or system which uses the same frequencies. Although there is activity from the neighboring system, the radio will ignore all transmissions from the other system because it has a different colour code.
This is also useful for telecommunication regulators who have to allocate the same frequency to two DMR licencees in the same region. The regulator simply has to specify a colour code in the licence conditions - much like PL/DPL was used in analogue as a guard tone.
There is a limitation of course, if two geographically adjacent radio systems use the same frequencies, yet use a different colour code, there will be audio quality issues in the area where radio users are able to receive signals from both systems at roughly the same signal strength.
MOTOTRBO radios can also be configured to be "polite" to other systems using the same frequency. In the CPS, it is possible to set the TX Admit Criteria to be Color Code Free. This will only permit the radio to transmit if there is no signal, or if the signal present on the receive frequency has the same colour code.
On simplex channels which employ DCDM, colour code 15 is reserved for inter-radio synchronization signaling - so only 0 to 14 may be used on systems that use this feature.
Although not intended for this, colour code also provides an additional mechanism to prevent casual eavesdroppers. More determined (resolute) eavesdroppers will however be able to determine the colour code using a scanner and a decoder application. In such cases Enhanced Privacy or 256 bit AES should be used.