VK Logger Ham Radio Forum Archive

truly massive......and doesn't look like its something that exists outside a capital city.

http://orionet.com.au/Coverage-Maps.aspx

So you can't read coverage plots either? Work out the percentage of the Australian population living in the coverage areas... the major blue chip companies using it are interested where the population is. That is why a TDMA based technology like DMR is ideal- spectrum is expensive and the capacity of a TDMA system is far superior to FDMA (as well as permitting it to be used for data and voice).

And it seems to me that you have a chip on your shoulder. The owner of the Orion network has allowed amateur repeaters to share the infrastructure- so keep up with the attitude, you are making a goose of yourself.


Richard
VK2AAH

I am taking my dearmar cricket bat and going home. Such a sook

Does anybody have a software solution for DMR so we can use an old Tait repeater and a Raspberry Pi ?

Alan VK2ZIW

Following this one closely as I would that idea myself, it would make it cheaper to deploy a DMR repeater.
Can't say I have heard about it as of yet but there is a DV dongle along the same lines as the DV dongle used for D-Star that will do both Dstar and DMR coming out very soon

EDIT: Found the web link for it, have a look at it at the link below

http://www.helitron.de/shop/product_inf ... ucts_id=81


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Hay Brandon you can add a new freq allocation (new repeater)to your existing club site for less than a carton of beer. you will not be given a discount on your carton of beer if you choose analog, TDMA or any other technology. The last one we did in Mackay cost about $30 from memory.

VK2FABB, thanks for the weblink DV4mini.

I've emailed them, mentioning we need a solution, full duplex for a repeater and 10mW is ridiculous.
We have Tait UHF repeaters in abundance to modify.

Alan VK2ZIW

Thanks Wazza
Also no worries Alan, 10mw would be good for around the shack but like you say it is no good for use anywhere else


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Hay Brandon keep an eye out for me for any 2nd Motorola DMR gear. They seem to be few and far between on ebay. $500 plus delivery seems a bit pricey for a single bander. I did see some ex Grosvenor mine radio's pop up a while ago but cant recall if they are bottom enders.

No worries will do Wazza, been trying to get myself a mobile to replace my old GME in my car.


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Thanks I have been waiting for the demand of the dv4mini to die down and then I am going to buy one, but i am having some issues with my TYT MD-380 at the moment with it not decoding DMR voice but sends it fine, so will have to wait and see what happens might even get into DMR instead as it is way more popular here in VK then what DMR is my a long shot


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I THINK the only operational VK3 DMR-MARC repeater is VK3TE at the moment. 73 Andy VK3AS

If you wish to go thru the importing process and then obtaining a version of the USA CPS. Try this guy he sells on Ebay as well contact him before buying ! twowaydigitalradio.com his name is Ken Bryant, he has a call. 73 Andy

VK3AS wrote:I THINK the only operational VK3 DMR-MARC repeater is VK3TE at the moment. 73 Andy VK3AS

Well i think you are building a another VK3 DMR repeater Andy.

Also VK2RHK and VK2RAG with VK4RCN, joining the ever growing

VK BrandMeister DMR System

There is a choice for repeaters, and any can connect ;

https://bm.pd0zry.nl/index.php/What_is_BrandMeister

https://groups.yahoo.com/neo/groups/vkBrandMeister/info

Hytera Repeaters
Motorola Repeaters
RadioActivity Repeaters
Homebrew Repeaters
DV-MEGA

Don't forget WICEN.

Message passing over a 'secure' channel.

Also, two channels over one repeater.
Availability of lots of hand-helds for a search and rescue, something Fusion or D-Star will never match.

We are all in the learning phase here.
Will a MMDVM based network build and overtake the DMR-MARC network in time?

Keep smiling - Alan VK2ZIW

The DMR-marc is a very good system. We used to have a TG link there once, however it is not desired by DMR-Marc users.

The DV4mini is mainly to blame for this unpopularity. Over time we realised the Germans were never going to get the software to a required standard, and the device leaves
audio pollution all over the DMR network. We learnt our lesson and DV4mini users are replacing with DVmega's for DMR, which have crystal clean good audio.

I have not used a dv4mini for DMR since last year, and now only for C4FM/P25

The mmdvm homebrew repeater has also matured and sound perfect with the right radio choice.
Ext HCMOS TXCO's are now used for DUE freq ref, and DMR sync is perfect.
A new filtering design is coming soon also.

The majority of connections are worldwide Motorola & Hytera repeaters. APRS reporting, Priv call, msg/data is supported.
Listen here :

http://hose.brandmeister.network/

The Yaesu DR-1X works very well with the mmdvm.

BM activity seen here. the system now can connect TG's to wires-x rooms with perfect audio both ways.

VK 5051 server has two such DMR <<>> wires-x links.

http://44.136.151.11/bm/index.php?page=lh

Adrian ... vk4tux

Not being used to the sound of low bandwidth digital audio can I ask if that is as good as it gets? Sounds no different than Dstar to my ears. I don't expect HiFi but much of it is very difficult to understand.

Check out the MMDVM and MMDVMHost software and the Yaesu DR-1X.
http://xilfy.com/v/Ty3ugvDtqB8

Should work with any repeater really. All that is needed is to bypass any audio filtering.

Alan VK2ZIW

VK3ALB wrote:Not being used to the sound of low bandwidth digital audio can I ask if that is as good as it gets? Sounds no different than Dstar to my ears. I don't expect HiFi but much of it is very difficult to understand.

The hoseline feed is dependant on internet conditions and load. Getting on directly is the best method. VK started the worlds first opensource C4FM reflector with wires-x liinks back into BM DMR.

C4FM traffic here ;

http://c4fm.duckdns.org/

Repeaters such as VK2RAG and VK2RHK, running the DR-1X mmdvm system run three modes, with timed mode lockout, being BM DMR, C4FM & D-Star ;

http://202.182.150.243/

YSF entries = C4FM traffic

http://dashboard.vk2rhk.com/


https://groups.yahoo.com/neo/groups/vkBrandMeister/info