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SETTING UP DIGITAL REPEATER

  • 10-08-2015 8:45pm
    #1
    gerry sat
    Registered Users Posts: 82 ✭✭


    All,

    Thinking of setting up a repeater up here in Donegal 70,2 metres.
    Looking at the Yeasu's fusion unit both C4FM and FM analogue, or D-Star.

    I don't think neither are used in the republic but think it would be a good project, open to all suggestions.

    Regards,

    Gerry


Comments

  • #2
    humaxf1
    Registered Users, Registered Users 2 Posts: 865 ✭✭✭humaxf1


    DMR is emerging in UK, Europe wide and of course in America. Look up DMARC network. The repeater linking feature is fantastic.

    Might be a better option and more accessible?

    DMR radios are readily available and reasonably priced. TYT MD-380 or CS-700 handhelds. The MD-380 is analogue too so handy for FM 70cm

    Best of luck in your venture.


  • #3
    thelordgod
    Registered Users, Registered Users 2 Posts: 215 ✭✭thelordgod


    The Limerick 2m repeater is a yaesu fusion unit. I don't think the digital side has been used apart from testing as there are only 3 digital handhelds in the country that I know of. It got excellent audio reports. You will also need to apply for another call sign from comreg if you go ahead.


  • #4
    gerry sat
    Registered Users Posts: 82 ✭✭gerry sat


    thelordgod wrote: »
    The Limerick 2m repeater is a yaesu fusion unit. I don't think the digital side has been used apart from testing as there are only 3 digital handhelds in the country that I know of. It got excellent audio reports. You will also need to apply for another call sign from comreg if you go ahead.

    Very Interesting, I have the yeasu Ft 991, must contact them.
    Looking at Comreg Paper at the moment,

    Thanks,

    Gerry


  • #5
    thelordgod
    Registered Users, Registered Users 2 Posts: 215 ✭✭thelordgod


    I suppose it would be nice to know how many have digital capability in the country but you could be throwing your money away just to talk to yourself. I would imagine that most 4m operators would be into dx rather than using repeaters.


  • #6
    watty
    Registered Users, Registered Users 2 Posts: 32,417 ✭✭✭✭watty


    D-Star is prehistoric, patent encumbered garbage from Icom. Though Kenwood and Yaesu may have licensed it for a couple of rigs.
    The voice codec is terrible.
    The performance is awful compared to modern modulation schemes.

    Far better to experiment with narrow band versions of DOCSIS or DVB-T2 (they can use any channel width by lower symbol rate (DOCSIS) or less carriers/Lower symbol rate).
    For VOIP there are FAR better free codecs than the expensive to licence proprietary one in D-Star, which is the worst codec in general use.

    DVB-C and DVB-S and DVB-T are are better than D-Star. Even DAB is better.
    There is also DRM which allows very narrow band working.
    All of the existing commercial not D-Star systems can be adapted in channel size, all are cheaper, all work better and for receive you can often use a €12 USB TV Stick 42MHz to 1200MHz for any non-Dstar digital mode!


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