Diogo Nunes PereiraCompetent

www.piamp.com

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  • 1-7 of 7
  • Diogo Nunes Pereira

    Would love this capability also.

    In the meanwhile I'll keep on using TeamViewer in the iPad to remote my PC.

    Cheers,

    Diogo

  • Diogo Nunes Pereira

    I also second this feature.

    Cheers,

    Diogo

  • Diogo Nunes Pereira

    Hi Ron,

    I find the TV Channel database a very usefull feature in WWB and used it in the past in countries such as Portugal, France, Germany, Czech Republic, the Netherlands, the UK and the US. So I was quite happy to finally find Spain in the drop-down list of Countries in v.6.9; and while doing a postal code lookup, all the regions were there and you could get the postal code for your city you search for...

    But when you finally choose a location, or put a postal code yourself, there is no data regarding the occupied TV channels for that particular city. It just brings no results at all... at least for the ones I looked up.

    I'm based in Barcelona, and the postal codes I tried here (08015, 08004 and 08001) don't bring up any data yet. I imagine it is a lot of work to get this thing right, and when you do get it right, TV channel allocations will change :( (in 2015 they surelly will because of the digital dividend realocation). 

    We'll just have to wait I guess... In the meanwhile it's cool we can crowd-source the TV channels and scan data, the more the better, so kudos to everybody who keeps on sharing!

    Cheers,

    Diogo

  • Diogo Nunes Pereira

    Oh boy...

    I guess I'm waiting a while to update the firmware to my units then!

    Hope you managed to un-brick them.

    Keep us posted...

    Cheers,

    Diogo

  • Diogo Nunes Pereira

    Pete Erskine's RF Coordination for Roadies is a valuable read. 

    Download here!

    Cheers 

    Diogo

  • Diogo Nunes Pereira
    Hi Ron,

    thank you for the quick reply.

    a) Now that I know a little bit more about front-end filters than yesterday, your answer makes a lot more sense. These systems have a pretty narrow tuning range (16MHz), so I guess you wouldn't need a tracking filter here. Still, there could still be a really narrow tracking filter, closer to the bandwidth of the modulated signal, am I right?

    Anyway, I'll be with a coleague next week who has a closer contact with the Overline Systems guys (and speaks french better that I do); I'll get his input into this question.

    B) or B) Working on it. I'm compiling a bunch of frequency tables from different manufacturers (with profiles already in WWB6) to see if I can get one that's similar to the UC specs, these being:

    16MHz tuning range, 22 frequency presets, spacing 250kHz. Any help, anyone?

    c) Yeaahh... I felt it wasn't my smartest question of all time, but anyway...

    From looking at the different settings (and my own common sense) I figured out that the more space, the better, and I understand that 3rd orders are the "louder" IM products out there: 2Tx/3rd order being worse than 3Tx/3rd order, and this being worse than 2Tx/5th order... But, how much is enough?

    For example, the settings for a Sennheiser 3000 system in Sennheiser SIFM are:

    2Tx IM(3) = 75kHz
    2Tx IM(5) = 75kHz
    3Tx IM(3) = 75kHz

    And in WWB6 for the same system we have:

    2Tx / 3rd Order = 200kHz
    2Tx / 5th Order = 150kHz
    3Tx / 3rd Order = 150kHz

    It theory SIFM should find more frequencies, but this would mean those frequencies would be more prone to IM interference, right?

    I guess I also might need to have someone from Overline Systems to tell me how narrow those filters are in order to get the apropriate values in the profile.

    Thank you again, hope to ear more on this topic soon.

    Salud,

    Diogo
  • Diogo Nunes Pereira
    +1

    This would be a great feature in did. Even more since Axient Spectrum Analyser covers the frequency range of most 2-way radios.

    Salud

    Diogo
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