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rclocher3
rclocher3
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Hy iI would like to play around with openBTS/yateBTS (experimental, no 24/7 run). What iI would like to do is to modify a UMTS/GSM Modulemodule or Mobilephonemobile phone so it operates in a frequency that can be used with a HAM licencelicense.

I looked around and think in my location(Austria) i, Austria, I can use this frequency because in my area there isare no active HAM'shams that use ATV: 1272,0 – 1290,994 Has any body MHz. Has anybody ever diddone this before? Or knowsDoes anybody know a good Modulemodule or Phonephone where this can be Archivedarchived?

I first thought about just replacing the crystal and bypassbypassing the filters, but i can't access them all, because some of them are in the chip. An otherAnother idea was to use a mixer to offset the output frequency and place filters behind this.

So the questions are:

  • Is it okay to use an ATV frequency when iI am shuresure no other ham member getsgets disturbed.?
  • How should i modify an existing chip/mobilephone ismobile phone?
  • Is one of the ideas above good enougthenough for experimental usage?

Hy i would like to play around with openBTS/yateBTS (experimental, no 24/7 run). What i would like to do is to modify a UMTS/GSM Module or Mobilephone so it operates in a frequency that can be used with a HAM licence.

I looked around and think in my location(Austria) i can use this frequency because in my area there is no active HAM's that use ATV: 1272,0 – 1290,994 Has any body ever did this before? Or knows a good Module or Phone where this can be Archived?

I first thought about just replacing the crystal and bypass the filters but i can't access them all, some of them are in the chip. An other idea was to use a mixer to offset the output frequency and place filters behind this.

So the questions are:

  • Is it okay to use ATV frequency when i am shure no other ham member gets disturbed.
  • How should i modify an existing chip/mobilephone is one of the ideas above good enougth for experimental usage?

I would like to play around with openBTS/yateBTS (experimental, no 24/7 run). What I would like to do is to modify a UMTS/GSM module or mobile phone so it operates in a frequency that can be used with a HAM license.

I looked around and think in my location, Austria, I can use this frequency because in my area there are no active hams that use ATV: 1272,0 – 1290,994 MHz. Has anybody ever done this before? Does anybody know a good module or phone where this can be archived?

I first thought about just replacing the crystal and bypassing the filters, but i can't access them all, because some of them are in the chip. Another idea was to use a mixer to offset the output frequency and place filters behind this.

So the questions are:

  • Is it okay to use an ATV frequency when I am sure no other ham gets disturbed?
  • How should i modify an existing chip/mobile phone?
  • Is one of the ideas above good enough for experimental usage?
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maxbit89
maxbit89
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Build a HamRadio Friendly UMTS Module

Hy i would like to play around with openBTS/yateBTS (experimental, no 24/7 run). What i would like to do is to modify a UMTS/GSM Module or Mobilephone so it operates in a frequency that can be used with a HAM licence.

I looked around and think in my location(Austria) i can use this frequency because in my area there is no active HAM's that use ATV: 1272,0 – 1290,994 Has any body ever did this before? Or knows a good Module or Phone where this can be Archived?

I first thought about just replacing the crystal and bypass the filters but i can't access them all, some of them are in the chip. An other idea was to use a mixer to offset the output frequency and place filters behind this.

So the questions are:

  • Is it okay to use ATV frequency when i am shure no other ham member gets disturbed.
  • How should i modify an existing chip/mobilephone is one of the ideas above good enougth for experimental usage?