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Re: [BCD396XT] Re: marine AIS and BCD396XT

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  • Walter Jinright
    Brian, Thanks for those links and info. I already follow ACARS (Commercial / Civilian Aircraft), APRS, POCSAG, MCT/MDT (CAD Monitoring), just starting to
    Message 1 of 41 , Apr 13, 2011
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      Brian, Thanks for those links and info. I already follow ACARS (Commercial / Civilian Aircraft), APRS, POCSAG, MCT/MDT (CAD Monitoring), just starting to tinker with Mode-S Military Aircraft, Digital Encryption Decoders, and UniTrunker (found a bit boring). But I had only heard something once before about AIS. I remember when Pop Comm had the article about HF phasing out for Maritime use years ago (I am almost 40 and been using scanners since I was maybe 7 or 8, started with an old Bearcat 8 channel VHF Hi/Low - UHF crystal controlled (The big black metal scanner with the big speaker and 8 red LEDs that would "chase" across the front, with a lock-out / hold switch at each LED). My Grandfather gave me when I was 7 I believe. Then a few years later, he gave me one of the first portable 4 channel crystal controlled scanners, which I actually found the 159.150 MHz crystal for that one when I was cleaning my garage last year, (the old Escambia County, FL Sheriff Channel).
      Wow, has radio technology come a LOOONG way since then! I never cease to be amazed at the ever changing technology, but a bit frustrated when they started using systems with ProVoice, etc... at least until that handy, very tiny bit of code was written to decode most of it ;-) But then again, there seems to be a new type of encryption every time one is broken :-(
      Anyway, thanks again for the links, I will have to check out AIS, as VHF carries very well here on the Gulf of Mexico. I can hear ship voice channels for hundreds of miles, and aircraft all the way out over the Atlantic Ocean for most of the year, I guess it is the ducting or inversion layers over the warm water here on the Gulf Coast?

      Have a great night,
      Walter J. - In The Middle of; Pensacola NAS, KPNS, NAS Whiting NSE & NDZ, 2R4, and Eglin AFB / Hurlburt Field

      ----- Original Message -----
      From: Brian
      To: BCD396XT@yahoogroups.com
      Sent: Wednesday, April 13, 2011 9:50 PM
      Subject: RE: [BCD396XT] Re: marine AIS and BCD396XT

      Just buy a AIS receiver and have it upload to MarineTraffic.com :)
      Use the 396XT for other stuff ;)

      AIS-1 - Marine AIS Receiver
      Aimed at Marine enthusiasts, the unit will feature a full marine band radio and, at the same time,
      full on-board multi channel AIS decoding with Ethernet and USB connectivity.
      <http://www.kinetic.co.uk/ais-1.php> (Coming soon).

      AISnet is a new AIS receiver for use as an AIS base station at home or in the office.

      <http://www.milltechmarine.com/> - Your AIS Experts on Receivers.




      -----Original Message-----
      From: brunovianna
      Sent: Wednesday, April 13, 2011 12:59 PM
      To: BCD396XT@yahoogroups.com
      Subject: [BCD396XT] Re: marine AIS and BCD396XT

      Yeah, I figured it wouldn't... and adding the discriminator tap didn't look so difficult, so I gave
      it a try. Guess what? It works already!

      I connected the tap connected to the mic in, installed shipplotter... and I'm getting data from the
      ships around already.

      Thanks guys

      [Non-text portions of this message have been removed]
    • Lance
      UPMan, Smoke Signals.. Very funny... Thanks your input with 396XT. ... [Non-text portions of this message have been removed]
      Message 41 of 41 , Apr 18, 2011
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        "Smoke Signals.."

        Very funny...

        Thanks your input with 396XT.

        On Apr 18, 2011, at 12:27 PM, Uniden UPMan wrote:

        > Ignore the thread title. The discussion of legality was regarding MDT (Mobile Data Terminals used in police cars) decoding, which is illegal to decode in the US under a Federal law known as the ECPA (Electronic Communications Privacy Act). This is the law that also makes intentionally monitoring a cell phone or cordless phone call that you are not a party to illegal (and does not discriminate between analog, digital, encrypted, encoded, or smoke signals).
        > UPMan
        > From: Bruno Vianna <brunovianna.listas.0@...>
        > >To: BCD396XT@yahoogroups.com
        > >Sent: Monday, April 18, 2011 1:18 PM
        > >Subject: Re: [BCD396XT] Re: marine AIS and BCD396XT
        > >
        > >
        > >
        > >I don't know about the legality of decoding in the US (I'm Brazilian) but a
        > >system like AIS would worthless if the regular amateur boat owner couldn't
        > >decode the messages. Its main goal is to avoid collisions.
        > >
        > >On Mon, Apr 18, 2011 at 5:08 AM, tvnewsnj <tvnews@...> wrote:
        > >
        > >>
        > >>
        > >>
        > >> It has been many years since I looked at the laws regarding DECODING.
        > >>
        > >> I THINK the federal laws make decoding of ENCRYPTED communication illegal.
        > >> I don't think decoding of non encrypted communications is a problem. I must
        > >> admit that as I type this I find myself using the word "communications" and
        > >> not the word "data". The more I think about this data may be covered under
        > >> another part of the law from communications. Just shows how you word
        > >> something can give a totally different message. Oh well!
        > >>
        > >>
        > >> --- In BCD396XT@yahoogroups.com, "shelleysh1@..." <shelleysh1@...> wrote:
        > >> >
        > >> > *smile* This will be my one and only post on this (and technically, this
        > >> topic shouldn't be on this group anyway)...
        > >> >
        > >> > I'm sorry Walter, your attorney is mistaken (attorneys are fallible, you
        > >> know LOL). It is illegal to decode (decode being the keyword, not capture)
        > >> the transmissions. Contrary to your friends in law enforcement, who clearly
        > >> don't know the law, I do work with law enforcement and have for over 16
        > >> years. And I do know the law on decoding MDTs and the like...you cannot, as
        > >> a citizen, do it legally. It's against Federal law. Capturing coded
        > >> transmission is fine, as long as one is not using any hardware or software
        > >> which can decode what's being transmitted, unless they're working within the
        > >> guidelines of the law.
        > >> >
        > >> > No need for me to be any further involved in the discussion. I've not
        > >> given an opinion, I'm simply (and clearly) pointing out the Federal
        > >> guideline/law for you and anyone else who might (or might not) be
        > >> interested.
        > >> >
        > >> > Shell
        > >> >
        > >> > --- In BCD396XT@yahoogroups.com, "Walter Jinright" <ipnfla124@> wrote:
        > >> > >
        > >> > > Well for one, I do not always have the PC tied up decoding stuff, so if
        > >> any given moment I was "raided", they would not find anything unlawful going
        > >> on. Second, It is ONLY "Federal Time", if you are caught, prosecuted, lose
        > >> and are CONVICTED! Again, at any given period in time, I do not have the
        > >> equipment even put together, and a PC and a scanner is not unlawful for me
        > >> to have, so again, "they" would not find anything, and I could then litigate
        > >> against "them", for unlawful search from a simple post I could have "made
        > >> up", to post in an open forum, as there is not one soul in this forum or
        > >> that will read this forum, and say they have ever seen me decode anything!
        > >> > > So it is all a matter of interpretation of facts, not hearsay that one
        > >> write in an open forum. But I could walk through Disney World and find
        > >> probably 100 people easy using GMRS "bubble pack" radios with no license,
        > >> which is just as great of offense, or if you interpret it a few different
        > >> ways, a greater offense? It is all relative, and what does it matter if no
        > >> one is causing interference, harm, or using the information to commit a
        > >> crime?
        > >> > > I have an attorney / family member that specializes in patents and
        > >> media (like broadcast), and is very knowledgeable about the laws, and agrees
        > >> with what I just wrote (the very reason I wrote this much later, as to get
        > >> REAL legal input).
        > >> > >
        > >> > > Walter J. - In The Middle of; Pensacola NAS, KPNS, NAS Whiting KNSE &
        > >> KNDZ, 2R4, and Eglin AFB / Hurlburt Field
        > >> > >
        > >> > >
        > >> > >
        > >> > > ----- Original Message -----
        > >> > > johnstark wrote:
        > >> > > > I'm still at
        > >> > > > a loss why the OP openly admits in a public forum
        > >> > > > to decoding this stuff, that's Federal Time! There are however
        > >> provisions
        > >> > > > for law enforcement to be able to monitor these transmissions for
        > >> > > > investigations but that's the ONLY exception to the law.
        > >> > > >
        > >> > >
        > >> > >
        > >> > > [Non-text portions of this message have been removed]
        > >> > >
        > >> >
        > >>
        > >>
        > >>
        > >
        > >[Non-text portions of this message have been removed]
        > >
        > >
        > >
        > >
        > >
        > [Non-text portions of this message have been removed]

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