> The Chinese have no concept of, or ignore, intellectual property rights. Do not forget that China is a communist government and culture.. And has been since about 1948. So no one left who was raised under a different system of government. Under communism, every thing is owned by "the people." If people can't individually own land or property, how could they possibly own something like an idea? It is a fundamentally incomprehensible concept. So they don't think they are doing something wrong when use someone else's idea, or software, or design. But they have figured out that their foreign customers get all upset when they do re-use their ideas and designs. So the government is making "adjustments" so that they can fit in with the rest of the world, but only recently. Enough off-topic, sorry. --- Graham == On Thu, Feb 22, 2018 at 9:42 PM, Ruslan Nabioullin <rnabioullin@gmail.com> wrote: > On Thu, Feb 22, 2018 at 5:48 PM, djl <djl@montana.com> wrote: > > Fine. The Chinese have no concept of, or ignore, intellectual property > > rights. > > Which is not necessarily perverse---there exist people (most notably > those of the so-called Pirate Party movements worldwide) who deem the > legal theories of the copyright and the patent to be absurd. That is > all that I will say, for I do not wish to excessively deviate from the > topic of discourse. > > -Ruslan > > -- > Ruslan Nabioullin > Wittgenstein Laboratories > rnabioullin@gmail.com > (508) 523-8535 > 50 Louise Dr. > Hollis, NH 03049 > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/ > mailman/listinfo/time-nuts > and follow the instructions there. >

Hi So, after only two months in transit my examples of the “Chinese GPS Antenna” are here to poke at. They are from www.stotoncn.com <http://www.stotoncn.com/> and are labeled as being their part number GN-GGB0710. They clearly show 3.3V to 18V as the operating voltage on the box they came in and on the antennas. All labeling is in English. It appears they will happily sell you as many as you want on AliExpress for ~$67. All data indicates they will run L1/L2 GPS, Glonass, and Beidu. That is what the labeling on the parts indicates. There is some conflicting data on the web about L5 operation …. we’lll see how that part goes. All packaging, labeling, and QA stickers match what show up in pictures on the web site. As best I can tell from Mr Google , they are indeed legit 3.3V to 18V devices. Bob > On Feb 22, 2018, at 2:48 PM, John Green <wpxs472@gmail.com> wrote: > > For those who have been following the saga of the Chinese made, eBay > purchased antenna that failed, I may have an answer as to why it failed. > I had to destructively disassemble it. I just could not get it apart any > other way. I used a Chinese version of a Dremel tool with a metal saw > blade. After making a huge mess with plastic particles everywhere, it > revealed a circular FR4 board with two patch antennas mounted, one atop the > other. I assume the smaller one to be the L1, and the larger to be L2. This > part looks almost identical to the Trimble Microcentered antenna I worked > on recently. On the back side of this is a metal shield about 3 by 3 > inches soldered to the circular FR4 board. I switched to a abrasive wheel > and took off some of the solder holding the shield to the board. Then, > using a small screw driver, I went around the shield breaking the solder > loose. The shield off revealed that the coax goes to some capacitors that > couple RF out and through an inductor with some capacitors to ground and > finally to a SOT23-5 package labelled LK33. This appears to be a Micrel > MIC5203 3.3 volt regulator. It is shorted on the input side. I believe that > putting anything over 7.5 volts on the input exceeded the power dissipation > rating and caused it to fail. I plan on wiring up a more robust 3.3 volt > regulator in its place and trying again. It looks like I will be able to re > solder the shield back. The watertight integrity is gone for good. I think > I can find a plastic box I can mount it in so I can at least experiment > with it. I have sent a message to the seller detailing my findings. The > Micrel part lists a 20 volt maximum input voltage, so in theory at least, > this might have worked, and there might be some of these out there that > don't fail. > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there.

    Veritas liberabit vos. -- Quid est veritas?
"If you can’t measure it, you can’t improve it." - Lord Kelvin

Yo Bob! On Wed, 28 Mar 2018 16:37:07 -0400 Bob kb8tq <kb8tq@n1k.org> wrote: > So, after only two months in transit my examples of the “Chinese GPS > Antenna” are here to poke at. Cool. I just ordered one. I'm finding some GPS need the 40dB LNA this claims, as opposed to the usual 23dB or so. Then I can stop swapping L1/L2 and L1/GLONASS antennas. RGDS GARY --------------------------------------------------------------------------- Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703 gem@rellim.com Tel:+1 541 382 8588 Veritas liberabit vos. -- Quid est veritas? "If you can’t measure it, you can’t improve it." - Lord Kelvin