Hi Here’s an ad for a somewhat different antenna with some barely readable bandwidth testing data:
https://www.aliexpress.com/item/RTK-system-HIGH-GAIN-GNSS-antennas-GPS-Glonass-Galileo-Bei-Dou-High-Precision-waterproof-survey-antenna/32826409839.html?aff_platform=promotion&cpt=1548110255481&sk=i6Ujaqn&aff_trace_key=b8dab77ba20845429ffa1fc31fd6d51f-1548110255481-09708-i6Ujaqn&terminal_id=2cf8f236a50d4cd79c67cb1d789ca57c <https://www.aliexpress.com/item/RTK-system-HIGH-GAIN-GNSS-antennas-GPS-Glonass-Galileo-Bei-Dou-High-Precision-waterproof-survey-antenna/32826409839.html?aff_platform=promotion&cpt=1548110255481&sk=i6Ujaqn&aff_trace_key=b8dab77ba20845429ffa1fc31fd6d51f-1548110255481-09708-i6Ujaqn&terminal_id=2cf8f236a50d4cd79c67cb1d789ca57c> The antenna also shows up on other sites from time to time. It appears to run off of 3.3V it’s a bit more expensive than the first one. It’s still about 1/10th the price of some of the non-Chinese sourced products. The data in this ad https://www.aliexpress.com/store/product/New-RTK-system-GNSS-antennaS-GPS-Glonass-Beidou-High-Precision-waterproof-survey-antenna-HIGH-GAIN-support/1920594_32805500077.html?spm=2114.12010612.8148356.60.2d4f6261ui9nrX <https://www.aliexpress.com/store/product/New-RTK-system-GNSS-antennaS-GPS-Glonass-Beidou-High-Precision-waterproof-survey-antenna-HIGH-GAIN-support/1920594_32805500077.html?spm=2114.12010612.8148356.60.2d4f6261ui9nrX> That *might* apply to the first one I mentioned (or might not …) suggests that this one may be a better bet for E5. Again, no experience with the seller. No idea what antenna you actually will get. The world may end tomorrow :) Bob > On Jan 21, 2019, at 2:44 PM, MLewis <[email protected]> wrote: > > Like these? > http://www.tallysman.com/index.php/gnss/products/antennas-triple-band/ > > On 21/01/2019 12:33 PM, Bob kb8tq wrote: >> Hi >> >> To be more precise, what you want is a L1/L2/L5 triple band antenna. >> >> Bob >> >>> On Jan 21, 2019, at 11:32 AM, Bob kb8tq <[email protected]> wrote: >>> >>> Hi >>> >>> Based on the F9P data sheet, you will need an L1 / L2 antenna that is wide >>> enough >>> to get the Galileo E5B as well as the Glonass L1OF and L2OF bands. The >>> gotcha >>> is that (so far) I have not found a gain number for the target antenna. As >>> we have >>> found on other modules, you do want to get the right gain. L1/L2 antennas >>> range >>> from 50+ db down to below 30 db. Simply tacking a pad on a 50 db antenna is >>> not >>> the best way to do things if you are in an urban area. >>> >>> There also is the issue of powering the antenna. It is not clear what sort >>> of antenna >>> bias circuit the SparkFun module has on it. If it simply is using the >>> module’s bias setup >>> that also could be an issue. Max Vcc on the module is 3.6V. The VCC_RF pin >>> can have >>> main Vcc - 0.1V max on it. If that *really* means that 3.3V is about it for >>> antenna bias, >>> that eliminates roughly 100% of all the used antennas out there. It also >>> eliminates a >>> number of the new ones. >>> >>> If you put in an external bias setup, there are a lot of antennas to pick >>> from on eBay. >>> They come and go. The used stuff generally will be 12V powered. It also is >>> likely >>> to have a pretty good data sheet on it. The new stuff from China seems to >>> be sold >>> by a variety of people who pop up for a while and then go away for a while. >>> Making >>> sure of what you are getting is a bit tough as a result. There are >>> extensive stories >>> in the archives ….. >>> >>> Bob >>> >>>> On Jan 21, 2019, at 10:21 AM, Graham / KE9H <[email protected]> wrote: >>>> >>>> What kind of antenna is needed to simultaneously hear all of the systems at >>>> once? >>>> My PCTel GPS antenna has a filter that limits it to only the US GPS system. >>>> >>>> --- Graham >>>> >>>> == >>>> >>>> On Mon, Jan 21, 2019 at 4:01 AM Dustin Marquess <[email protected]> >>>> wrote: >>>> >>>>> If DigiKey's pricing is accurate, the ZED-F9T is $13.89 more than a >>>>> ZED-F9P. I would have gladly paid $14 more for a version of the >>>>> SparkFun board using the T(iming) version instead :(. >>>>> >>>>> On Mon, Jan 21, 2019 at 12:10 AM Bob kb8tq <[email protected]> wrote: >>>>>> Hi >>>>>> >>>>>> From a *very* quick read of the doc’s: >>>>>> >>>>>> 1) The device *does* have a position hold capability >>>>>> >>>>>> 2) There is some level of data on the time pulse. It it only 1 ns >>>>> resolution? >>>>>> 3) It does appear to support Galileo and Glonas in addition to GPS. >>>>>> >>>>>> 4) It is clearly multi-band for GPS. It is unclear from a quick read if >>>>> it is multi-band for the other systems. >>>>>> 5) If you get one, make sure you have the RF cable connector it needs. >>>>>> >>>>>> 6) I have not (yet) found a recommendation for the antenna gain. >>>>>> >>>>>> Again, all from a quick read …. >>>>>> >>>>>> Bob >>>>>> >>>>>>> On Jan 20, 2019, at 5:42 PM, Mark Sims <[email protected]> wrote: >>>>>>> >>>>>>> Sparkfun is now selling the Ublox F9P L1/L2 GPS receiver module on a >>>>> board ($219). The F9P supports GPS/Galileo/Glonass/Beidou and tracks >>>>> L1/L2 >>>>> data. It outputs carrier phase data and has survey-in and fixed position >>>>> support along with RTK support (10 mm accuracy). Looks like the F9P has >>>>> 1 >>>>> time pulse output. >>>>>>> _______________________________________________ >>>>>>> time-nuts mailing list -- [email protected] >>>>>>> To unsubscribe, go to >>>>> http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com >>>>>>> and follow the instructions there. >>>>>> >>>>>> _______________________________________________ >>>>>> time-nuts mailing list -- [email protected] >>>>>> To unsubscribe, go to >>>>> http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com >>>>>> and follow the instructions there. >>>>> _______________________________________________ >>>>> time-nuts mailing list -- [email protected] >>>>> To unsubscribe, go to >>>>> http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com >>>>> and follow the instructions there. >>>>> >>>> _______________________________________________ >>>> time-nuts mailing list -- [email protected] >>>> To unsubscribe, go to >>>> http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com >>>> and follow the instructions there. >> >> _______________________________________________ >> time-nuts mailing list -- [email protected] >> To unsubscribe, go to >> http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com >> and follow the instructions there. > > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > and follow the instructions there. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
