You don't need RFI interference in GPS L1 band to disable GPS. Ublox MAX-8Q and all other MAX series modules do not have *any* antenna input preselector filtering - just an impedance match. Their ante

Joe, 1GHz SMA cable is different from 10GHz SMA cable and metrology-grade cable is different from something you can cancel-out during measurements - you need to specify what you are trying to do. Indu

Few more modes: Majority of UK flights use[d] RTTY Some UK flights have used THOR16 Many flights use LoRa modulation now There were flights on the continent using voice FM transmissions. I had a B-cla

In Australia they went there yesterday too.

Hello Bill, I am very pleased you have made it! It's not the best season for picos in the northern hemisphere right now and yet if you try hard enough nature seems to be willing to cooperate. Cheers L

what is "posit"? Is it some sort of position?

Hi Ron, Is this an actual picture of the tracker that is flying now as K6RPT-12? Telemetry and amount of debris suggests that it used double panels wired in series? The webpage image shows series conn

Hi Hank, There is a very good resource maintained here: http://x-f.lv/dev/habitat-graphs/payload/B-64#g/altitude The data set includes live and backlog telemetry received via APRS and directly via UHF

Well of course it decodes to the *6th of October* when my script uploads it to spacenear.us ...

Mark, That's what all B-flights do as well. There is no compressed timestamp available in APRS specification so i just dreamt up my own. There are encoded time and datestamps in each realtime and back

Welcome to Europe guys, well done! http://aprs.fi/#!mt=roadmap&z=11&call=a%2FAETH22-1&timerange=3600&tail=3600

Thanks, Jerry! Very impressive. I did not even know that aprs.fi allows the use of overlays. Leo

Guys, I am a bit confused. Have we started filing total travelled distance in ARHAB great circle longest distance table? PS-13 shows 7,619 miles / 14,110km as distance between its terminal points howe

Thanks for your support, discussions and help with tracking B-s around the globe, guys! A lot of people contributed in a lot of ways into this trip. One thing I have to say - it's not a hobby for impa

Barry, ISS beaconing attempts from balloon payload have been around way before Alan. For example, Thomas KT5TK http://kt5tk.wordpress.com/ has been doing it with 100mW but unfortunately did not have a

Jerry, As of now (23 UTC 25 July) the GFS05 dataset has not been updated by NOAA for more than 40 hours (current is 06 UTC 20140724) so it is pretty much useless considering that it only covers 84 hou

James, This is correct, the onboard flight data recorder has the circular buffer containing 64 entries spaced at 2 hour intervals which equates to just over 5 days. The content of the data log is cont

Good morning And on top of that B-63 M0XER-6 after long AWOL appeared over Alaska http://aprs.fi/#!call=a%2FM0XER-3

Steve, I have used your map as my prime reference for localised frequency switching. I'm glad I can say "Thank you!" for creating it in the first place. By the way one of the the balloons went to Indi

Hi Michael, Sorry, my email state at the moment is "Inbox (64235 messages, 46452 unread)" after spam taken out. Thank you for appreciation of the flight and keeping an eye on it! B-62 was custom SP en