About

Gender

Male


Location

Robertsdale, AL


About Me:

Husband of 1, Father of 3, Programmer & Roboticist


Please tell us a bit about your UAV interest

Large off road rovers


Hometown:

Robertsdale, Alabama


Activity Feed

Roby replied to Roby's discussion Don't Be Ripped Off Buying RTK GPS
"u-blox entering the L1/L2 market (via the F9P) may turn out to be a significant moment in robotics history.
Unlike some players, u-blox generally under-promises and over-delivers."
Apr 30, 2018
Roby replied to Roby's discussion Don't Be Ripped Off Buying RTK GPS
"Hyun,
Have you inquired to Andy at ComNav directly?
Keep in mind, if you can't get a good price on the k501g, that you can pick up Unicore's UB352 (GPS/GLONASS L1/L2 20hz) for ~600USD.
http://www.unicorecomm.com/en/product/content_966.html

--Roby"
Jul 21, 2017
Roby replied to Roby's discussion Don't Be Ripped Off Buying RTK GPS
"Hi Adam,
Thanks for reading!  Few thoughts:

Have you contacted Swift and asked for a refund?  I think you may find you'll be $1000 richer without much headache :)

I was able to do several hours of field testing with the Reach this weekend. It's…"
Apr 30, 2017
Roby replied to Roby's discussion Don't Be Ripped Off Buying RTK GPS
Apr 26, 2017
Roby replied to Roby's discussion Don't Be Ripped Off Buying RTK GPS
"600-900 USD in low quantity, depending on RTK output rate (price quoted last year -- should less now)
Noli Sicad said:
How much is this unit - k501g? Less than USD 300 per unit?"
Apr 25, 2017
Roby replied to Roby's discussion Don't Be Ripped Off Buying RTK GPS
"Henrik -- I'm inclined to take you up on your offer. I've got access to an Emlid Reach. Looks like we need to set up a k501g vs M8P vs REACH shown down! Henrik Christophersen said:
Roby, Yes x 3.  Preliminary data sheet is attached. …"
Apr 22, 2017
Roby replied to Roby's discussion Don't Be Ripped Off Buying RTK GPS
"Henrik, Your board with the positional LEDs is super slick. I'm digging that! Did you design it? Is it open source / or are you going to market it?
Hey, you're absolutely right that "tough environment" isn't at all scientific. My backyard testing…"
Apr 21, 2017
Roby replied to Roby's discussion Don't Be Ripped Off Buying RTK GPS
"Thanks Henrik!
I'd love to hear more about the M8P's performance in tough environments. Also, can you speak to it's re-acquisition time after losing fix?
Henrik Christophersen said:
Roby, Very interesting article.  Since 2000 I've used Novatel and…"
Apr 21, 2017
Roby replied to Roby's discussion Don't Be Ripped Off Buying RTK GPS
"Chris, out of curiosity I tried the Piksi again a month or so back -- performance still bad.
Chris Anderson said:
BTW, I have a Piksi, too, but never got it working well. Should I give up, or have the software updates in the past year or so made it…"
Apr 21, 2017
Roby replied to Roby's discussion Don't Be Ripped Off Buying RTK GPS
"Thanks Chris! Hey man, big personal thanks to you for your entire body of work over the past decade -- I've benefitted enormously (silently 'till now) from Pixhawk and this entire community."
Apr 21, 2017
Roby posted a discussion
Guys,If you need precise GNSS for your robots then you need RTK. If you don't know much about RTK, you may lose a lot of money (and hair) on weak RTK GNSS systems. I've written a post to show the beginner what they need for a super solid precision…
Apr 21, 2017
Roby posted a photo
Roby_Ardupilot_Rover
Apr 21, 2017