About

Gender

Male


Location

Campbell, CA


About Me:

Electrical Engineer


Please tell us a bit about your UAV interest

Have 2 quads


Hometown:

Campbell, CA


Activity Feed

Charles Linquist posted a discussion
Others have asked similar questions, but I have not seen a satisfactory answer.I'm running PixHawks, and I have 2 GPSs.  I have the option of 1. USE BEST  or 2. BLENDI understand what "Use best" means, but I have noticed that I get a bit less positi…
Apr 25
Charles Linquist commented on Scott Berfield's blog post Adding External LED Indicators and a Piezo Beeper for Arm and GPS Status
"I had all this working when I was using APMs, now that I am flying PixHawks and CUBEs exclusively, I wanted the same functionality."
Apr 25
Charles Linquist replied to Charles Linquist's discussion Telemetry and HD video over 4G
"I have changed my setup a bit.  I have never used any special software like Mavproxy or PiMavlink or anything like that.  I just run normal telemetry through a RPi 3A or 4 and use the Raspberry to connect to Verizon or T-Mobile, and then use SER2NET…"
Mar 22
Charles Linquist replied to Charles Linquist's discussion Analog RSSI from cheap 915MHz radios
"OpenUAS said:
Si1000 based modem with SiK opensource software the 3DR "clones" see https://ardupilot.org/copter/docs/common-3dr-radio-advanced-configu... you asked for analog RSSI, good on the Nice RFD900/868 there are I/O pins left else on those…"
Jan 28
Charles Linquist posted a discussion
I would like to build a stand-alone telemetry tracker based on the analog signal strength of the incoming signal. I plan on using a relatively large DISH antenna or 4 YAGIs, and 4 receivers .  The signal strengths would be tested against each other,…
Jan 21
Charles Linquist replied to Charles Linquist's discussion Telemetry and HD video over 4G
"It says I need dji stuff.  I have my own products, and nothing is dji."
Aug 16, 2019
Charles Linquist replied to Charles Linquist's discussion Telemetry and HD video over 4G
"A couple of things: 
Are you sending streaming video, or just telemetry/control?
One thing comes to mind - If you are using a MiFi, you should be using a hard-wired connection.  Relying on yet another WiFi link is probably not a good idea.  I like t…"
Mar 16, 2019
Charles Linquist left a comment for Charles Linquist
"I dropped this project for awhile because I have been working on a larger gasoline-powered hybrid "hex" with 3+ hour airtimes. I should be able to get everything finalized within a week.  I'll let you know.
Sometime in the next two weeks, I will giv…"
Dec 9, 2018
Charles Linquist posted a discussion
I'm using Windows7/32I used the instructions found at:http://ardupilot.org/dev/docs/building-px4-with-make.htmlI downloaded the PX4 toolchain.exe file and installed it.Then, in "All Programs" I chose "PX4 Software Download", but got a bunch of error…
Sep 15, 2018
Charles Linquist posted a discussion
For many versions of MP, I cannot graph log files.   I can load and "play" the log files, but I cannot GRAPH the telemetry log files.I have tried several computers, removed and re-installed MP, but NOTHING works!I need to be able to graph the logs. …
Jul 21, 2018
Charles Linquist posted a discussion
I'm running Mission Planner 1.3.56. I have been unable to graph logs for some time.  I have upgraded with every release in an attempt to get this working again.  While I can't say exactly when the problem started, it was at least 3 revisions ago.  A…
Jun 18, 2018
Charles Linquist posted discussions
Jun 8, 2018
Charles Linquist replied to Lekhraj Rana's discussion Hybrid power system
"A couple of things to consider:
A permanent magnet motor used as an alternator doesn't have a "field" winding to regulate the voltage. As a result, the output voltage will be almost directly proportional to the RPM, so if you want a constant voltage…"
Jun 8, 2018
Charles Linquist replied to Charles Linquist's discussion STORM 32 Gimbal doesn't work
"I see the area where the problem lies.  When I use the DATA DISPLAY, the accelerometer outputs look normal, but when I use the CONFIGURATION TOOL, the first item -  "Determining Z axis" fails.  It sits there and times out and then says I need to can…"
May 30, 2018
Charles Linquist replied to Charles Linquist's discussion STORM 32 Gimbal doesn't work
"I'm familiar with gimbal setup. I have 7 Alexmos boards and 3 Tarot 3D's. All of them at least TRIED to work as soon as I applied power. I bought the Alexmos as bare boards and built my own gimbals with my 3D printer. Even before calibration, and se…"
May 30, 2018
Charles Linquist posted a discussion
I just received a 3-Axis gimbal with a Storm32 controller.  I loaded the GUI and find that the board has version 090 firmware.  The board is V 1.3.I can read and write to the board with the GUI.  I put a camera on the cradle and attached a 4S batter…
May 30, 2018
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