I just finished another day of testing and this time I used the Anker USB hub power supply with a 10 foot Anker PowerLine+ Micro USB to USB cable to power the Intel Compute Stick. It seemed to work without problems and I put a lot of stress on the Compute Stick trying to keep the CPU usage at 100% while also transferring images from the Compute Stick's micro SD card slot to the host RDP computer (a Mac mini) over the 5GHz WiFi.
Even though the Anker power supply is rated at only 2.4A it seemed to work without a single hiccup (the power supply that comes with the Compute Stick is rated at 3A). Given the rather hopeful results I've had over the last few days I've decided to configure a mobile setup for the Compute Stick. To do that I just ordered two DROK 5V 5A/25W step-down voltage transformers with associated connectors (USB and 12V battery) that will allow me to power both the Compute Stick and the Anker USB3 hub with a 12V deep cycle marine battery.
For the mobile application I also have an Asus 802.11AC router that can run on 12V/1A so this means I'll be able to run everything with a couple of 12V batteries (mount, WiFi router, Compute Stick, USB3 hub, camera cooling, dew heaters, and the associated USB devices connected to the Compute Stick and USB hub).
Then, when I'm at home with A/C power I can just run the Compute Stick and USB3 hub using the Anker 5V power supplies over the same 10 foot Anker PowerLine+ cables that I will use in the field (I purchased a second Anker USB3 hub for backup and also to get a second Anker 5V/2.4A power supply). That will leave only the mount, camera cooling, and dew heaters to be powered by 12V which I can do with my existing 12V power supplies. The last component (while at home) will be the 802.11AC WiFi range extender which is powered by A/C but that won't be a problem since I'll be using A/C to power all of the other 12 and 5 volt adapters.
Thus, when home I'll be able to power everything from the 120VAC mains and while mobile I just need some 12V batteries (and in both locations the cables and connections from the ground upward will all be the same -- 5V or 12V -- except for the WiFi range extender which I will only need at home).
I'm still considering whether I should also take 120VAC when I'm mobile. I already have an inverter that could attach to one of the batteries and I guess I could use that as a form of backup for the 12V-to-5V step-down transformers.
My goal is to have a relatively compact system that will operate about the same whether at home or in the field. So, same signal (devices) and power cabling on the scope in both locations and no need for a notebook computer and everything (or nearly so) controlled over WiFi.
Below is a picture of part of the "solution," the Anker power adapter that works for both the Compute Stick and the USB3 hub and also the 10 foot-long Anker PowerLine+ cable (rated, I believe, at 3A).
Edited by james7ca, 31 May 2016 - 05:25 AM.