"do you have a drawing or schematic of your system? we aren't trying to go commercial - we are looking into helping a search and rescue unit put up a "relay" craft for better communications in the mountains during searches.…"
"it actually works quite well. i had tested upto 60meters. But not with lambda. I decided against it. Local vendor was asking too much money for it. And the carrier board + lamda was coming out to be equal to most ac-dc power supplies available at…"
"Yes forgot to mention the heatsink. I guess in case of something in air I can use something less than recommended and save some precious grams.
voltage drop can be handled. I can actually ramp up to 270V at ground station. If I remember…"
"Why worry about the volt drop, the 3% I saw earlier does not matter in any way. the volt drop does not limit the distance. This is only relevant for a home or industrial installation
If you start at 240v from your supply and this drops to 220…"
"Well I am building one. Haven't faced much problem till now. By the way I am in the process of buying one tdk-lamda 16v but they say at that voltage in 500gm wattage is only 720W. Also these are not plug and play. They require a parent board…"
"Actually, this idea is not so far fetched, both with (normal working) input voltage and a light weight AC-DC converter. I came across this idea awhile back and looked at using this product (available in either 500W or 1000W…"
"I would still be interested to know "How high is the voltage". Though Hoverfly's tether looks much thicker than cyphy's tether. So I am guessing they settled for more off the self power supplies in the category of 220v or so.
"220v is still quite low to send over thin wires. Even if you take a 1200W quad, which is just about minimum power to carry a power supply and camera, the current at 220V comes out ot be about 6A. 6A wire will be quite thick. The kind of wires that…"
Just noticed you're from Sydney as well - interesting coincidence.
Did you ever get a reply about using XBees to control your plane? I'm contemplating building my own PCB to tie the various components together, but if the ArduPilot can handle an uplink, that would be much easier.
I'm trying to find out if it is possible to control a UAV throw xbee from a laptop? I was reading an old post of yours and was wondering if you had found out if it’s possible. Even if direct control is no possible can new GPS coordinates be uploaded to the ardupilot while in flight?
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