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Old August 17th 17, 12:33 PM posted to uk.radio.amateur,rec.radio.amateur.antenna
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Default Droning on ... vertical wire antennae

Balloons and kites we've had, but what of drones to
hold the wire antenna aloft?

Ok, I hear you say about battery life, but taking
my cue from the Tesla / Edison wars, the AC / DC
arguments for transmitting power over long distances ...


''' what if the antenna were to be made from a bifilar
wire, bell flex or twin kevlar for lightness, with your
RF fed in parallel to both conductors, but superimposed
on the pair as separate wires, say, 20kV at 5kHz to
be transformed and "rectumfried" once it reaches the drone?

Then, you would not even need 2G4Hz control, it could be
superimposed of the HVAC.

Just an idea ...


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Old August 17th 17, 02:00 PM posted to uk.radio.amateur,rec.radio.amateur.antenna
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Default Droning on ... vertical wire antennae

On 17/08/2017 12:33, Gareth's Downstairs Computer wrote:
Balloons and kites we've had, but what of drones to
hold the wire antenna aloft?

Ok, I hear you say about battery life, but taking
my cue from the Tesla / Edison wars, the AC / DC
arguments for transmitting power over long distances ...


''' what if the antenna were to be made from a bifilar
wire, bell flex or twin kevlar for lightness, with your
RF fed in parallel to both conductors, but superimposed
on the pair as separate wires, say, 20kV at 5kHz to
be transformed and "rectumfried" once it reaches the drone?

Then, you would not even need 2G4Hz control, it could be
superimposed of the HVAC.

Just an idea ...


It would radiate- even allowing for the twin wires, therefore you would
need a licence.

Then there are the practical things like insulation at 20kV, do you
really think 'bell wire' is designed for that?

At times it is almost like you deliberating spout silly ideas to get a
reaction but I suspect your engineering skills are really that bad you
don't know the ideas are silly.



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Old August 17th 17, 11:24 PM posted to uk.radio.amateur,rec.radio.amateur.antenna
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Default Droning on ... vertical wire antennae

In message , Gareth's Downstairs Computer
writes
Balloons and kites we've had, but what of drones to
hold the wire antenna aloft?

Ok, I hear you say about battery life, but taking
my cue from the Tesla / Edison wars, the AC / DC
arguments for transmitting power over long distances ...


''' what if the antenna were to be made from a bifilar
wire, bell flex or twin kevlar for lightness, with your
RF fed in parallel to both conductors, but superimposed
on the pair as separate wires, say, 20kV at 5kHz to
be transformed and "rectumfried" once it reaches the drone?

Then, you would not even need 2G4Hz control, it could be
superimposed of the HVAC.

Just an idea ...

I have already suggested 'aerial powering' in RSGBTech. Use twin wire
aerial, and feed DC power (via chokes) up it to the drone.
--
Ian
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Old August 17th 17, 11:36 PM posted to uk.radio.amateur,rec.radio.amateur.antenna
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Default Droning on ... vertical wire antennae

On 17/08/2017 23:24, Ian Jackson wrote:
In message , Gareth's Downstairs Computer
writes
Balloons and kites we've had, but what of drones to
hold the wire antenna aloft?

Ok, I hear you say about battery life, but taking
my cue from the Tesla / Edison wars, the AC / DC
arguments for transmitting power over long distances ...


''' what if the antenna were to be made from a bifilar
wire, bell flex or twin kevlar for lightness, with your
RF fed in parallel to both conductors, but superimposed
on the pair as separate wires, say, 20kV at 5kHz to
be transformed and "rectumfried" once it reaches the drone?

Then, you would not even need 2G4Hz control, it could be
superimposed of the HVAC.

Just an idea ...

I have already suggested 'aerial powering' in RSGBTech. Use twin wire
aerial, and feed DC power (via chokes) up it to the drone.


Pointless referring to a resource controlled by Adolf Reay.

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Old August 17th 17, 11:55 PM posted to uk.radio.amateur,rec.radio.amateur.antenna
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Default Droning on ... vertical wire antennae

On 17/08/2017 23:24, Ian Jackson wrote:
In message , Gareth's Downstairs Computer
writes
Balloons and kites we've had, but what of drones to
hold the wire antenna aloft?

Ok, I hear you say about battery life, but taking
my cue from the Tesla / Edison wars, the AC / DC
arguments for transmitting power over long distances ...


''' what if the antenna were to be made from a bifilar
wire, bell flex or twin kevlar for lightness, with your
RF fed in parallel to both conductors, but superimposed
on the pair as separate wires, say, 20kV at 5kHz to
be transformed and "rectumfried" once it reaches the drone?

Then, you would not even need 2G4Hz control, it could be
superimposed of the HVAC.

Just an idea ...

I have already suggested 'aerial powering' in RSGBTech. Use twin wire
aerial, and feed DC power (via chokes) up it to the drone.


DC makes more sense, even with a balanced feed radiation is likely an
therefore a licence would be needed, even at 5kHz. You may well get an
NoV, they've been issued for such low frequencies before to my
knowledge, but not for drones etc.

I'm not sure how much lift these drones have, I suspect not a lot.

The idea does have its merits. With a bit of ingenuity, you could
arrange a 'station keeping' control using GPS and possible some sensors
(body rates and acceleration etc) to ensure the drone keeps the wire in
place.

--

Suspect someone is claiming a benefit under false pretences? Incapacity
Benefit or Personal Independence Payment when they don't need it? They
are depriving those in real need!

https://www.gov.uk/report-benefit-fraud


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Old August 18th 17, 02:56 PM posted to uk.radio.amateur,rec.radio.amateur.antenna
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Default Droning on ... vertical wire antennae


"Brian Reay" wrote in message
news
I'm not sure how much lift these drones have, I suspect not a lot.

The idea does have its merits. With a bit of ingenuity, you could arrange
a 'station keeping' control using GPS and possible some sensors (body
rates and acceleration etc) to ensure the drone keeps the wire in place.

Too late :-)
Look he
https://www.skysapience.com/defense-.../hovermast-100



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Old August 19th 17, 03:08 PM posted to uk.radio.amateur,rec.radio.amateur.antenna
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Default Droning on ... vertical wire antennae

On Thu, 17 Aug 2017 23:55:48 +0100, just as I was about to take a
herb, Brian Reay disturbed my reverie and wrote:

The idea does have its merits. With a bit of ingenuity, you could
arrange a 'station keeping' control using GPS and possible some sensors


When I was recently on holiday, some tool was flying one of these over
a crowded beach. It did seem to have a "stay put" feature as it would
hover in position so well, that I doubt that it was under manual
control.
--

73 de Guy G4DWV/4X1LT
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Old August 19th 17, 03:29 PM posted to uk.radio.amateur,rec.radio.amateur.antenna
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Default Droning on ... vertical wire antennae


"Brian Reay" wrote in message
news
On 17/08/2017 23:24, Ian Jackson wrote:
In message , Gareth's Downstairs Computer
writes
Balloons and kites we've had, but what of drones to
hold the wire antenna aloft?

Ok, I hear you say about battery life, but taking
my cue from the Tesla / Edison wars, the AC / DC
arguments for transmitting power over long distances ...


''' what if the antenna were to be made from a bifilar
wire, bell flex or twin kevlar for lightness, with your
RF fed in parallel to both conductors, but superimposed
on the pair as separate wires, say, 20kV at 5kHz to
be transformed and "rectumfried" once it reaches the drone?

Then, you would not even need 2G4Hz control, it could be
superimposed of the HVAC.

Just an idea ...

I have already suggested 'aerial powering' in RSGBTech. Use twin wire
aerial, and feed DC power (via chokes) up it to the drone.


DC makes more sense, even with a balanced feed radiation is likely an
therefore a licence would be needed, even at 5kHz. You may well get an
NoV, they've been issued for such low frequencies before to my knowledge,
but not for drones etc.

I'm not sure how much lift these drones have, I suspect not a lot.

The idea does have its merits. With a bit of ingenuity, you could arrange
a 'station keeping' control using GPS and possible some sensors (body
rates and acceleration etc) to ensure the drone keeps the wire in place.

Try it on an Elephant first..........




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