Audio aphorism
- Fretless
- Posts: 9348
- Joined: Wed Nov 12, 2014 12:15 pm
- Location: Somewhere in Holland
- Has thanked: 1521 times
- Been thanked: 2321 times
Re: Audio aphorism
Wouldn't the rubber of the aircraft tyres act as an insulator?
Upstairs:
VinylPro-Ject 1.2 + Grado Sig Jr + Cambridge Alva Duo
DigiVolumio PC + Kiss DP-500 + Sabaj A20d
NVA: Cube2 - SSP - LS6+ Sabaj A10a {x2)
Little Bear MC2 + AQ NightHawk
Downstairs:
VinylLogic DM101 + Syrinx LE1 + Grado Sig MCX
DigiDenafrips Ares II + Volumio PC + Cambridge CXC
NVA: P50 & PSU - BMUAiyima A07 MAX + Arcam One
HP: Allo DigiOne + Sabaj A10d + AQ NightOwl
Office: Allo DigiOne SIG + SMSL M300se + Douk G4 (x2)
Mission 760 + Monolith 887 + German Maestro GMP 450
- Dr Bunsen Honeydew
- Posts: 30758
- Joined: Wed Jul 11, 2012 7:26 pm
- Location: Muppet Labs
- Has thanked: 0
- Been thanked: 48 times
- Shevans
- Posts: 476
- Joined: Wed Mar 06, 2013 4:55 pm
- Location: Liverpool my it’s awful
- Has thanked: 34 times
- Been thanked: 45 times
Re: Audio aphorism
Its the same with a groundplane earth when using Ham Radio in a car, insulated from the road by the tyres but still adequate to make contact 1,000s on miles away on the HF frequencies.
Airplanes have a fantastic added bonus of having their aerials a long way off the ground so propagation is fantastic. Tried using a bunch of helium balloons to carry a wire aloft many years ago but it escaped.
Not active anymore but I am G1EKM
Airplanes have a fantastic added bonus of having their aerials a long way off the ground so propagation is fantastic. Tried using a bunch of helium balloons to carry a wire aloft many years ago but it escaped.
Not active anymore but I am G1EKM
-
- Posts: 1569
- Joined: Thu Aug 11, 2016 2:46 pm
- Location: Denham UK
- Has thanked: 135 times
- Been thanked: 483 times
Re: Audio aphorism
I tried to edit the previous post to correct the comment on earthing via tyres. The tyres earth the static charge that aircraft build up in flight, they work in the same way as an electrostatic wrist strap.
-
- Posts: 933
- Joined: Tue Jun 14, 2016 1:58 pm
- Has thanked: 0
- Been thanked: 16 times
Re: Audio aphorism
Yep, thats why I said long wave (<300kHz).HF radio works perfectly well from aircraft too. HF and Short Wave being the same thing (3-30 MHz).
-
- Posts: 1569
- Joined: Thu Aug 11, 2016 2:46 pm
- Location: Denham UK
- Has thanked: 135 times
- Been thanked: 483 times
Re: Audio aphorism
I missed that part, aircraft can receive VLF perfectly well but I know of no airborne system that transmits in that range. You can of course trail a very long wire aerial if necessary but SatCom makes world-wide communication possible at much higher quality with fewer disadvantages. SatCom also has sufficient bandwidth for data which would be impossibly slow at VLF.Lurcher300b wrote:Yep, thats why I said long wave (<300kHz).HF radio works perfectly well from aircraft too. HF and Short Wave being the same thing (3-30 MHz).
-
- Posts: 8587
- Joined: Thu Jul 12, 2012 7:16 am
- Has thanked: 24 times
- Been thanked: 399 times
Re: Audio aphorism
editing restricted to 1/2 hour to stop after the fact re writing of history. Good job Winston Smith doesn't work for h/s he would be out of a job.Geoff.R.G wrote:I tried to edit the previous post to correct the comment on earthing via tyres. The tyres earth the static charge that aircraft build up in flight, they work in the same way as an electrostatic wrist strap.
-
- Posts: 1569
- Joined: Thu Aug 11, 2016 2:46 pm
- Location: Denham UK
- Has thanked: 135 times
- Been thanked: 483 times
Re: Audio aphorism
I expected that but the site locked up when I tried, which I didn't expect.Daniel Quinn wrote:editing restricted to 1/2 hour to stop after the fact re writing of history. Good job Winston Smith doesn't work for h/s he would be out of a job.Geoff.R.G wrote:I tried to edit the previous post to correct the comment on earthing via tyres. The tyres earth the static charge that aircraft build up in flight, they work in the same way as an electrostatic wrist strap.
- Dr Bunsen Honeydew
- Posts: 30758
- Joined: Wed Jul 11, 2012 7:26 pm
- Location: Muppet Labs
- Has thanked: 0
- Been thanked: 48 times