| |
G8MNY > TECH 12.01.22 16:01l 54 Lines 2091 Bytes #999 (0) @ WW
BID : 57318_GB7CIP
Read: GUEST
Subj: AF Standing Waves
Path: IZ3LSV<ED1ZAC<EA5URD
Sent: 220103/0750Z @:EA5URD.EAMU.ESP.EU #:42770 XFBB7.07 Bid:57318_GB7CIP
R:220103/0749Z @:EA2RCF.EAVI.ESP.EU #:24588 [Vitoria] $:57318_GB7CIP
R:220103/0749Z 988@LU9DCE.TOR.BA.ARG.SOAM LinBPQ6.0.22
R:220103/0749Z 18719@N7HPX.#BOI.ID.USA.NOAM BPQ6.0.19
R:220103/0748Z 47637@W9GM.#SWWI.WI.USA.NOAM BPQ6.0.22
R:220103/0748Z 14319@N3HYM.MD.USA.NOAM BPQ6.0.22
R:220103/0748Z 33700@IV3BVK.IFVG.ITA.EU LinBPQ6.0.21
R:220103/0747Z @:PE1RRR.#NBW.NLD.EURO #:30575 [Rijen] $:57318_GB7CIP
R:220103/0746z @:DK0WUE.#BAY.DEU.EU $:57318_GB7CIP
R:220103/0745Z @:GB7CIP.#32.GBR.EURO #:57318 [Caterham Surrey GBR]
From: G8MNY@GB7CIP.#32.GBR.EURO
To : TECH@WW
By G8MNY (New Apr 17)
(8 Bit ASCII graphics use code page 437 or 850, Terminal Font)
While laying around for a week in Hospital & a noisy night time drug pump Alarm
on the adjacent bed, I found myself playing sound games when I could not sleep.
ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿
³ Bed ³
³Bed±±±± ±± ±±±±Bed³
³ ±± ³________
³ Corridor
³ ________
³ ±± ±± ±± ³
³ ±± [] ±± ±± ³
³ Bed Alarm Me Bed ³
ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ
I was in the middle of a 6 bed ward. The alarm was a loud pure note (1.5kHz?)
& I found with my head on one side & moving just a few mm, I could get a VERY
deep nulls (60dB) in the tone from the reflections bouncing up & down the room.
| _ _ _ _ _ _ _ _ |
| / \ / \ / \ / \ / \ / \ / \ / \ |
|/ \/ \/ \/ \/ \/ \/ \/ \|
| ³ ³ |
Wall Alarm Nulls Wall
Then when the nurse approached from the corridor, I could detect this with the
standing wave reflections were being disturbed. This gave a loud multiple
Doppler ping sounds for each node the nurse went through.
All quiet interesting when you have nothing else to do in Hospital at night!
Why don't U send an interesting bul?
73 De John, G8MNY @ GB7CIP
Read previous mail | Read next mail
| |
