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Re: Signal at high speed (was: Re: [NSW] Guards & Mobile phones)

Subject: Re: Signal at high speed (was: Re: [NSW] Guards & Mobile phones)
From: dbromage@fang.omni.com.au (David Bromage)
Date: Sat, 20 May 2000 06:13:13 GMT
Distribution: world
Followup-To: aus.rail,aus.comms.mobile
Newsgroups: aus.rail,aus.comms.mobile
Organization: Another Optus Customer
References: <06e393e5.6d89b7ac@usw-ex0108-063.remarq.com> <392527B9.9813E82E@ozemail.com.au> <3925315f$0$2632@news01.syd.optusnet.com.au> <1vaV4.896$465.891803@news0.optus.net.au> <39255156.FF2BF3D2@ozemail.com.au> <3925ef06$0$2635@news01.syd.optusnet.com.au> <WsnV4.421$lX1.524033@news0.optus.net.au> <XHoV4.38226$PL4.789494@ozemail.com.au>
Xref: bclass.spectrum.com.au aus.rail:9580 aus.comms.mobile:5764

Chris Downs (cvdowns@ozemail.com.au) wrote:
> How significant is the Doppler effect in a train travelling at 83.3m/s
> (300km/h) compared with the speed of radio waves 300,000,000m/s (approx 1.1
> billion km/h)?

Forget the speed of radio waves, go by the wavelength (i.e. subcarrier
frequency).

kkCheers
David

Follow-Ups:
- Re: Signal at high speed (was: Re: [NSW] Guards & Mobile phones)
  - From: "Chris Downs" <cvdowns@ozemail.com.au>

References:
- [NSW] Guards & Mobile phones
  - From: Nihonga <tony.patonNOtoSPAM@griffithhack.com.au.invalid>
- Re: [NSW] Guards & Mobile phones
  - From: Anita Lukaszyk <neety@ozemail.com.au>
- Re: [NSW] Guards & Mobile phones
  - From: "Andy B" <and_b@dingoblue.net.au>
- Re: [NSW] Guards & Mobile phones
  - From: "Dave Proctor" <daproc@spambait.ozemail.com.au>
- Signal at high speed (was: Re: [NSW] Guards & Mobile phones)
  - From: dbromage@fang.omni.com.au (David Bromage)
- Re: Signal at high speed (was: Re: [NSW] Guards & Mobile phones)
  - From: "Chris Downs" <cvdowns@ozemail.com.au>

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