• Als Spam markieren
• Beitrag melden

• 
  Diese Gruppe Alles

• Archiv
• RSS-Feeds

• Kontakt
• Hilfe
• Impressum
• Datenschutz

Re: Is this group about amateur radio in the UK?

Brian Reay wrote:

>
>"Walt Davidson" <g3nyy@invalid.invalid> wrote in message
>news:qjl05597h79losjqa24op593u8ph9us5kp@4ax.com...

>> In fact they are far from "crude nav aids".  NDBs are an integral
part
>> of the NDB/DME system, which - together with VOR -  is the standard
>> airport approach method for aircraft operating under Instrument Flight
>> Rules.
>
>They will get an aircraft in the area of a airfield but that is quite
>different to the sorts of accuracy required for some applications.  Plus, of
>course, in time of war the various ground based beacons (and even GPS) may
>not be available.
>
>Why on earth do you think things like Laser IN systems, GPS, and terrain
>referenced navigation systems  were designed?
>
>If you don't wish to believe me, fine.

Walt is confusing 'adequate for the job' with 'sophisticated',
'advanced', or 'high accuracy', which NDBs manifestly are not.
--

from
Aero Spike
Not a member of RAOTA for 28 years 1981 - 2009
Not a member of the RSGB for 50 years 1959 - 2009

Antworten