Go Back  PPRuNe Forums > Aircrew Forums > Military Aviation
Reload this Page >

Wrong frequency maybe?

Military Aviation A forum for the professionals who fly military hardware. Also for the backroom boys and girls who support the flying and maintain the equipment, and without whom nothing would ever leave the ground. All armies, navies and air forces of the world equally welcome here.

Wrong frequency maybe?

Old 5th Mar 2010, 13:46
  #21 (permalink)  
Thread Starter
 
Join Date: Mar 2005
Location: Falmouth
Posts: 1,651
Isn't everyone using 8.33 Khz spacing nowadays ?
vecvechookattack is offline  
Old 5th Mar 2010, 20:44
  #22 (permalink)  
 
Join Date: Dec 2006
Location: Whanganui, NZ
Posts: 180
8.33KHz spacing

8.33KHz spacing - only in aviation.
Most ground and marine sets use a 12.5KHz spacing *

Or so my Spectrum Manager explained to me, all the while shaking his head sadly.

And of course, different national authorities reserve different portions of the same band for different purposes. So please don't use your US radio set, say, anywhere in East or South-East Asia or in Australasia 'coz you'll be all over other people's frequency allocations.

* BTW, that's respectively one-third and one-half the original 25MHz spacing
kiwi grey is offline  
Old 5th Mar 2010, 21:11
  #23 (permalink)  
 
Join Date: Feb 2003
Location: uk
Posts: 2,924
* BTW, that's respectively one-third and one-half the original 25MHz spacing
Older gits will remember, for example, pre-ASR889 50kHz spacing, and designers warning us that yes, you can get a 25kHz modification at great cost, but when you want 8.33/12.5 you better make sure there's money for new radios.

And then OR telling us in '96 that under no circumstances would any military aircraft get 8.33. The result is that, when the penny drops, the cost is borne by chopping some other project that has had the foresight to get it right. Ironic, on the day our glorious leader told Chilcott MoD had enough money and he never refused a request.
tucumseh is offline  
Old 5th Mar 2010, 22:16
  #24 (permalink)  
 
Join Date: Apr 2004
Location: Erehwon
Posts: 1,147
Hell's Bells, what a non-thread this is.

Out.
Dengue_Dude is offline  

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell My Personal Information -

Copyright 2018 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.