Sponsor Message:
Civil Aviation Forum
My Starred Topics | Profile | New Topic | Forum Index | Help | Search 
Strange Selcal Code On BMIBaby 737, Why?  
User currently offlineRobK From United Kingdom, joined Sep 2004, 3946 posts, RR: 18
Posted (9 years 10 months 4 weeks 1 day 12 hours ago) and read 2551 times:

Hi all,

First time poster so go easy on me !! Big grin I've been reading the forums for a good while now and like what I've seen so here I am !

Anyway.. being a big fan of anything selcal-related I have been trying to find out for a longggggg time now why BMA/BMIBaby's 737 rego G-ODSK is fitted with a strange out-of-sequence selcal code that actually works!?

The code is JR-ER. This goes against the ARINC 'law' that dictates selcal letters can only be used once. I understand that this is because when the letters are converted into RF 'tones' and sent out by the ground station the selcal receiver on the aircraft would not be able to successfully receive the selcal because each 'tone' (JR and ER) would be too 'close' for the receiver to distinguish. However, on the few times I have heard this aircraft ask Stockholm Radio LDOC for a selcal check the crew have always confirmed a successful check.

Can anyone tell me why ARINC issued this out-of-sequence code and/or maybe tell me why more haven't been issued given the success of this example above and also considering the number of available selcal codes is nearly at crisis point already ?

Thanks & cheers,

Rob K

Top Of Page
Forum Index

This topic is archived and can not be replied to any more.

Printer friendly format

Similar topics:More similar topics...
Strange Big Buldge On Top Of 737 posted Thu Nov 4 2004 23:56:52 by Leamside
Why The Winglets On The 737-800? posted Thu Apr 5 2001 22:24:28 by 777kicksass
Winglets On 747 Classics - Why No Success posted Wed Dec 6 2006 11:24:56 by NA
GE Partnership On The 77W - Why Did Boeing Do It? posted Wed Nov 22 2006 21:22:33 by AirbusA6
Power Outlets On DL 737-800 Coach? posted Thu Nov 16 2006 16:35:34 by Eastern023
EU Put PIA On Blacklist Watch - Why? posted Fri Oct 13 2006 14:38:11 by 777way
Seat Change On US Airways ~ WHY? posted Fri Aug 11 2006 19:47:36 by N174UA
Winglets On CO's 737-800s posted Wed Jul 19 2006 06:02:24 by Simairlinenet
Range Vs Payload Chart On The 737-700ER? posted Tue Jun 13 2006 12:28:59 by OyKIE
More On The 737/747 In VVI posted Fri Jun 2 2006 20:01:54 by LatinAviation