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RJ 700 Cockpit Automated Voice "cell Call"  
User currently offlineunitedchicago From United States of America, joined Jan 2000, 105 posts, RR: 0
Posted (2 years 3 days 13 hours ago) and read 4341 times:

Hello,

I've been meaning to post this. I've heard a cockpit automated voice come from the RJ 700 saying something to the effect of "cell call". Not sure I have that right but believe it's something ending in "call". It's only when we're parked at the gate.

What is this?

Thanks!

[Edited 2012-12-15 10:28:57]

14 replies: All unread, jump to last
 
User currently offlineBrick From United States of America, joined Aug 1999, 1589 posts, RR: 7
Reply 1, posted (2 years 3 days 11 hours ago) and read 4281 times:

You are hearing "SELCAL"

The Wikipedia article can explain what it is: http://en.wikipedia.org/wiki/SELCAL



A noble spirit embiggens the smallest man...
User currently offlineXFSUgimpLB41X From United States of America, joined Aug 2000, 4229 posts, RR: 37
Reply 2, posted (2 years 3 days 6 hours ago) and read 4156 times:

Except since the CRJ has no chime for an ACARS message, the SELCAL aural alert is used instead. It is incredibly obnoxious hearing that every message you receive.


Chicks dig winglets.
User currently offlineroswell41 From United States of America, joined Aug 2001, 803 posts, RR: 1
Reply 3, posted (2 years 3 days 5 hours ago) and read 4130 times:

Most CRJs (all that I've flown personally) have never been equipped with a real SELCAL system. The CRJ does however use an audible 'SELCAL' to alert the crew to a new ACARS message.

User currently offlineHAWK21M From India, joined Jan 2001, 31702 posts, RR: 56
Reply 4, posted (2 years 2 days 22 hours ago) and read 4009 times:

Quoting roswell41 (Reply 3):
have never been equipped with a real SELCAL system.

Why no real selective calling on the type....



Think of the brighter side!
User currently offlineFabo From Slovakia, joined Aug 2005, 1219 posts, RR: 1
Reply 5, posted (2 years 2 days 17 hours ago) and read 3950 times:

Quoting HAWK21M (Reply 4):
Why no real selective calling on the type....

Is there even a need? Best use for SELCAL is when you get only one message in a longer amount of time, typically NATOPS and PACOPS and so, meanwhile CRJ usually fly in rather busy airspaces. Is there even an option for using SELCAL for ex. on eastern coast of the US and eastern Canada?



The light at the end of tunnel turn out to be a lighted sing saying NO EXIT
User currently offlineAKiss20 From United States of America, joined Sep 2007, 651 posts, RR: 5
Reply 6, posted (2 years 2 days 16 hours ago) and read 3927 times:

Why did they install a SELCAL alert system for a system almost (if any) aircraft will have but not one for ACARS which every aircraft will have?


Change will not come if we wait for some other person or some other time. We are the ones we've been waiting for. We are
User currently offlineroswell41 From United States of America, joined Aug 2001, 803 posts, RR: 1
Reply 7, posted (2 years 2 days 14 hours ago) and read 3890 times:

Good question. I don't know the answer to why no ACARS audible alert was installed. I am sure a real SELCAL system is an option that few CRJ operators exercise. SELCAL is most useful when flying over long distances with only HF coverage. With SELCAL, pilots don't have to continuously monitor the HF radio since that system will alert them of incoming messages. As you can see, all things not particularly useful for your average CRJ route.

User currently offlinelonghauler From Canada, joined Mar 2004, 5155 posts, RR: 43
Reply 8, posted (2 years 2 days 14 hours ago) and read 3883 times:

Quoting Fabo (Reply 5):
Is there even a need? Best use for SELCAL is when you get only one message in a longer amount of time, typically NATOPS and PACOPS and so, meanwhile CRJ usually fly in rather busy airspaces. Is there even an option for using SELCAL for ex. on eastern coast of the US and eastern Canada?

Canadian Airlines used to have SELCAL on their B737-200/300s, using VHF frequencies. This was a way for Flight Dispatch to maintain flight watch before the days of ACARS. It continued right until the retirement of the type, as it was considered ACARS installation too expensive considering how long the aircraft were remaining.



Never gonna grow up, never gonna slow down .... Barefoot Blue Jean Night
User currently offlineXFSUgimpLB41X From United States of America, joined Aug 2000, 4229 posts, RR: 37
Reply 9, posted (2 years 2 days 13 hours ago) and read 3862 times:

Early CRJ operators didn't have ACARS, so that likely had to do with no programming of an ACARS chime. Why it hasn't been retrofitted, I have no idea. I can't imagine how many radio calls are missed every day due to that ridiculously loud aural message.


Chicks dig winglets.
User currently offlineFabo From Slovakia, joined Aug 2005, 1219 posts, RR: 1
Reply 10, posted (2 years 2 days 10 hours ago) and read 3801 times:

Quoting XFSUgimpLB41X (Reply 9):
I can't imagine how many radio calls are missed every day due to that ridiculously loud aural message.

Ironic, isnt it?

Quoting longhauler (Reply 8):
Canadian Airlines used to have SELCAL on their B737-200/300s, using VHF frequencies. This was a way for Flight Dispatch to maintain flight watch before the days of ACARS. It continued right until the retirement of the type, as it was considered ACARS installation too expensive considering how long the aircraft were remaining.

Interesting tidbit, thanks longhauler! So do I understand it right, that you would have a radio with SELCAL tuned to company frequency, and when you got a chime, you called home and asked what they wanted?



The light at the end of tunnel turn out to be a lighted sing saying NO EXIT
User currently offlinelonghauler From Canada, joined Mar 2004, 5155 posts, RR: 43
Reply 11, posted (2 years 2 days 7 hours ago) and read 3713 times:

Quoting Fabo (Reply 10):
Interesting tidbit, thanks longhauler! So do I understand it right, that you would have a radio with SELCAL tuned to company frequency, and when you got a chime, you called home and asked what they wanted?

Yes, that is exactly right. The VHF frequency was the same from Victoria to St. John's, and Com3 was always tuned to this frequency.

Ironically enough, with the source for the B737s from at least 10 different airlines, the actual location of the SELCAL light (push to cancel) was different. I had one occurrence where the button was at the top of the overhead panel, to the right. Probably easy to find on a dark night, but on this bright day, it took us a few minutes of "bing-bong"ing to find it.

It was a "one-off" in the fleet, that I had never before seen! We knew what it was, just not where it was!



Never gonna grow up, never gonna slow down .... Barefoot Blue Jean Night
User currently offlinenws2002 From United States of America, joined Feb 2008, 924 posts, RR: 0
Reply 12, posted (2 years 1 day 13 hours ago) and read 3498 times:

Could the SELCAL message be a throwback to the CRJ being related to a bizjet that does fly longer legs but probably lacked ACARS?

User currently offlinewoodreau From United States of America, joined Sep 2001, 1053 posts, RR: 7
Reply 13, posted (2 years 1 day 2 hours ago) and read 3391 times:

It must be an customer option to have an ACARs msg trigger the SELCAL aural and associated EICAS status, as our CRJs don't do that. Instead when we receive an ACARS msg, the printer prints the message automatically. No annoying "SELCAL" aural or anything like that. in addition we'll get a "MSG" annunciation on the CDU scratchpad.

When I worked for a B1900 operator, we had SELCAL using VHF. Most of the time we used it to call company not so much for dispatch to call us as we never bothered to tune the appropriate frequency into the VHF radio.



Bonus animus sit, ab experientia. Quod salvatum fuerit de malis usu venit judicium.
User currently offlineFlyASAGuy2005 From United States of America, joined Sep 2007, 7004 posts, RR: 7
Reply 14, posted (2 years 1 day 2 hours ago) and read 3385 times:

Quoting woodreau (Reply 13):

Tha'ts possible. I've only heard it on 9E CR2s/9s but never on EV CRJs.



What gets measured gets done.
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