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Length Of Ground Headset Cable.  
User currently offlineHAWK21M From India, joined Jan 2001, 31684 posts, RR: 56
Posted (4 years 9 months 1 week 6 days 3 hours ago) and read 3155 times:

Is there any official Doc to suggest the standards for the Ground headset cable length required while connecting from Ground Maintenance to the Flight deck.
regds
MEL.


Think of the brighter side!
20 replies: All unread, jump to last
 
User currently offlineAvt007 From Canada, joined Jul 2000, 2132 posts, RR: 5
Reply 1, posted (4 years 9 months 1 week 5 days 12 hours ago) and read 3064 times:

I'm not sure, but for one aircraft I made an extension cord of 50 feet. This was for maintennace purposes, allowing me to plug into one external jack point, and crawl around inside the tail, or go up on a scissor lift to the tail. The only practical limit is the hassle of dragging the wire around.

User currently offlineJarheadK5 From United States of America, joined Nov 2005, 216 posts, RR: 1
Reply 2, posted (4 years 9 months 1 week 5 days 7 hours ago) and read 3013 times:

Never seen an official specification for that sort of thing, aside from the obvious things like having enough length to stay well clear of prop arcs, inlet hazard areas, etc.


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User currently offlineBOACVC10 From United States of America, joined Jul 2006, 613 posts, RR: 0
Reply 3, posted (4 years 9 months 1 week 5 days 3 hours ago) and read 2988 times:



Quoting HAWK21M (Thread starter):
Is there any official Doc to suggest the standards for the Ground headset cable length required while connecting from Ground Maintenance to the Flight deck.
regds
MEL.

Hi, I am a ham radio guy, and have wondered why use corded headsets at all ? you already carry a walkie-talkie on some frequency, why not request an RF adapter (Audio IN, Audio Out, modulator, RF transceiver) to plug in the socket for the audio. That way, the ground operator can be free to do whatever within a certain range (say 100 feet) of the aircraft on a 9 volts battery.

or, you could cheat and use a low cost blue tooth/audio converter for two-way conference in an interference free spread spectrum band that is "free to use" in almost all parts of the globe and also in the S. Asian regions.

I just did a random search and found some gadget, there are probably thousands of such variations or you can build your own...

See here


Think of the issues with "no wire" connecting ground op and the aircraft.. essentially the "headset" would have to be bluetooth compatible, or if bluetooth is not allowed, then it should have an integrated VHF transceiver.



Up, up and Away!
User currently offlineJAGflyer From Canada, joined Aug 2004, 3527 posts, RR: 4
Reply 4, posted (4 years 9 months 1 week 4 days 20 hours ago) and read 2923 times:

What about just a handheld radio transceiver? Have the pilots tune to an empty frequency or 123.45 and talk to them that way?


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User currently offlineJetmatt777 From United States of America, joined Jun 2005, 2788 posts, RR: 32
Reply 5, posted (4 years 9 months 1 week 4 days 17 hours ago) and read 2894 times:



Quoting JAGflyer (Reply 4):
What about just a handheld radio transceiver?

The noise on the ramp is pretty loud, especially when you are 25 feet from two or more jet engines starting. Also, since it is "intercom" and never leaves onto an open frequency, your ground operators don't need a radio license or have to put their transmissions between other aircraft and ground crews on frequency.



No info
User currently offlineCanadianNorth From Canada, joined Aug 2002, 3390 posts, RR: 9
Reply 6, posted (4 years 9 months 1 week 4 days 17 hours ago) and read 2884 times:



Quoting Jetmatt777 (Reply 5):
Jetmatt777

Yeah, when everythings shut down a normal hand held radio would be fine, but when you're giving them a start once you have the engines running you pretty much need the fancy mouthpiece that goes around your face to help block the noise. Also plugging in puts you direct to the flight deck, no waiting for the radio to be free.


CanadianNorth



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User currently offlineTheGreatChecko From United States of America, joined Mar 2004, 1128 posts, RR: 2
Reply 7, posted (4 years 9 months 1 week 4 days 16 hours ago) and read 2875 times:

I'd love some type of wireless or radio device so I could talk to the ground crew, however, there would be some issues that would have to be solved, such as having to monitor and select between a ramp control and ground personnel frequency during pushback and engine start, which is a pretty busy time.

Plus, I'm sure any kind of radio intercom device would have to be "approved" by the appropriate government authorities and thus would be much more expensive than a regular cord simply because it an official sticker on it.

For the time being, I'm thinking the simpler, cable route will be the better choice.

Checko

[Edited 2009-12-12 11:22:43]


"A pilot's plane she is. She will love you if you deserve it, and try to kill you if you don't...She is the Mighty Q400"
User currently offlineAvt007 From Canada, joined Jul 2000, 2132 posts, RR: 5
Reply 8, posted (4 years 9 months 1 week 4 days 16 hours ago) and read 2862 times:

A cable is easier, and when you're a mtce guy, sometimes you want both hands free. That's where a headset is better.

User currently offlineHAWK21M From India, joined Jan 2001, 31684 posts, RR: 56
Reply 9, posted (4 years 9 months 1 week 4 days 16 hours ago) and read 2861 times:



Quoting Avt007 (Reply 1):
but for one aircraft I made an extension cord of 50 feet.

What Type aircraft was this.Were there no Service Interphone connections built on the Airframe.

Quoting BOACVC10 (Reply 3):

There are Wireless adapters available which is plugged to the Interphone panel & can be used within a fixed range.The problem is expense.

regds
MEL.



Think of the brighter side!
User currently offlineUnattendedBag From United States of America, joined Oct 2003, 2328 posts, RR: 1
Reply 10, posted (4 years 9 months 1 week 3 days 18 hours ago) and read 2766 times:



Quoting BOACVC10 (Reply 3):
or, you could cheat and use a low cost blue tooth/audio converter for two-way conference in an interference free spread spectrum band that is "free to use" in almost all parts of the globe and also in the S. Asian regions.

That would require to aircraft "sync" up every time it approaches a gate or leaves the gate. If a plane is sitting at a gate, which is right next to 2 other gates, and those two gates are right next to 4 other gates, how difficult would it be for that single plane to "sync" up to its intended gate? And how hard would it be for that aircraft to "sync" up to different gates where ever it flies to?

Quoting JAGflyer (Reply 4):
Have the pilots tune to an empty frequency or 123.45 and talk to them that way?

How many planes do you think push back at the same time at a busy airport? One? There can be more than 10 or 20 aircraft pushing back at the same time at a busy airport in the morning. It would be expensive to establish a single frequency for each gate. And that could lead to confusion over which frequency to monitor when.



Slower traffic, keep right
User currently offlineAvt007 From Canada, joined Jul 2000, 2132 posts, RR: 5
Reply 11, posted (4 years 9 months 1 week 3 days 7 hours ago) and read 2687 times:



Quoting HAWK21M (Reply 9):
What Type aircraft was this.Were there no Service Interphone connections built on the Airframe.

Dash 8. Only two jacks, one in the nose for pushbacks, and one in the RH nacelle by the refuel panel. Not much use if you want to work in the APU bay.


User currently offlineL-188 From United States of America, joined Jul 1999, 29799 posts, RR: 58
Reply 12, posted (4 years 9 months 1 week 3 days 3 hours ago) and read 2651 times:

I don't think there are any "standards" other then the length the manufacter makes for their stock.

In theory there doesn't really have to be a length. I am sure those makes are buying the stuff in 1000 foot or better reels.



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User currently offlineMaverick623 From United States of America, joined Nov 2006, 5650 posts, RR: 6
Reply 13, posted (4 years 9 months 1 week 3 days 3 hours ago) and read 2650 times:

We used to have 20-foot reels to connect to the airplanes, but they were replaced not too long ago with stretch cords that give about... oh, 20 feet or so  Wink

Quoting TheGreatChecko (Reply 7):
I'd love some type of wireless or radio device so I could talk to the ground crew

There are Bluetooth devices available, but they're costly to invest in, and need batteries.



"PHX is Phoenix, PDX is the other city" -777Way
User currently offlineHAWK21M From India, joined Jan 2001, 31684 posts, RR: 56
Reply 14, posted (4 years 9 months 1 week 2 days 23 hours ago) and read 2622 times:



Quoting Avt007 (Reply 11):

Dash 8. Only two jacks, one in the nose for pushbacks, and one in the RH nacelle by the refuel panel. Not much use if you want to work in the APU bay.

Whats the procedure in case of communication with the Flt deck while working on the APU section.
regds
MEL.



Think of the brighter side!
User currently offlineAvt007 From Canada, joined Jul 2000, 2132 posts, RR: 5
Reply 15, posted (4 years 9 months 1 week 2 days 13 hours ago) and read 2580 times:

I've used it for troubleshhoting systems. For example, the Dash is famous for airconditioning snags. The headset is great because it blocks out the noise of the APU or packs, and lets you observe the pack valve response to commands from the cockpit.

User currently offlineHAWK21M From India, joined Jan 2001, 31684 posts, RR: 56
Reply 16, posted (4 years 9 months 1 week 2 days 3 hours ago) and read 2541 times:

There is a coiled wired type headset available similiar to the Telephone cable that expands when stretched & takes less space normally.
regds
MEL.



Think of the brighter side!
User currently offlineB6JFKH81 From United States of America, joined Mar 2006, 2888 posts, RR: 7
Reply 17, posted (4 years 9 months 1 week 1 day 12 hours ago) and read 2496 times:



Quoting HAWK21M (Reply 16):
There is a coiled wired type headset available similiar to the Telephone cable that expands when stretched & takes less space normally.

We primarily use the coiled ones. IIRC, we procure the 25 foot coiled ones for most of our operations. There are also 2 combinations that you can have. Either you have a push-to-talk headset with a non-push-to-talk cord, or the other way around. I can't remember which one we went with, but I think it was a push-to-talk cord because the cord is cheaper to repair/replace.



"If you do not learn from history, you are doomed to repeat it"
User currently offlineHAWK21M From India, joined Jan 2001, 31684 posts, RR: 56
Reply 18, posted (4 years 9 months 1 week 1 day 4 hours ago) and read 2465 times:


We use the DC headsets but with non coiled cable.
regds
MEL.



Think of the brighter side!
User currently offlineBuzz From United States of America, joined Nov 1999, 697 posts, RR: 21
Reply 19, posted (4 years 9 months 18 hours ago) and read 2309 times:

Hi MEL,Buzz here. Our normal non-curly cord was 16 foot... maybe 4.5 meters.
The pushback tugs had a 25 foot curly cord.

g'day


User currently offlineHAWK21M From India, joined Jan 2001, 31684 posts, RR: 56
Reply 20, posted (4 years 9 months 18 hours ago) and read 2308 times:

Hey Buzz.
Nice to hear from you after a long time.Sure miss your intro dialogue '"This is buzz here"
When you say 25ft curly cord,you are mentioning the stretched length.right.
regds
MEL.



Think of the brighter side!
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