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20-03-2006, 11:22 AM
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#1
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Traveling
Country: UK
Location: Alderholt
Occupation: Aerospace
Boat name: T/T D2S
Boat make: Midas 27' Cat, Argo 16 Cat. Avon Rib Thingy
Engines: Merc 280-ROS -JSRE,65Xs, 75 Stinger, Yam 60
Cruising area: Any Seedy Bar
Join Date: Sep 2004
Location: Alderholt
Posts: 4,225
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Intercom
I see Lidil are having a "Bike Week" instore starting today 20th March.
They are doing headset Intercoms at 4.99 its cheap how it would stand up to time is a guess but it's less than a fiver if anybody is looking.
Edit: your starter for 10 where I'm going after work
Edit2: here is the link
http://www.lidl.co.uk/gb/home.nsf/pa...ee_Speaker_Set
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20-03-2006, 12:52 PM
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#2
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hello
Join Date: Mar 2004
Posts: 2,739
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I've got a £10 intecom and its fine when the boats not moving but at all other times you can't make out what the other person is saying from the wind noise, that with closed face helmets on.
It makes a lovely screeching noise too sometimes for no reason whatsoever.
In short, its crap!!!
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20-03-2006, 09:32 PM
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#3
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Registered User
Country: whereeveritsappenin
Location: whereeveritsappenin
Interests: whateverisappenin
Boat name: appenin
Boat make: maybe
Engines: sometimes
Cruising area: whereeveritsappenin
Join Date: Jun 2004
Location: whereeveritsappenin
Posts: 64
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Im sure I wouldnt want to be going down the start run next to you if you were relying on a 4.99 intercom!!! 
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20-03-2006, 09:38 PM
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#4
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Traveling
Country: UK
Location: Alderholt
Occupation: Aerospace
Boat name: T/T D2S
Boat make: Midas 27' Cat, Argo 16 Cat. Avon Rib Thingy
Engines: Merc 280-ROS -JSRE,65Xs, 75 Stinger, Yam 60
Cruising area: Any Seedy Bar
Join Date: Sep 2004
Location: Alderholt
Posts: 4,225
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Was for the bike, never found one that held up in the boat.
Anyway JBD is right crap can't hear diddly above about 55-60 whistles like crazy at 70 (ish)
__________________
It is impossible to lick your elbow.
Team25Racing.com
At least 75% of people who read this will try to lick their elbow!
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23-03-2006, 09:05 PM
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#5
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Registered User
Country: England
Location: Kent
Occupation: Train Engineer
Interests: Refit/Re-engine Woody's P18 and helping with D2S.
Boat name: Fugazi II / D2S
Boat make: Phantom 18 / Planatec 41'
Engines: 1xMercury XR2 / 2x 8.1ltr Chevys
Cruising area: Kent/Hampshire/Dorset Coasts
Join Date: Aug 2005
Location: Kent
Posts: 411
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Quote:
Originally posted by BluFin
Was for the bike, never found one that held up in the boat.
Anyway JBD is right crap can't hear diddly above about 55-60 whistles like crazy at 70 (ish)
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Best intercom I found for racing was the Graytronics sysytem. Are they still about?
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23-03-2006, 09:14 PM
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#6
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Registered User
Country: UK
Location: Weston Super Mare
Occupation: Electrical Engineer
Join Date: Mar 2004
Location: Weston Super Mare
Posts: 6,351
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Quote:
Originally posted by SplitPin
Best intercom I found for racing was the Graytronics sysytem. Are they still about?
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Don't make them at the moment, spoke to Bob today and he says they will make some in a few months but they always say that and it never happens
I've been waiting for 5 months to have mine fixed
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23-03-2006, 09:16 PM
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#7
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Registered User
Country: United kingdom
Location: West Sussex
Occupation: Grease Monkey
Interests: Makin my boat faster!
Boat name: S.B Racing
Boat make: Ocke mannerfelt canopied B23 / Zapcat
Engines: Merc 200XS Gen 2 / Tohatsu 50
Cruising area: littlehampton/Southampton
Join Date: Jan 2005
Location: West Sussex
Posts: 2,656
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I run Greytronics there the bollox! 
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Class 3C Mono EPA National speed record holder 95.35 mph Avg!
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23-03-2006, 09:30 PM
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#8
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hello
Join Date: Mar 2004
Posts: 2,739
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Graytronics have noise cancelling, anyone know how that works?
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23-03-2006, 09:34 PM
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#9
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Registered User
Country: England
Location: Birmingham
Occupation: Scratching
Interests: Big Dinners
Boat name: Never Enough
Boat make: Seaquel 600xs
Engines: 225hp Merc ProMax
Cruising area: Anywhere! I prefer Weymouth
Join Date: May 2005
Location: Birmingham
Posts: 3,232
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Quote:
Originally posted by Johnny Boat Dude
Graytronics have noise cancelling, anyone know how that works?
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Are you going to tell us JBD?
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 I got jumper cables!
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23-03-2006, 09:39 PM
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#10
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Registered User
Country: UK
Location: Weston Super Mare
Occupation: Electrical Engineer
Join Date: Mar 2004
Location: Weston Super Mare
Posts: 6,351
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Quote:
Originally posted by MrRob
Are you going to tell us JBD?
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He doesn't know, thats why he asked 
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23-03-2006, 09:47 PM
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#11
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hello
Join Date: Mar 2004
Posts: 2,739
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I dont know myself!!!
Band pass filter? 300Hz to 3.4KHz range like a telephone maybe? That would cancel out alot of the noise but I guess wind noise is like white noise and white noise covers a very broad frequency spectrum including the range mentioned above. So you would still get some noise.
Anybody else?
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23-03-2006, 11:59 PM
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#12
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numbskull
Country: United Kingdom
Location: South
Occupation: none
Interests: none
Boat name: Leviathan
Boat make: Phantom 28
Cruising area: South Coast
Join Date: Mar 2004
Location: South
Posts: 15,959
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If it's anything like noise cancelling headphones, an aditional microphone listens to external noise, and generates the exact opposite signal, and feeds it back into the loop, this cancels out the external noise, leaving just the voice signal minus the extra external stuff.
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"I Agree with everything you say really!" - John Cooke to Jon Fuller - 26-01-2013
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24-03-2006, 12:07 AM
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#13
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Registered User
Country: Wales
Location: Southampton
Occupation: boat driver/Instructor
Interests: boats , laughing and music
Boat name: Dyna Mo Humm
Boat make: Avon Searider 8.4mmmm
Engines: Cat 4216 450hp
Cruising area: Solent
Join Date: Mar 2004
Location: Southampton
Posts: 983
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Quote:
Originally posted by Jon Fuller
If it's anything like noise cancelling headphones, and aditional microphone listens to external noise, and generates the exact opposite signal, and feeds it into the loop, this cancels out the external noise, leaving just the voice signal minus the 'distorsion'
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you are corerct apart from a little Distortion!
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when I grow up I wanna be Tony Davis
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24-03-2006, 12:25 AM
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#14
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numbskull
Country: United Kingdom
Location: South
Occupation: none
Interests: none
Boat name: Leviathan
Boat make: Phantom 28
Cruising area: South Coast
Join Date: Mar 2004
Location: South
Posts: 15,959
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presumably, you aren't correcting my spelling, with your message containing the word "corerct" 
__________________
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"I Agree with everything you say really!" - John Cooke to Jon Fuller - 26-01-2013
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24-03-2006, 12:59 PM
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#15
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hello
Join Date: Mar 2004
Posts: 2,739
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Quote:
Originally posted by Jon Fuller
If it's anything like noise cancelling headphones, an aditional microphone listens to external noise, and generates the exact opposite signal, and feeds it back into the loop, this cancels out the external noise, leaving just the voice signal minus the extra external stuff.
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Yeah I had thought of that method but I wonder how it would cope with cancelling out a barrage of wind noise (white noise)?
Maybe that combined with a band pass filter would work?
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