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For the electronics experts
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bobbycrispbox
Joined: 15 May 2006
Location: The Peaks
Posts: 1313
 
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| For the electronics experts |
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I was discussing this with Chris and Iain on the ferry back from Africa, I thought I'd throw it open for a few more ideas...
Currently, my PMR thang has it's speaker output plugged into the right channel line input on the ipod ACM thang. It works very well - when the PMR is powered on, the right channel ignores the ipod input and goes over to the PMR input. I don't know how it works, but it does. A useful hidden feature of the ACM.
I want to improve on this, by having it only mute the ipod when there is noise coming from the PMR. Chris and I discussed getting some sort of signal off the squelch thing on the radio. He then went on to use words like op amp and solid state relay and my mind wandered... Anyway, the disadvantage to this is the PMR box is hidden away in the boot. It would be much easier if I could achieve the whole thing using only what comes to the front of the vehicle - the speaker output.
Basically, my question to the electronics experts is, can I buy/build a little circuit that will detect noise on the input and only connect it to the output if it is over a certain volume? mooie koplampen
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 Tue Jul 01 2008 8:53pm |
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bobbycrispbox
Joined: 15 May 2006
Location: The Peaks
Posts: 1313
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Hmm, talking to myself again 
I've done it. As you can see, the presentation is awesome, and you can barely tell that I've done a mod to my vehicle at all 
OK, it's a prototype, so now I know it works I can get a proper enclosure for it and make everything a bit neater. I can also take my centre console apart again to reattach the park brake switch 
Thanks to wiggs for helping me use the Internet to find this, which is really the only clever thing involved in the whole job. mooie koplampen
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| Wed Jul 16 2008 4:43pm |
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Bodsy
Joined: 06 Nov 2006
Location: Across Europe......
Posts: 5309
 
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I like the solution & it looks as though you'll be able to get that down to a fraction of the size it is currently. Should fit in your glovebox quite nicely 
Oh hold on a minute..... what's that next to your CB..... Have you gone all HF on us......  TDV6 HSE Black, Black Wheels /MTR's(in the shed!), Black RRS front/rear LR badge (tbf) Black Leather, Black Glass, Black TowB, Shiny Tasmods, Dull Mantec, White (& Orange) Reflective D3 Sticker, Black steering wheel badge, black air intake. Optima & Traxide dual battery setup.
Need black RRS wheel centre caps.
Now with added Engel.....
We D3, therefore we are..........
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| Wed Jul 16 2008 4:52pm |
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christyler
Joined: 31 Dec 2005
Location: Cork, Ireland
Posts: 918
 
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ooo look its an op amp and a solid state relay, good idea that. SE Ireland Turbochip Dealer.
First D3 in the World with a Hydraulic Winch.
2006 Disco 3 TDV6 S Auto,
Diff Locks,Turbochipped, Cooper STT's, Raised Air Intake, 220volts Onboard, Car PC, Onboard Compressor, Large Bore Exahust, Underbody Protection, One or two Other Mods as well.
Other toys include a sexy Jaguar XK8, Volvo C303 and an Argo Avenger 8x8.
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| Wed Jul 16 2008 4:57pm |
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countrywide
Joined: 16 Sep 2007
Location: Sunny South Coast
Posts: 1399
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You've probably mentioned this elsewhere, but why is your gear selector the wrong way round
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| Wed Jul 16 2008 4:59pm |
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bobbycrispbox
Joined: 15 May 2006
Location: The Peaks
Posts: 1313
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@ CT: Smartarse 
@ CW: Because I wasn't concentrating when I reattached it. I spotted it pretty quickly when I went to drive off. It still works this way round, you know. mooie koplampen
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| Wed Jul 16 2008 5:01pm |
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wiggs
Joined: 03 Sep 2006
Location: Manchester
Posts: 2161
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good job ,
Did you not need the "Speaker to RCA Line Level Converter" ? JAVA BLACK SE , MANUAL , PRIVACY GLASS , EBONY LEATHER , COLOUR CODED PARTS , SIDE PROTECTION TUBES , HIDDEN WINCH (12000 LBS) , 19" HSE WHEELS.
Toys...Freeview Tv and Radio , Dvd Player , Reversing Camera , LR Bluetooth Kit , Remote Dialing Webasto Heater , Rear Strobes , USB Tyre Pressure Monitoring System.
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| Wed Jul 16 2008 6:07pm |
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bobbycrispbox
Joined: 15 May 2006
Location: The Peaks
Posts: 1313
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I did buy a couple, but they don't seem to be doing much for me. I'm going to take the whole box of bits with me to Billing and if there are any rainy days I might have a bit more of a play with it all. mooie koplampen
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| Wed Jul 16 2008 6:08pm |
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NoDo$h
Joined: 02 May 2006
Location: Dodging peanuts
Posts: 5900
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Could you not divert auxilliary power through the deflector array?  Going, going...... Gone!
Carbon footprint? I neither know nor give a damn
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| Wed Jul 16 2008 9:07pm |
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Reggieb
Joined: 13 Sep 2007
Location: Watford, Herts.
Posts: 137
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You couldnt do that it would cause a back feed though the flux capacitor and short out the dilithium crystals TDV6 HSE - Light Guards - White Reflective Sticker & that something extra
No Jetboil (yet) Edit: Jetboil now arrived, whoopie!!
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| Wed Jul 16 2008 10:01pm |
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NoDo$h
Joined: 02 May 2006
Location: Dodging peanuts
Posts: 5900
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But NOT if you varied the containment field polarity to compensate for the field matrix fluctations. Going, going...... Gone!
Carbon footprint? I neither know nor give a damn
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| Wed Jul 16 2008 10:07pm |
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DiscoStu
Joined: 09 Apr 2006
Location: Essex
Posts: 6277
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christyler wrote:ooo look its an op amp and a solid state relay, good idea that.
Black Betty Tunisia 1 2 3 Power by 
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| Wed Jul 16 2008 10:09pm |
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DiscoDunc
Joined: 08 May 2006
Location: Bristol
Posts: 2456
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Who's idea was that then. A little bit 1990's if you ask me  Duncan
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| Wed Jul 16 2008 10:28pm |
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DG
Joined: 12 Dec 2005
Location: The Gaff !
Posts: 13589
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bobbycrispbox wrote:
Here's a handy tip for your 'spares' box Rob ......keep some, black electrical tape, various self-tappers and a few nut's, bolts and washers..and maybe a philips and flat head in there...you never know when you might need them too  Powered by............................
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I've been accused of vulgarity. I say that's bullshit
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| Wed Jul 16 2008 10:31pm |
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