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gps-au
Member Since: 14 Apr 2009
Location: Sydney
Posts: 48
  
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| HF - Birdies when engine actually running ? |
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Hi Folks,
Recently fitted a Codan 9323 to the D3.
Unfortunately it seems that the vehicle is producing some birdies, but only when the the engine is actually running which to me points to an ECU.
Just wondering if others have experienced this and have found a solution.
One strong one is @ 21.185Mhz which of course is bang on one of my travellers nets..
Gary
vk2zbb.
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 Wed Sep 01 2010 9:51am |
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Bodsy
Site Sponsor
Member Since: 06 Nov 2006
Location: In the clubhouse.
Posts: 15003
 
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Uh, can someone please translate into English...?  How To ? - Change your Brake Disks Pads Shoes Sensors August 2011 NEW V1.6a
Clubs MTR – MANTEC – RAI – Traxide – Engel - Tree Sliders
Club MSV2 - Multi-Vehicle
If you like a lot of chocoloate on your biscuit.....
Disco3Club
I can update - Clock on Dash/4x4 Screen/3Flash Indicators/SatNav On The Move and other Software updates. Gearbox re-flash/reset etc.
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| Wed Sep 01 2010 10:11am |
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DiscoDad
Member Since: 06 Nov 2006
Location: Just off the A1 between the M18 & M62
Posts: 2818
 
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Bodsy you klutz! Mr. gps-au is obviously a radio enthusiast and is asking if any similar minded folk have experienced HF interference from the ECU on the D3 before! 
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| Wed Sep 01 2010 10:24am |
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DiscoDunc
Member Since: 08 May 2006
Location: Bristol
Posts: 9687
 
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Yeah Bodsy - You clutz !
Even I knew that  Duncan
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If I'd known I was going to be so thirsty this morning I'd have drunk more beer last night.
D3 HSE 2006, Locking Rear Diff, 4 x LF140s, 4 x Bosch Roof Lights, Frontrunner rack, RLD Rock sliders, Winch, RAI, Twisted Exhaust, Cooper STs, GSM FBH, Painted in a proper colour !, limo Tint SupaGlass
D4 HSE 2010, RAI, Winch, Locking Rear Diff, Remote Park Heater, Hybrid TV, Heated Steering Wheel, Adaptive Lights, Limo Tints
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| Wed Sep 01 2010 10:41am |
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Bodsy
Site Sponsor
Member Since: 06 Nov 2006
Location: In the clubhouse.
Posts: 15003
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Thanks for the clarification Les  How To ? - Change your Brake Disks Pads Shoes Sensors August 2011 NEW V1.6a
Clubs MTR – MANTEC – RAI – Traxide – Engel - Tree Sliders
Club MSV2 - Multi-Vehicle
If you like a lot of chocoloate on your biscuit.....
Disco3Club
I can update - Clock on Dash/4x4 Screen/3Flash Indicators/SatNav On The Move and other Software updates. Gearbox re-flash/reset etc.
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| Wed Sep 01 2010 10:43am |
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Ent
Member Since: 12 Oct 2007
Location: Gt Eccleston
Posts: 3139
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Bodsy wrote:Thanks for the clarification Les
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| Wed Sep 01 2010 11:11am |
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Bodsy
Site Sponsor
Member Since: 06 Nov 2006
Location: In the clubhouse.
Posts: 15003
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 Yes, great set on the picture... How To ? - Change your Brake Disks Pads Shoes Sensors August 2011 NEW V1.6a
Clubs MTR – MANTEC – RAI – Traxide – Engel - Tree Sliders
Club MSV2 - Multi-Vehicle
If you like a lot of chocoloate on your biscuit.....
Disco3Club
I can update - Clock on Dash/4x4 Screen/3Flash Indicators/SatNav On The Move and other Software updates. Gearbox re-flash/reset etc.
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| Wed Sep 01 2010 11:16am |
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Navigator
Member Since: 17 Mar 2010
Location: I was on the road to Nowhere, but must have taken a wrong turning . .
Posts: 1859
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| Re: HF - Birdies when engine actually running ? |
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gps-au wrote: Unfortunately it seems that the vehicle is producing some birdies, but only when the the engine is actually running which to me points to an ECU.
I've been putting this down to the data bus. Working up at VHF/UHF there is a huge difference between interference on internal and external antennae. Trying to shield bus is impractical, but one could shield ECU. 
Land Rover - Making mechanics out of drivers since 1948.
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| Wed Sep 01 2010 6:45pm |
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gps-au
Member Since: 14 Apr 2009
Location: Sydney
Posts: 48
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| Re: HF - Birdies when engine actually running ? |
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Navigator wrote:gps-au wrote: Unfortunately it seems that the vehicle is producing some birdies, but only when the the engine is actually running which to me points to an ECU.
I've been putting this down to the data bus. Working up at VHF/UHF there is a huge difference between interference on internal and external antennae. Trying to shield bus is impractical, but one could shield ECU.
I think I am going to have to do some sniffing (oh that will prob set them off again 
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| Thu Sep 02 2010 2:14pm |
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Trackman
Member Since: 16 Apr 2010
Location: Glasgow
Posts: 345
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As the cable harness is not screened, RF is everywhere within the vehicle as none of the wiring is screened but the rear of the vehicle is quieter.
Have you checked to see if the noise is being picked up by the aerial or conduced via the rig power cables? Try powering the rig straight from the battery if you have picked up power from within the cabin.
You could try double screened aerial cable but ......
Good luck,
Ian
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| Thu Sep 02 2010 11:28pm |
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