peter(at)sportingaero.com
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 Posted: Sat Oct 22, 2022 4:39 am Post subject: ****SPAM**** Analogue Engine instruments near VHF radio. |
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It depends…
Becker comms do not consume much current when not transmitting so are unlikely to cause a problem until the PTT is pressed, if at all.
The Van’s manifold pressure gauge I had was very susceptible to EMI and would read zero when the PTT was pressed, even with the antenna in the back of the aeroplane.
Some of the other gauges were less sensitive but I suspected the were not well shielded.
The only real way to find out is suck it and see.
A good grounding scheme will always help along.
Some manufacturers recommend twisting the power wires, but I’m not convinced that helps and it always assumes the power and ground points are close together which is often not the case.
Peter
From: owner-aeroelectric-list-server(at)matronics.com <owner-aeroelectric-list-server(at)matronics.com> On Behalf Of Bob Verwey
Sent: 22 October 2022 09:23
To: aeroelectric-list(at)matronics.com
Subject: ****SPAM**** Analogue Engine instruments near VHF radio.
Is there any issue placing conventional electric VDO guages very close to the " round hole" Becker comm?
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