Page 1 of 1
Monitors radiating on 144.750?
Posted: Fri Oct 20, 2017 11:22 am
by g8gtz
Hi
I'm sure this has been mentioned before - possibly on the G4KLB Sunday night show - but Ed G3VPF is reporting that his flat screen monitor radiates bang on 144.750.
Does anyone have a cure or if not can recommend a small screen that does not radiate?
73 - Noel G8GTZ
Re: Monitors radiating on 144.750?
Posted: Sun Nov 05, 2017 10:22 am
by M0DTS
My LG E2242 does exactly the same.
Refresh rate adjustments seem to have no effect.
I wound about 5 turns on a ferrite right at the power input (12v) which helps but not a lot, that is not easy if it is direct mains input!
My antennas are about 40m away from the shack so i can manage.
Best answer is to change monitor, or swap with someone not into ATV?!
Rob
Re: Monitors radiating on 144.750?
Posted: Sun Nov 05, 2017 1:46 pm
by g0mjw
g8gtz wrote:Hi
I'm sure this has been mentioned before - possibly on the G4KLB Sunday night show - but Ed G3VPF is reporting that his flat screen monitor radiates bang on 144.750.
Does anyone have a cure or if not can recommend a small screen that does not radiate?
73 - Noel G8GTZ
My DELL 4K display seems OK.Its using displayport rather than HDMI which might have something to do with it.
Re: Monitors radiating on 144.750?
Posted: Mon Nov 06, 2017 11:35 am
by VK5YYY
We get noise on our 446.5mhz DVB-T here in VK, VK5ALX tracked it down to the HDMI leads
So we don't run HDMI near a pre-amp for example, good quality HDMI leads are better
Putting you pre-amp at the back of a TV with HDMI leads is asking for trouble we found
Is it a coincidence that it's three times the frequency you speak of or the same problem
Cheers Roger
Re: Monitors radiating on 144.750?
Posted: Tue Nov 07, 2017 10:54 am
by g8vpg
The Satlink WS6906 also radiates on 144.750MHz, but being a self-contained unit, I don't think it would be easy to cure. Perhaps a metal box with a gauze covered aperture to view the screen?
73 Shaun G8VPG.