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its like someone has a terrible mp3 to rf transmitter in their car or something playing pants R&B music.
doesn't stay for long though fades out like they are moving away.
Look very local to you. 156.0 is probably one of the worst frequencies for low power interference from power supplies. The cheap unfiltered switch mode psus are a killer! My internet router was replaced my talktalk and shut down channel 0 in my office, until i found it and put the old power supply back. My journey to the office in my van is a noisy one. Three houses i pass in walking speed traffic have enormous amounts of noise, and one does have music quietly in the background. Probably plugged into a powered speaker. Knock on doors within 25m if the neighbours are friendly. If the interference has only just started, i bet one has had a recent delivery.
With all the noise appearing on VHF/UHF frequencies, its only going to get worse in the next 20 years or so until Marine Band will have to go digital. Its happening all over the place. In my area 433 MHz 70CM simplex band has become totally unusable because of pulsing noise covering almost all the simplex 70CM frequencies especially on 433.500. The bands will be filled with noise in the not so distant future and all services will be forced to migrate to DMR or other digital or network communications.
Agent 48 wrote: ↑25 Nov 2024, 09:07
With all the noise appearing on VHF/UHF frequencies, its only going to get worse in the next 20 years or so until Marine Band will have to go digital. Its happening all over the place. In my area 433 MHz 70CM simplex band has become totally unusable because of pulsing noise covering almost all the simplex 70CM frequencies especially on 433.500. The bands will be filled with noise in the not so distant future and all services will be forced to migrate to DMR or other digital or network communications.
Marine band will never go digital. It's worldwide. I have multiple radios, my laptop and my television in close proximity to each other, no interference on marine frequencies. Filters are available.
Agent 48 wrote: ↑25 Nov 2024, 09:07
With all the noise appearing on VHF/UHF frequencies, its only going to get worse in the next 20 years or so until Marine Band will have to go digital. Its happening all over the place. In my area 433 MHz 70CM simplex band has become totally unusable because of pulsing noise covering almost all the simplex 70CM frequencies especially on 433.500. The bands will be filled with noise in the not so distant future and all services will be forced to migrate to DMR or other digital or network communications.
Marine band will never go digital. It's worldwide. I have multiple radios, my laptop and my television in close proximity to each other, no interference on marine frequencies. Filters are available.
At the moment there are no plans for Marine Band going digital but there will be at some point in the future... I reckon within the next 20 years if not sooner. It will take time because it is a worldwide system, either that or it will become some kinda phone app or other network type of comms or something.
Just because one person has a dodgy set up doesn't mean the world has to change to suit. You can get noise through having a flat screen television, cheap power supplies etc. I have a Realistic 2402 with an Anytone 878 and a Uniden 3500 sitting on top of it and a laptop beside them and no noise. What you have in your home is inferior to what the Coastguard etc use. Channel 0 (156.000) I keep reading has interference, but the Coastguard still use it because they can't hear any.