Hi,
Happy to join you for my first post on EEVBLOG, my favourite electronics blog and Youtube chanel.
I'm a french electronics and radio listener amateur, so excuse my approximative english !
I have an issue with my new PSU Siglent SPD3303D. Since i have installed the PSU in my radio shack, i have some RF perturbations in my RTL2838 SDR Radio with SDR-Radio V2.2 console
It's a brand new SPD3303D with last firmware and hardware I suppose because I don't have overshoot at turn on or <1 V
The PSU is well grounded, the RTL dongle is very far from the PSU (more than 10 meters) in an other room, but the PSU is not so far from the antenna with a HF LNA, 4 m high, and 15m of low loss cable to the RTL dongle
When the PSU is on and output chanels off, everything is ok
When I turn on a chanel I have a cyclic perturbation and when I turn on the 2 chanels I can hear the same perturbation at half frequency than the previous one. These interferences appear on single, serial or parallel mode
You can see the waterfall screenshots and the audio files here
http://1drv.ms/1t2OKzLI'll try to contact the support supply
The output signal on scope is not so bad with very few interferences in digital mode
Thank you if you have any suggestions
BR
Eric