Re: [Elecraft] Strange Interference

wart. This in turn caused it to change its frequency. Needless to say, the wall wart was replaced. Interference can indeed be strange. 73, Alan. G4GNX -Original Message- From: Terry Sent: Saturday, July 23, 2016 7:43 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] Strange

Re: [Elecraft] Strange Interference

Sounds like an SMPS, it may be yours :-) I have a similar noise on 80 only. It sounds like a slight increase in the background noise as I tune across it, but it is much more pronounced on the P3, and it drifts slowly up and down by 20-30 KHz over time. It rises to a 2-3 KHz wide peak, drops

Re: [Elecraft] Strange Interference

I'm on Bainbridge Island in the west-central part of Puget Sound and I'm not hearing anything (not much in the way of signals either). Of course it is several hours later. Bob, N7XY On 7/23/16 9:37 AM, Mike Rhodes wrote: ...hmmm. Since Phil is not hearing the interference from a few miles

Re: [Elecraft] Strange Interference

On Behalf Of Terry Sent: Saturday, July 23, 2016 2:44 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] Strange Interference Thanks to all for the advice. I found the issue. It is my Powerwerx SS30DV Switching supply. I thought this supply was a good one to not create problems like I am having

Re: [Elecraft] Strange Interference

I had a similar problem with a very strong noise that increased in frequency. I wondered for weeks where it was coming from and low-and-behold - it was the Astron SS-30 sitting on top of my ham gear. I was using it for the 2 meter rig and other smaller stuff. I replaced it with a linear model and

Re: [Elecraft] Strange Interference

I've found the same issues with mine. It was fine when my antennas were outdoors, tower mounted, and a good bit away from the shack. Now that I'm reduced to using close by portable style antennas ... it's just noisy. I've tried all manner of ferrites to little avail. In the radio room I use

Re: [Elecraft] Strange Interference

My unit has an issue as well... spikes/hash every 34kHz from 160m to 10m. I think there might have been a batch slip through... because so many people report no noise. I am testing every one I can get and recording/reporting the serial numbers. I documented the issue to Elecraft and

Re: [Elecraft] Strange Interference

Thanks to all for the advice. I found the issue. It is my Powerwerx SS30DV Switching supply. I thought this supply was a good one to not create problems like I am having. Not sure if it is fixable or If I need to send it in for repair. Very 73, Terry N7TB -- View this message in context:

Re: [Elecraft] Strange Interference

On Sat,7/23/2016 9:37 AM, Mike Rhodes wrote: it sounds like the source may be something you brought with you. What all have you brought from your home QTH? Good thinking, Mike. Terry -- read my link, notice the forms that switch-mode power supplies take, like wall warts and power supplies

Re: [Elecraft] Strange Interference

Or is of a common thread at both locations. i.e. rather than hauling phone chargers around, I leave them scattered in my usual places (less to move). I do the same with similar devices (not always the stock brand). Switching supplies are common but not all meet or exceed noise requirements.

Re: [Elecraft] Strange Interference

...hmmm. Since Phil is not hearing the interference from a few miles away, it sounds like the source may be something you brought with you. What all have you brought from your home QTH? Mike / W8DN On 7/23/2016 11:49 AM, Phil Hystad wrote: Terry, I am in the mid-Puget Sound area but about

Re: [Elecraft] Strange Interference

On Sat,7/23/2016 8:42 AM, Terry Brown wrote: It occurs at any one point in time at 14.030, 14.060, 14.090 for instance, and occurs on all ham bands with the same spacing between the instances of interference. It's a switch-mode power supply, one of the most common noise sources.

Re: [Elecraft] Strange Interference

Terry, I am in the mid-Puget Sound area but about 15 miles due east of Puget Sound in Kirkland, WA. I can’t find any signals that you describe. Time currently is 8:48 AM (PDT). 73, phil, K7PEH > On Jul 23, 2016, at 8:42 AM, Terry Brown wrote: > > I am operating portable