Search found 16 matches

by mikebrock
Tue May 10, 2016 1:28 am
Forum: SDRplay related
Topic: Ferrite and interference spikes?
Replies: 10
Views: 17015

Re: Ferrite and interference spikes?

The first image shows what it is now with usb connection relocated.

The second image shows what it looked like with noisy usb. Note spikes.....

Image

Image
by mikebrock
Tue May 10, 2016 12:57 am
Forum: SDRplay related
Topic: Ferrite and interference spikes?
Replies: 10
Views: 17015

Re: Ferrite and interference spikes?

I have solved the problem - seems to have been a noisy usb port in my case. Simply changing the usb connection has completely removed those spikes. :D I will do a screenshot before and after later.
by mikebrock
Fri May 06, 2016 1:43 pm
Forum: SDRplay related
Topic: Ferrite and interference spikes?
Replies: 10
Views: 17015

Re: Ferrite and interference spikes?

Yes indeed - it seems unpleasant to the eye rather than a hindrance to be honest. Though I wonder if a top end sdr like Flex radio would suffer such a problem? Thanks for the reply ... :D
by mikebrock
Thu May 05, 2016 9:38 pm
Forum: SDRplay related
Topic: Ferrite and interference spikes?
Replies: 10
Views: 17015

Ferrite and interference spikes?

Hi - I get interference spikes at small regular intervals across the band scope - they show up as thin lines on the waterfall. I notch them out if they coincide with a signal I'm listening to. How can you get rid of them though? I have high density ferrite rings at various locations along the usb ca...
by mikebrock
Wed Dec 09, 2015 4:31 pm
Forum: SDR Antennas
Topic: Earthing outside of F-connector via mains plug?
Replies: 2
Views: 6174

Re: Earthing outside of F-connector via mains plug?

Thank you jon for the eye opener and insight into mains ground system as a effective radio ground. Certainly will be trying this out - cheers

mike
by mikebrock
Wed Dec 09, 2015 12:51 am
Forum: SDR Antennas
Topic: Earthing outside of F-connector via mains plug?
Replies: 2
Views: 6174

Earthing outside of F-connector via mains plug?

Is this method really as simple as it sounds? The way I understand it is you simply crocodile clip the outside of f-connector and run an mains earth wire into an unused mains plug earth pin and plug into household socket??? Seems odd to do that to me - but does it actually work in an sdr set up? Tho...