Search found 9 matches

by mikebrock
Sat Jan 14, 2017 11:51 am
Forum: SDR Antennas
Topic: Delta loop antenna - advice please...
Replies: 2
Views: 1203

Delta loop antenna - advice please...

Hi I'm planning on purchasing a delta loop horizontal hf antenna. My back yard has 50.8 meters maximum circumference in a rectangular shape. My question is will I be able to tune up to the 80 meter band with an atu and receive decent signals? Currently I'm using an end fed 40 meters long wire with 9...
by mikebrock
Sun Oct 30, 2016 9:27 pm
Forum: SDRuno
Topic: S meter adjustment ?
Replies: 2
Views: 1417

Re: S meter adjustment ?

Perfect - thanks :D
by mikebrock
Sun Oct 30, 2016 8:06 pm
Forum: SDRuno
Topic: S meter adjustment ?
Replies: 2
Views: 1417

S meter adjustment ?

Can the S meter be adjusted?

If it can how?

cheers
by mikebrock
Tue May 10, 2016 1:28 am
Forum: SDRplay related
Topic: Ferrite and interference spikes?
Replies: 10
Views: 5813

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..... http://i3.photobucket.com/albums/y73/mikebrock/Capture_zpsevjdip3p.png http://i3.photobucket.com/albums/y73/mikebrock/Capture2_zpsg7kjthtr.png
by mikebrock
Tue May 10, 2016 12:57 am
Forum: SDRplay related
Topic: Ferrite and interference spikes?
Replies: 10
Views: 5813

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: 5813

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: 5813

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: 2689

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: 2689

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...

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