Search found 494 matches
- Fri Apr 19, 2019 7:48 am
- Forum: SDRuno
- Topic: New Computer - SDRUno and other software? AMD/Celeron?
- Replies: 2
- Views: 11487
Re: New Computer - SDRUno and other software? AMD/Celeron?
If you can afford it, go with an i3, i5 or i7. Celerons are a bit 'bargain basement' and don't have very much puff. More memory is always a good thing and a decent PC will probably come with 8 or 12 GB. I run SDRUno on an i3 and an i5 and it works fine, although I rarely go above about 6 MHz bw. My ...
- Thu Apr 18, 2019 2:16 pm
- Forum: SDRuno
- Topic: How Do I Display More Spectrum?
- Replies: 9
- Views: 31209
Re: How Do I Display More Spectrum?
You can get spans of less than 2 MHz by selecting a 'DEC' of greater than 1. If the SR is set to 2MHz and the DEC to 1, you get (about) 2MHz of spectrum. Increasing the DEC to 2 will give you 1 MHz and DEC 4 will produce 500 KHz. Sorry if this has already been mentioned, but for some reason I'm find...
- Thu Apr 18, 2019 1:24 pm
- Forum: SDRuno
- Topic: Unwanted signal on FM from a local station
- Replies: 2
- Views: 10718
Re: Unwanted signal on FM from a local station
You seem to have tried most of the dodges. Usually moving the spectrum sideways will cause a spurious signal to shift out of the way (assuming it really is a spurious generated in the receiver). Have you tried altering the sample rate/decimation?
- Thu Apr 18, 2019 1:20 pm
- Forum: SDRplay related
- Topic: FOR FM DX Which modell RSP
- Replies: 4
- Views: 17175
Re: FOR FM DX Which modell RSP
Hi. AFAIK there are no major performance differences between the models. I use the RSP2 because I like the ability to switch between two VHF/UHF antennas and also have a Hi-z input for my LF listening.
If you are concentrating on FM broadcast, the RSP1-a would be fine. They're all good.
If you are concentrating on FM broadcast, the RSP1-a would be fine. They're all good.
- Thu Apr 18, 2019 12:22 pm
- Forum: General
- Topic: For Any HDSDR Users
- Replies: 5
- Views: 19917
Re: For Any HDSDR Users
Bob - the LO frequency is the Local Oscillator, and it produces the central spike when you are using 'Zero IF' mode. IIRC, with HDSDR there will always be an offset between the LO and the 'listening' frequency, as any attempt to listen on the LO frequency will cause distortion. The 'A' simply means ...
- Sat Apr 13, 2019 3:55 pm
- Forum: General
- Topic: Just hearing static
- Replies: 1
- Views: 10010
Re: Just hearing static
Hi M. A common error is to tune to kHz instead of MHz. 'Native' frequency entry in SDRUno is kHz. If you want to use MHz, use the blue MHz button on the on-screen keypad.
If it's not that, you may have the wrong antenna selected (assuming you have the RSP2 or Duo).
If it's not that, you may have the wrong antenna selected (assuming you have the RSP2 or Duo).
- Fri Apr 12, 2019 8:09 am
- Forum: SDRuno
- Topic: Main Spectrum Settings / FFT Window choices?
- Replies: 3
- Views: 13567
Re: Main Spectrum Settings / FFT Window choices?
A couple of obvious ones to kick off with - try changing the averaging to a higher value, you should see a 'smoothing' effect on the spectrum display and it will react more slowly too. This can be useful for seeing small signals in the noise. The RBW (resolution bandwidth) is like the IF bandwidth i...
- Thu Apr 11, 2019 7:42 am
- Forum: Spectrum Analysis
- Topic: Different Spectrum Analyser with different RSP's?
- Replies: 6
- Views: 21069
Re: Different Spectrum Analyser with different RSP's?
If you mean the difference in displayed noise, haven't you got the averaging on in the second shot?
- Tue Apr 09, 2019 7:48 am
- Forum: General
- Topic: Spectrum Noise Floors: Reasonable ?
- Replies: 7
- Views: 23799
Re: Spectrum Noise Floors: Reasonable ?
It's also worth experimenting with your earth (ground) system, as ground loops can cause terrible noise injection. Through experimentation I have found that antenna grounds that are also used as equipment grounds can inject a lot of noise into a receiver. As a result I keep the grounds separated an...
- Mon Apr 08, 2019 11:35 pm
- Forum: General
- Topic: Spectrum Noise Floors: Reasonable ?
- Replies: 7
- Views: 23799
Re: Spectrum Noise Floors: Reasonable ?
Re the usb lead, I've heard the Trip-Lite ones are quite good: https://www.amazon.co.uk/Tripp-Lite-U023-006-Ferrite-Chokes-Black/dp/B003MQ29B2 They have a ferrite at each end so they radiate less hash. It's also worth experimenting with your earth (ground) system, as ground loops can cause terrible ...