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by someYguy
Sun Jan 01, 2017 8:44 pm
Forum: SDRplay related
Topic: Using your SDRPlay RSPx as a Spectrum Analyzer for testing
Replies: 4
Views: 2334

Using your SDRPlay RSPx as a Spectrum Analyzer for testing

Hi everyone! As an extension of my post about using your RSPx receiver as a scalar network analyzer (See that here: http://www.sdrplay.com/community/viewtopic.php?f=7&t=1562 ). This post will show that the RSPx receivers can indeed be used to accurately measure signal amplitude, frequency, and q...
by someYguy
Wed Dec 28, 2016 5:56 am
Forum: SDRplay related
Topic: Using the RSP1 with a noise source aka Scalar Network Analyzer
Replies: 8
Views: 9078

Re: Using the RSP1 with a noise source aka Scalar Network Analyzer

I thought about using Spectrum Lab for display but I couldn't get it to read out the direct frequency, and the interface seemed to be pretty crowded. Seems that of the available software, SDRSharp works best for this because it has a grid very much like a standard spectrum analyzer, and the span can...
by someYguy
Tue Dec 20, 2016 8:42 pm
Forum: SDRplay related
Topic: Using the RSP1 with a noise source aka Scalar Network Analyzer
Replies: 8
Views: 9078

Re: Using the RSP1 with a noise source aka Scalar Network Analyzer

Very good. Let me know how it all works when you get everything together :). My directional coupler is an old Merrimac type UR-1-10. Although only rated down to 10 mhz, I've had no trouble and no significant loss with using it down to about 1 mhz. I did forget to mention that I mounted my noise sour...
by someYguy
Mon Dec 19, 2016 10:01 pm
Forum: SDRuno
Topic: Antenna Referred Power Measurement.
Replies: 9
Views: 2859

Re: Antenna Referred Power Measurement.

Actually, the latest version of SDRuno does seem to have very good automatic & accurate power measurement figures, and you can easily calibrate HDSDR, SDRSharp, and SDR Console to do same. I have used the RSP1 as a test device and found it to be both sensitive and accurate once calibrated. To ca...
by someYguy
Sun Dec 18, 2016 3:12 am
Forum: SDRplay related
Topic: Using the RSP1 with a noise source aka Scalar Network Analyzer
Replies: 8
Views: 9078

Re: Using the RSP1 with a noise source aka Scalar Network Analyzer

Here are a couple of more images showing uses for this: Sweeping a Collins 455khz Mechanical Filter. The filter response curve just below the center frequency shows that this is an LSB filter, and is approx. 3.5khz wide. The spike to the left is generated within the RSP1 and should be ignored. http:...
by someYguy
Sat Dec 17, 2016 9:44 pm
Forum: SDRplay related
Topic: Using the RSP1 with a noise source aka Scalar Network Analyzer
Replies: 8
Views: 9078

Re: Using the RSP1 with a noise source aka Scalar Network Analyzer

Hi Roy, here is some additional detail: The noise source which I use is this one: http://www.ebay.com/itm/171709817697 . I run it at 7-8 volts even though it is specified at 12 volts. At 7-8 vdc, it produces a very nice, flat noise signal. The directional coupler is only needed for single port measu...
by someYguy
Fri Dec 16, 2016 2:54 pm
Forum: General
Topic: Morse code decoder?
Replies: 6
Views: 6191

Re: Morse code decoder?

Yes, you need a Virtual Audio Cable program such as VBCABLE or similar. Such a program allows you to route audio from SDRuno into other programs for decoding of digital signals. A good all-purpose decoder program for many modes (including CW I think), is called FLDIGI. There are many examples of how...
by someYguy
Thu Dec 15, 2016 11:26 pm
Forum: SDRplay related
Topic: Using the RSP1 with a noise source aka Scalar Network Analyzer
Replies: 8
Views: 9078

Using the RSP1 with a noise source aka Scalar Network Analyzer

Hi all, I've been using my RSP1 along with an inexpensive noise source (from eBay) as a Scalar Network Analyzer. Similar to a conventional spectrum analyzer/tracking generator combination. With this, I can use the RSP1 to analyze and characterize RF filters, mixers, etc. and also to tune repeater du...
by someYguy
Thu Dec 15, 2016 3:10 pm
Forum: SDRplay related
Topic: Spectrum spy alternative
Replies: 3
Views: 4664

Re: Spectrum spy alternative

I've been hoping for a dedicated spectrum analyzer program with features similar to, say, an Instek GSP-810 spectrum analyzer. The RSP receivers are certainly capable of this without modification. Such would make the RSP a very good piece of test equipment. I already do measurements with SDRuno but ...
by someYguy
Wed Dec 14, 2016 6:02 am
Forum: General
Topic: Auto scanning and recording.
Replies: 6
Views: 4852

Re: Auto scanning and recording.

I've used an older version(v1.0.0.1361) of SDRSharp along with a scanner plugin for it with so-so results. It does work for casual scanning but offers none of the recording features which you mentioned. But I'll bet that Paul is right - the SDRuno scanner will likely be awesome!

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