Search found 206 matches

by SteveAndrew
Tue Apr 02, 2019 8:31 am
Forum: Spectrum Analysis
Topic: Feedback for version 1.0a here
Replies: 100
Views: 23560

Re: Feedback for version 1.0a here

I have come across some confusing behaviour that I thought it worth mentioning. My understanding is that the reference level for the plot just sets the numerical level for the top of the plot. Is this correct or is it somehow used in the log function calculation? Hi Mike The "Ref - dBm" c...
by SteveAndrew
Tue Apr 02, 2019 8:23 am
Forum: Spectrum Analysis
Topic: Feedback for version 1.0a here
Replies: 100
Views: 23560

Re: Feedback for version 1.0a here

Hi Steve, Thanks for your reply. 1) I will contact Tech Support, but could you kindly explain how you define "Ref - dBm" button. Please see the attached. When the Ref is set to -40dBm, the noise floor is quite low with so many spurs. Then, setting Ref to 0dBm shows a much higher noise flo...
by SteveAndrew
Thu Mar 28, 2019 1:35 am
Forum: Spectrum Analysis
Topic: Virtual Trackgen
Replies: 30
Views: 10683

Re: Virtual Trackgen

bogdan wrote:How about the ADF4351 based boards? Would these be any good? They are supposed to work in the 35M-4.4G span.

Hi Bogdan

That looks very interesting, thank you for the links. Once I get the remaining debugging out of the way I'll get the data sheets and see what is possible.

Steve
by SteveAndrew
Tue Mar 26, 2019 10:14 pm
Forum: Spectrum Analysis
Topic: Feedback for version 1.0a here
Replies: 100
Views: 23560

Re: Feedback for version 1.0a here

Hi Steve, THE BEST NEWS POSSIBLE... IT'S FIXED!! From your questions, you also figured it out! Even though the resolution was set at 1440x900 I did not know that there was another adjustment in Control Panel - all control panel items - display; which is to "make it easier to read what's on you...
by SteveAndrew
Tue Mar 26, 2019 9:18 pm
Forum: Spectrum Analysis
Topic: Feedback for version 1.0a here
Replies: 100
Views: 23560

Re: Feedback for version 1.0a here

There is nothing you could do that would cause that. The analyser size at launch is 1286x754. Is this within your screen resolution ? Does the analyser fit within your display vertically ? Steve Tnx for reply Steve my computer screen resolution is 1440x900. Yes, the analyzer display fits vertically...
by SteveAndrew
Tue Mar 26, 2019 10:56 am
Forum: Spectrum Analysis
Topic: Feedback for version 1.0a here
Replies: 100
Views: 23560

Re: Feedback for version 1.0a here

Hi Steve, Compliments for the excellent work! I am already using it daily. One problem, though: I am unable to switch from RAW to AVG. The AVG mode never starts....Any suggestion? glovisol Averaging is only currently enabled at spans of less than 5MHz. I'm looking at ways of expanding this range. T...
by SteveAndrew
Tue Mar 26, 2019 10:45 am
Forum: Spectrum Analysis
Topic: Feedback for version 1.0a here
Replies: 100
Views: 23560

Re: Feedback for version 1.0a here

Hello, I'm not able to go on 1000 MHz and over. I'm using a RSP1 and was able to go over 1000 MHz with the older version. What i'm doing wrong ? Thank you for your help. 73 QRO, Rudi, HB9ARI PS Seems to be related to an out of range index I have an RSP1 and I'll see if I can reproduce the problem. ...
by SteveAndrew
Tue Mar 26, 2019 9:37 am
Forum: Spectrum Analysis
Topic: Feedback for version 1.0a here
Replies: 100
Views: 23560

Re: Feedback for version 1.0a here

I have found that it can take a lot of time for the peaks to calculate the frequency and db difference. I have seen it take over a minute. Is that normal? I running the software on an older laptop so that my be the problem. I just used the software to see what the harmonics look like on my dual LDM...
by SteveAndrew
Tue Mar 26, 2019 9:23 am
Forum: Spectrum Analysis
Topic: Feedback for version 1.0a here
Replies: 100
Views: 23560

Re: Feedback for version 1.0a here

Steve I am struggling with the functionality of the markers. This is not as easy to use as the "cursors" were in your first release. Using the enable peaks functions helps, but sometimes I would just like to quickly point to the crest of a peak and put a marker there. Thanks again for all...
by SteveAndrew
Tue Mar 26, 2019 9:16 am
Forum: Spectrum Analysis
Topic: Feedback for version 1.0a here
Replies: 100
Views: 23560

Re: Feedback for version 1.0a here

only suggestion would be the addition of "sweeps per second" display. this would help when fiddling with the step rate on the signal generator. attached are some return loss sweeps of a homebrew 222Mhz ground plane vertical on the "indoor range". It may be possible to add a &quo...

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