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by DanubeBCL
Fri Dec 23, 2016 4:28 pm
Forum: SDRuno
Topic: SDRunoExtIO no longer starts
Replies: 15
Views: 5486

SDRunoExtIO no longer starts

After installing SDRuno 1.12 I cannot start SDRunoExtIO any more. The programme terminates before anything is shown.
No problem when I go back to 1.11.
Has anyone got a similar problem? What could I have messed up?
73, Heinrich
by DanubeBCL
Tue Dec 20, 2016 10:49 am
Forum: SDRuno
Topic: Antenna Referred Power Measurement.
Replies: 9
Views: 4336

Re: Antenna Referred Power Measurement.

To David, to avoid being off topic too much I try a short answer: In Europe the powerline modems (PLT, PLC, dLAN, powerLAN etc.) have been generously allowed at high noise levels due to intensive "work" of the industry lobbyists at the European Parliament, using up to 105 dBµV broadband po...
by DanubeBCL
Mon Dec 19, 2016 5:21 pm
Forum: General
Topic: Continuing Difficulties trying to run SDRUno with HRD
Replies: 2
Views: 4089

Re: Continuing Difficulties trying to run SDRUno with HRD

HDSDR and HRD communicate with each other: HDSDR has a built in customized DDE data exchange interface which is understood by HRD and vice versa. You do not need Omnirig for this at all. HRD controls the FT-857 through COM port 5 and HRD controls HDSDR by DDE (and vice versa). SDRuno does not have t...
by DanubeBCL
Sat Dec 17, 2016 6:42 pm
Forum: SDRuno
Topic: Antenna Referred Power Measurement.
Replies: 9
Views: 4336

Re: Antenna Referred Power Measurement.

Well David, there are certainly "better" SDRs with higher direct sampling rates and so on, but I have given up to look for new SDR receivers. The ones I own (Perseus, G33DDC, Anan Angelia, apart from the toys like Funcube, RSP1 or RTL dongles) were expensive enough and it makes no sense fo...
by DanubeBCL
Sat Dec 17, 2016 10:55 am
Forum: SDRuno
Topic: Antenna Referred Power Measurement.
Replies: 9
Views: 4336

Re: Antenna Referred Power Measurement.

dBm is a power measurement unit (power in relation to 1 milliwatt). In radios the power normally is calculated from the voltage on the 50 Ohms antenna input. Maybe the "creator" of this expression wanted to express all this in one term. But I also think the expression is not very meaningfu...
by DanubeBCL
Tue Dec 13, 2016 10:11 am
Forum: SDRuno
Topic: SDRUno RSP1 NB doesn't do much
Replies: 6
Views: 6220

Re: SDRUno RSP1 NB doesn't do much

Generally, digital noise reducers are best used sparingly That's correct. There are several people (I am one of them) who can read voice under strong hiss better when noise reduction is off. The NR takes away too much of the frequencies needed in our brain to discriminate the syllables. NRs are pre...
by DanubeBCL
Mon Dec 12, 2016 5:49 pm
Forum: SDRuno
Topic: SDRUno RSP1 NB doesn't do much
Replies: 6
Views: 6220

Re: SDRUno RSP1 NB doesn't do much

Trying to pick out weak signals from the noise, I found that the NB (noise blanker) does very little to nothing. Do not confuse noise blanker and (dynamic) noise reduction. Noise blankers are made for pulse shaped noise (like those ignition sparks of very old cars or electric pasture fences or simi...
by DanubeBCL
Thu Dec 08, 2016 5:34 pm
Forum: SDRplay related
Topic: RSP1 with Win10 MiniPC
Replies: 5
Views: 2555

Re: RSP1 with Win10 MiniPC

Thanks. I have already been looking at the specs of Minix NGC 1 and Beelink BT7. They seem to have Gigabit-LAN. 12 V are important for remote operation. USB ports are needed for SDRs and remote controlling of antenna relays and such. But I have not yet made up my mind. Im am still dreaming of a remo...
by DanubeBCL
Tue Dec 06, 2016 10:09 am
Forum: SDRplay related
Topic: RSP1 with Win10 MiniPC
Replies: 5
Views: 2555

Re: RSP1 with Win10 MiniPC

I read that Nexbox Mini PCs only have 100 Mbit-LAN. Are there no models with Gigabit-LAN? The manufacturer's website is not very talkative about that. They only praise the video decoding qualities. At least Nexbox seems to provide 4 USB sockets while others only have 2 or max. 3. Can the Nexbox Mini...
by DanubeBCL
Mon Dec 05, 2016 7:05 pm
Forum: SDRuno
Topic: QRN (noise) reduction?
Replies: 6
Views: 2818

Re: QRN (noise) reduction?

Understand that normal atmospheric noise, if that's what you're referring to, *is* a signal. Directional antennas such as Yagis will reduce it from unwanted directions. Yes, I know most radios and antennas claim to be low noise. Nothing but marketing. Good radios pick up tons of atmospheric noise. ...

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