Search found 203 matches
- Sat Dec 17, 2016 10:55 am
- Forum: SDRuno
- Topic: Antenna Referred Power Measurement.
- Replies: 9
- Views: 27331
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 meaningful. In SDR ...
- Tue Dec 13, 2016 10:11 am
- Forum: SDRuno
- Topic: SDRUno RSP1 NB doesn't do much
- Replies: 6
- Views: 22372
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...
- Mon Dec 12, 2016 5:49 pm
- Forum: SDRuno
- Topic: SDRUno RSP1 NB doesn't do much
- Replies: 6
- Views: 22372
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...
- Thu Dec 08, 2016 5:34 pm
- Forum: SDRplay related
- Topic: RSP1 with Win10 MiniPC
- Replies: 5
- Views: 15869
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...
- Tue Dec 06, 2016 10:09 am
- Forum: SDRplay related
- Topic: RSP1 with Win10 MiniPC
- Replies: 5
- Views: 15869
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...
- Mon Dec 05, 2016 7:05 pm
- Forum: SDRuno
- Topic: QRN (noise) reduction?
- Replies: 6
- Views: 25407
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. ...
- Sat Dec 03, 2016 12:43 pm
- Forum: SDRuno
- Topic: Won't load a new file for playback while playing a file
- Replies: 5
- Views: 16125
Re: Won't load a new file for playback while playing a file
Click on OPT in MAIN window, Select input, WAV file?
73, Heinrich
73, Heinrich
- Thu Dec 01, 2016 10:07 am
- Forum: SDRplay related
- Topic: Is the SDRplay a good approach for recording PAL signals?
- Replies: 2
- Views: 10148
Re: Is the SDRplay a good approach for recording PAL signals?
Maybe I have not fully understood your intention and what you want to do with the IQ baseband spectrum you can record with SDRuno. I have digitialized a lot of old VHS videos with a frame grabber (an old Terratec Grabster AV 300 MX taking up the S-video output of my old VHS machine) and the free Vir...
- Thu Dec 01, 2016 9:25 am
- Forum: SDRuno
- Topic: My workaround for recording with SDRuno 1.11
- Replies: 1
- Views: 7810
Re: My workaround for recording with SDRuno 1.11
If you are only interested in the audio (not the IF/IQ baseband spectrum in first place) you can also do recordings with software (like Audacity or similar). When your PC still has a stereo mix line (must sometimes be activated in the systems audio settings) you can record any audio which is running...
- Wed Nov 30, 2016 10:09 am
- Forum: SDR Antennas
- Topic: Beverage antenna
- Replies: 4
- Views: 17067
Re: Beverage antenna
I hope you are not kidding.bubblegumpi wrote:Is that an antenna made from a beer can?
http://www.mwcircle.org/mw_loop_beverage.htm
73s, Heinrich