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Fix Markdown
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@ -268,7 +268,7 @@ Use this slider to adjust the black level of the video signal on a 0 to 1V scale
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<h3>12: Horizontal synchronization pulse length</h3>
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<h3>12: Horizontal synchronization pulse length</h3>
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This is the length in time units of a horizontal or line synchronization pulse. The value depends on the nominal line length as described above. The pulse length is derived from the 4.7 μs pulse of a 625 lines and 25 FPS standard system with a 64 μs line length. For example with a 625 lines &#times; 12 FPS transmission that has a line length of ≈133.33 μs this is (4.7 ÷ 64) × 133.33 ≈ 9.79 μs.
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This is the length in time units of a horizontal or line synchronization pulse. The value depends on the nominal line length as described above. The pulse length is derived from the 4.7 μs pulse of a 625 lines and 25 FPS standard system with a 64 μs line length. For example with a 625 lines × 12 FPS transmission that has a line length of ≈133.33 μs this is (4.7 ÷ 64) × 133.33 ≈ 9.79 μs.
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<h2>C: Image</h2>
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<h2>C: Image</h2>
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@ -167,7 +167,7 @@ The file name is constructed as follows where date is the day date in YYYYMMDD f
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Files will be stored in the system application data location in the `ft8/logs` folder. The application data location depends on the O/S:
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Files will be stored in the system application data location in the `ft8/logs` folder. The application data location depends on the O/S:
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- Linux: ~/.local/share/f4exb/SDRangel
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- Linux: `~/.local/share/f4exb/SDRangel`
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- Windows: C:\Users\<your user>\AppData\Local\f4exb\SDRangel
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- Windows: C:\Users\<your user>\AppData\Local\f4exb\SDRangel
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<h3>C.9: Record baseband</h3>
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<h3>C.9: Record baseband</h3>
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@ -4,7 +4,7 @@
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This plugin can be used to calculate the noise figure (NF) of a receiver (SDR as well as optionally one or more LNAs). It uses the Y-factor method and requires a calibrated noise source.
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This plugin can be used to calculate the noise figure (NF) of a receiver (SDR as well as optionally one or more LNAs). It uses the Y-factor method and requires a calibrated noise source.
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The noise figure of a receiver is important, as it determines the noise floor: Noise floor (dBm) = 10*log10(1000kT)+NF+10*log10(BW)
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The noise figure of a receiver is important, as it determines the noise floor: Noise floor (dBm) = 10\*log10(1000kT)+NF+10\*log10(BW)
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The noise figure will vary with frequency and gain settings. Typically, the noise figure will increase with frequency and decrease with gain. When measuring noise figure, AGC should be disabled.
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The noise figure will vary with frequency and gain settings. Typically, the noise figure will increase with frequency and decrease with gain. When measuring noise figure, AGC should be disabled.
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@ -74,7 +74,7 @@ Right click to open a dialog to adjust additional Transmit Settings, including t
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Predefined text supports the following variable substitutions:
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Predefined text supports the following variable substitutions:
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* ${callsign} - Gets replaced with the station name from Preferences > My Position
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* ${callsign} - Gets replaced with the station name from Preferences > My Position
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* ${location} = Gets replaced with the Maidenhead locator for the position specified under Preferences > My Position
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* ${location} - Gets replaced with the Maidenhead locator for the position specified under Preferences > My Position
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The substitutions are applied when the Transmit Settings dialog is closed.
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The substitutions are applied when the Transmit Settings dialog is closed.
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@ -111,7 +111,7 @@ Right click to open a dialog to adjust additional Transmit Settings, including t
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Predefined text supports the following variable substitutions:
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Predefined text supports the following variable substitutions:
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* ${callsign} - Gets replaced with the station name from Preferences > My Position
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* ${callsign} - Gets replaced with the station name from Preferences > My Position
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* ${location} = Gets replaced with the Maidenhead locator for the position specified under Preferences > My Position
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* ${location} - Gets replaced with the Maidenhead locator for the position specified under Preferences > My Position
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The substitutions are applied when the Transmit Settings dialog is closed.
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The substitutions are applied when the Transmit Settings dialog is closed.
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@ -4,7 +4,7 @@
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This output sample sink plugin sends its samples to a [USRP device](https://www.ettus.com/products/).
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This output sample sink plugin sends its samples to a [USRP device](https://www.ettus.com/products/).
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When using a USRP device over a network, you have to create a non discoverable device reference in the [user arguments dialog](https://github.com/f4exb/sdrangel/blob/master/sdrgui/deviceuserargs.md) from the main window Preferences > Devices menu. You must use the USRP hardware ID then specify the device address with an addr parameter in the user arguments for example: addr=192.168.1.10. Note that this will become effective once SDRangel is restarted.
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When using a USRP device over a network, you have to create a non discoverable device reference in the [user arguments dialog](https://github.com/f4exb/sdrangel/blob/master/sdrgui/deviceuserargs.md) from the main window Preferences > Devices menu. You must use the USRP hardware ID then specify the device address with an addr parameter in the user arguments for example: `addr=192.168.1.10`. Note that this will become effective once SDRangel is restarted.
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<h2>Interface</h2>
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<h2>Interface</h2>
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@ -43,7 +43,7 @@ This is the center frequency received in the stream meta data. When setting it,
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<h3>4: Stream sample rate</h3>
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<h3>4: Stream sample rate</h3>
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This is sample rate (actually the frequency span) received in the stream meta data. When setting it, it will try to set the sample rate and frequency span of the IQ Demodulator` in RTSA suite the closest to the `HTTP server`.
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This is sample rate (actually the frequency span) received in the stream meta data. When setting it, it will try to set the sample rate and frequency span of the `IQ Demodulator` in RTSA suite the closest to the `HTTP server`.
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<h3>5: Remote address and port</h3>
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<h3>5: Remote address and port</h3>
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@ -4,7 +4,7 @@
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This input sample source plugin gets its samples from a [USRP device](https://www.ettus.com/product-categories/usrp-bus-series/).
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This input sample source plugin gets its samples from a [USRP device](https://www.ettus.com/product-categories/usrp-bus-series/).
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When using a USRP device over a network, you have to create a non discoverable device reference in the [user arguments dialog](https://github.com/f4exb/sdrangel/blob/master/sdrgui/deviceuserargs.md) from the main window Preferences > Devices menu. You must use the USRP hardware ID then specify the device address with an addr parameter in the user arguments for example: addr=192.168.1.10. Note that this will become effective once SDRangel is restarted.
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When using a USRP device over a network, you have to create a non discoverable device reference in the [user arguments dialog](https://github.com/f4exb/sdrangel/blob/master/sdrgui/deviceuserargs.md) from the main window Preferences > Devices menu. You must use the USRP hardware ID then specify the device address with an addr parameter in the user arguments for example: `addr=192.168.1.10`. Note that this will become effective once SDRangel is restarted.
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<h2>Interface</h2>
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<h2>Interface</h2>
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@ -140,5 +140,6 @@ The stream warning indicators are reset when the acquisition is started.
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On Ubuntu 20, the libuhd-dev package should be installed. The FPGA images then need to be downloaded with:
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On Ubuntu 20, the libuhd-dev package should be installed. The FPGA images then need to be downloaded with:
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```shell
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sudo /usr/lib/uhd/utils/uhd_images_downloader.py
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sudo /usr/lib/uhd/utils/uhd_images_downloader.py
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```
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@ -107,7 +107,7 @@ Check this box to activate the RTP protocol over UDP. RTP parameters are as foll
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- Channels: 1 for mono (Left, Right and Mixed copy channels mode); 2 for stereo (Stereo copy channels mode)
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- Channels: 1 for mono (Left, Right and Mixed copy channels mode); 2 for stereo (Stereo copy channels mode)
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- Address and port: destination address and port (local on the client machine)
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- Address and port: destination address and port (local on the client machine)
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You may read the RTP stream using a SDP file (extension `.sdp`) that can be read with any program supporting SDP files (VLC, MX player, ffmpeg, ...). For a mono 48000 S/s stream at address `192.168.0.34:9998 and L16 codec the contents of the file would be as follows:
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You may read the RTP stream using a SDP file (extension `.sdp`) that can be read with any program supporting SDP files (VLC, MX player, ffmpeg, ...). For a mono 48000 S/s stream at address `192.168.0.34:9998` and L16 codec the contents of the file would be as follows:
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```
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```
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c=IN IP4 192.168.0.34
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c=IN IP4 192.168.0.34
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@ -10,9 +10,11 @@ The SDRangel source tree is mounted in both containers as writable so the genera
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<h2>Install Docker on Ubuntu</h2>
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<h2>Install Docker on Ubuntu</h2>
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```shell
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sudo apt install docker.io docker-buildx docker-compose
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sudo apt install docker.io docker-buildx docker-compose
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sudo usermod -aG docker $USER
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sudo usermod -aG docker $USER
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* reboot *
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sudo reboot
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```
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<h2>Server</h2>
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<h2>Server</h2>
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