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| − | ==Notes==
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| − | * This capability started with version 4.39.10. As always, be sure to get the most up to date version from the website
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| − | * These instructions are built around the RSP1; for the RSP2 (maybe other SDRPlay RSPs, too), it appears you need to start RSP_TCP.exe first, but this needs confirmation
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| − | * A PC with some horsepower is needed for using TCP/IP. A PC with at least a 1 Ghz processor is a good starting point
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| − | * You will need the TCP Server app, which can be found in the SDRPlay [https://www.sdrplay.com/downloads/ downloads page]. Instructions on using the app are also there.
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| − |
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| − | ==Instructions==
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| − | When you push the '''SDRPlay''' button (figure 1), an I/Q signal will be sent through the TCP/IP server using rsp_tcp.exe. According to tests, it works with Windows 10 and possibly earlier versions of Windows.
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| − | The sampling frequency is 250 Khz (except for ADS-B, which uses a 2 Mhz sampling frequency).
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| − | The default TCP/IP parameters are given below; they can be changed by clicking the '''Options (port/adress)''' button, which is found immediately below the
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| − | '''SDRPlay''' button (figure 1).
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| − | * The default address is 127.0.0.1. To use another server, paste the server IP address here
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| − | * The default port is 1234. but it can be changed with the spin button. Valid values are from 1231 to 1250. This allows the use of several occurrences of Multipsk, each one connected to a different server and receiver.
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| − | If you wish to listen to the demodulated sound, click on the '''+Speaker''' button
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| − | Once you press the '''RX/TX Screen''' button, you can use the '''Transceiver''' form to control the frequency and gain. Note that the '''TX''' button on this form won't function (figure 2). In addition, references to Ham Radio Deluxe and Commander can be safely ignored.
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| − | To make this interface possible, several files must be copied to the Multipsk directory:
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| − | *mir_sdr_api.dll
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| − | *msvcr100.dll can be found [https://www.dll-files.com/msvcr100.dll.html here]
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| − | *pthreadVCE2.dll can be found [https://www.dll-files.com/pthreadvce2.dll.html here]
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| − | *vcruntime140.dll can be found [https://www.dll-files.com/vcruntime140.dll.html here]
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| − | *rsp_rcp.exe (thanks to F4FHH Nicolas and SDRplay)
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| − | For RSP2 users; by clicking on the "RSP2 bias-tee", the bias-tee (4.7 V / 100 mA max at the ANT-B antenna output) can be set (On) or reset (Off).
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| − | Note that this option is not stored, so, you must manually set this option each time Multipsk is started.
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| − | You can add parameters to RSP_RCP.exe using a text editor. Insert them after the '''Parameters:''' caption. These parameters don't control the
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| − | digital deocding function, rather they are used to address the SDRPlay hardware. Examples include;
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| − | <div>
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| − | -P0 for PORT A <br>
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| − | -P1 for PORT B <br>
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| − | -P2 for PORT HIz
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| − | </div>
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| − | For further details, read the [https://www.sdrplay.com/docs/SDRplay_RSP_TCP_Server_Guide.pdf SDRPlay RSP TCP Server Guide] (note this is a PDF file)
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| − | The following options are not used. Note that MultiPSK doesn't check the user parameters to see if they are correct;
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| − | <div>
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| − | -a <br>
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| − | -p <br>
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| − | -s <br>
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| − | -f
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| − | </div>
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| − |
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| − | <gallery>
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| − | Image:Multipsk sdr settings.jpg|Figure 1 - click to enlarge
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| − | Image:Multipsk transceiver form.jpg|Figure 2 - click to enlarge
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| − | </gallery>
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| − |
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| − | [[Category:HF Signal Analysis and Decoding]]
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