LimeSDR mini SkyRoof 1.5.3: no settings in "SDR Devices"/"SDR Device Settings

[Daniel Roggen]

Hi team, VE3NEA

On windows 11, SkyRoof 1.5.3, all working fine with a HackRF.

I've also some LimeSDR minis (1.0 and 2.0) which I'd like to use or test instead as they have a better ADC.

What I did:

1) Use my radioconda install to get the limesdr drivers

2) Copy LMS7Support.dll, LimeSuite.dll, libusb-1.0.dll from radioconda to  SkyRoof\lib\SoapySDR\modules0.8\

3) Launch SkyRoof and go to SDR Devices. The devices are correctly recognized (see screenshot: only one lime connected, the 2nd was connected in earlier test).

The issue:

1) There are no settings associated with the LimeSDR (see screenshot)

2) The logs show that the LimeSDR is correctly detected, as well as the parameters retrieved (see attachment, and a brief extract below):

2026-09-27 10:36:59.332Z [INF] Found SoapySDR device: 'LimeSDR Mini [USB 3] 1D58960BF1C6D0' {"KwArgs":{"driver":"lime","index":"0","label":"LimeSDR Mini [USB 3] 1D58960BF1C6D0","media":"USB 3","module":"FT601","name":"LimeSDR Mini","serial":"1D58960BF1C6D0"},"Properties":[{"Value":"LNAH","ArgInfo":{"Key":null,"Value":null,"Name":"Antenna","Description":"Antenna Input Selection","Unit":null,"Type":3,"Range":{"minimum":0.0,"maximum":0.0,"step":0.0},"Options":{"NONE":"NONE","LNAH":"LNAH","LNAL_NC":"LNAL_NC","LNAW":"LNAW","Auto":"Auto"}},"Category":"Common","Name":"Antenna"},{"Value":"true","ArgInfo":{"Key":null,

I wonder if the issue might be due to missing "Name" in a few settings:
{"Key":"SAVE_CONFIG","Value":"","Name":"","Description

Or some ranges where the min/max is all zero:

"DCOffsetMode","Description":"Automatic frontend DC offset correction","Unit":null,"Type":0,"Range":{"minimum":0.0,"maximum":0.0,"step":0.0}

Happy to hear your thoughts or test possible solutions.

73 

Daniel - M1KKL

[Daniel Roggen]

Some further info, thanks to AI....

The issue is indeed linked to the empty "Name" for 3 settings: SAVE_CONFIG, LOAD_CONFIG and OVERSAMPLING, reported by LimeSDR.

Changing Settings.json manually from (for the SAVE_CONFIG case, same for LOAD_CONFIG and OVERSAMPLING): 

              "Key": "SAVE_CONFIG",
              "Value": "",
              "Name": "",

              "Description": "Save LMS settings to file",

to

              "Key": "SAVE_CONFIG",
              "Value": "",

              "Name": "SAVE_CONFIG",
              "Description": "Save LMS settings to file",

Now leads to the "SDR Device Settings" being populated, see screenshot.

Claude suggests this fix in SkyRoof/SDR/SdrProperties.cs:

public string Name => string.IsNullOrEmpty(ArgInfo.Name) ? ArgInfo.Key : ArgInfo.Name;

I have tried the reception with LimeSDR and it works at least on a test with a local FM station, and a test transmission, so the data is received with this patch. I need however to tweak the gains more to get a satellite pass (my antenna setup is not ideal so this doesn't work reliably currently due to my antenna).

Daniel - M1KKL

[Daniel Roggen]

I can confirm satellite reception works : got ARISS, Hades in the last 3 hours.

Best 

Daniel

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[Alex VE3NEA]

Great work, Daniel! I will include your suggested fix, and will see if I can include LimeSDR dll's in the installer.

[Alex VE3NEA]

Daniel,

Please see if you can drop libusb-1.0.dll v.1.0.27 and let LimeSDR use libusb-1.0.dll v.1.0.24 in the parent folder that is already present.

[Daniel Roggen]

Hi Alex,

I've disabled the libusb which I had copied from radioconda, by renaming. SkyRoof still works with the limesdr. 

This is what I have in modules0.8:

 Directory of C:\Program Files\Afreet\SkyRoof\lib\SoapySDR\modules0.8                      
                                                                                           
27.09.2026  17:12    <DIR>          .                                                      
13.09.2026  21:32    <DIR>          ..                                                      
15.09.2026  12:09            60 928 airspy.dll                                              
15.09.2026  12:09            61 440 airspyhf.dll                                            
15.09.2026  12:09           116 224 airspyhfSupport.dll                                    
15.09.2026  12:09           118 784 airspySupport.dll                                      
15.09.2026  12:09            56 320 hackrf.dll                                              
15.09.2026  12:09           140 288 HackRFSupport.dll                                      
15.09.2026  12:09           388 096 libad9361.dll                                          
15.09.2026  12:09         1 888 768 libiio.dll                                              
06.03.2026  20:55           679 936 LimeSuite.dll                                          
06.03.2026  20:57           125 952 LMS7Support.dll                                        
15.09.2026  12:09           437 760 remoteSupport.dll                                      
15.09.2026  12:09           337 920 rtlsdr.dll                                              
15.09.2026  12:09           138 752 rtlsdrSupport.dll                                      
15.09.2026  12:09           119 296 sdrPlaySupport.dll                                      
15.09.2026  12:09            67 088 sdrplay_api.dll                                        
02.06.2025  10:24           157 696 xx libusb-1.0.dll                                      
              16 File(s)      4 895 248 bytes                                              
               2 Dir(s)  373 853 929 472 bytes free                                        

Daniel

[Alex VE3NEA]

Hi Daniel,
Thank you for your tests! I have released v.1.54, with lime sdr files as per your suggestion. Please give it a try, and see if it works the same way as your manual setup.

[Daniel Roggen]

Hi Alex,

I've tested: it works perfectly well. I did erase the Settings to make sure the settings options were fetched from the driver, so the fix works.

Thanks for your efforts - it's a nice bit of software you developed!

Daniel

[vk2...@gmail.com]

Does this mean if using a Lime, pluto, hack, etc that the waterfall can display more then 1.8 MHz?

[Alex VE3NEA]

SkyRoof reads radio capabilities from the SoapySDR module of the given radio, and decides on the bandwidth to use. Daniel, what bandwidth can you see with LimeSDR?