The forum is read-only currently.

WA2ZKD

About

Username
WA2ZKD
Joined
Visits
10,529
Last Active
Roles
Member
Points
12
  • rx.linkfanel.net receiver map moving to Leaflet

    Relative to that topic, is there any how-to, guide or documentation anywhere to improving and tuning reception quality on your KiwiSDR?

    I do not think there is anything in one spot. There are many excellent posts here in this forum. Here's a summary of my experiences:
    • Have a reasonably good antenna and keep it away from known RFI sources.
    • Be conscious of things like MW BC overload and apply filters as required
    • Avoid switching PSU, some are quiet but most are not so try to use linear PSU
    • Understand Common Mode Interference, read up on it, applies the easy remedies like use of ferrite core and intermediate grounding on your feedline
    • Watch for spurious using the [SPEC] display on a KiwiSDR client webpage, much noise can be noted by "lumps" of noise or spurs carriers at repeating spacing across a band
    • ID noise spurious by turning things on/off within your dwelling ot near the antenna
    • a partial list...
    G0LUJKA7UG8JNJ
  • rx.linkfanel.net receiver map moving to Leaflet

    Relative to that topic, is there any how-to, guide or documentation anywhere to improving and tuning reception quality on your KiwiSDR?

    I do not think there is anything in one spot. There are many excellent posts here in this forum. Here's a summary of my experiences:
    • Have a reasonably good antenna and keep it away from known RFI sources.
    • Be conscious of things like MW BC overload and apply filters as required
    • Avoid switching PSU, some are quiet but most are not so try to use linear PSU
    • Understand Common Mode Interference, read up on it, applies the easy remedies like use of ferrite core and intermediate grounding on your feedline
    • Watch for spurious using the [SPEC] display on a KiwiSDR client webpage, much noise can be noted by "lumps" of noise or spurs carriers at repeating spacing across a band
    • ID noise spurious by turning things on/off within your dwelling ot near the antenna
    • a partial list...
    G0LUJKA7UG8JNJ
  • rx.linkfanel.net receiver map moving to Leaflet

    rating receivers is pretty tricky... I see few ranking sites that are indicative of actual usefulness of receivers
    ChrisSmolinski
  • DRM Heard

    Marti DRM loud here in NY this afternoon

    Update: after noting that they were running 9 KHz BW, I pulled the corners of the passband in a tad and got an SNR improvement. China Radio Int'l sits right on the top corner of the 10 KHz passband
    ka9q
  • DRM forces BW [fixed in v1.385]

    adaptive would be great but just allowing the DX label PB value to force the BW rather than DRM forcing it would suffice
    Powernumpty
  • antenna system tool

    I bought one of the ~$50 NanoVNA and a great little device for testing and aligning coax, filters etc. Here's a shot of my notch filter box using it. NanoVNA-H is the thing to buy, see Google
    KA7U
  • AI WiFi

    all working/routing seems OK...

    After using connmancrl as above I found I need to be sure that the kiwiSDR always found wlan0. I locked the macs for both interfaces in my router. 192.168.1.73 for wlan0 and 192.169.1.173 for eth0. I used a static address in the kiwi network setup to use 192.168.1.73. (73 is site specifc, yours will vary). It works and now I wait for a smarter person than me to tell me a better way :wink:

    192.168.1.173 allows me to get in locally via wire if needed
    KA7U
  • AI WiFi

    I have successfully made my BBAI based kiwiSDR accessible by both eth0 and the AI's internal wlan0. I'll post more details after more testing.
    KA7U
  • AI WiFi

    Incremental report....

    Following this precedure gives you a wifi client, to your central router, persistant across power cycles


    cathalferrisk5mo
  • New forum search function with filtering [not applicable to new forum]

    I don't think I am alone in having issues finding the search function the first time. A reminder, it is at the bottom right corner of the page index
    JimoG0LUJ