Search found 18 matches

by nospam
Fri Feb 07, 2020 6:16 pm
Forum: RTL-SDR Discussion
Topic: Broadcast AM filter - RF power tolerance?
Replies: 5
Views: 2389

Re: Broadcast AM filter - RF power tolerance?

I would use a relay to bypass around that filter. Simple thing to do. Most xmtrs have a signal that comes out that asserts when you transmit. I made one for my rsp1 and my ham rig. When I xmit on the ham rig the antenna switches to the rig and another set of contacts grounds the input of the rsp1 ju...
by nospam
Fri Nov 22, 2019 4:28 pm
Forum: RTL-SDR Discussion
Topic: sdr play features?
Replies: 3
Views: 1022

Re: sdr play features?

I've got an rsp on order so I was hoping I could use sdrplay. I actually prefer hdsdr but I don't think that it will manage the switching of those bandpass filters unless that's somehow built into the hardware to recognize the frequency and switch in the appropriate filter. I'm thinking only sdrplay...
by nospam
Sat Nov 16, 2019 1:02 pm
Forum: RTL-SDR Discussion
Topic: sdr play features?
Replies: 3
Views: 1022

sdr play features?

I've been tinkering with sdrplay with e4000 dongle. I think I've got it all installed properly. I've also played with SDRSHARP and HDSDR. SDRPLAY seems to be missing an obvious key feature. On HDSDR I can click drag the spectrum to any band of frequencies I want. I can't make that kind of function h...
by nospam
Fri Nov 15, 2019 12:23 am
Forum: RTL-SDR Discussion
Topic: distorted FM
Replies: 12
Views: 2790

Re: distorted FM

by click dragging the edge of the envelope so the bandwidth is expanded. My experience is that with most FM the distortion is due to using too narrow a filter, the FM modulation goes outside the filter. Another option, try installing sdruno. Its free too.
by nospam
Wed Nov 13, 2019 6:31 pm
Forum: RTL-SDR Discussion
Topic: distorted FM
Replies: 12
Views: 2790

Re: distorted FM

Have you tried adjusting the bandwidth of the filter? It looks like there is some clipping of content between the main signal and those 2 digital sidebands?

Have you observed the same problem on other FM stations?
by nospam
Mon Nov 11, 2019 11:37 am
Forum: RTL-SDR Discussion
Topic: SDRUNO version EXTIO
Replies: 2
Views: 941

Re: SDRUNO version EXTIO

Sorry for my bad, I forgot how to properly run sdrplay with usb dongle. It requires that I execute SDRuno.EXTIO.exe instead of just SDRUno. Then it works fine.
by nospam
Sun Nov 10, 2019 9:30 pm
Forum: RTL-SDR Discussion
Topic: sdrplay fails -no available rsps
Replies: 1
Views: 698

sdrplay fails -no available rsps

I had been running sdrplay with the old rtl2832 dongle. On a W7 32bit lenovo laptop. The extio2832.dll is in the my documents folder. However, last week when I launch it fails with “no available rsps available”. This same dongle will work with sdrsharp and hdsdr on the same laptop so something has c...
by nospam
Fri Oct 11, 2019 7:20 pm
Forum: RTL-SDR Discussion
Topic: SDR has clear strong signal, 2 Meter ham rig has bad signal using same antenna
Replies: 4
Views: 1282

Re: SDR has clear strong signal, 2 Meter ham rig has bad signal using same antenna

Besides possible antenna connection problems something could have blown out the front end receive transistor/fet of your handy talky. I would think even the lowly uv5r would have a better receiver than a dongle.
by nospam
Fri Oct 11, 2019 6:30 pm
Forum: RTL-SDR Discussion
Topic: sdr uno hdsdr how are filters set?
Replies: 3
Views: 1123

sdr uno hdsdr how are filters set?

I think sdruno works with hdsdr, right? If so I'm wondering how the programming of all those bandpass filters is managed? Is the desired frequency information sent via usb up to the rsp1 unit that then selects the proper bandpass?
by nospam
Fri Oct 11, 2019 5:58 pm
Forum: RTL-SDR Discussion
Topic: best place to ask sdrplay questions
Replies: 1
Views: 796

best place to ask sdrplay questions

Can anyone recommend a good forum to discuss sdrplay installation software? I know that the sdrplay official site is shutdown and I am not getting any responses here. My question at the moment is related to getting sdrplay to run under w10. I have it running on w10. I had to put the extio.dll in the...