Search found 185 matches

by JEL
Sun Feb 07, 2021 5:01 am
Forum: User Projects
Topic: SDR# NEW standalone simple DMR plugin
Replies: 1
Views: 1146

Re: SDR# NEW standalone simple DMR plugin

Thank you for this. I have been having success with the DMR for digital amature-radio. I have not heard any signals work with dPMR, but could be I just haven't come across any. The sound is super-compressed though, which I assume is just how DMR sounds. It has the same super-compressed sound when I ...
by JEL
Thu Feb 04, 2021 9:36 am
Forum: Antennas
Topic: Loop on ground question
Replies: 3
Views: 798

Re: Loop on ground question

Thank you.

I'm still pondering this and receiving advice from various places, so no concrete build-plans (or experimental results) yet.
by JEL
Mon Jan 25, 2021 2:01 pm
Forum: Antennas
Topic: Loop on ground question
Replies: 3
Views: 798

Loop on ground question

For receiving only! Not for transmitting. Would you rather... A: 1 loop of wire equivalent to 1 full wave-length at desired reception-frequency (So the wire has the length of 1 full wave-length) B: 2 turns of wire, so the wire is technically double the wave-length (2 times longer than desired wave-l...
by JEL
Tue Jan 19, 2021 8:02 am
Forum: Signal Identification Help
Topic: Can you decode multitone-paging?
Replies: 2
Views: 854

Re: Can you decode multitone-paging?

rtlsdrdev-user wrote:
Mon Jan 18, 2021 5:41 pm
I would suggest using SmartRF Studio 7 + CC1101 +SmartRF04EB or Universal Radio Hacker for signal inspection
I will take a look at your link.
Thanks.
by JEL
Mon Jan 18, 2021 12:41 am
Forum: Signal Identification Help
Topic: Can you decode multitone-paging?
Replies: 2
Views: 854

Can you decode multitone-paging?

Example-signal: https://www.youtube.com/watch?v=b3cglHTqaDw Is this Multitone-Paging? As described on this page: https://www.sigidwiki.com/wiki/Multitone_Paging It sounds like POCSAG but I can't get PDW to decode it. The public frequency-listing says the frequency belongs to the local hospital. Is t...
by JEL
Mon Dec 14, 2020 7:33 pm
Forum: RTL-SDR Discussion
Topic: SDR# Settings
Replies: 1
Views: 748

Re: SDR# Settings

snifftheglove wrote:
Wed Nov 25, 2020 12:50 pm
Is there a way to save settings in SDR#?
It saves the current settings automatically whenever you close it, but only if the files and folder aren't write-protected.

So right-click on the folder or all the files and un-tick the write-protection check-box.
by JEL
Mon Dec 14, 2020 7:08 pm
Forum: Antennas
Topic: Static shock while connecting ground-wire to radio?
Replies: 14
Views: 14729

Re: Static shock while connecting ground-wire to radio?

Hi, coming to the party late, just joined. I am a bit concerned, that this may not be a static charge, but bad connections in your electrical box. It's been a long time since I went to Electronic school in the navy, but I am under the impression that the voltage between the neutral wire and ground ...
by JEL
Fri Aug 28, 2020 2:45 pm
Forum: Signal Identification Help
Topic: Is this interference i see at 137MHz?
Replies: 23
Views: 8669

Re: Is this interference i see at 137MHz?

This one i call the airband monster. I get those too. I am using the Airspy HF+ Discovery, but with that radio they are dependent on the gain (Or attenuation, as it is on the discovery) If I change the attenuation they will either show up or go away, at the frequency I am on. So that obviously make...
by JEL
Mon Jul 20, 2020 6:41 am
Forum: Antennas
Topic: Airspy YouLoop
Replies: 17
Views: 7486

Re: Airspy YouLoop

I'd say you've done pretty well, working with the restrictions put on you by the HOA. Are you using a balun or transformer to match the feed lines to the loops? Why did you not feed them both the same way? You mentioned your noise floor is some concern. Mine varies quite a lot, and as I sit here ty...
by JEL
Sun Jul 19, 2020 4:25 am
Forum: Signal Identification Help
Topic: switch mode power supply? (Tone sweeps)
Replies: 0
Views: 1382

switch mode power supply? (Tone sweeps)

It seems whenever people post spectrum-grabs like the one I have attached below, the source is called out to be a switched-mode-power-supply (Often known as 'SMPS' on google apparently) Does the spectrum I attached look like such a thing? There are multiple sweeps. They do not all sweep the same way...