Search found 123 matches

by ON5HB
Wed Jun 05, 2019 8:50 pm
Forum: Code Corner
Topic: Sample rate and buffering samples retrieved
Replies: 4
Views: 818

Re: Sample rate and buffering samples retrieved

Weird is that your link shows a comment like this: For example, if you double the sample rate, an equivalent filter will require four times as many operations to implement. This is because both amount of data (per second) and the length of the filter increase by two, so convolution goes up by four. ...
by ON5HB
Tue Jun 04, 2019 8:35 am
Forum: New Users' experiences
Topic: Best antenna no good signals?
Replies: 6
Views: 431

Re: Best antenna no good signals?

An antenna depends on the frequencies you want to receive. There is no simple solution to receive all bands. For HF it means a very long wire and some counter point, then it will work. You may want to read this, it will get you going: https://www.sdrplay.com/wp-content/uploads/2019/01/NewcomersGuide...
by ON5HB
Mon Jun 03, 2019 6:15 pm
Forum: General
Topic: Parting thoughts
Replies: 16
Views: 1293

Re: Parting thoughts

Nobody is forced to read other people's replies. You can choose to simply ignore them and move on. On every forum in the world there will be people that post stuff that other don't like. Walk the dog, ignore it and be happy is my way. In the end you are just reading a screen and you do not know who ...
by ON5HB
Sun Jun 02, 2019 1:55 pm
Forum: SDR Antennas
Topic: New Sdrplay and antenna creation
Replies: 21
Views: 1987

Re: New Sdrplay and antenna creation

What you have "build" is an antenna with grounding at the end. It's not uncommon and it does work. Basically you probably made this beverage without knowing: http://www.teknokekko.fi/dx/mwdx/beverage.jpg Funny thing is, the longer the wire is below 80m (especially the very low bands) often...
by ON5HB
Thu May 30, 2019 8:56 am
Forum: Code Corner
Topic: rsp_tcp setup with websdr
Replies: 7
Views: 375

Re: rsp_tcp setup with websdr

If you need help, my email is listed on my websdr.

Good luck with the project.
by ON5HB
Wed May 29, 2019 7:07 pm
Forum: Code Corner
Topic: rsp_tcp setup with websdr
Replies: 7
Views: 375

Re: rsp_tcp setup with websdr

Goto websdr-base.js......change this code: function chatnewline(s) // called by updates fetched from the server { var o=document.getElementById('chatboxnew'); if (!o) return; if (s[0]=='-') { // remove line from chatbox var div=document.createElement('div'); div.innerHTML=s; s=div.innerHTML; var re=...
by ON5HB
Wed May 29, 2019 5:43 pm
Forum: Code Corner
Topic: rsp_tcp setup with websdr
Replies: 7
Views: 375

Re: rsp_tcp setup with websdr

Where is the link to your websdr? I would love to have a look at it.

Also the chatbox has a problem with spammer, I made a spam-filter for it, if you want it, let me know then I send you the code.

Trust me, the websdr-spammer will find you as soon as you publish your receiver.
by ON5HB
Wed May 29, 2019 2:37 pm
Forum: Code Corner
Topic: rsp_tcp setup with websdr
Replies: 7
Views: 375

Re: rsp_tcp setup with websdr

You need some different settings then I use. First of all, you need to compile the rsp_tcp and call it as such. Then call it like this from the websdr.cfg: ####################################################### # RSP1A 0-2 ####################################################### band RSP1A 0-2MHz de...
by ON5HB
Mon May 27, 2019 3:17 pm
Forum: SDR Antennas
Topic: New Sdrplay and antenna creation
Replies: 21
Views: 1987

Re: New Sdrplay and antenna creation

Hi Ken, You do not need to ground the antenna, it's just one way of doing it. The antenna described in the article is just a wire, as such it doesn't have a counter length. Grounding can provide that but also adding some length of counter-wire or a fence. Grounding can attract lightning and as such ...
by ON5HB
Mon May 27, 2019 3:04 pm
Forum: SDR Antennas
Topic: PA0RDT Antenna
Replies: 11
Views: 2646

Re: PA0RDT Antenna

I bought mine on ebay, this exact type: https://www.ebay.com/itm/MiniWhip-Active-Antenna-Assembled-in-Box-HF-LF-VLF-mini-whip-sdr-RX-portable/222469570201 And I fed it with cheap cable-tv coax, double shielded 75Ohm, works great BUT beware of electrical spikes, charges and rubbish nearby as it will ...

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