Search found 11 matches

by kc6ete
Fri May 05, 2017 3:31 pm
Forum: New Users' experiences
Topic: Looking pretty good here
Replies: 2
Views: 713

Re: Looking pretty good here

I know about birdies, and I think I have reasonable expectations. Even my IC-R8500 has a few birdies.

I'm still learning to drive this thing, and always looking to improve.
by kc6ete
Fri May 05, 2017 3:29 pm
Forum: General
Topic: Bothersome spurs
Replies: 4
Views: 1098

Re: Bothersome spurs

It's possible that they are computer related, but I'm very puzzled that a stop and start (from the home tab in SDRPlay) changes the character of the noise completely. It sometimes, but not usually, changes if I change bandwidth. I have not seen it change when I change IF frequencies. I'm using an RF...
by kc6ete
Thu May 04, 2017 10:11 pm
Forum: General
Topic: Bothersome spurs
Replies: 4
Views: 1098

Re: Bothersome spurs

At the moment, changing bandwidths isn't helping, but the entire charachter of the spurs changes if I stop and restart the receiver without changing anything else. Seems like it's sort of random.
by kc6ete
Thu May 04, 2017 8:51 pm
Forum: New Users' experiences
Topic: Looking pretty good here
Replies: 2
Views: 713

Looking pretty good here

I just got mine last week, and I've been using it a bit. It tunes broadcast AM and FM reasonably well. My only real issue so far, is some annoying spurs that crop up from time to time but I'm probably doing something wrong. At some point, I will take it into the lab and check sensitivity etc against...
by kc6ete
Thu May 04, 2017 8:38 pm
Forum: General
Topic: Bothersome spurs
Replies: 4
Views: 1098

Bothersome spurs

I'm seeing intermittently, the appearance of spurs all over the band. These happen with no antenna, but generally don't happen if I select the High Z antenna. They are at regular intervals, and I can usually ignore them, but at the moment one is sitting right on top of a signal that I need to see. T...
by kc6ete
Mon May 01, 2017 6:38 pm
Forum: General
Topic: Extreme narrow band
Replies: 6
Views: 1458

Re: Extreme narrow band

How can I get more resolution over my small band of interest?
by kc6ete
Mon May 01, 2017 6:34 pm
Forum: General
Topic: Extreme narrow band
Replies: 6
Views: 1458

Re: Extreme narrow band

I have the waterfall resolution maxed out already. "As an aside in SDR# you can increase the resolution of the spectrum but it slows down the response a lot, but I can't see how to enhance the resolution of the waterfall." What is SDR#? I'm not too concerned about the response. The "D...
by kc6ete
Fri Apr 28, 2017 7:51 pm
Forum: General
Topic: Extreme narrow band
Replies: 6
Views: 1458

Re: Extreme narrow band

Ok, I already got that, but at least my current understanding is that the system is taking in lots more data than it needs to, and discarding most of it.

The resolution within that 200Hz slice isn't very good. I'd really like to see much finer, 1hZ if I can get it. I don't know what's possible.
by kc6ete
Fri Apr 28, 2017 5:52 pm
Forum: General
Topic: Creating a filter/demodulator
Replies: 0
Views: 412

Creating a filter/demodulator

Is there a template or example for creating a filter or demodulator? This is very much jumping in at the deep end, but I'm wanting to try something like a boxcar integrator, where the data is averaged over many carrier cycles worth of time, and this process is repeated for various frequencies. It's ...
by kc6ete
Fri Apr 28, 2017 2:48 pm
Forum: General
Topic: Extreme narrow band
Replies: 6
Views: 1458

Extreme narrow band

Ok, my unit arrived last night, and I've been poking around in SDR Console V3 How can I best configure for very narrow band CW in the 600 meter band? The smallest bandwidth I can select under Home, Bandwidth is 500kHz, so I used that. I have the display set to 200Hz wide, and I'm receiving, but each...

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