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I've used several laptops, including an elderly P6200, an i3 and an i5, all clocked between 2.1 and 2.4 GHz and from 1 to 8 GB of memory. All have 15 inch screens and standard Intel HD 5500-type onboard graphics. All work fine, although the old P6200 could stutter a bit above 6 MHz b/w. The rest of ...
- Mon Feb 04, 2019 9:15 am
- Forum: Code Corner
- Topic: AM modulation monitor software
- Replies: 3
- Views: 675
Hi Mark. I'm a bit confused - what does this do that an SDR cannot do itself? Is it not just receiving off-air signals and displaying the spectrum? Sorry if I've missed something obvious (it wouldn't be the first time...).
- Sat Feb 02, 2019 10:53 am
- Forum: SDRuno
- Topic: RSP error (tune) SDRuno will terminate
- Replies: 7
- Views: 3518
Is this the crash that happens when you tune through certain band edges? I seem to recall it only happens if you have the 'Gain Reduction' slider set to 'RF Gain' . It's something like that, but I don't recall exactly.
- Thu Jan 31, 2019 1:04 pm
- Forum: SDR Antennas
- Topic: A query regarding eathing (grounding)
- Replies: 5
- Views: 889
Oh no. If you ask a hundred people you'll get a hundred conflicting opinions. My experiences suggest that these days, with all manner of devices dumping noise onto the mains and into the earth system, there is no hard and fast rule. I've found that on some bands an earth can make the noise less, on ...
- Tue Jan 29, 2019 9:44 pm
- Forum: SDR Antennas
- Topic: Intefearance reducing/anti jamming antenna
- Replies: 4
- Views: 743
I'd like to see an 'equivalent circuit' to that, as I can't work out what is meant to be happening. It looks like (perhaps) it's a version of the QRM eliminator idea, where a null is introduced into the radiation pattern of the radio's antenna by combining the signal from the other antenna in antiph...
My LW/LF listening is spoiled by high noise levels from local gadgets, and the only cure was to get a loop. I use the Wellbrook 1530 but there are other types. If you are handy you can make your own using the well-known PA1M circuit. If you want it to go down to VLF, use a mix 73 ferrite transformer...
The most common cause of 'no reception' is confusion over MHz or kHz frequency entry. Make sure when you enter the airband frequency you are entering in MHz by pressing the blue MHz key (on the on-screen keyboard) or adding the extra digits in kHz. You'd be surprised just how often this error comes ...
Same here Mike. Older versions of SDRUno used to get in a tizz over antenna switching, but it's been sorted out for quite a while now. Very odd. I know there used to be a problem if you accidentally tuned below 0Hz as well, but that one was weeded out a while back too.