Search found 202 matches

by alanzfq
Wed Jun 16, 2021 5:09 am
Forum: RTL-SDR Discussion
Topic: Regarding extension cables
Replies: 2
Views: 54

Re: Regarding extension cables

For a start tell us what you have. Presumably a RTL dongle? v3?
What do you want to do with it? HF/VHF?
The little antenna supplied is generally of little use but that depends..
Alan
by alanzfq
Sat Apr 24, 2021 7:39 am
Forum: RTL-SDR Discussion
Topic: Calibrating RTL-SDR
Replies: 3
Views: 1411

Re: Calibrating RTL-SDR

All I have ever done is calibrate on a known frequency. IF I was certain 120.9 was truly accurate I'd use that. I am lucky to have 2 accurate ham beacons close enough. The need for calibration depends on how accurate you need to be. The V3 might be good enough for you but would need calibrating if y...
by alanzfq
Mon Apr 12, 2021 6:47 am
Forum: RTL-SDR Discussion
Topic: SDR-RTL for longwave and mediumwave
Replies: 3
Views: 771

Re: SDR-RTL for longwave and mediumwave

For local stations a v3 will probably suit you.
If you get a little critical then an upconverter will be better.
By the time you've bought those then you are not far away from the cost of an Airspy which, providing 700Khz bandwidth is acceptable, is about as good you'll get for the price.
Alan
by alanzfq
Wed Mar 24, 2021 6:30 am
Forum: RTL-SDR Discussion
Topic: GEOS Software Question?
Replies: 3
Views: 724

Re: GEOS Software Question?

A simple Google for "Nooelec GOES Weather Satellite RTL-SDR Bundle" brings me quickly back to this site where there is a good tutorial.
by alanzfq
Thu Mar 18, 2021 11:40 am
Forum: RTL-SDR Discussion
Topic: Stability Issue using Nooelec Up Converter ?.
Replies: 1
Views: 542

Re: Stability Issue using Nooelec Up Converter ?.

All radios/converters will have at least one oscillator that may drift. So you have two. How much does it drift? How much stability do you want? The RTL is more likely to drift the most although the converter will as well. A temperature controlled oscillator (TCXO) will usually satisfy most. The V3 ...
by alanzfq
Tue Mar 16, 2021 8:13 am
Forum: RTL-SDR Discussion
Topic: _u8 still most current?
Replies: 3
Views: 1769

Re: _u8 still most current?

The one intended for HDSDR is here http://www.hdsdr.de/hardware.html and maybe the later one linked has more features?
The HDSDR one is integrated, maybe the later one is not.
It probably depends on whether you are satisfied with the integrated one or want features offered by the other.
Alan
by alanzfq
Mon Mar 15, 2021 8:22 am
Forum: RTL-SDR Discussion
Topic: Why do I need an SDR?
Replies: 3
Views: 1203

Re: Why do I need an SDR?

If you are happy using on-line resources then you do not need one.

Alan
by alanzfq
Fri Mar 12, 2021 8:27 am
Forum: RTL-SDR Discussion
Topic: Want to get started ASAP, but overwhelmed by number of options
Replies: 2
Views: 729

Re: Want to get started ASAP, but overwhelmed by number of options

I'm no expert but the V3 from this site seems guaranteed.
Unless you have a reliable recommendation I'd think waiting would be best.
My guess is that all good ones will be sold..
Alan
by alanzfq
Fri Mar 12, 2021 8:22 am
Forum: RTL-SDR Discussion
Topic: Anyone tried one of these?
Replies: 4
Views: 1009

Re: Anyone tried one of these?

It is not an unknown company https://www.radioenthusiast.co.uk/news/ ... b-is-back/
But not too popular, it looks as if it just duplicates keyboard keys, a tuning know might be provided cheaper, Griffin?.

Alan
by alanzfq
Sun Mar 07, 2021 7:51 am
Forum: RTL-SDR Discussion
Topic: problem to run SDR# version 1810
Replies: 2
Views: 684

Re: problem to run SDR# version 1810

Look at the Airspy group, and the download page notes.
There are ongoing changes.
Alan