Search found 52 matches

by alanzfq
Sat Sep 21, 2019 11:19 am
Forum: RTL-SDR Discussion
Topic: Compare field strength
Replies: 2
Views: 97

Re: Compare field strength

What do you want to do?
Comparing signal levels to within about 1dB is easy.
Actual Field Strength will need a standard, few, if any, SDRs are calibrated.
Alan
by alanzfq
Sun Sep 15, 2019 6:54 am
Forum: RTL-SDR Discussion
Topic: Dongle RTL-SDR very hot
Replies: 3
Views: 236

Re: Dongle RTL-SDR very hot

What dongle? Does it have a bias tee? Is it switched on?
That would explain.
Alan
by alanzfq
Sun Sep 15, 2019 6:52 am
Forum: RTL-SDR Discussion
Topic: Listening to AM radio
Replies: 10
Views: 426

Re: Listening to AM radio

No easy answer.
The RTL is a poor receiver, is wideband, overloads so gain setting is crucial.
And may need filters to keep out of band signals away.
Spikes are common, often just spurii, not actually real signals.

See the shop, ebay, Google

Alan
by alanzfq
Fri Sep 13, 2019 10:03 am
Forum: RTL-SDR Discussion
Topic: Listening to AM radio
Replies: 10
Views: 426

Re: Listening to AM radio

It depends on what exactly a "sky-blue 820T2 & SDR module" is.
Is it advertised as doing direct sampling? Does it have an upconverter? Ordinary RTL modules go from 24MHz upwards.
Alan
by alanzfq
Wed Sep 04, 2019 3:46 pm
Forum: RTL-SDR Discussion
Topic: Meteor Image Issues
Replies: 4
Views: 340

Re: Meteor Image Issues

by alanzfq
Wed Sep 04, 2019 6:07 am
Forum: RTL-SDR Discussion
Topic: Meteor Image Issues
Replies: 4
Views: 340

Re: Meteor Image Issues

Russ, Sorry - better antenna. Probably QFH or like.
Alan
by alanzfq
Tue Aug 20, 2019 6:48 am
Forum: RTL-SDR Discussion
Topic: RTL.SDR Chinese USB Device
Replies: 16
Views: 1886

Re: RTL.SDR Chinese USB Device

Did you use Zadig?
Alan
by alanzfq
Sat Aug 17, 2019 2:11 pm
Forum: RTL-SDR Discussion
Topic: SDR# issues
Replies: 11
Views: 1124

Re: SDR# issues

>my W10 seems to have .NET 4.7

No, the same as yours actually.
Alan
by alanzfq
Sat Aug 17, 2019 1:56 pm
Forum: RTL-SDR Discussion
Topic: SDR# issues
Replies: 11
Views: 1124

Re: SDR# issues

Well, I'd try the Airspy group again, prog does have his bad days but usually helps.
But what is "Framework Version: v4.0.30319" my W10 seems to have .NET 4.7

Alan
by alanzfq
Fri Aug 16, 2019 5:37 am
Forum: RTL-SDR Discussion
Topic: SDR# issues
Replies: 11
Views: 1124

Re: SDR# issues

SDR# questions reach the author here https://groups.io/g/airspy
Alan