Search found 2473 matches

by rtlsdrblog
Sun Jan 19, 2020 10:35 am
Forum: Off-Topic
Topic: More fake units sold on Ebay
Replies: 34
Views: 36684

Re: More fake units sold on Ebay

Sorry i'd rather not release the exact component values because they were hand tuned over many iterations and component brands to get something good. The cloned ones probably didn't spend the time to check the differences in Chinese component "brands". Some of the cloned filters I tested really fail...
by rtlsdrblog
Thu Jan 16, 2020 7:56 am
Forum: KerberosSDR
Topic: RDF not Android but iOS
Replies: 1
Views: 105

Re: RDF not Android but iOS

Sorry no iOS version for the time being. Android is just much better and more common for this type of thing.
by rtlsdrblog
Thu Jan 16, 2020 7:55 am
Forum: KerberosSDR
Topic: Problems starting processing
Replies: 7
Views: 366

Re: Problems starting processing

Excellent!

Still best to correct the EEPROM if you ever want to use it without our software, just run the eeprom commands again to reset it to realtek_oem, then write the Kerberos serial.
by rtlsdrblog
Wed Jan 15, 2020 5:44 am
Forum: Signal Identification Help
Topic: Very wide odd signal
Replies: 3
Views: 224

Re: Very wide odd signal

Yep i'd say probably DVB-T/2, for HDTV.
by rtlsdrblog
Wed Jan 15, 2020 5:42 am
Forum: Troubleshooting Help
Topic: Strong spurious signals - hardware or software issue?
Replies: 4
Views: 221

Re: Strong spurious signals - hardware or software issue?

We have an SDR# guide at www.rtl-sdr.com/SDRSHARP.

Is the device running in Quadrature Sampling mode? Quadrature sampling is correct the mode for upconverters.
by rtlsdrblog
Wed Jan 15, 2020 5:32 am
Forum: KerberosSDR
Topic: Direction of Arrival approximation for 2.4 GHz transmitters
Replies: 1
Views: 104

Re: Direction of Arrival approximation for 2.4 GHz transmitters

Yes it certainly could work at 2.4 GHz too, if the coherent hardware support was there for that frequency. Kerberos can only go up to ~1.7 GHz so that's a no go. It may be possible to use Kerberos at 2.4 GHz with a downconverter. As long as the 4x downcvonerter clocks are all shared with one another...
by rtlsdrblog
Wed Jan 15, 2020 5:24 am
Forum: KerberosSDR
Topic: Problems starting processing
Replies: 7
Views: 366

Re: Problems starting processing

Okay looks like the PID and VID of your device is mangled as it's showing idVendor=ffff, idProduct=ffff for some reason. Can you try and clone a fresh version of rtl-sdr-kerberos? I've just made a simple update that should allow you to access that device. Go through the standard make and sudo make i...
by rtlsdrblog
Tue Jan 14, 2020 3:24 am
Forum: KerberosSDR
Topic: Problems starting processing
Replies: 7
Views: 366

Re: Problems starting processing

If the exact commands were used, the only way to brick it that I can see would be to remove power or disconnect the unit while it was writing to the EEPROM.

If it's corrupt you should just be able to run rtl_eeprom again to rewrite it.

What does rtl_test show you?
by rtlsdrblog
Tue Jan 14, 2020 3:20 am
Forum: Other SDR Devices
Topic: Nooelec sdr dongle question please....
Replies: 1
Views: 119

Re: Nooelec sdr dongle question please....

Those with the always on bias tee can be used with any antenna that is not DC shorted. So the L-band patch and discone are fine. The L-band patch is powered, and the discone is a DC OPEN circuit antenna which is okay. But you must be extremely careful to not use an antenna like a QFH or Jpole etc, a...
by rtlsdrblog
Mon Jan 13, 2020 12:06 am
Forum: KerberosSDR
Topic: Problems starting processing
Replies: 7
Views: 366

Re: Problems starting processing

Can you give more info about what you did to mangle the EEPROM, and what the exact problem with the EEPROM is now? What does rtl_test show?

The code is not going to work without all 4 devices running.