Search found 144 matches

by alanzfq
Thu Sep 24, 2020 7:21 am
Forum: RTL-SDR Discussion
Topic: rtlsdr.dll blog mod - how can I recognize from "standard"?
Replies: 6
Views: 582

Re: rtlsdr.dll blog mod - how can I recognize from "standard"?

My notes and a link to the Software https://sites.google.com/site/g4zfqradi ... i=1#Eeprom As noted anyone who uses this does it at their own risk!
And I do not know how it works with software other than HDSDR.
Alan
by alanzfq
Wed Sep 23, 2020 8:54 am
Forum: RTL-SDR Discussion
Topic: rtlsdr.dll blog mod - how can I recognize from "standard"?
Replies: 6
Views: 582

Re: rtlsdr.dll blog mod - how can I recognize from "standard"?

But this does not read the dongle.
Therefore any dongle would show "Blog"?
It was possible to edit the dongle's EEPROM then some SDR software's DLL would read that unique Product/Serial number.
Alan
by alanzfq
Wed Sep 23, 2020 8:45 am
Forum: RTL-SDR Discussion
Topic: SDR# crashes on startup
Replies: 4
Views: 318

Re: SDR# crashes on startup

And look at the Airspy group, lots of changes/updates/fixes
Alan
by alanzfq
Wed Sep 23, 2020 8:09 am
Forum: RTL-SDR Discussion
Topic: Tracking of falconry telemetry (GPS)
Replies: 1
Views: 104

Re: Tracking of falconry telemetry (GPS)

Falconry sounds specialised, look for information there.
Speaking generally there are many systems used for birds, most store data and transmit occasionally. Some send phone signals.
Decoding, again specialised..

Alan
by alanzfq
Sat Sep 12, 2020 7:17 am
Forum: RTL-SDR Discussion
Topic: Making my own rtl-sdr
Replies: 3
Views: 838

Re: Making my own rtl-sdr

The original page https://ggtoshi.at.webry.info/201406/article_6.html says there is an EEPROM connected to the RTL, I guess it needs programming.
I do not think that making SDRs is "simply" PCB design, surely firmware in a micro is required to control it? Most have arrangements for updating.
Alan
by alanzfq
Sat Sep 12, 2020 7:04 am
Forum: RTL-SDR Discussion
Topic: Bought "RTL-SDR V3 Pro" but received a V2 with a PCB glued to the back of it. Need some help with hacking in a Bias-T
Replies: 2
Views: 525

Re: Bought "RTL-SDR V3 Pro" but received a V2 with a PCB glued to the back of it. Need some help with hacking in a Bias-

An examination of the input might show the existence of a Bias T switch.
If there is not one I'd use an external board available on Ebay etc.
Alan
by alanzfq
Sat Aug 29, 2020 11:33 am
Forum: RTL-SDR Discussion
Topic: hard wiring V3 Bias Tee (for Android use)
Replies: 2
Views: 333

Re: hard wiring V3 Bias Tee (for Android use)

I'd be inclined to use an external BiasT board as available on Ebay or the like.
Alan
by alanzfq
Mon Aug 24, 2020 6:55 am
Forum: RTL-SDR Discussion
Topic: Can any RF chip be modded to turn into an sdr or only R820T?
Replies: 6
Views: 723

Re: Can any RF chip be modded to turn into an sdr or only R820T?

An ADC will accept radio signals but limited by it's sample rate. You use a tuner (converter) to extend it's range.
I know nothing about WiFi modules and have seen nothing about modifying them.
Alan
by alanzfq
Sun Aug 23, 2020 10:28 am
Forum: RTL-SDR Discussion
Topic: Can any RF chip be modded to turn into an sdr or only R820T?
Replies: 6
Views: 723

Re: Can any RF chip be modded to turn into an sdr or only R820T?

The R820 is not a SDR chip it is in fact nothing to do with SDR simply a tuner.
The SDR chips are analogue to digital converters, the RTL chip in RTL dongles is an ADC, could have any tuner chip in front of it, or none at all. If you really feel like modding it go ahead.
Alan
by alanzfq
Mon Aug 17, 2020 11:34 am
Forum: RTL-SDR Discussion
Topic: Frequency Range
Replies: 2
Views: 546

Re: Frequency Range

A quick search (why didn't you do it?) says they are normal RTL SDRs. No extras.
Alan