Alternatives to RTL-SDR?

Email
Comment *
File	Select/drop/paste files here
Password	(Randomized for file and post deletion; you may also set your own.)
* = required field	[▶ Show post options & limits] Confused? See the FAQ.

Comment *

File

Select/drop/paste files here

Password

(Randomized for file and post deletion; you may also set your own.)

* = required field

[▶ Show post options & limits]
Confused? See the FAQ.

Flag
Oekaki	Show oekaki applet (replaces files and can be used instead)
Options	Do not bump (you can also write sage in the email field) Spoiler images (this replaces the thumbnails of your images with question marks)
Allowed file types:jpg, jpeg, gif, png, webm, mp4, pdf Max filesize is 16 MB. Max image dimensions are 15000 x 15000. You may upload 3 per post.

Flag

Oekaki

Show oekaki applet
(replaces files and can be used instead)

Options

Do not bump
(you can also write sage in the email field)

Spoiler images
(this replaces the thumbnails of your images with question marks)

Allowed file types:jpg, jpeg, gif, png, webm, mp4, pdf
Max filesize is 16 MB.
Max image dimensions are 15000 x 15000.
You may upload 3 per post.

[–]

▶Alternatives to RTL-SDR? Anonymous 04/10/19 (Wed) 22:37:43 No.1051021 [Watch Thread][Show All Posts]

>The maximum sample rate is 3.2 MS/s (mega samples per second). However, the RTL-SDR is unstable at this rate and may drop samples

Compared to digital oscilloscopes, 3.2 is a piss poor rate. You can get an 8 bit 250MS/s on ebay for less than 200 dollars. Heck, even a 30fps 4k camera has to process much more data than that. 3840*2160*30 yields us a whooping 248 MS/s at 8 bits. If there was a way to harvest that ADC for general usage then it'd be great. Maybe we can buy the ADC chips themselves and connect it to a cheap FPGA or microcontroller and then a PC? Any idea what would be a cheap, easy to use and fast ADC?

▶Anonymous 04/11/19 (Thu) 09:32:36 No.1051128

https://greatscottgadgets.com/hackrf/one/

These seem to be used by many tech security researchers.

Claims 8-bit 20 MS/s and 1 MHz to 6 GHz operating frequency for around $300.

>You can get an 8 bit 250MS/s on ebay for less than 200 dollars.

Are you talking about a SDR here or a scope?

▶Anonymous 04/11/19 (Thu) 12:55:27 No.1051155

File (hide): 150b5bbf17e232d⋯.jpeg (33 KB, 359x500, 359:500, black_magic.jpeg) (h) (u)

>Any idea what would be a cheap, easy to use and fast ADC?

>cheap

>easy to use

>fast ADC

Pick one.

Do you realize that at 250 MS/s that means you need at minimum interface capable of transmitting 250 MB/s? You would need at least USB 3.0 or 10 Gbit ethernet link, pros use PCI Express. You would also need enough RAM or SSD that can write fast enough. Cameras and scopes achieve this by utilizing parallel interfaces + on-board fast memory and in camera's case an ASIC for compression. Nothing about this is simple or cheap. Your fifth harmonic of clock signal at those data speeds would be about 10 GHz. You're now dealing with advanced black magic.

/tech/ - Technology★

General

WebM

Theme

User JS

Do not paste code here unless you absolutely trust the source or have read it yourself!

Favorites

Customize Formatting

Filters