LDighera: Added external link to SDR-Radio Console program that promises to be a new way forward for SDR software.

2013-08-20T03:17:16Z

Added external link to SDR-Radio Console program that promises to be a new way forward for SDR software.

← Older revision		Revision as of 20:17, 19 August 2013
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	* [http://sdr.osmocom.org/trac/wiki/rtl-sdr rtl-sdr] at the osmocom wiki		* [http://sdr.osmocom.org/trac/wiki/rtl-sdr rtl-sdr] at the osmocom wiki
	* [http://wiki.spench.net/wiki/USRP_Interfaces Balint Seeber's wiki] with instructions and downloadable installer for getting HDSDR working with an RTL2832 device under Windows		* [http://wiki.spench.net/wiki/USRP_Interfaces Balint Seeber's wiki] with instructions and downloadable installer for getting HDSDR working with an RTL2832 device under Windows
			* [http://v2.sdr-radio.com/ SDR-RADIO.com] MS Windows console for SDR receivers and transceivers. By: Simon Brown (HB9DRV)

	[[Category:Software-defined radio]]		[[Category:Software-defined radio]]

Malvineous: Add basic information about this device

2012-04-28T07:38:04Z

Add basic information about this device

New page

The '''RTL2832''' is an IC produced by Realtek Corporation to demodulate DVB-T (digital TV) signals and send them to a host computer over the USB bus. It has an additional mode designed to allow reception of consumer FM radio, and this is achieved by capturing I/Q samples and forwarding them to the host computer for demodulation and playback.

This feature was discovered by a Linux kernel developer while writing a Linux driver for devices using this chip, and the discovery was quickly put to use by implementing drivers for SDR programs such as [[HDSDR]], turning these devices into cheap [[Software Defined Radio (SDR)]] receivers. As the devices have a wide tuning range (typically continuous from 64MHz to 1.7GHz) they are very flexible.

As so many devices have been produced based around this chip, it is difficult to reliably tell which devices are suitable for use with SDR. There is a community maintained list on Reddit documenting [http://www.reddit.com/r/RTLSDR/comments/s6ddo/rtlsdr_compatibility_list_v2_work_in_progress/ which devices are known to work].

== Capture bandwidth ==

The SDR mode of the chip is theoretically capable of capturing up to 3.2MHz of the RF spectrum at one time, however the largest sample rate successfully received without sample loss is 2.8MHz. This means any signal to be demodulated must fit within 2.8MHz of the RF spectrum. For comparison, a consumer FM radio signal has a bandwidth of around 120kHz, and a TV signal (with audio) is 6-8MHz.

== Frequency range ==

The '''RTL2832''' chip does not perform any RF tuning itself, so it must be paired with a suitable tuner chip to enable signal reception. At the time of writing, the available USB devices use one of the following tuner chips:

{|class="wikitable"
!rowspan=2| Tuner !!colspan=2| Advertised frequency !!colspan=2| Actual frequency
|-
! Min !! Max !! Min !! Max
|-
| Elonics E4000 || 64MHz || 1700MHz || ~30MHz || ~2100MHz
|-
| FC0012 || ? || ? || 30MHz || 945MHz
|-
| FC0013 || ? || ? || ? || ?
|-
| FC2580 || ? || ? || ? || ?
|}

As the tuner chip dictates the frequencies available for reception, the Elonics chip is typically favoured as it has the greatest frequency range.

== External links ==

* [http://sdr.osmocom.org/trac/wiki/rtl-sdr rtl-sdr] at the osmocom wiki
* [http://wiki.spench.net/wiki/USRP_Interfaces Balint Seeber's wiki] with instructions and downloadable installer for getting HDSDR working with an RTL2832 device under Windows

[[Category:Software-defined radio]]

RTL2832 - Revision history

LDighera: Added external link to SDR-Radio Console program that promises to be a new way forward for SDR software.

Malvineous: Add basic information about this device