gnuradio.org

wiki.spench.net

Template:RF - SpenchWiki

http://wiki.spench.net/wiki/Template:RF

32; ·. 32; ·. 32; VDL Mode 2. 32; Info page. Mode S) ·. 32; Demo video. FUNcube Dongle RTL2832U client ·. 32; USB drivers. 32; BorIP Server. 32; Fast Auto-correlation. 32; AM Scope. 32; Compilation under MinGW. 32; Block notes. 32; GNU Radio Patches. 32; Spectrum Recording. 32; Side-by-side GNU Radio Modules. 32; Random Number Generator with USRP. Ath5k RADAR PHY visualisation. Software Defined Radio Direction Finding. 32; HF with transverter. 32; Comparison to USRP. 32; ExtIO support. 32; Where are you?

wiki.spench.net

W-CDMA - SpenchWiki

http://wiki.spench.net/wiki/W-CDMA

Wideband Code Division Multiple Access) is used by the UMTS. Universal Mobile Telecommunications System). Common pilot channel (CPICH). Fixed-rate 30 Kbps, spreading factor (SF) 256. 14 slots in one radio frame. First 256 chips Tx OFF, then 18 data bits (20 bits/2560 chips in total). That deals with many technical aspects of the air interface. Calculated and displayed using the the Fast Auto-correlation. 3G UMTS at 2.1125GHz:. Telstra NextG at 842.5MHz:. 32; ·. 32; ·. 32; VDL Mode 2. 32; Info page. Softw...

wiki.spench.net

OFDM - SpenchWiki

http://wiki.spench.net/wiki/OFDM

Analysis in GNU Radio. OFDM Mod GRC block. Is greater than 8VSB (one reason why it wasn't adopted in the US). Ning Han, Sung Sohn, Jae Moung, "A Blind OFDM Detection and Identification Method Based on Cyclostationarity for Cognitive Radio Application". IEICE Transactions on Communications, Volume E92-B, Number 6, pp. 2235-2238, June 2009. Find sub-carrier spacing and duration of guard interval. And cyclostationarity of OFDM due to transmitter pulse-shaping filter. How the Cyclic Prefix works in OFDM.

wiki.spench.net

TETRA - SpenchWiki

http://wiki.spench.net/wiki/TETRA

Terrestrial Trunked Radio) is certainly out there, if you look for it. Even with simple AM demodulation, you can hear the characteristic 'buzz'. If you want to read some TETRA-related bunkum, check out TETRA Watch. At least that particular page has two nice pictures of the waveform and spectrum! 255 symbols (56.7ms). TETRA base station will always broadcast in each slot - if there is no information to transmit, slots are filled with the idle. GUI block is used above. 32; ·. 32; ·. 32; VDL Mode 2. Softwar...

op25.osmocom.org

OP25

http://op25.osmocom.org/trac/wiki.png/wiki

Last modified on 05/18/16 06:23:57. World's Cheapest P25 Receiver. Balint has done some excellent work to get the $20USD Realtek RTL2832 DVB-T stick working with GNURadio. Take a look at. To see him use the Realtek receiver together with OP25 to get the cheapest APCO P25 receiver (with DES-OFB support) you're ever likely to find. You should also check out the. Page for more info. Check out the new presentations page. We have added a new presentation page. Hardware scanners such as the Uniden BCD996T offe...

op25.osmocom.org

OP25

http://op25.osmocom.org/trac/wiki.png/wiki/WikiStart

Last modified on 05/18/16 06:23:57. World's Cheapest P25 Receiver. Balint has done some excellent work to get the $20USD Realtek RTL2832 DVB-T stick working with GNURadio. Take a look at. To see him use the Realtek receiver together with OP25 to get the cheapest APCO P25 receiver (with DES-OFB support) you're ever likely to find. You should also check out the. Page for more info. Check out the new presentations page. We have added a new presentation page. Hardware scanners such as the Uniden BCD996T offe...

op25.osmocom.org

SoftwarePage – OP25

http://op25.osmocom.org/trac/wiki.png/wiki/SoftwarePage

Last modified on 01/05/09 03:28:34. The demodulator and decoder program described below makes use of the. The most basic part of the software is the P25 receiver program. This takes a signal source as its input and produces audio and a stream of messages as its output. The message streams can be captured to file or forwarded either to the TAP device or to a file for later processing. Instructions for getting and building the source code are available here. A modified version of the.

sbrac.org

Shirleys Bay Radio Astronomy Consortium

http://www.sbrac.org/about_us.html

Moving Small-scale Radio Astronomy to a New Level. The Shirleys Bay Radio Astronomy Consortium operates as a dedicated group of volunteers working to restore the D.S. Kennedy Dish at the Shirleys Bay government research campus in the west end of Ottawa, Ontario, Canada. This 18M parabolic dish. Our group of volunteers includes engineers and scientists who hope to revive this asset, currently owned by the Canadian Space Agency. Our software platform is based on the gr-radio-astronomy. If you'd like to hel...

geekoutlabs.com

Geekout Labs | A Place Where You Can Just Geek Out! | Page 2

http://www.geekoutlabs.com/page/2

A Place Where You Can Just Geek Out! Skip to primary content. Skip to secondary content. Newer posts →. XBOX 360 Heatgun RROD Fix. May 5, 2013. I’ve been doing electronics for a long time and when a friend gave me a broke Xbox 360 with the RROD (Red Ring of Death), I jumped at the chance to try and fix it. DO NOT DO THIS! I will say this one more time, DO NOT DO THIS! April 1, 2013. I have been playing with basic sketches and they compile and run great. Overall, I am very happy with the product. All in a...

sharebrained.com

software-defined radio | ShareBrained Technology

http://www.sharebrained.com/tag/software-defined-radio

Tag Archives: software-defined radio. PortaPack: It Is Time. July 24, 2015. The PortaPack for HackRF One is now available! Visit the ShareBrained Store. To have a look at the features, current state of the firmware, and all the other things you should know before you buy. Let the PortaPack hacking begin! Random Stuff I Did. Tire Pressure Monitoring System (TPMS) Talk. January 31, 2015. Getting caught up… I gave a talk at ToorCon 2013. On my exploration of the Tire Pressure Monitoring System. The PortaPac...