Normally 28.8 MHz TCXO’s are difficult to find, but Nobu was able to find a source in Japan, and he is now selling on his Amazon Store (with international shipping) modified dongles.
oscillator on the RTL-SDR is prone to thermal drift, which means that
as the dongle heats up from use, the frequency you are tuned to may
change over time. A TCXO compensates for differences in temperature, and
thus keeps the frequency stable as the temperature changes. This is
extremely useful for applications such as receiving GPS, Beacons,
APT, HFDL, and for radio astronomy.
a tool inspired by tentacle. It automates the task of sniffing GSM frames of the air, extracting the key exchange, feeding kraken with the key material and finally decode/decrypt the voice data. All You need is a USRP (or similar – [RTL-SDR]) to capture the GSM band and a kraken instance with the berlin tables (only about 2TB )
If you’re new to the world of low cost software defined radio, and have just been through our Quickstart guide, this YouTube tutorial video by Clayton Smith on using the SDR# program may be useful to you.
the video Clayton explains how to use SDR# and some of its many
features, how to calibrate the RTL-SDR offset in the software, and
he also shows how to receive a few interesting signals in his area.
has teamed up with Nooelec.com to give away RTL-SDR packages to 10
hams. To be eligible to enter the competition, you must be a registered
amateur radio operator, and you must comment on the competition page. The prizes are
Two (2) Complete HF sets including: NESDR Mini receiver Ham It Up upconverter SMA to MCX cable SMA to BNC adapter SMA to PL259 adapter SMA to F adapter
Two (2) Complete Touch SDR sets including: NESDR Nano receiver SDR Touch license (for Android tablets) USB OTG micro & mini cables
To use the app, you will need an Android device
that supports USB OTG, which most Android devices on Android 4.0+ should
support. You will also need a USB OTG cable, and an RTL-SDR dongle. You
may want to consider a USB OTG cable that has a second port for
external charging capabilities, as the RTL-SDR can drain the battery
The app is cheaply priced at under $2, so give it a try!
YouTube user Brad Bowers has posted a video showing GQRX running on his BeagleBone Black with an RTL-SDR dongle. The BeagleBone Black is an embedded Linux computer,
similar to the Raspberry Pi, but with significantly more processing
power. He found that GQRX actually performed quite responsively on
Oona discovered that the bus displays in her area use Data Radio Channel (DARC)
encoding. Once she discovered that no DARC decoders exist online, she
implemented the full five layer DARC protocol stack in Perl and was left
with data packets that had some human readable strings containing
information such as bus terminal stations. With some extra work she was
able to also get more information such as expected waiting times and bus
numbers as well.
Recently, the FUNcube-1 satellite was successfully launched. The FUNcube is a CubeSat
(a low cost miniature 10cm cube sized satellite) which is intended
mainly for educating young people about radio, space, physics and
electronics, but has also piqued the interest of amateur radio