Listen to Martian wind blow across NASA’s InSight lander. The spacecraft’s seismometer and air pressure sensor picked up vibrations from 10-15 mph (16-24 kph) winds as they blew across Mars’ Elysium Planitia on Dec. 1, 2018.
The seismometer readings are in the range of human hearing, but are nearly all bass and difficult to hear on laptop speakers and mobile devices. We provide the original audio and a version pitched up by two octaves to make them audible on mobile devices. Playback is suggested on a sound system with a subwoofer or through headphones. Readings from the air pressure sensor have been sped up by a factor of 100 times to make them audible. For full-length uncompressed .wav files, visit NASA.gov/sounds
VHF
Yaesu FT-3DR C4FM/FM Dual Band Transceiver
Yaesu FT-3DR Yaesu FT-3DR 5W C4FM/FM 144/430MHz Dual Band Digital Transceiver Reservation The new FT3DR provides reliable 5W RF power output in compac... Read more
APRS, Baofeng , and Buying Used – Ham Radio Q&A
FCC Enforcement Advisory – Baofeng Update APRS Digipeaters and Wide1-1 path: 01:03 Buying Used Ham Radio Gear: 05:04 Update to the Illeg... Read more
Wouxun KG-UVD1P
Wouxun KG-UVD1P Description of Features 1. 1750 Hz Burst Tone 2. DTMF Encoding Function 3. Working Mode :vhf tx-uhf rx or uhf tx-vhf rx can be set fre... Read more
Yaesu FT-25R
Yaesu FT-25R The Yaesu FT-25R is a rugged, lightweight and compact VHF handheld transceiver that offers up to 5W of output power along with lower powe... Read more
Antenna
Resonant Antennas, HF Mobile, MFJ-1668 Screwdriver
HF Mobile Antenna Covers 80-6 Meters with 4 1/2 foot mobile or 10 foot fixed operation telescoping whip. Continuously adjustable loading coil is 36 in... Read more
AIM 4170D Antenna / Lab RF Analyzer
The AIM 4170D antenna analyzer measures the complex impedance (magnitude and phase) at each frequency of interest in the range of 0.1 to 180 MH... Read more
Center Loading the Wolf River Silver Bullet 1000
“Wold River Coils has a new accessory for Silver Bullet 500 & 1000 coils called the UAFI or You Asked For It kit. The UAFI is a pair of exte... Read more
Omni-Directional – Circularly (Mixed) Polarized Antenna for 144 MHz / VHF / 2 Meters.
Introduction and Background This is an experimental project that may lead to further development in the future, but even as presented below, it does w... Read more
THE COKE LOOP Antenna by PY1AHD
“The Coke Loop is a Small Magnetic Loop Antenna tuned by a trombone-style variable capacitor made with standard soda cans. In Brazil we... Read more
News
Approaches to Tackle Noise Problems Vary, Remedies Elusive
RF noise is a frequent discussion topic among radio amateurs. A proliferation of electronics has cluttered and complicated the noise environment; it’s... Read more
ARISS, NASA, and ESA Continue to Probe Amateur Radio Problems on ISS
Amateur Radio on the International Space Station (ARISS) International Chair Frank Bauer, KA3HDO, reports that the ARISS team has been working closely... Read more
Yaesu FT-DX10 HF Transceiver – Is it Right for You?
We take a look at one of the most recent HF transceivers to come onto the ham radio market. Could this be the new FT-101E that was one of the best sel... Read more
What is the Base Holding Up My Hexbeam?
William Noble asks about the base used to hold up my MFJ-1846 Hex Beam antenna. The actual base that allows for a fold-over mast was designed by frien... Read more
ARISS APRS Testing
ARISS APRS TestingThe ARISS team has been working very closely with NASA and ESA to identify potential ARISS radio anomaly causes and resolve the radi... Read more
App - Mobile
SmartSDR for iOS v3.9.12 Now Available
Marcus, DL8MRE announces that release of SmartSDR for iOS v3.9.12 is now available for download or update from the Apple App Store. SmartSDR is a full... Read more
SignalID – Automatic Radio Signal Identification for Android
There’s an incredible amount of radio signals. It’s impossible to know them all, let alone recognize them. So why not get help from Signal... Read more
EchoHam version v2.10 has been released
EchoHam allows Amateur Radio operators to use the Echolink network from their Mac. You must be a licensed Amateur Radio operator to use this software.... Read more
SatSat for IOS version 1.4.11 has been released
SatSat, by Fabrice Aneche is a satellite tracking software, for radio amateurs, scientists or hobbyists. It displays current and next passes for any s... Read more
GNU RADIO CODE FOR ANDROID NOW RELEASED
Supports the most recent version of GNU Radio (v3.8). Supports 32-bit and 64-bit ARM architectures (i.e., armeabi-v7a and arm64-v8a). Supports popular... Read more
