Radio Operators Needed for Special Olympics Summer Games
1 day ago
by Bryan
in Radio Stuff
Amateur Radio Operators are needed for the Special Olympics Summer Games, June 8 and 9 at Cal State Long Beach. If you can help please contact Mark Lidikay, KE6TNM, at (MLidikay at holdenandrew dot com).
McMurdo Station: Ice, Pegasus & Williams Field
02 months ago
by Bryan
in Radio Stuff
| 2182 | SSB | INT’L DISTRESS |
| 4123 | SSB | INT’L DISTRESS |
| 5727.5 | SSB | MCMURDO CENTER |
| 9032 | SSB | MCMURDO CENTER |
| 11256 | SSB | MCMURDO CENTER |
| 118.2000 | AM | MCMURDO CENTER |
| 119.0000 | AM | ICE RWY 25 LGT |
| 126.2000 | AM | ICE & PEGASUS TOWER |
| 128.7000 | AM | PEGASUS FLD RWY 33 LGT |
| 129.7000 | AM | PEGASUS FLD RWY 26 LGT |
FCC Creates Toll Free Number To Report Cellphone and GPS Jamming
0(ARNewsline) The FCC wants your help in locating anyone who is using a cellular telephone or GPS jamming device and to do this the Commission’s Enforcement Bureau has launched a dedicated jammer tip line at 1-855-55-NOJAM or 1-855-556-6526. This, to make it easier for the public to report the use or sale of illegal cell phone, GPS or other signal jammers.
As has been said many times before, it is against the law to use, import, advertise, sell or ship a cellular telephone or GPS jammer or any other type of device that blocks, jams or interferes with authorized communications, whether on private or public property. As such, members of the public are being asked to call the FCC’s toll free Jammer Tip Line immediately if you are aware of the ongoing use of a cell, GPS, or other signal jammer. Also please call if an employer operates a jammer in a workplace; you observe a jammer in operation at a school or college; you observe an advertisement for a jammer at a local store or you observe a jammer being operated on your local bus, train or other mass transit system.
One warning. This number is only for use to report cellphone or GPS jamming devices. Please do not call it to report that your favorite repeater is being jammed or that your QSO on 20 meters is being interfered with. Those matters will not be handled on this telephone line and will be of no interest to those taking cellphone or GPS jamming device calls.
Once again, the number where to report the use of cellphone or GPS jamming is 1-855-55-NOJAM or 1-855-556-6526. And calling that number is toll free. (FCC)
Want Your Own Shuttle Xing Sign?
0
Traffic Management Inc. here in Newhall is the company behind the popular ‘Shuttle Xing’ signs seen along the shuttle procession route that took Endeavour from LAX to Exposition Park. The signs come in various sizes from 12″ X 12″ for $33 through 48″ X 48″ for $175. The signs can be purchased through the TMI website, the link is posted below.
QRP QSO With VK4SDD
07 months ago
by Bryan
in Radio Stuff
Sometimes you just can’t go by what the propagation numbers tell you. Last fall when we were seeing sunspot counts topping 200 and solar flux counts near 200 I just wasn’t able to contact Australia nor New Zealand though they were blasting into SoCal clear into the early evening hours. So imagine the shock I received Saturday afternoon as I’m sitting in the Kmart parking lot and I hear a VK4 station calling CQ, I answer his call and on the first attempt I get this…
Yes, that is a stock FT-817 I’m using, barely 5-Watts out. Antenna used was an ATX Walkabout mounted on the roof using a MFJ BNC magnetic mount. For power a fold-up 15W solar panel, 10A solar charger and a 9Ah Solid Lead Acid (SLA) battery. The entire system is completely portable and stores neatly in my backpack.
Monitoring The International Space Station
07 months ago
by Bryan
in Radio Stuff
The first set of frequencies belongs to the on-board amateur radio station. Voice contacts are primarily reserved for schools, however, if a crew member has some downtime they’re free to go on-air and make as many contacts as they want. As long as there isn’t any electrical problems the packet modem will also remain on and in ‘store and forward’ mode. Allowing personal messages to be sent to crew members and other hams around the world. The SSTV frequency is rarely used, mostly during special events such as Field Day.
145.8000 FM Region 2 Voice Downlink
144.4900 FM Region 2 Voice Uplink
145.8250 FM Packet | APRS
437.5500 FM Packet
145.8000 FM SSTV
The second set of frequencies are for commercial operations such as EVAs and the docking of resupply ships. On VHF-1 you will hear Cosmonauts communicating with one of several Mission Control Centers around the world. VHF-2 is said to be used by Astronauts though Russian comms have also been logged on this frequency. On 121.750 and 121.125 EVA ‘spacewalk’ activity has been noted with the callsign ‘Soyuz’ being heard on EVA-1. EVA-1 is commonly logged by radio operators in SoCal as its also used by ground crews at LAX. Do note the ISS operates on Moscow Time so you may find the crew more active late at night.
143.6250 FM VHF-1
130.1670 FM VHF-2
121.7500 FM EVA-1
121.1250 FM EVA-2
If you’re worried about needing a big set up to monitor the ISS don’t worry, its just like monitoring AO-27, SO-50 or any other FM satellite. All you’ll need is a scanner, general coverage communications receiver or a 2-meter radio with extended receive which pretty much all radios made now a days have. As for an antenna, you will want to use something with gain like the Diamond RH-77/SRH-77 or even a beam antenna like the Arrow Antenna or Elk Antenna. They are fairly low cost and extremely portable.
Defending Against Side-Channel Attacks – Part 2
03.1 Background
As smart mobile devices become ubiquitous, many applications requiring a high degree of security are being ported to the devices. Banking, mobile payments, stock trading, and digital rights management of downloaded content are all examples of applications requiring secure connections and the use of cryptographic keys. As the examples in this section show, however, many mobile devices currently in use do not contain side-channel protections. Hence, these devices are often extremely vulnerable to side-channel attacks, often from data collection occurring several yards away.
Spectrum Analyzer Hunts Down RF Interference
0
Using swept DPX digital phosphor technology, the SPECMON spectrum analyzer from Tektronix automatically scans its entire 3.0/6.2-GHz frequency range in real time to find transient interferers in the field.
