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Keyword: hamradio

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  • Communicating in an Insurrection: Amateur Radio and You – A GUEST POST BY Nathan Brindle, KC9YTJ

    01/13/2021 10:38:42 AM PST · by tbw2 · 44 replies
    According to Hoyt ^ | January 13, 2021 | Nathan Brindle, KC9YTJ
    What’s the point of bothering, and spending all that money, if everything goes to hell in a handbasket? Well, for one thing, we’re not in the handbasket yet. And becoming a part of the local amateur community is a good thing – you’ll create friendships and alliances, learn more about the hobby from those who have been there and done that, and even be able to assist your community if the shit really hits the fan in a non-political sense.
  • Vanity: Looking for HAM radio recceiver

    01/09/2021 3:36:38 AM PST · by john316 · 56 replies
    Me
    Looking for recommendations for means to listen to HAM radio. Just like on FR I just want to lurk. Also thought it may not be a bad idea to have small receiver setup as most internet com s will be comprised soon.
  • VANITY: Recommendation for Ham Radio starter kit

    01/10/2021 5:35:47 AM PST · by OKSooner · 81 replies
    Vanity ^ | 1-10-2021 | Vanity
    This topic has come up at least a couple of times in the last few weeks; I'd like to bring it up once more for one's own selfish needs. One is interested in a starter Ham radio kit that for now will be used as a receiver only at home. Later, one might wish to get the FCC license and acquire the means to transmit also but for now the interest is in a receiver with the following specs: Reasonably portable, battery power capability would be nice. Scans available radio bands for traffic if possible. Made by a reputable manufacturer...
  • Ham radio Qs

    01/08/2021 6:19:59 PM PST · by Trot · 99 replies
    vanity ^ | 10821 | trot
    Q about ham radio
  • Any Ham Radio Enthusiasts Here on Free Republic?

    01/05/2021 11:16:13 AM PST · by Red Badger · 159 replies
    Red Badger | Jan. 5, 2021 | Red Badger
    Need to find some amateur radio experts for FReeper, Magnum44. We used to have a Ham Radio Ping List run bet Denver DitDat, but he hasn't been on since 2006...................
  • Tuning an R820T2 RTL-SDR up to 6 GHz via a Harmonic Mixing Driver Hack

    01/05/2021 8:12:07 AM PST · by tbw2 · 24 replies
    RTL SDR ^ | 12/17/2020 | RTL-SDR.com
    A while back we heard a suggestion that it may be possible to use the 5th harmonic on R820T2 RTL-SDRs to receive frequencies much higher than the normal 1.766 GHz limit. After mentioning this to to Hayati Augen he has recently managed to implement this driver hack, and now R820T2 based RTL-SDRs can tune all the way up to 6 GHz if Hayati's experimental driver branch is used. Before everyone gets too excited, we need to temper expectations as sensitivity reduces the higher the frequency so an LNA may be required, imaging/aliasing is a major problem, and you will absolutely...
  • January 6 DC rally. Any ham operators?

    01/04/2021 3:27:27 AM PST · by vanilla swirl · 61 replies
    Me
    I assume many are going to DC rally on January 6. Even with no funny business cell phone service will be difficult if not impossible. Any ham radio operators going? Suggestions for frequencies, etc?
  • 3.4 GHz Ham Radio test with WA5VJB Log Periodic Feed

    01/03/2021 1:04:26 PM PST · by tbw2 · 31 replies
    Ham Radio DX Channel ^ | Aug 27, 2019 | Ham Radio DX Channel
    I received a log periodic antenna designed by ham radio operator WA5VJB from Kent Electronics. They are rated from 2 to 11 GHz, so this model will cover several of the ham bands. These antennas are made on PCB's and are ideal for use in the amateur microwave bands as compromise dish feeds. In this video I do a test of such a feed versus my patch antenna on the 3.4 GHz band. https://www.wa5vjb.com/products1.html I mounted one in place of the original dipole feed on a 2.4 GHz (13cm) gridpack at the same focal point. Whilst gain will be down...
  • Earthlings and astronauts chat away, via ham radio

    12/24/2020 6:31:30 AM PST · by BenLurkin · 16 replies
    phys.org ^ | December 23, 2020 | by Samantha Masunaga
    NASA astronaut Doug Wheelock was just a few weeks into his six-month mission at the space station when feelings of isolation began to set in. Wheelock would be separated from loved ones, save for communication via an internet phone, email or social media. At times, the stress and tension of serving as the station's commander could be intense. One night, as he looked out a window at the Earth below, he remembered the space station's ham radio. He figured he'd turn it on—see if anyone was listening. "Any station, any station, this is the International Space Station," Wheelock said. A...
  • BSides Canberra 2018: A low cost guide to satellite listening

    12/21/2020 7:27:40 PM PST · by tbw2 · 43 replies
    Slideshare ^ | April, 2018 | Pamela O'Shea
    So many satellites are moving and sitting over our heads, and the numbers are ever increasing. Using low cost software defined radio (SDR) and low cost DIY antennas you can make from materials at your local hardware store or garage, a world of fun can be explored. This is a beginners guide on how to get up and running. Exploring which projects to tackle first, from weather satellites, data over Inmarsat and Iridium, to listening to amateur radio and cube satellites. Learn about some hardware you can make or scout for online and use at home. A quick tour of...
  • Assembling A Low Cost EMI Troubleshooting Kit – Part 1

    12/16/2020 9:34:12 AM PST · by tbw2 · 16 replies
    Interference Technology ^ | May 13, 2016 | Kenneth Wyatt
    Those of us who are either in-house or independent EMC consultants can benefit greatly by assembling our own EMI troubleshooting kit. I’ve depended on my own kit for several years and it has proven not only valuable, but depicts a sense of professionalism in dealing with your own product development engineers, their managers, or your clients, as the case may be. Mine is designed around a Pelican 1514 roller case (http://www.pelican.com) that includes a padded divider, so it is easy to transport to the area needed. You’ll also want to order the optional lid organizer, model 1519, for carrying extra...
  • Ham Radio Club, Gunsite Salute NRA Birthday

    11/01/2020 10:22:44 AM PST · by Varmint Al · 16 replies
    NRA Birthday Salute ^ | 11/1/2020 | Varmint Al
    Ham Radio Club, Gunsite Salute NRA Birthday The Yavapl Amateur Radio Club (YARC) of Prescott, Ariz., will operate a special event station Nov. 17, 2020, in celebration of the NRA's 149th birthday. The amateur radio station will operate from Gunsite Academy's 2000-acre campus north of Prescott. The call sign will be K7GST, an FCC-licensed amateur radio station. it will conduct operations on the following amateur frequencies from 0900 to 1800 MST: 7.040, 7/250, 14.040, 14.250 and 21.335 MHz. Due to availability issues the CW operation will only be 1300 to 1800 MSR. A unique NRA/Gunsite certificate (acknowledgment of communications)...
  • Open Source Amateur Radio Satellite and Microwave - October 2020 SBMS

    10/04/2020 3:02:23 PM PDT · by tbw2 · 21 replies
    Open Research Institute, Inc. ^ | 10/04/2020 | Michelle Thompson
    Open source RF hardware has been under development for several years, a boon for ham radio operators and academics. Open Research Institute anticipates that the Commerce Department will find that these technologies are unrestricted under the carve-out for open source in the EAR.
  • Free and cheap ham radio projects list by WA5VJB

    09/22/2020 7:09:20 AM PDT · by tbw2 · 20 replies
    WA5VJB.com ^ | n/a | Kent Britain
    Free and cheap ham radio projects list by WA5VJB
  • Ham / GMRS 400-1000mhz PC board antenna PCB LDPA

    09/09/2020 9:53:51 AM PDT · by tbw2 · 24 replies
    SurvivalComms Youtube Channel ^ | Jul 29, 2016 | SurvivalComms
    Short video describing an antenna etched on a printed circuit board. Antenna design is a log periodic dipole array that covers 400mhz - 1 ghz. Antenna is lightweight and packable and exhibits excellent real world performance for it's size and weight. Please check them out : http://www.wa5vjb.com/
  • DEFCON27 Wireless Village - Kent Britain - Antennas for Surveillance

    09/08/2020 8:11:01 PM PDT · by tbw2 · 3 replies
    Defcon 2019 ^ | Defcon 2019
    Care and feeding of Software Defined Radios (used in surveillance) We will cover the various kinds of antennas available to optimized your SDR radio for different types of spectrum monitoring. We will also explain why RF filters are necessary on most SDR's and when Low Noise Amplifiers help, and when Low Noise Amplifiers hurt reception.
  • Does Section 303N of the Communications Act of 1934 Mean the Feds Will Search Your Home Without a Warrant?

    08/27/2020 9:29:07 AM PDT · by tbw2 · 15 replies
    Hubpages ^ | January 8, 2018 | Tamara Wilhite
    Does Section 303(n) of the Communications Act of 1934 mean that the feds can search your home without a warrant if you have a ham radio license, slang for having an amateur radio license? Conspiracy theories have arisen that this Act is used to justify warrantless inspections of homes with wireless equipment, those accused of broadcasting without a license or even anyone’s home. What does the Act say, and what does the government actually do regarding its enforcement?
  • Students Use Ham Radio to Call an Astronaut in Space

    08/25/2020 12:30:27 PM PDT · by Shark24 · 30 replies
    You tube ^ | Aug 25 2020 | NASA Johnson
    On May 15, 2020, Canadian students used ham radio to talk with NASA astronaut Chris Cassidy, currently aboard the International Space Station. Thanks to ham radio operators and the International Space Station program, the students were able to participate from their homes. Learn more about ham radio aboard the space station.
  • Does Section 303N of the Communications Act of 1934 Mean the Feds Will Search Your Home Without a Warrant?

    08/19/2020 7:40:15 AM PDT · by tbw2 · 34 replies
    Hubpages ^ | January 8, 2018 | Tamara Wilhite
    Does Section 303(n) of the Communications Act of 1934 mean that the feds can search your home without a warrant if you have a ham radio license, slang for having an amateur radio license? Conspiracy theories have arisen that this Act is used to justify warrantless inspections of homes with wireless equipment, those accused of broadcasting without a license or even anyone’s home. What does the Act say, and what does the government actually do regarding its enforcement?
  • FR Hams...Shut In Net...

    03/20/2020 6:17:23 PM PDT · by abigkahuna · 25 replies
    vanity | 3.20.20 | abigkahuna
    Hello there fellow freepers! Thining about a net for us Kung Flu shut ins...Maybe 80m or 40m. Evenings might be best for all involved...what say anyone? N6TDG