A few nice Ham Radio images I found:
Back at camp using the ham radio
Image by AA7JC
Posts
G0SEC Ham Radio Shack tour & using the icom 2820 on Dstar Part 1
in part 2 you can see me having a few qso’s on Dstar using the icom 2820.
Video Rating: 5 / 5
Sometimes people ask me how to use aprs.fi with D-Star. This might not be exactly what they were asking for, but here is a video displaying the new beta version of aprs.fi running over D-Star on 1298.125 MHz (128 Kbit/s DD mode, Icom ID-1). Works like a charm!
Quite naturally I am using IP addresses from the amateur radio AMPRnet range (44.x.y.z) for the radio link. The web site is loaded over the 1.2 GHz radio link, both ends use Icom ID-1 radios which act as an Ethernet bridge. The laptop is directly connected to the ID-1 using the shown Ethernet plug (and wifi is disabled, of course).
This video was shot at the OH2K club station in Kauniainen (www.krk.fi), sound track courtesy of OH2GEK working HF a few feet to the right.
A brief demo of a software defined radio (SDR) using an absurdly cheap rtl2832 DVB-T usb dongle.
Video Rating: 5 / 5
http://www.meetup.com/Cyberspectrum/events/219319947/
#cyberspectrum on Freenode
https://twitter.com/spenchdotnet
Video Rating: 5 / 5
This short video shows a very simple way to hook up an oscilloscope to use it as an RF Signal Monitor to observe the RF envelope from your ham radio transmit…
Video Rating: 5 / 5
Passive radar done using rtlsdr (rtl2832) dongles using one dongle sharing the 28.8 MHz dongle to the other dongle. The dots moving around are airplanes flyi…
This video demostrates the capabilities of the KX3 Software Defined Radio (SDR) along with the HDSDR Software by DG0JBJ. The radio frequency is controlled by…
Video Rating: 5 / 5
A short demo video showing reception of wide band broadcast FM using Gqrx SDR and comparing the Funcube Dongle (96 ksps) with an RTL2832U-based DVB-T dongle …
A easy and cheap way to track Air Trafic.
Video Rating: 4 / 5
CQ has announced that it will no longer accept logs for any CQ-sponsored contest from stations in Crimea operating with Russian-issued call signs. CQ Magazine said that “after considerable deliberation,” it has decided to follow the lead of the US government and the United Nations and will consider the embattled Crimea region to be a part of Ukraine, “until such time as the political situation …
American Radio Relay League | Ham Radio Association and Resources
Digital Down Converter Filter for Software Defined Radio Receiver: Optimization of Equiripple FIR filter using MATLAB, System Generator, ModelSim, Synplify Pro, ISE Software and FPGA
The power consumption in a communication system depends on the technology of the processor and the number of processing stages in decimation part. Programmability in the decimation filter, allows it to adapt to the different channel bandwidths, interferers requirements of the different standards, while maintained the power consumption at a minimum. The appearance of various standards in communication technologies in the world requires a good technique that able to provide a compatible standard r
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The online industry publication SatelliteToday reports that the UKube-1 CubeSat is “experiencing an anomaly with its primary communications link.” To work around the problem, the United Kingdom Space Agency (USKA) has commanded the small spacecraft to use an alternate configuration of what it called “the FUNcube-2 transceiver,” using it as the satellite’s temporary downlink. The Amateur Radio t…
American Radio Relay League | Ham Radio Association and Resources
Demonstration of audio processing with the Teensy 3.1 microcontroller board and audio shield to implement a Software Defined Radio. RF front end is a SoftRoc…
Video Rating: 5 / 5
Aussie Military using HF shortwave radio to communicate with RAAF aircraft.
This movie shows how to use a private channels in application Personal Mobile Radio. The app is available by Google Play: https://play.google.com/store/apps/…
Part # 2 – – These 9 videos show how my son and I used a potato canon to put a rope through a tree, so that I could hang one end of my Double Bazooka (80 Met…
G0SEC, Ham Radio Shack tour & using Dstar on icom 2820 Part 2.
via YouTube Capture.
Video Rating: 3 / 5
All videos will be at: http://www.irongeek.com/i.php?page=videos/hack3rcon4/mainlist.
Video Rating: 4 / 5
The idea came from a QST article, Jan. 2013. Using an European TV dongle to receive VHF – UHF and an UP Converter to receive Zero to 30 mHz. Parts came from …
Video Rating: 5 / 5
Here is short video how to download satellite pictures of earth for under 50$ . Software links: SDR Sharp: http://sdrsharp.com/downloads/sdr-install.zip (Tune…
Video Rating: 4 / 5
On air example of the IC-7200 built in filters cleaning up SSB signal in strong static crashes. This QSO is between two brothers John, W5CYF, and Wil, AI4QT.
Video Rating: 5 / 5
We’re going to guess that most D-STAR users only use voice. Low speed data is part of every transmission, but it requires a computer (or maybe a smart phone)…
Video Rating: 5 / 5
Adobe has restored access to downloaded issues of digital QST using the latest Adobe® AIR™ ver 3.8 on Windows operating systems. To download the latest Adobe® AIR™ version, visit the Adobe Air web page.
American Radio Relay League | Ham Radio Association and Resources
Frequency Division Multiplex Digital Voice is a Digital Voice narrow mode. The codec uses only 1300 hz (1,3 KHz) Bandwidth for voice and digital data (texts)…
Video Rating: 4 / 5
GovDelivery’s Digital Communication Management Solution (DCM) helps you reach more people, streamline your communications and meet the mission critical objec…
Video Rating: 0 / 5
ARRL digital publishing partner, Nxtbook Media, is in contact with Adobe to regain access to downloaded issues of digital QST using the latest Adobe® AIR™ version 3.8 on Windows operating systems.
Instructions to uninstall Adobe® AIR™ 3.8 and re-install version 3.7 can be found on the “Save to Desktop” page through digital QST:
If you are prompted to upgrade Adobe® AIR™ to Version 3.8, refuse t…
American Radio Relay League | Ham Radio Association and Resources
Check out this free and very useful IM chat tool for the Icom D-STAR system. Basic, non-internet dependent software helps in emergency communications. See it…
Video Rating: 4 / 5
Clip6.
L-Network Antenna Tuner homemade.
Video Rating: 0 / 5
psk31 qso with UT3WW (Ukraine) using 1 watt on 17 meters Rig is the FT857D and antenna is a G5RV up about 20 feet above the roof here.
Video Rating: 0 / 5
PSK31 QSO to UN8FE @ 14.070 MHz.
Live video of part of a QSO on 40m using just 10 Watts at each end 100% copy over distances of c.1000Km is normal. First the complete GUI with the Multi QSO …
Procedura di regolazione livelli audio per emissione in Psk31 e successiva verifica su Perseus del livello IMD di terz’ordine.
Video Rating: 0 / 5
I am still fascinated whenever using low radio wattage to make contacts. This video shows a radio contact between Alabama and Virginia using 5 watts from a Yaesu 817ND from Ditto Landing in Huntsville, AL on September 10, 2009. Antenna used was a Comet RS 730 on the side-door of my 2001 Sonoma pickup.
Video Rating: 5 / 5
Seems like Ham Radio is making a huge resurgence since all the scientific and religious apocalyptic predictions keep gaining strength and awareness.
Video Rating: 4 / 5
I just got PSK31 working with my radio, and made a very inexpensive “interface” if you can even call it that. I worked a couple stations tonight, and this is a video of the one I managed to get recorded on air. Made contact with VE6VIS. Disclaimer, this is probably one of the more boring, and long videos I’ve made.
Video Rating: 0 / 5
HM QRP SSB TRX for 80m band, Rybakov antenna, fldigi software.
Video Rating: 4 / 5
This is version 2 of my demo for an arduino antenna tuner. In this version I swapped the coil with a new, somewhat larger one, which has an extra connection about halfway. Using a relay (controlled by the Arduino) the inductance can be switched between half and full. In each position, the capacitor makes a full sweep, while the Arduino monitors the reflection (watch the right meter in the back!). After this, it puts the inductor and capacitor in the position with the lowest SWR. This demo is quite slow, I experimented with different speeds and was able to let it tune within 2 seconds! Details, pictures, schema and code: ernest.utreg.net
This video describes how to use CAMtastic to find PCB net antennas in Altium Designer’s PCB editor.
Working w/ the 1213 kit to get it to work w/ the Ten-Tec Jupiter
Video Rating: 5 / 5
Ok, this is just a concept, I just wanted to show how the Arduino could be useful for radio amateurs. The SWR meter (in the back) is hooked up to the Arduino, also a servo is attached which drives a capacitor. This capacitor forms a simple L-tuner, together with an inductor which you can’t see on this video. The Arduino does a full sweep on the capacitor while measuring the SWR. It stores the position with the lowest SWR and after the sweep it rotates the capacitor to that position. Mind the SWR meter (right needle) while the capacitor is rotating! Details, pictures, schema and code: ernest.utreg.net
www.hamradiofinds.com Here is a video showing the JW MIller AT-2500 HF Ham Radio Automatic Antenna Tuner..This tuner covers 80-10 meters & will handle 2Kw+ of power..It has one input & 5 outputs, including one long wire connection..It runs on 110VAC, but can be switched to run on 220VAC..The tank circuit is well constucted using heavy duty parts..This would make a great addition to any HF ham radio shack..Thanks for watching..73s, Mel, WA5UTK
Video Rating: 4 / 5