TORONTO CANADA Amateur Radio Jamming

TORONTO CANADA 🇨🇦 Amateur Radio Jamming

DMR Net CANADA 🇨🇦  Terminated ( abuse 2018 - 2020 )

https://dmrnet.blogspot.com/

READ all of Toronto’s abuse HERE:

http://torontorepeaters.blogspot.com/

Listen to Audio PROOF ::

🇨🇦 AUDIO of :: William Marquis VE3KUU aka former VA3HBO of SCARBOROUGH -Toronto 

Toronto CANADA HAM Amateur Radio Jamming :   I Gotta Put Andres ID In My Radio
Toronto CANADA HAM Amateur Radio Jamming :   I Set The Beam Up To Jam DMR
Toronto CANADA HAM Amateur Radio Jamming :   I Wont Jam Any More On The DMR
Toronto CANADA HAM Amateur Radio Jamming :   There Will Be Noo Canada-Wide Sunday Night Nets

Search CANADIAN callsign 🇨🇦

www.bit.ly/callsigncan

KrakenSDR

KrakenSDR

A phase-coherent software-defined radio with five RTL-SDRs

Radio Direction Finding (RDF) refers to any technique used to determine the directional bearing toward an RF transmitter.

The simplest method is to use an antenna that only receives signals from the direction in which it is pointed, then manually sweeping through 360 degrees to identify the bearing angle that receives the strongest signal. You could then do this from multiple locations and make note of where your bearings intersect. Unfortunately, this "simple" method requires a tuned directional antenna and a manual, error-prone process.

https://youtube.com/playlist?list=PLfQ4WXRWu3hcAauljjL1Tkc-vqimuAy_Q

KrakenSDR videos

KrakenSDR

videos @ Youtube 

www.youtube.com/@VE3WZW

Radio Direction Finding (RDF) refers to any technique used to determine the directional bearing toward an RF transmitter.

The simplest method is to use an antenna that only receives signals from the direction in which it is pointed, then manually sweeping through 360 degrees to identify the bearing angle that receives the strongest signal. You could then do this from multiple locations and make note of where your bearings intersect. Unfortunately, this "simple" method requires a tuned directional antenna and a manual, error-prone process.

Multipath

Multipath is the arrival of a transmitted signal at a receive antenna from multiple paths due to reflections. The reflections can occur from the ground, trees, buildings, people, or whatever is around. As an example, see Figure 1. The dominant signal is often the Line of Sight (LOS) signal, which is the direct path from the receiver to the transmitter. The other arriving signals (due to reflections) are known as multipath. In some situations (particularly in urban environments), there is no line of sight signal, and all received rays are from multipath. Multipath causes significant variation in received signal - sometimes the multipath reinforces the received signal, but often it subtracts from it (a phenomenon known as fading). See also diversity reception.

Transmitter Hunting Basics

A look at Transmitter Hunting as if done like an old Newsreel.

ARDF (Fox Hunting)

ARDF (Fox Hunting)

Update ::
We now have a GITHUB collaborative group
https://github.com/HAMradioCanada/RDF-Drone/issues

Doppler Systems Mobile Kit

Doppler Systems Mobile Kit

mobile kit includes antennas for the bands to be covered, the mobile summer, the GPS receiver, the compass (optional), and all the cables necessary to setup and operate a mobile direction finder. All of the equipment is packaged in a foam lined Pelican case. Power cables are provided with cigar lighter plugs. All antenna elements and cables are carried in a custom Mighty Pouch accessory bag. If the processor suite contains a data radio the data radio antenna is also housed in the Pelican case. The figures below show typical a equipment complement. The mobile kit is available in a single, dual, or three-band antenna kit covering 100 MHz - 1000 MHz.
http://www.dopsys.com/products/suites/MobileKit.html

Mobile 100 - 500 MHz AOR SR2200 14 ft none none

To be ordered.

Radio Frequency Direction Finder

Radio Frequency Direction Finder


http://youtu.be/ZUqzdrB1o2U

DSP-RDF Doppler Radio Direction Finder Kit

DSP-RDF Doppler Radio Direction Finder Kit


This kit is based upon the N0GSG DSP Doppler featured in the November 2002 QST Magazine. Doppler RDF units determine the bearing to a signal's source by electronically rotating four antennas, arranged in a circular pattern, at a high rate of speed. The signals received at each antenna are combined and passed on to your FM receiver which is tuned to the frequency of interest. The FM receiver detects the incoming signal and produces an audio tone which is then passed back to the Doppler unit. Inside the Doppler unit are two microprocessors which control the antenna switching and process the audio tone, from the receiver, using DSP techniques. The result of this processing determines the relative direction to the signal source. The direction is displayed continuously in real-time on a circular array of 16 LEDs, each representing 22-1/2 degrees of angle. In the case of intermittent signals the microprocessors save and display the last directional information (shown as a flashing bearing indicator) until the signal is again active. Active signals are displayed as a steady directional indication. The DSP-RDF Doppler kit being offered by W6DFW incorporates another feature not in the original design. This feature allows direction finding of a jamming signal even when the jammer is broadcasting a tone intended to interfere with Doppler units.

SHTF Intro To Radio Direction Finder "Seek & Destroy"

SHTF Intro To Radio Direction Finder "Seek & Destroy"

Real life radio direction finding. Taking this teachable moment to demonstrate various gear & techniques in radio direction finding. Not a gear review, but a concept video of the subject.

Radio Direction Finding Networks

Radio Direction Finding Networks


Pacificon 2012 Presentation given by Marcel Stieber, AI6MS, Graduate Student at California Polytechnic State University.

PA3BNX Super Simple Sound Doppler Finder

PA3BNX Super Simple Sound Doppler Finder

PA3BNX Super Simple Sound Doppler Finder. Homebuild VHF/UHF DSP Direction Finder connected to the soundcard off the PC. Easy to connect to line input of ...

www.pi4wag.nl/projecten/doppler-peiler-radio-direction-finder

https://verbed.home.xs4all.nl/hamspace/pa3bnx/sounddoppler/Flyer%20Doppler-UK2.pdf

Software for radio direction finding equipment

Software for radio direction finding equipment.
https://github.com/KN6FW/AHHADoppler

Free RDF software

Free RDF software

Super Simple Sound Doppler

Lodewijk, pa3bnx developed very nice software for this. It can plot the bearing directly on a electronic map if you want, and with GPS data it can plot and refresh your own location on the map as well. At december 31st 2013 I spoke to Lodewijk and explained my new idea to add a elevation indicator to the RDF, based on the reduced doppler amplitude on signals with higher elevations. I was waiting for a LED driver IC to build this addition.