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HF Radio Thread Before the Internet, people communicated over long distances using radio. You may still listen to broadcast stations on your car radio. Car radios pick up MF - medium frequency AM stations and VHF (very high frequency) FM stations
AM stands for Amplitude Modulation. This was the first type of radio that could convey voice and music. It's how the signal is sent and not where in the spectrum it is being sent.
FM stands for Frequency Modulation. Again, this is the type of signal and not where it's being sent
FM stands for Frequency Modulation. Again, this is the type of signal and not where it's being sent
The AM broadcast band is in the medium-wave portion of the radio spectrum. It tends to follow the ground and does not reflect off of the ionosphere. A great deal of power is needed to send this type of signal.
The FM broadcast band is in the VHF part of the radio spectrum. It operates line-of-sight and requires very tall antennas at the transmitter site. Your receiver's antenna must 'see' the transmitter.
VHF goes THROUGH the ionosphere and out into space.
VHF goes THROUGH the ionosphere and out into space.
In between the MF and VHF is the HF - high frequency radio band. It is often referred to as the "Shortwave" radio band. HF signals bounce off of the ionosphere.
To picture the ionosphere, imagine that the earth is floating in the middle inside a snow-globe. Now imagine that the
To picture the ionosphere, imagine that the earth is floating in the middle inside a snow-globe. Now imagine that the
ionosphere is the glass globe itself. Now imagine you looking from the inside and seeing a mirror. This is what a radio signal sees with the ionosphere. So you send a radio wave out and it bounces back.
No satellites, no interwebs, no service providers - just God's handiwork.
No satellites, no interwebs, no service providers - just God's handiwork.
I and other amateur radio operators use this on a daily basis to talk to each-other all over the planet. I have a radio and a wire antenna between 2 trees and a power source. That's it. The guys/gals on the other end have the same.
No censors. No unfollowing.
No censors. No unfollowing.
Many countries operate broadcast stations in the same radio neighborhood. These stations transmit using AM. Most shortwave/world band radios are made for AM.
Amateur ("Ham") radio operators use a different system called SSB - single sideband. The reasons we use it are technical
Amateur ("Ham") radio operators use a different system called SSB - single sideband. The reasons we use it are technical
in nature, but the point is that if you want to listen to us, you need a receiver that has SSB capabilities.
Listening to HF radio is not like listening to a live stream from broadband. Signals drift in and out a bit and it takes some practice to listen and tune the radio.
Listening to HF radio is not like listening to a live stream from broadband. Signals drift in and out a bit and it takes some practice to listen and tune the radio.
To capture the signal, you will need to use some length of wire attached as the little whip antennas suck. It can be very thin wire since you're simply receiving.
Today, I listened to a fellow in Wisconsin and it was just like he was sitting in the study with me.
Today, I listened to a fellow in Wisconsin and it was just like he was sitting in the study with me.
Twitter will ban all of us. Parler and other apps will likely have their DNS destroyed thus making them invisible. We saw that with 8ch dot net in 2019. Hussein gave the DNS root zone to the UN in October 2016. So, we're all on borrowed time.
I submit that this may be the last line for communications. It's been used in just about every disaster movie I've seen. Most of us do Morse code just for fun these days and voice most of the time.
I've been raising this point since 2017. This will be my last thread on HF.
I've been raising this point since 2017. This will be my last thread on HF.
The day we're banned is not the day to not have a radio. Get one now and start listening. Better yet, contact your local radio club and get some help. http://Arrl.org is a resource.
You can buy a radio TODAY on Amazon. Not endorsements, but they look ok:
You can buy a radio TODAY on Amazon. Not endorsements, but they look ok:
A lot of hams are buying these radios. They are transmitter/receivers (transceivers). Anyone can own one and listen. Transmitting requires a license and some training. https://www.amazon.com/7300-02-Direct-Sampling-Shortwave/dp/B01C95F56M/
I've said we need a backup plan. Time's up.
