Category: Communications & Receivers

A Nuclear Attack Quick Actions Checklist – Part 2, by Anon-6

(Continued from Part 1. This concludes the article.) – To filter air: Need to get fresh air into the shelter without pulling in fallout particles In rack 1 is everything you need to set up an air filter system that pulls in filtered air Checklist with step-by-step pictures is on the clipboard Instructions are also written on the plywood board that will go in the opened movie room window slot (board already has 12” holes in it for the small yellow industrial fan to pull air into the movie room through one of the furnace filters) [Rack 1 contains a …


A Nuclear Attack Quick Actions Checklist – Part 1, by Anon-6

I’ve been a prepper since 2012 and was born in the early 60s. I started prepping when Obama was reelected and realized we’re on our own to protect our families from the hazards of a dangerous world. One of my first purchases was a 1-ounce silver Eagle that stays in my pocket to this day as part of my EDC kit – a small metal cigar case that works nicely (maybe a future article on that). From there, research and then purchasing food, water storage, comms, medical supplies, guns, and getting trained. Fast forward to late 2022 and early 2023. …


One Way to Get Started in Ham Radio, by Reltney McFee

Simply in case anyone was wondering, this is by no means “the” way to begin. Rather, this is a sort of discussion of how I got into Amateur (“Ham”) radio. In the late 1960s and early 1970s, I was attracted to CB radio, although, being a teen, my budget to act on that attraction was, well, scant. I had a CB walkie-talkie, and would chat with a friend similarly equipped, a couple of blocks away from me. Once I moved out of my parents’ home, I started working, for Da City’s EMS, and from time to time would note that …


A Local Disaster Network – Part 5, by J.M.

(Continued from Part 4. This concludes the article.) Cloud Dancing Next, we’ll set up the Nextcloud application. Assuming your laptop and Raspberry Pi are still connected to your GL.iNet router and it has Internet access, open up a web browser on your laptop and enter the following address: ‘http://nextcloud.local’ – depending on your operating system and browser you may get a warning that says the connection isn’t private – just click to proceed anyway (or click on ‘Advanced’ and then ‘Proceed’). The first screen that will pop up is the following:           You’ll notice that there …


A Local Disaster Network – Part 4, by J.M.

(Continued from Part 3.) Cloud Server Next, we’re going to set up the operating system and Nextcloud cloud application that runs on the Raspberry Pi server. You’ll need to download two or three pieces of software to accomplish this – a utility for loading the Raspberry Pi’s operating system image onto the microSD card, the actual Raspberry Pi operating system/application image file, and a tool for uncompressing the compressed operating system/application image file after downloading it (if you don’t already have something like WinZip or 7-Zip installed). For the Pi’s operating system/application we’re going to use an image called NextCloudPi …



A Local Disaster Network – Part 2, by J.M.

(Continued from Part 1.) There are two additional items required to run a Raspberry Pi – a microSD card for storage and a power supply. I’ve set up, configured and run dozens of Raspberry Pis since they came out in 2012, and 90% of all of the problems I’ve ever encountered with them are the result of either a bad microSD card or inadequate power supply, so you don’t want to cheap out on either. For the microSD card I strongly recommend using a SanDisk MAX ENDURANCE model of at least 64GB, but bigger is always better, so get a …


A Local Disaster Network – Part 1, by J.M.

There have been a number of articles on SurvivalBlog on the use of mobile devices like cell phones and tablets in survival/disaster scenarios (including one I wrote – ‘Tactical Technology for TEOTWAWKI’ parts 1, 2, 3, 4, 5, 6). In that article, I briefly introduced the idea of setting up and using a home server/network infrastructure for a disaster scenario, which can provide you with a lot of options for planning, organizing, coordinating, sharing, and communicating information among your team, family, group, or community. In this article, I’ll discuss one possible approach for configuring such an infrastructure for disaster situations. …


Long Term Storage of Household Batteries, by OhioGalt

Several years ago, I began purchasing Lithium Batteries in AA and AAA sizes for long-term storage in case of some event where batteries were not readily available. I was also using them in several trail cams around the property because they would last roughly 10-to-12 months before replacement. I recently went to buy another couple of 48-packs and found the price had significantly increased. The cellular cameras I use offer a rechargeable lithium pack and comparing to lithium AA I found I could pay for the rechargeable pack in less then two sets of AA lithium batteries. Unfortunately, you cannot …


A Low Power Communications Station in a Bucket – Part 5, by Tunnel Rabbit

(Continued from Part 4. This concludes the article.) RTL-SDR and SIGINT The photo at left shows a 2.GHz panel Yagi (a directional antenna) that was installed on a field expedient 30-foot wooden pole that is stabilized with guy wires. It is for use with a RTL-SDR dongle and a laptop to detect the signals controllng the movement of line of sight (LOS) drones that would emanate from the direction of the most likely avenue of approach. Its range of detection would be greatest when placed above the top of trees. In the world of radio, ‘Height is might’.) The link …


A Low Power Communications Station in a Bucket – Part 4, by Tunnel Rabbit

(Continued from Part 3.) Crossband Repeaters The Anytone AT5888uv, or the TYT TH-UV8000, a 10-watt handheld ($79) are examples of what I prefer in a open-banded transceiver with a crossband repeater. These use only one dual-band antenna, and are true two-way cross-band repeaters. For low-power operations, the TYT TH-UV8000 is the most practical. The Anytone AT5888 moblie with 50 watts of power, can do the same job and be a base station transceiver, yet it would draw more power, and when in use as a repeater, it can not be a base station transceiver. So, get both!


A Low Power Communications Station in a Bucket – Part 3, by Tunnel Rabbit

(Continued from Part 2.) Photovoltaic (PV) Power Power can be supplied by an internal or external source. For long-term fixed installation, a single wire pair can deliver power from a 12 to 24 vdc from a PV panel to a battery stored inside, or placed outside, or directly to the voltage step-down converter inside. A Baofeng battery eliminator can accept the higher voltage of a PV panel and step it down to 7.4 volts that the transceiver requires. However, there is no battery present to be charged and consumed after sunset, whereas with the voltage step down covert charges the …


A Low Power Communications Station in a Bucket – Part 2, by Tunnel Rabbit

(Continued from Part 1.) Transceiver Selection These are various sizes and types of radios. For the purpose of size comparison, the photo illustrates why we should choose the smaller-size transceivers that will allow one to pack as many as possible into the metal can that is housed inside the 6-gallon bucket. The metal can is needed for protection from EMP, and as an additional protection from the environment when stored inside, or outside the bucket.) The smallest in size is the tiny Anytone Smart which is a 10 Meter FM, and 16-watt PEP CB AM/FM that has 400 channelized frequencies …


A Low Power Communications Station in a Bucket – Part 1, by Tunnel Rabbit

Introduction This five-part article is about a low-power communications station that fits into a 6-gallon plastic bucket that can be operated in or out of a bucket, or perhaps two buckets. Included are tips to help maintain the station, and improve its effectiveness. Some can afford to buy better equipment, and some will also be interested in gathering Signals Intelligence (SIGINT). I believe that SIGINT will become essential in the future. This example was put together on a tight budget, so I can afford to make several communications stations, and still perform SIGINT and use digital modes. We should assemble …


Selecting Ham Shack Equipment, by Muscadine Hunter

When it comes to assembling equipment for a ham shack, there are about as many options as there are differing opinions about what one needs. Also, a ham shack for hobby and one for intel gathering post TEOTWAWKI is vastly different. With that said, allow me to share my experiences and background. I started fooling around with radios when I was about 10 years old. One of my dad’s best friends was an avid short-wave listener and introduced me to the hobby. I would sit in Hoyt’s den for hours listening to various overseas shortwave stations as well as occasional …