Category: Communications & Receivers

Letter Re: U.S. Nickel Five Cent Piece Value Increasing

Hi Jim, Just a friendly reminder that the melt value of U.S. nickel [five cent piece]s are inching up in price again. Their metallic content made them worth 6.5 cents, the last time I checked. The impostor to the presidency recently signed the “Coin Adulteration, Debasement, and Value Theft Act of 2010” also known as “The Coin Modernization, Oversight, and Continuity Act of 2010“. This may be driving up the price of the currently circulating real nickels. Regards, – Randy F. JWR Replies: SurvivalBlog readers should consider the newly-enacted legislation their “last call” to acquire nickels by the roll or …


Two Letters Re: Force Multipliers for Retreat Groups

Sir, The recent Force Multipliers article was a good read, as was OSOM’s follow-up letter. Your comment about the Magic Cube flash cubes is a good one. I’m ashamed I didn’t think of that one myself. One of my concerns is the amount of electronic gear that seems to go into play in some of our TEOTWAWKI preparations. If you look at the logistics tail of the US Military you will find that a soldier uses his weight in batteries very quickly in the field. A big problem (as I understand it from my reading) is keeping our guys supplied …


Letter Re: Radio Communications and SIGINT

Jim, I’ve been a follower of your writings since you wrote your shareware novel “The Gray Nineties“. After seeing some recent postings on SurvivalBlog regarding communications, I decided to write you. I have been a licensed Amateur Radio Operator since 1984. Before that I was a “skip shooter” on the 11 meter band. My Army MOS was 13E. I’m presently a Certified Electronic Technician working in the Land Mobile Radio (LMR) industry. Survivalists who use tactical radio communications, whether it is CB, MURS, FRS, marine band, or VHF/UHF ham, need to be aware of a police scanner technology called either …


Two Letters Re: Force Multipliers for Retreat Groups

Dear Jim: Regarding force multipliers, you touch on early warning with SIGINT, HUMINT and night vision, but I would argue that more immediate early warning through intrusion detection or perimeter security should be stressed as well: If you are not aware of the bad guys approach, then all your other defensive measures are for naught.  Even just having a minute to muster a defense, instead of 10 seconds, could make all the difference.  Imagine an early warning on the approach of intruders at O-dark-thirty, with your entire team wide awake and suited up in defensive positions, vs. waking up to …


Force Multipliers for Retreat Groups

In the past 60 years military organizations of First World countries have often dominated their foes in combat because they’ve taken advantage of Force Multipliers. These are technologies or tactics that dramatically increase (“multiply”) their combat effectiveness. These multipliers are typified by electronic communications, aerial bombardment, intelligence gathering, rapid troop transport, electronic warfare, force concentration, and the use of precision guided “smart” munitions. Similarly, I suspect that in a post-collapse world, Constitutional law and order will best be reestablished by those who stand ready to employ force multipliers of their own. These will likely include: Uninterrupted radio communications to provide …


Letter Re: OPSEC Issue: Geotagging on Pictures from Smart Phones

Dear Mr. Rawles, With the proliferation of smart phones, as well as advanced cameras with GPSs installed, people may be giving away more information than they intend to when they snap and distribute pictures. This can be an operational security (OPSEC) issue. Embedded in the Exchangeable Image File (EXIF) data on the picture, the GPS coordinates of the picture location may be stored for anyone to access. This is especially a problem as people post these pictures online (for social networking, emailing to friends/family, or for online sales, etc.). This embedded GPS data can reveal the exact location of your …


Letter Re: Build Your Own HF Transceiver Antenna

The following is my contribution to SurvivalBlog about antennas for High Frequency (HF) Transceivers. One antenna that has served me well over the years and easy to build is the G5RV antenna. Louis Varney, a British ham, came up with idea for the G5RV which also his call sign. The G5RV is a dipole antenna with 51 foot legs and the center feed point being 28’6″ of 300 ohm twin lead transmission grade twin lead connected to RG58 coaxial cable (“coax”). There are other construction methods, but for simplicity, we use a 1″ outside diameter PVC Tee to create a …


Letter Re: Digital-Analog Cell Phones for Rural Areas

Dear Jim,   I have some cell phone details to your readers. I used to work in the cell phone business as a repair tech. Phones made before 2003 are not legal for activation in the USA. Some people continue to use old legacy hardware on the network, grandfathered in, but once that phone dies, they have to upgrade, under law, to an Enhanced 911 compliant/compatible device. That’s straight from the FCC, no ifs, ands, ors or buts. That means the Bag Phone, and even the StarTac aren’t legal. This is not to say that you can’t work around this …


Letter Re: Digital-Analog Cell Phones for Rural Areas

James, Thanks for the invaluable resource – knowledge – as provided by SurvivalBlog.  I was wanting to get some feedback on long range phones, particularly the Motorola M800 Bag Phone.  From what I can gather, this phone is dual digital and analog and it is described as used “for workers in the Oil and Gas, Agriculture and Forestry industries. Now you can stay connected in the field, on rural or urban highways, when traveling, at the cottage or even camping”.  I travel into Appalachia in Eastern Tennessee and Southeast Kentucky and also have a houseboat (on a mooring line, so …


Letter Re: The Value and Practice of Journaling

Hi, I just read the article on the use of acid free paper with interest and noted that Hammermill makes printer paper that is acid free. Some of it isn’t much more than regular paper, so it might make a good choice for [long term archiving of] those manuals we print off the Internet. Amazon sells several varieties. God Bless! – Mack G. JWR Replies: That same paper can be used to make bound journals or hardback books from downloaded PDFs. If you are handy with tools, you can do your own stitched bookbinding. This way you can create your …


Letter Re: The Value and Practice of Journaling

Mr. Rawles, M.E.R. makes good points for the practice of journaling. I, too, encourage the activity. I would add a related activity – logging. No, not cutting trees, but recording activities, events, and details. I do my journaling within my log. I am not big on “my feelings”. I am more about doing what is needed and savoring the feelings later. Better? No. Different perhaps. I have found logging to be extremely valuable. My log has been computerized for decades, but lends itself to the same manual media as presented by M.E.R. I have recorded diverse events for years. I …


Letter Re: The Value and Practice of Journaling

Dear Editor: That was an excellent article of journaling, but I would like to emphasize the importance of using a notebook made with quality paper. After my father passed away last year at the age of 95, we found his journal that he kept during World War II. He wrote down his thoughts as the plans for the invasion of Japan drew near, as they entered Tokyo Harbor for the surrender, his visits to his Japanese counterparts and their families, the worry about whether they would be attacked as they went ashore, and countless other glimpses into that time. Much …


Letter Re: Post Disaster Wi-Fi Commo Networks

James: What M.B. is describing in his letter “Post Disaster Wi-Fi Commo Networks” is ideally served by a mesh network. I’d suggest starting at the Open Mesh web site. Click the Support link for tutorials and frequently asked questions (FAQs). If you want to link up a neighborhood this can work fairly well. Mounting the radios outside helps considerably and will often be required as the 2.4 GHz signal doesn’t penetrate obstructions very well. Existing wireless routers, old 2.4 GHz cordless phones, etc may interfere. If radio links are more than a few hundred feet apart you’ll need to get …


David In Israel on Secure Personal Computers

The recent article: “Built-in Obsolescence, by Margaret G.” prompted me to comment on personal computers. I am a die-hard anti-Windows guy. The troubles caused by the easy subversion of your own computer by bad people combined with terrible permissions allowing user space programs to affect and jump to your whole network makes it a no-go operating system for people wanting reasonable network security unless you are a computer scientist working for the NSA or other governmental agency with a contract which allows you to review and customize the actual source code. While most windows boxes die a slow slide to …


Letter Re: Post Disaster Wi-Fi Commo Networks

Sir: One thing not mentioned in the survival groups web sites is the use of ad-hoc wireless wireless fidelity (wi-fi) networks. When me and several others put together a group plan, we came up with the idea of using wi-fi as a short range method of communication, information sharing and news distribution. We found several Wikipedia pages devoted to getting maximum range from a wi-fi router. Many of these methods can cover entire small towns. Enabling the password encryption features built into these devices can while far from perfect provide a super secure text and voice communication service when used …