Letter Re: Surplus Wireless and Hard Wire Seismic Intrusion Detection

Hi Jim, I like your site! (And enjoyed “Patriots” quite a bit, too!) It was referred to your site by a customer in Louisiana. My customer mentioned that I could probably mention my remaining TRS-2 PEWS seismic intrusion detectors on your site. We have about 30 detector/transmitters (DT-577 V(6) /TRS-2) left. @ $60/ea. (these run on a 9VDC ‘transistor radio’ battery for about two weeks, and are on 150.6 MHz) Also have about a dozen of the R-1808 V(6) /TRS-2 Receivers (same frequency) @ $500 each. (These run on two each 9VDC batteries for a couple of days.) All of …




Letter Re: Another Six Meter Band Propagation “Opening”

Jim: I worked a few stations this evening; one into Montana with my 10 watt transceiver. The 6 meter band has been red hot the last few days. I’ve even heard brief openings allowing hams on the West Coast of the U.S. to chat with folks in Europe. Sometimes the openings start very early in the morning. These are very unusual propagation conditions. OBTW, You have to read this: http://k7xc.tripod.com/ This guy is very funny. His writing style is great. He should start his own blog! Talk about working on a shoe string. Best Regards, – Fred the Valmet-meister




Letter Re: A New Google Earth Feature Tailored for Ham Radio Operators

Jim: Check this out! http://www.dxers.info/google/earth/index.php For example, scroll down to 6M and click on the 1 hour map. It brings up Google Earth with the “push pins.” When you click on the push pin you get the call sign of the amateur operator which can be put into www.qrz.com, and that tells you who they are and where they live. – Fred the Valmet-meister




Letter Re: Licensing Requirements for FRS Versus GMRS Radio Transmission

Dear Jim: I recently purchased a Motorola SX 700 Radio. Inside the package is a notice regarding [U.S.] Federal Communications Commission (FCC) licensing. It states that if you operate on GMRS frequencies you need a license from the FCC. Channels 1-7 and 15-22 are GMRS. What about channels 8-14? Do I need this license? Or can I use Channels 8-14? Thanks. – J.H. JWR Replies: Your assumption was correct. No license is required in the U.S. for transmitting on Family Radio Service (FRS) channels. (Channels 8 to 14). But you must have a GMRS license issued by the FCC to …




Letter Re: “Power Up”–A Useful Reference on Battery Conversions for Military Electronics

James, You need to take a look at this link. It is an online version of a very rare book (Power Up) that shows how to make standard battery conversions of many military items, something that could come in handy one of these days. Best Regards, – Jim K. JWR Replies: This link works well in Firefox, but Netscape some other browsers have conflicts, so you may have to turn off Java to see this page properly. Once there, click on the link for any particular piece of military equipment. This is indeed a great reference!




Letter Re: Of Computers, Generators, Power Anomalies and Lightning

Greetings Jim, I read Redclay’s letter on his questioning using electronics with generators. Ham (Amateur Radio) operators have been using various electronic devices for years powered by generators. The use of power sensitive devices such as a computer on a generator is fine if you take some precautions. First off the generator is what I called a “spiky” power source. So to smooth out the power supplied to the electronics one wants to use a good spike/surge protector between the generator and electronic devices. Do not skimp on cost and quality here. In my opinion it is preferable to use …




The Recent “Opening” of the 6 Meter Band

Jim: The first two weeks of February were spectacular for us hams working the 6 meter band. From my home in Northern California, I worked all western states using only 10 watts on an Icom IC-560.  No power amplifier was needed. One QSO [two way conversation] that I did lasted for 30 minutes to a gentleman right outside of  Tombstone Arizona on 52.525 Mhz FM [mode]. What was so unusual about this, is that is was not in SSB mode. The QSO was nearly as good as a local 2 meter simplex contact. The gentleman was using an Alinco FM-only …




Letter Re: Changing The Retreat Locale Paradigm: Cellular Phones and Two-Way Satellite Internet Systems

Survival Communications, Cellular Phones, Satellite Internet Service Hello James, I was faced with making decisions on how to connect to the Internet at a faster connection as the city technology has not reached me yet. I looked into DirecWay and Dynamic Broadband, and I can’t find the other company off hand. In my research, there was a hefty out of pocket to acquire the equipment, and bulkier fees per month with contracts running years. I found in looking further that claims of download speeds were just that–download only. It turns out that the upload speed,(at least to residential isolated candidates) …




Two Letters Re: Changing The Retreat Locale Paradigm: Cellular Phones and Two-Way Satellite Internet Systems

Sir, Firstly let me congratulate you on taking your blog full-time. It has proved an excellent resource for myself and getting friends and family to see the benefits of preparedness. Almost as effective as your novel, in fact! I hope resources will permit me to become a contributing reader in the very near future. A quick note on Cellular Broadband for remote locations, several companies are now offering broadband speed to cell phones or mobile devices(such as the Palm Treo or the RIM Blackberry). Several of these phones can act as a modem: by attaching the cellular phone to the …




Letter Re: Changing The Retreat Locale Paradigm: Cellular Phones and Two-Way Satellite Internet Systems

JWR, Regarding your post on the above topics, another new satellite service of interest might be www.wildblue.com, who have been marketing themselves through rural telephone and electricity co-operatives. As an alternative to a satellite ISP, [cellular services such as] Cingular, T-Mobile, and Verizon are beginning to offer wireless broadband services in limited areas. Cingular, for example, offers something they call BroadBandConnect, which can be added to your current account. One would then obtain a wireless PC card (modem card) and install it into your laptop or desktop(with additional hardware). For a static desktop setup, I have looked into replacing the …




Changing The Retreat Locale Paradigm: Cellular Phones and Two-Way Satellite Internet Systems

Whenever I talk with my consulting clients, the topic of retreat locales almost inevitably comes up. When describing their criteria for a new retreat property they almost always say something to the effect of: “The property has to have an existing phone line or one nearby, so that we can have Internet service.”  But these days, I’m now quick to point out:  “That shouldn’t be an issue.”  Why? Because things have changed. Lots of Asians, Europeans, and Americans now have no traditional “land line” phone service at all. They utilize the steadily expanding network of cellular phone towers. Even more crucially, …




Letter from “F1” on Amateur Radio Gear and Out of Band

A couple of comments on a couple of things: All of my (ham) radios are modified for out of band operations. No, it’s not legal to use them to transmit on those frequencies, except in an emergency. However, I can listen to public service agencies (not using trunked radios), listen (in the city) to the direct feed helicopter traffic reporters and get traffic reports all the time (one helicopter crew will report for a half-dozen or more different stations at different times during the hour), etc. Since most modern radios are very, very easy to modify (clip a diode or …




From the Army Aviator on Military Surplus Transceivers

Jim: Fred the Valmet-meister’s letter got me thinking about radios. I’ve been using the SpecOps AN/PRC-104 HF radio, I have more than one, and I am continuously amazed. This afternoon, from my box canyon in central Colorado, wearing the backpack 20 watt radio, I held conversations with friends in Michigan, Virginia, SoCal, Oregon, Kansas and others of “The Group”. This isn’t what some call skip, this is a knowledgeable amateur operator plying the trade. The conversations were generally telephone quality. Tying this into Mr. Coffee’s posting, I also use the SpecOps OP-177 power and battery charger kit which consists of …




Letter from Fred the Valmet-Meister Re: Finding Quiet Amateur Radio Bands

Jim: I was listening to a bunch of hams chatting last night; some from Arizona and some from California talking about radios and bands etc. One of the things they talked about was that outside of the big cities, even on the popular 2 Meter band, it is pretty dead; even in [populous] California. Still, the most popular and most reliable means of two-way communications on the road is the CB radio. It is also much “cleaner” outside of the cities as well. Anyway, it was interesting to hear since some of these guys that travel a lot. The hams …




Letter Re: Recommendations on CB Radios?

Sir: I am new to the blog.  Just got your book “Patriots” and realized I am nowhere near ready.  Question is:  What are the best Citizen’s Band (CB) radios for both base and mobile use.  Can you give me a few brands and models? I am interested in long range. I am a ham so am familiar with the terminology, but not familiar with CB. I think when the crunch comes there are going to be more CB people out there than hams. Thanks. – R.I.P. JWR Replies: I tend toward either: Pre-1980 crystal-tuned 23 channel SSB-capable CBs with a full five watt …