GuerrillaComm: Syntor X9000

I mentioned GuerrillaComm a little while back.  He puts out good material.

The only Syntor X9000 I would consider is a VHF-Low Band (30-54 MHz.) model.  With the modified HamSyn RSS, you can get a nominal 100 watts FM from 27-54 MHz.  However as GuerrillaComm mentioned on the blog, programming the radios with newer computer hardware is fraught with difficulty.  Also, a lot of those old Syntors have seen better days and may not be operating to spec.

If I happened to come across a free Low Band Syntor, I wouldn’t turn my nose up at it, but there are more modern frequency-agile radios that will do the same thing, albeit not at 100 watts.

tyt_mobileThe 50 watt quad-band TYT TH-9800 could be a contender. I mentioned this radio in a previous post, and the extended TX/RX coverage on the radio was nice, although the power output does drop the further “out of band” you go. Milsurp tactical radios of the PRC-77 and VRC-46 variety run 30-75 MHz., but they are limited to 50 KHz. steps and run a little more deviation than your standard low-band land mobile radio.  Many “10 Meter” radios can run from 25 to 30 or 32 MHz.

There are a lot of choices out there.  You just have to learn as much as you can so you can make an educated decision.

 

Wyoming and Wisconsin Class Updates

rto-advert-commo

  • I received word that there are only two class slots left for the class in Horicon, Wisconsin on September 13th-14th.  Sign-up information is at http://wp.me/a425eW-dW. If you are interested in this class, I would act on it, quickly
  • Today is the last day to take advantage of the Early-Bird rate for the Rock Springs, Wyoming Class on September 6th-7th. You can click here to pay via Paypal, If you wish to pay via more old-school methods, please make sure your envelope is postmarked by Monday, 8/18.  Send your Money Order to:
    Homestead Design Works
    PO Box 96
    Plymouth, CT 06782
    Please send me an email <sparks31@hushmail.com> letting me know it’s on the way.

Those of you who have signed up for the Wyoming class will receive an email this evening with the specifics.  If you have not received an email from me by tomorrow, please  email <sparks31@hushmail.com> me.

Discount hotel rooms are still available at:

Best Western, Outlaw Inn
1630 Elk Street
Rock Springs Wyoming 82901

phone number 307-362-6623
fax number 307-362-2633
Reservations only 888-688-5296

Their price is normally $129 per night for a single. They have discounted for the class a price of $88 plus tax.

They must reference Signal Corps to get the discount for the 5th, 6th and the 7th if need be of September.

See you in Class.

 

Triangulation of a VHF Signal with RTLSDR-Scanner

Via http://www.rtl-sdr.com/triangulation-vhf-signal-rtlsdr-scanner/

A few months back we posted about how the the RTLSDR-Scanner software had been updated to include signal triangulation capabilities. Now blogger Tobby has written a post about his attempt at triangulating the source of an encrypted police signal with RTLSDR-Scanner.

To do this he set up a laptop in his car with RTLSDR-Scanner installed and connected his RTL-SDR with stock antenna and a GPS receiver. After driving around for only 15 minutes he was able to get a triangulation heat map of reasonable accuracy.

What YOU Can Do NOW

There is always something you can do, regardless of where you stand with your commo setup, that will help you improve your capability.  It doesn’t have to be something high-end and advanced like Spread Spectrum Research. In fact, if you’re still fairly new at this, the simpler stuff will help you out more.

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This is a VHF HT “squad radio” hooked up to a homebrew yagi antenna.  Using a small directional gain antenna such as this can help boost a low power signal from a portable.  How much of a boost?

That CW beacon was 90 miles away running only 10 watts into a modest antenna.  Yes there was some elevation involved, but not much and the line of sight wasn’t that great.  That FT-817 was hooked into a 3-element yagi for 2 meters.

Want to really do something dirt cheap, easy, and far out?

That was a homebrew crystal radio set for AM broadcast and shortwave made from junk parts.  Stuff like this will work very well for civilians in your AO to hear the news from a local post-collapse broadcast station.

Low on cash and want to explore the lower ham bands?

QRP HF gear is easy to build and inexpensive.

That’s just three low-budget ideas.  I’m sure you can think of others.

 

Advanced Research

This one is for IIIper Technical Specialists who are interested in some advanced research.  The rest of you can safely ignore it for the moment.

Many of you are familar with this radio system:

For those of you who aren’t, that’s a SINCGARS Combat Net Radio.  Among its many features is a Frequency Hopping Spread Spectrum mode, just like those Motorola DTRs that some of you are fond of. Unlike the DTRs that run a watt on 900 MHz, a SINCGARS radio runs 5-50 watts on VHF (30-88 MHz.), depending on the configuration. And yes, a SINCGARS operates on the 6 meter ham band with no problems.

Unfortunately, working SINCGARS radios are not too common on the surplus market.  Here’s where the “advanced research” part comes in.

During the relatively halcyon days of the late 1980s, there was some spread spectrum research going on in the amateur radio community. The efforts of that research is represented here:

http://www.amrad.org/articles/Spread_Spectrum_Source_Book_Kesteloot.pdf

This is something you R&D types should look into, if you are up to the task…

happy little

See you in class.

KC2AXU SK Update

Those of you who have been following the blog are aware of the passing of fellow warrior Werner Totino, KC2AXU. Werner was insturmental in the creation of digital HF networks used by the III%, and many of you asked for an address to send donations to help his family out with the funeral expenses.

Those of you who wish to do so, may send your donations to:

Nikki Douwes Dekker
1297 Route 22
Pawling, NY 12564
Any amount, however small, would be greatly appreciated.
Thank you.