Hard not to be excited about the new Tennadyne T-12Log Periodic Antenna

Tennadyne T-12 Antenna up at 76 ft on Skyneedle at K9ZW Main QTH

The Tennadyne T-12 is up at about 76 ft (23m) but I don’t have the rotator controller set up yet, so it is essential fixed.

Yet the performance already has me enthused!

First day running FT8 in the background (I was pretty busy, so I missed a lot of DX opportunities) netting a bunch of DX – over 40 DXCC entities in 165 QSOs!

In no particular order:

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Assembling Log Periodic Antennas – Part 2

Another big lift in the process of getting the HF log periodic antennas up. With much help from Vern K9EME, the T-12 is up and initial testing shows it’s performing very well.

There are a lot of steps to do in any antenna project, and this one was no exception.

I’m completing this post Sunday afternoon, as I have had enough feeding the mosquitos for a weekend.  Pictures with brief comments (and yes, the project is not done yet):

The Skyneedle has an offset rotator drive.

 

At the Skyneedle’s lowest elevation it is obvious a few more trees need to be cut back.

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Non-Radio – Citroen Traction Avant 11BL

1954 Citroen Traction Avant 11BL Sedan

 

Side view

 

A 1954 Citroen Traction Avant 11BL joined our fleet.

While having a very gangster/steampunk look, the Traction is technologically an advanced car for its era.

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Thinking Ahead – Active Countermeasures for Security, Privacy, and Anonymity Exposure as an Amateur Radio Operator

The series start with https://k9zw.wordpress.com/2019/09/10/im-a-ham-or-am-i/

Okay, active countermeasures are a different level of action intended to enhance your Security, Privacy, and Anonymity Exposure as an Amateur Radio Operator.

Suggestions here are mostly low-tech, as we are not going to pretend we will spoof voice-printing and transmitter-technical-identification.

What the goal is will be to provide served agency services while avoiding compromising your personal and family security, negating your privacy and completely losing your anonymity.

Why?

Reasons range from physical security to reducing your personal exposure when the legal (or political) jackals decide to see who they can take a bite out of.

The list is not comprehensive, and is intended to get your thinking down the paths that will preserve your security, privacy and anonymity best.

Your Personal Transponder:

First is almost all of you are carrying a personal transponder. Yes, your cell phone. Having an awareness that if the cell system is up, you are located and identified is important. While not commonplace, it is possible that this information drifts out to where you might not like it.

Your strategy might be to turn off and shield your phone. Or leave you phone at home and use a burner-phone while activated. Or go phoneless.

Your Transport Transponder:

If you vehicle is contemporary it will have one or more transponders active. On-Star is one. Other telemetric systems may be active or it may respond if “pinged.”

Countermeasures include removing the gear (difficult if recently built), shielding the transceiver parts, or feeding the system misinformation.  Easier is to use a pre-transponder vehicle.

Remote Transmissions:

If conditions allow and you have the ability to work remote, your physical presence may be obscured.  In warfare often the transmit antenna or antenna/transceiver for some systems is displaced from the operator for exactly this sort of reason.

Obscured Transmissions:

Going digital comes to mind, as does using a phrase-based system to convey information.  Makes more sense to transmit “Cowboy sees Mouse” – a phrase that is NOT encoded and means exactly what it says, and then have a cheat sheet where you can see that “Cowboy” means a certain operator. “sees” means is nearby or at a location, and “Mouse” means “Main House.”  Sort of like when the XYL says a few words and you “know” the bigger meaning…

 

73

Steve
K9ZW

Thinking Ahead – Mitigating Security, Privacy, and Anonymity Vulnerabilities as an Amateur Radio Operator

This series started with https://k9zw.wordpress.com/2019/09/10/im-a-ham-or-am-i/

This post we are talking about mitigation – the passive reduction of vulnerabilities to your Security, Privacy, and Anonymity as an Amateur Radio Operator.

As previously mentioned avoiding the use of your call sign by using either a club or if appropriate a tactical call sign.

This is more effective if not on phone (SSB/AM/FM) as your voice doesn’t give you away.

In general it may be useful to ID at the legal widest time spacing.

Also a good time to lose your Callsign hats, pins, badges, jackets and maybe pick a vehicle without ham plates. Many EmGov/Emcomm outfits supply credentials – ours hangs around your neck – but there is no emphasis on checking these very closely and the general public or other agencies likely have never seen them.

I know of a ham who if activated for real plans to use his old pickup, while strategically parking his vanity callsign plated daily driver at his home where it can be seen at his QTH, with the idea that it shows the boss is in.

More to follow,

73

Steve
K9ZW

Assembling Log Periodic Antennas – Part 1

Time to (finally) build the Log Periodic Antennas for the home QTH.

The big one is a Tennadyne T12.30-10HD – a twelve element 30 to 10 meter version.

Here is photo borrowed from the manufacturer’s website of a T12 on a tower (mine is going on a Skyneedle):

T12 from Tennadyne Website

Assembling has taken several after work sessions.  Here are some photos:

Boom parts as unboxed

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