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Premium Subscriber Lookups: 6673

Prior Calls: W9EED, AC9BK, N9EJC, WD9CYV


Tennadyne T10 Log Periodic - Original Version 10m-20m at 55'.
(removed: K4KIO Hex beam at 55 feet (see pictures below for Hex-A-Vator)
IAC Double Bazookas for 30, 40, 80, 160 (thanks Bob K9EID)
432mhz UHF:
Homebrew Phased YU7EF 432mhz 27 element Yagis at 65' (thanks Steve, N4PZ...)
144mhz VHF:
12 element M2 2M12 yagi at 38'

432 Beacon: EN53hb ...NOW ON TIMER: 12pm-Midnight CST or 1800-0600 UTC.

432.306mhz Beacon, 8 Watts to single horizontal Halo. Approx 120' HAAT, 850' ASL.
Please QSL with RST via email above. Thanks.

Icom 490 used as CW Beacon radio. Old UPS carcass modified for 12vdc to radio, and radio memory backup, plus an automatic kill switch to prevent xmit on incorrect frequency due to power loss (requires manual reset due to radio design).

Arduino repurposed as Beacon Controller, keying via 5v reed relay. Thanks to K6HX for the quick beacon code on his website. It took 16 minutes to make the beacon controller, that included the Google search to find Mark's code, and have it clicking away. Fast. Easy. Convenient.

Above: N9EM 432 beacon halo under 220 repeater antenna. Thanks to Greg, KA9VDU, for building the Beacon Halo. Antenna detuned a bit when I mounted it near that metal mast.

Above: Arduino Board exposed on left, and Beacon System testing on right. 12 volt PC Fan blows 24/7 on Radio heatsink. Makes a HUGE difference on TX heat sink temperature. We need to take care of this little Icom! (Thanks N6TOC.)

You've heard of "Dead Bug", "Free-Form", and "Manhattan" style construction techniques? I use "Ugly Wire" Style. ha.

To be honest, I just don't care what stuff looks like anymore... as long as it works!


N9EM Linked Repeaters-
UHF Repeater: 442.550 123.0 Madison, WI
VHF Repeater: 145.150 123.0 Madison, WI
Future Links-
UHF 444.000 KA9VDU
VHF 145.170 K9QB
220   222.060 K9QB
All-Star Network




432 UHF Amp and Rack:

K2RIW design made by ARCOS. Got from VA3ELE. No power supply with it so I homebrewed the HV and the Bias/Screen (4CX250Bs) under the tutelage of Steve/N4PZ.  It works! (Thanks Steve/N4PZ.)



Yeah, I put the cover on the supplies after picture... not good to run 2200 volts without a cover...

M2 Sequencer near top. Simple squirrel cage blower off the side of the rack.

600W at 432mhz all day long. Awesome.




Home antennas. 144, 432, HF-Log, HF bazookas.


Now this is what I call a recipe for HOT DX!



Man Does Not Live By Ham (radio) Alone... sometimes you need Brisket!



...an interested bystander.


I visited Franklin BBQ in Austin,TX with my wife in Fall of 2016. It changed my life. Unbelievable flavor in their smoked brisket, Texas style. I got the welder plugged in and made a smoker from an old water heater and am trying to come even just "close" to Franklin's.




New... May 16, 2015...New HF Antenna... hooray, wanted one of these since I was 13 years old! Only took me 38 years!

Rebuilt old Tennadyne T10 Log Antenna donated from WB9RSQ. Thanks Chris!

May 2015 got T10 on tower, and put the 432mhz 27-element N4PZ-built weak-signal Yagi above the Log.

Thanks to KA9VDU, Greg, for the help in swapping in the T10. Great help!




Previous Antenna, K4KIO HEX BEAM:







I got my Novice around 1976 in Madison, WI as WD9CYV. Then General and lived on 20m CW. Though I loved DXing I never bothered to hunt for any of the awards. I got N9EJC a few years later.

Then March 2012 when I was narrow-banding some commercial UHF repeaters I run at work I was in the FCC ULS system and looked myself up... Expired 5 years! Blast! This will NOT stand.

I hit the books and retested so now back in the saddle.

My old trusty Yaesu FT101EE no longer transmits so I tried a K3 with LP-PAN. Boy, what a change moving to solid state gear...What?! No Plate, No Load! How can it work?!

I put up 50 ft of Rohn45, and have a K4KIO hex beam, dipoles, and my 5.8ghz internet link on top. See pics below.

I am a Mechanical Engineer (UCLA '84) and do mostly computer networking, building automation controls, and other HVAC/electronic system design.

I am also a bluegrass banjo player in The Cork 'N Bottle String Band here in Madison, WI. here:  http://www.bignew.com

Two kids. You see youngster Katie at the helm in the top picture.


..."Dad, whats a buro?"


I lived in Los Angeles, CA for 10 years and was on the VHF/UHF repeaters there as N9EJC. No HF from W6-land.


Hope to hear you on the air!


John. N9EM


Katie monitoring FT5ZM Pile-up!


Hey Look... Sausage with MY name on it! Naw, I don't make it, I just eat it. But same name.





Friends helping with tower and dipole ropes...


Now to move the beam to the top... K4KIO Hex Beam to tower.



Coax Box, base of Tower:

The Hex-A-Vator:

W8RAT RTInnovations Razor Rohn45 lift;  For Razor Lift go here: http://www.rtinnovations.net/


Hex nested to side of house for service, ice-storm, or Tornado (not too many hurricanes in midwest):


Starting to raise the Hex:


Hex nearing top of 50 foot Rohn 45 tower:


Hex at raised position above my dipoles and 5.8ghz internet dish antenna:

Going up side of tower:


Now, using Kenpro KR-500 Elevation Rotator I am putting Hex into operating position:


Still rotating Hex into horizontal position:


Yay, horizontal operating position, now at 55 feet above ground:


Hex is nearly at tree top level. I got some tall trees! need to swing a Delta Loop in there somehow. Poor forlorn roof tower, don't worry, we will give you something to hold and love! Maybe an APRS node vertical antenna for nearby interstate I-90.


Skyward bound HF... dipoles as inverted Vee for now.

Will take better pictures if we ever see blue skies again. Will try to make short video also.

Thanks to W8RAT, John Stevens (see his QRZ page at  http://qrz.com/db/w8rat  ) for the Razor antenna lift. It works as intended, has wheels for smooth raising/lowering, and John was great to deal with on this project. If you are thinking of a lift, call John before making your final decision.




8546038 Last modified: 2017-12-30 17:42:29, 11638 bytes

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Public Logbook data is temporarily not available for this user
Grid Squared Award#12997
Granted: 2016-07-07 19:35:02   (N9EM)

World Continents Award#6042
Granted: 2015-03-02 04:10:04   (N9EM)

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