Amateur Extra Class
Rochester, IL EM59fs60
Mobile Operations

NEW! - Click here to see club membership and awards earned by K9ZXO
NEW! - Click here to see my received QSL cards.
NEW! - Click here to see my received DX-ONLY eQSLs.
NEW! - Click here to see my received SSTV QSLs.
NEW! - Click here to see my QRZ page.
All above were updated: March, 2019

K9ZXO QSO Activity
(8,000 QSOs)

See the 6 Meter Coverage
See the 10 Meter Coverage
See the 12 Meter Coverage
See the 15 Meter Coverage
See the 17 Meter Coverage
See the 20 Meter Coverage
See the 30 Meter Coverage
See the 40 Meter Coverage
See the 80 Meter Coverage
See the 160 Meter Coverage
See ALLBANDS Coverage

Click the image for a larger version

K9ZXO QSO activity by BAND and MODE.



Clubs and affiliations.


Amateur Radio instructional videos produced by Custom Video Systems, Angry Kitty Productions, and K9ZXO.

K9ZXO Explains Hellschreiber. A detailed explanation of the history, operating theory, and operation of one of the oldest 'digital' modes.

Modes, Modes, and More Modes. A quick explanation of the various contexts for which the word 'mode' is used.

Audio modulation, distortion and square waves. A quick tutorial in what square waves are and their association with distortion and testing.

What Are Maidenhead Grid Squares? This one is pretty well self-explanatory.

Logging and ADIF. This video explains basic logging and Amateur Data Interchange Format (ADIF).

SSTV 101 by K9ZXO. We are avid SSTV enthusiasts. This video is the first entry-level explanation of the format.

K9ZXO weird Antennas. Have a look at a couple of K9ZXOs strange antennas.

K9ZXO New Digital Modulation Monitor. This is a short demo showing my scope monitoring several different digital mode modulations.

K9ZXO New 5 port HF antenna switch. K9ZXO shows off his home brew remote HF antenna switch.

SVRC 70th Anniversary Dinner 3-3-2018. Ben Kiningham spoke at the Sangamon Valley Radio Club's annual dinner.

JT65 Tutorial. I admit - this video is very dated. It was produced when JT65 was first introduced. Watch it with your way-back machine.

K9ZXO goes mobile! K9ZXO/M
We've been operating mobile a lot lately. Here's how we pulled it off!
K9ZXO goes mobile.

See the log here
K9ZXO tours W1AW
In 2015, my wife and I toured the ARRL headquarters in Newington, CT and was afforded the opportunity of working as a guest operator of W1AW. It was very much fun. I was able to work 15 and 20 meters using Hellschreiber - a mode the Chief Operator admits isn't used there very often. Click the link below for a quick slide show:
K9ZXO tours W1AW and the ARRL

Two Strange Antennas
One of my more recent projects was to construct a new antenna that would add a North-South pattern for my station. It also would be capable of switching from a horizontal dipole to a vertical - changing the pattern and giving it some weather protection on call.
The second antenna is one i use for Field Day and other special events. It is about the smallest footprint 20 meter dipole I've seen. The antenna is fan-folded, inductively tuned with a built-in balun.
The videois posted on YouTube (https://www.youtube.com/watch?v=eJ7fx3NjNZI) but can be seen here as well.

APE AGAIN! - August PSK31 Expedition with the PODXS-070 Club.
To encourage PSK31 operations in the field and to research and gain practical experience in the portable capabilities of the PSK31 mode, the PODXS Ø7Ø Club offers to the members the August PSK31 Expedition (APE) Award. The APE Award is offered to any Ø7Ø Club member who during the month of August, organizes, sets up, and operates a portable PSK31 expedition which meets all Award requirements.
This year (as we did the last two years) my brother, Chuck (K9PLX) and I got together as a Special Event Station K9H to celebrate the 3rd annual excursion to our hometown of Jacksonville, Illinois - AND participate in the 070 APE event.
See the published account of our 2011 APE event courtesy of the PODXS website and K9PLX. (Scroll down to K9PLX - K9ZXO )
See a short video of the 2010 APE here.
See the published account of our 2010 APE event courtesy of the PODXS website and K9PLX. (Scroll down to K9PLX - K9ZXO )
See the published account of our 2009 APE event courtesy of the PODXS website and K9PLX. (Scroll down to K9PLX - K9ZXO )

Digital Modes Demos and Identification
It is sometimes confusing for new digital hams to identify a particular digital signal by the sound of it or by what it looks like on the "waterfall" spectrum display.
Here are examples of the more popular modes. Click on the speaker to hear the signal (in MP3) or click on the waterfall to see what it looks like.

The Original Digital Signal - CW
BPSK-31 (Binary Phase Shift Keying - 31 Baud)
BPSK-63 (Binary Phase Shift Keying - 63 Baud)
BPSK-125 (Binary Phase Shift Keying - 125 Baud)
Domino-4 (4 tone)
Domino-8 (8 tone)
Domino-16 (16 tone)
FELD HELL (Field Hellscreiber
*Note: Hellscreiber is German for "Light Writer".
Also named for the inventer, Rudolph Hell.
FSK-HELL (Hellscreiber via Frequency Shift Keying)
MFSK-8 (Multi Frequency Shift Keying - 8 tones)
MFSK-16 (Multi Frequency Shift Keying - 16 tones)
JT-9 ** NEW MODE **
Olivia 125-4 (125 Baud, 4 tones)
Olivia 250-8 (250 Baud, 8 tones)
Olivia 500-16 (500 Baud, 16 tones)
Olivia 1000-32 (1000 Baud, 32 tones)
SSTV-S1 (Analog format, Scotty 1)
SSTV-S2 (Analog format, Scotty 2)
SSTV-M1 (Analog format, Martin 1)
SSTV-M2 (Analog format, Martin 2)
SSTV-Digital (EasyPal, 800x600 image)

PSK Demonstration Video
Here is a useful tutorial on PSK communications. This on-screen video demonstrates a basic PSK QSO.
Click the link to watch it.

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