Category: radio

aprs.fi closed in U.S. on Wednesday

From: http://blog.aprs.fi/2012/01/aprsfi-closed-in-us-on-wednesday.html

aprs.fi will join Wikipedia and Reddit, and protest the proposed U.S. SOPA/PROTECT-IP legislation by closing down on Wednesday.

The aprs.fi outage will only affect clients in the United States (or those with IP address mapping an U.S. network operator – the targeting is not fully accurate).

Although the law is being made in the U.S., it will break the Internet on a global scale by making sites such as aprs.fi liable for links and content posted by the users of the site. Sites like aprs.fi are commonly run by individual developers or small volunteer teams. Due to the huge volume of automatically published user-generated content (50 packets per second currently!) it would be impossible for me to go through it all before publishing. If some APRS user would post links to copyright-infringing material, even when that material would reside somewhere else than aprs.fi itself, aprs.fi could be shut down in the U.S. and there would not be much that I could do about it.

I read earlier about the Wikipedia outage. I wonder who will be next to jump on the protest bandwagon. There is nothing that warms the cockles of my heart more than a good ol’ fashion protest.

Pearl Harbor: Patton vs The Signal Corps



“Getting the Message Through: A Branch History of the U.S. Army Signal Corps” by Rebecca Robbins Raines
CENTER OF MILITARY HISTORY, UNITED STATES ARMY, WASHINGTON, D.C., 1996 (pgs 242-244)

During 1940 President Roosevelt had transferred the Pacific Fleet from bases on the West Coast of the United States to Pearl Harbor on the Hawaiian island of Oahu, hoping that its presence might act as a deterrent upon Japanese ambitions. Yet the move also made the fleet more vulnerable. Despite Oahu’s strategic importance, the air warning system on the island had not become fully operational by December 1941. The Signal Corps had provided SCR-270 and 271 radar sets earlier in the year, but the construction of fixed sites had been delayed, and radar protection was limited to six mobile stations operating on a part-time basis to test the equipment and train the crews. Though aware of the dangers of war, the Army and Navy commanders on Oahu, Lt. Gen. Walter C. Short and Admiral Husband E. Kimmel, did not anticipate that Pearl Harbor would be the target; a Japanese strike against American bases in the Philippines appeared more probable. In Hawaii, sabotage and subversive acts by Japanese inhabitants seemed to pose more immediate threats, and precautions were taken. The Japanese-American population of Hawaii proved, however, to be overwhelmingly loyal to the United States.

Because the Signal Corps’ plans to modernize its strategic communications during the previous decade had been stymied, the Army had only a limited ability to communicate with the garrison in Hawaii. In 1930 the Corps had moved WAR’s transmitter to Fort Myer, Virginia, and had constructed a building to house its new, high-frequency equipment. Four years later it added a new diamond antenna, which enabled faster transmission. But in 1939, when the Corps wished to further expand its facilities at Fort Myer to include a rhombic antenna for point-to-point communication with Seattle, it ran into difficulty. The post commander, Col. George S. Patton, Jr., objected to the Signal Corps’ plans. The new antenna would encroach upon the turf he used as a polo field and the radio towers would obstruct the view. Patton held his ground and prevented the Signal Corps from installing the new equipment. At the same time, the Navy was about to abandon its Arlington radio station located adjacent to Fort Myer and offered it to the Army. Patton, wishing instead to use the Navy’s buildings to house his enlisted personnel, opposed the station’s transfer. As a result of the controversy, the Navy withdrew its offer and the Signal Corps lost the opportunity to improve its facilities.

Though a seemingly minor bureaucratic battle, the situation had serious con­sequences two years later. Early in the afternoon of 6 December 1941, the Signal Intelligence Service began receiving a long dispatch in fourteen parts from Tokyo addressed to the Japanese embassy in Washington. The Japanese deliberately delayed sending the final portion of the message until the next day, in which they announced that the Japanese government would sever diplomatic relations with the United States effective at one o’clock that afternoon. At that hour, it would be early morning in Pearl Harbor.

Upon receiving the decoded message on the morning of 7 December, Chief of Staff Marshall recognized its importance. Although he could have called Short directly, Marshall did not do so because the scrambler telephone was not considered secure. Instead, he decided to send a written message through the War Department Message Center. Unfortunately, the center’s radio encountered heavy static and could not get through to Honolulu. Expanded facilities at Fort Myer could perhaps have eliminated this problem. The signal officer on duty, Lt. Col. Edward F French, therefore sent the message via commercial telegraph to San Francisco, where it was relayed by radio to the RCA office in Honolulu. That office had installed a teletype connection with Fort Shafter, but the teletypewriter was not yet functional. An RCA messenger was carrying the news to Fort Shafter by motorcycle when Japanese bombs began falling; a huge traffic jam developed because of the attack, and General Short did not receive the message until that afternoon.

Yes… the bands are open

Like you needed me to tell you about it.

I was initially licensed in 2001. Finally upgraded to General in 2005. Up to this point, my ham radio career has been under less than optimal propagation. From the oldtimers, I’d heard tales of 10 meters… when the sunspots where there, 10 meters could be worked around the world with only a wet clothesline (not even wet, just a bit damp). Frankly, it was hard to believe. My one prior 10 meter contact had been an opening QSO during the 2006 Field Day… Virginia to New York, some serious DX? [I thought so at the time.]

We’ve all heard the news… 10 meters is open. But from an HF standpoint, I was limited to my Buddipole, where I was nugging out CW contacts on the 40M Novice Band.

This weekend I threw up some wire and everything changed…..

Europe, the Caribbean, Alaska, 10 meter magic! (… I thought 6 meters was The Magic Band?) 10 meters was like a local 80 meter ragchew without the S5 noise floor, everybody has a 2KW amp, and the vast majority of the inbreds were nowhere to be found.

Thanks be to Apollo – may the sunspots continue!

Time to look about getting a 10-10 membership…. and, with a little luck, I might even have the cards for DXCC.(!)

…. need to put a map up on the wall.

Ham Radio Deluxe vs fldigi

I’ve recently re-established my station here in Kansas. The majority of all the components of my station I was using previously in Korea: Elecraft K3 rig, a Dell Zino PC, using the MicroHam USB III as an interface between the radio and computer. The Dell Zino PC is configured for dual-boot: Windows 7 and Ubuntu. Last year I spent a good deal of time configuring fldigi, under Ubuntu, to fulfill the majority of my amateur radio automation requirements (rig control, logging, digital modes). After a bit of trial and error, I had fldigi working quite well.

Once I was back here in Kansas, I had a problem configuring the K3 – CW, as a mode, wasn’t working. Figuring I had messed up a setting, I reset the K3… which ended up not being the smartest move. Up to this point, I had never updated the K3’s firmware or backed up the settings. I (incorrectly) believed that Elecraft’s configuration software was for Windows only. An email to Elecraft generated a quick response with a copy of the software configuration file for my specific rig.

Weeks past as I avoided getting the hamshack into proper order. The hamshack became the default location for stashing half unpacked boxes. Once I finally made serious progress in sorting through and organizing everything, I was able to get to the K3 and PC. I booted up Windows 7, connected the PC to the K3, updated the firmware, and reloaded the original factory software settings. Things were looking up.

I decided to see if Ham Radio Deluxe under Windows 7 was easier to use than fldigi. I updated Ham Radio Deluxe to the current version and then attempted to get the MicroHam USB III to work. Frankly it was a pretty kludgey process. An additional program had to be installed to create a virtual com port in order to allow the MicroHam USB III to work. Configuring the soundcard, resident in the USB III, was also not very successful. Then I tried Ham Radio Deluxe, which had been my software of choice a little over a year ago. Bottom line, I was not pleased with Ham Radio Deluxe and decided to switch back to fldigi.

Booting into Ubuntu, fldigi worked from the get go…. rig control, log, and digital modes. For now, I’ll be sticking with Ubuntu and fldigi.

NOTE: Here is a list of settings that I use:

Fldigi config:
Rig control
– RigCAT
– /dev/tty/USB0
– Baud rate: 38400
– Toggle DTR for PTT

Ubuntu Sound Preferences
– Hardware: USB Audio CODEC, Analog Stereo Duplex
– Input: Internal Audio Analog Stereo [this confuses me, because I would expect the input would be associated with the USB Audio device (aka the Microham)
– Output: USB Audio CODEC Analog Stereo
– Application: No application

Wire in the trees…

Finally got around to hanging some wire today. At times it seemed like the trees possessed some type of magnetic properties, the wire clinging to every branch (… reminded me of Charlie Brown and his kite experiences). The good news is that the CSV19 Pneumatic Antenna Launcher is still fully operational. I used the small air compressor from my wife’s emergency car kit to fill it up. Admittedly, the first couple of shots from the CSV19 were a bit off. But once I had the CSV19 zeroed in, I was pretty accurate. Thankfully the XYL arrived home and was able to help me with some of the finesse work of pulling the wire up into the trees. The G5RV is up and operational. Now it is time to start filling up the log.

Radio Works – I love your antennas but your website needs a serious update.

More good news… I should have my 2m/70cm antenna up on the chimney on Monday.

Autumn = amateur radio time

Out here in Kansas, on the eastern edge of the prarie, the leaves are turning and the first frost is upon us. The time is NOW to get the hamshack in order.

(1) My VHF/UHF antenna and Davis weather station NEEDS to get mounted up on the chimney. I have the mounting brackets – thin aluminium straps that circumnavigate the chiminey. However, the roof at the new QTH is basically three stories high and the roof itself is pretty steep. Too steep for me. The solution? I am trying to get a local roofing company to give me an estimate for the job.

(2) The HF antenna. In the course of sorting through all the hamshack flotsam, I’ve started to identify “stuff” I can part with. Already I’ve said goodbye to some old MFJ TNCs, the Kenwood TS-930S, and my old TinyTrak (thank you Craigslist!). There’s more to part with and I’m still in the process of identfying them (… like an ICOM PCR-1000, TenTec RX-320, and a D-STAR DV Dongle for starters). More importantly (and back on topic), I unearthed two in-the-package wire antennas. The first is an 80M OCF dipole from RadioWavz and the second is a G5RV+ from RadioWorks. Now I need to dust off the CSV19 Pneumatic Antenna Launcher and let the tennis balls fly.

(3) Once I have my antenna situation under control, I can take the hamshack innards to the next level.

Questions to ponder:

Do I retain the hardcopy collection of QST magazines I’ve been carting around since 2005ish? Starting for the late 40’s, it is a solid collection up to 2000. It takes up a great deal of space and I have the same issues on CD. I’d like to find the collection a new (local) home, if possible.

My new job has me on the road – it would be great to take some gear on the road with me. What to take? Needs to have a small footprint. Sounds like a job for the KX1. What to use for an antenna?

Hamshack Hula

I have been steadily working at getting the hamshack into some sense of functionality. Back in June, everything was looking good. I’d moved everything from the old house to the new house and adjusted for the more “constrained” space that my shack now occupies. I was just about there… and then my household goods from Korea arrived. Lacking time to adequately put everything in its place, boxes ended up getting dumped in the hamshack.

The basement gameroom has been my primary focus for the last two months. We got the new couch, the arcade cabinet is working, the pinball machine needs a bit of work, and the cocktail arcade cabinet is doing great. Now that the gameroom is just about where I want it, I’ve turned my attention back to the hamshack.

Before I moved my workbench to the new house, I should have taken a photo of how I had the pegboard setup. Being gone for year and not using the bench, I had no idea of what I had hanging where. Today I was able to get the workbench in order after spending a few hours sorting through the boxes that had come from Korea.

I’ve also started parting with equipment I don’t need or will probably not doing anything with. The Kenwood TS-930S is now sold. Hopefully the Heathkit SB-220 will soon be sold. Also the Radio Shack HTX-242 that was in the XYL’s car until I upgraded her to a TM-D710A is sold. It is time to get rid of the FT-1500Ms as well. Being a proud ownder of the Yaesu VX-8GR, I can now part with my trusty Kenwood TH-D7A(G). I am continuing to rumage through the shack pulling out what I really don’t need. So far, Craigslist has been working well. I’ll use eBay as a last resort.

So with my efforts, I can actually reach my operating desk, turn on the computer, sit down.

…. now I need to get an antenna up, something more permanent than a Buddipole.

Building a vertical dipole configuration with the Buddipole Deluxe Kit – Mark J. Culross KD5RXT


From the Jupiter Tequesta Repeater Group is a great guide for putting up a Buddipole as a vertical dipole

Mark has some very useful tips:
– Use 1-gallon plastic jugs filled with water to keep the tripod stable
– Put a coil balun comprised of 13-turns of coax, approximately 9” in diameter right below the VersaTee
– Use the “down” leg of the vertical for tuning the antenna

Thanks Mark!

The Lansing, KS Hamshack


Progress has been slow in getting my shack setup at the new QTH in Lansing, KS. I had success running three differnt feedlines from the shack, through a narrow path between the basement ceiling and the main floor to an access box on the houses exterior wall exiting to the side yard. I purchased 50′ coax cables for each run, thinking that 50′ feet might have been too long. However, 50′ ended up being right on the nose, offering me just the right amount of slack in the hamshack and easily reaching the access panel on the exterior wall.

I have unpacked the majority of my equipment that came from Korea and from the old house in Leavenworth. The weather station and VHF/UHF antenna is temporarily mounted on our deck. The plan is to mount it on the chimney, but I am going to need some help getting it up there.

I have a Buddipole up in the side yard and connected it up to one of the feedlines. I fired up the K3 and the radio seems to be working well. Next I tried connecting the Microham USB III digital interface, but have run into some trouble in getting it to cooperate with fldigi. This time, once I get everything working, I am going to copy down all the settings as well as the connections to make sure next time I move it, I don’t have such a steep curve to re-figure out what I had already figured out some time ago.

Some minor problems I am encountering (besides the fldigi/Microham USB III): the weather station gets buggy when I am transmitting on VHF and the weather station software freezes up when I transmit on 40M. The later problem is nothing new and I had limited success trouble shooting the problem by adding chokes to the weather station data display power supply and putting the computer that runs the weather station software on an UPS. The VHF transmission problem is new. I have a 2″ PVC pipe that both the VHF antenna and the weather station are mounted on. I have not previously had a problem with any interference from the VHF antenna, but I will try and move the weather station down the PVC pipe a bit and see if that eliminates the interference issue.

Tasks that still await me: cleaning up the workbench, clearing out the excess boxes that are lying around, organize the QSL cards. I need to establish (and stick with) a system for managing QSL cards. I am pretty sure I have enough cards to get my DXCC, but I have to put the cards in order. I also have a stack of cards to send to the outgoing bureau for the YI9MI operation and a handfull for HL2/AD7MI and HL9MI.