Category: Station Status

September 28 – 30: W0EQO online; W0ZSW online; WA0TDA online (Thunderstorm outages possible)

Icom IC-7200

The IC-7200 station

W0ZSW is online, but may go offline for antenna work.  The new Windom antenna is in place and the station is working great during this initial testing period. 80 – 6 m operation.  The feedline still needs to be buried, and when that happens the station will be off the air for a time.  Users will note that the new antenna is a great performer, much quieter than the old one because the feedpoint is well away from any buildings with their noise sources.  

WA0TDA is available. Contact me at my ARRL address to request access. 

W0EQO is back online after a network failure. Thanks to Bill, N0CIC, for his help at the station location for his work on the network hardware and for his recent installation of a new APC UPS.  A new router is installed and configured.

Antenna work is ongoing at W0ZSW.  There will be outages.  This work addresses an antenna modification to reduce increased noise levels observed since a temporary antenna was put into place following tree removal.  

Check out the Blitzortung lightning map here. Thunderstorm season has begun!   Storms can pop up quickly, and when they do, the stations may be shut down in order to allow the antennas to be disconnected so as to avoid lightning damage.  There may be little or no warning, but the stations will return to service after the storms pass.  This is just an inconvenience we have to live with during the late spring and summer. 

Remember:  WA0TDA, W0ZSW, and W0EQO all accept multiple users at the same time!  Please do not log off because someone else is already connected.  You will be able to hear both received at transmitted audio at all times.  You can take turns transmitting, assuming you are all okay with staying on the same frequency together.  The first station logged on is the one controlling transmit by default.  Use the “ASK” button to request transmit.  If you want to change the frequency, be sure to text and ask for permission to do so from the other users.  

W0EQO is located in northern Minnesota, near the headwaters of the Mississippi River.  W0ZSW & WA0TDA are located in the Minneapolis – St. Paul East Metro area.

You can browse the worldwide list of Remotehams-enabled stations that are online here. 

Check out the Blitzortung lightning map here.
Please remember that sometimes the stations may need to be shut down with minimal notice when thunderstorms are in the area of the antennas. This is done to prevent lightning damage to the equipment.

Don’t hear anything?  It may be HF propagation.

The IC-7200 station

September update

September 1 marks the beginning of meteorological autumn.  While it is still mostly a summer month, September is when we begin to notice the “look & feel” of the autumn season.  Nights get cooler and days are pleasantly warm instead of hot.  It rains less and lawns get dry.  The sun comes up later and goes down earlier.

For ham radio operators, these changes are notable.  There is less thunderstorm static and generally better HF operating conditions.  VHF ducting events begin fall off as summer heat wanes.  And since it’s no longer hot and muggy out, antenna projects can be resumed.  That is the case here at the WA0TDA QTH, where there are three HF antennas to maintain.

Two of the HF antennas have been checked off this summer’s list.

View from above of antenna base with feedline, radials, and tuner.

It’s not the most tidy installation, but stuff is soldered and it works.

  • The Butternut vertical has been checked out for feedline integrity and found to be in good shape.  An LDG remote automatic tuner has been installed at its base to allow for use across 160 through 6 meters.  This antenna system is not available to remote HF users, as it services my IC-706M2G station, which is my main “in person” operating position.
  • The heavily used inverted vee maypole system in use at the wa0tda HF remote has been completely removed and reinstalled on a new support system.  It frequently provides the best and strongest signals of any of the HF remotes.  Its transmitter is the Icom IC-7200 and the tuner is an LDG AT-200 cabled to the radio so that the TUNE button activates the antenna tuner.
  • That leaves the w0zsw antenna system, which now consists of a 270′ zepp fed with 450 ohm ladder line and a 4:1 current balun.  The station’s radio is a SARA-owned IC-7300 cabled to an LDG AT-1000 antenna tuner.  This station’s antenna system is slated to be replaced this autumn, due to continuing problems with noise and generally poor performance.  The plan is to replace the zepp with an off-center fed dipole, moving the antenna feedpoint far enough from the house to avoid the typical interference from noise sources like switching power supplies, LED & CFL bulbs, and appliances.  In order to do this, new direct-bury coax will have to be laid across a section of yard that includes ornamental gardens and a swath of sod.  The feedpoint will end up in another section of garden with trees and shade plants and be supported by either a handy tree or by a fiberglass push up pole.  I expect the orientation of the dipole to be roughly SW-NE with the two legs to be in semi-inverted vee configuration.  The longer leg will be the farthest from the house and go off to the NE.  I expect to have this last project nailed down by October, because we all know what comes next.

W0EQO Networking issues resolved

Moving “up north” to station w0eqo, we had a number of issues building with our internet connectivity. The system had been serving up internet to the entire scout camp this summer, which meant many devices and very heavy use. Even so, our data demands are very modest and the system managed to pretty much hang together with only a few interruptions until late summer after the regular camp sessions wound up and storms went through the area. Following one storm event, the station was down and Bill, N0CIC, found that an elderly Netgear router had expired – by which I mean “He’s dead, Jim” expired, not just sleeping.  Probably this was the consequence of power surges when the storms interrupted the AC supply, but in any case a new Netgear was installed and configured and… the system still didn’t work.  It turned out that the internet provider’s modem had reset and had forgotten everything it knew about the ports we needed forwarded to the Netgear.  Tech support helped us out, and everything was working again until the modem decided it was time for a firmware update after which we went though the same exercise again.  As this was going on, I got sick and was out of the loop for awhile, but things are running again and everything seems stable.  This sort of thing can happen to a double NATted network, one in which NAT – Network Address Translation – is allowed to take place in more than one network device.  I’m not sure exactly where we ended up, but as long as it’s working now…

And speaking of network problems:

Station w0zsw, here at the wa0tda QTH, was reliably reachable on the internet until our Eero mesh network decided it was time for a firmware update.  The resulting disruption caused our older Netgear legacy network downstream of the Eero to be unable to reach the necessary ports for the RCForb host software to get through the firewall, so bingo, no w0zsw.  Worse, when the port forwarding was restored, another device on the network and the Netgear router decided they had to continually fight it out for the same internal IP address.  That meant w0zsw was available sometimes and not other times.  A few strategies were available, but I decided to bite the bullet and move the w0zsw host PC to the main Eero network and put it behind just one NAT device.  That has restored reliability.  The wa0tda remote was already on the newer Eero system and was never affected.

So there we are.  I’ll let you know how the antenna work goes.

Thunderstorm season begins

lightning

Thunderstorm season has begun!  Storms can pop up quickly, and when they do, the HF remote base stations may be shut down in order to allow the antennas to be disconnected so as to avoid lightning damage to the radios, host computers, and computer networks. 

There may be little or no warning, and the stations will return to service after the storms pass.  This is just an inconvenience we have to live with during the late spring and summer.  You can check the WX at the WA0TDA station to see what might be going on. High dewpoints (usually over 60 degrees F) are associated with unstable air and possible thunderstorms. 

Report a problem: wa0tda@arrl.net

W0ZSW returns to service after antenna change

 

The W0ZSW station with IC-7300 & LDG tuner

W0ZSW was offline for antenna maintenance and host PC updates.  It has returned to service with an inverted vee maypole antenna and has been tested on 160, 80, 40, and 20 meters. Antenna tuning may take longer than usual on frequencies that the LDG AT-1000 PRO tuner has not already memorized. Frequencies that it “knows” will tune almost instantly. Please let me know if you run into any problems with antenna tuning.

The old antenna system will be taken down soon and reconfigured later this summer.  It had suffered decreased performance after it had to be partially taken down and moved for tree trimming last year. Plagued by a high noise level, it was clearly underperforming on receive and would need to be relocated.  There is no particular timeline for this project, nor have I decided on exactly what will replace it.  However, the inverted vee maypole, formerly service the WA0TDA remote, is working very well and is much less noise-prone because it is well away from the house, fed with buried coax.  Users should notice quite an improvement.

The WA0TDA remote is still on the air with an enhanced Butternut HF9V vertical antenna, ground mounted with buried radials and fed with underground hard line. It is also an excellent antenna system, but users will notice the different characteristics of a vertical antenna.

Unfortunately, this means I have no antenna for my IC-706M2G digital station at the moment.

March 29 – First thunderstorm outage of the season

Stations WA0TDA & W0ZSW went offline late in the day on March 28 and remained out of service on the morning of Sunday, March 29.  This was an orderly shutdown to preserve the station hardware from lightning damage as thunderstorms moved through Minnesota.  Lightning strikes were detected within 1.3 miles of the stations.

Both stations will return to service before 9:00 AM CDT Sunday, by which time the antennas will have been reconnected and the systems rebooted.

This is a good time to remind users that shutdowns for thunderstorms may occur without notice now that the season has started.