Posts

KH6JRM's Amateur Radio Blog

I spent the night at the radio station newsroom because of a winter storm that threatened Hawaii Island.  For- tunately, only minor flooding spoiled the night.  Mauna Kea has a nice layer of snow and local residents can't wait for the summit road to clear, so they can take home some snow for a holiday snowman.  This is the only place where you can gather snow and surf on a sun-blessed beach all at the same time.  Since I was on news alert, there wasn't much time to spend on amateur radio, other than listening to 2-meters on the news room scanner.  I'll remedy that situation once I close up the news room later today.  At least, we got some much needed rain.  Have a good weekend.  Aloha es 73 de KH6JRM.

KH6JRM;s Amateur Radio Blog

'Just about time to wrap up the news cycle for today in the KKBG-FM/KHLO-AM newsroom. Then, it's home to the shack for some casual operting before calling it a day. I'm still working on the under the house NVIS loop.  The wire has sagged a bit since I attached it to the undercarriage of the qth.  With 142' of 18-gauge wire, the antenna can work any- thing from 40 to 10 meters.  Admitedly, the arrange- ment works best on 40 meters (mostly local contacts out to about 300 miles).  But, with the 450-ohm feed line, I can get some service on the higher bands.  The backyard vertical is still a work in progress.  It works alright, but a few more counterpoise wires will help deliver a better signal.  Like the NVIS loop, the 33' foot vertical is fed with homebrew twin lead and seems to keep the Drake MN-4 ATU and the old Swan 100- MX happy.  Currently, I'm using a single tuned counter- poise wire.  I've garnered many contacts with this im- provised s

KH6JRM's Amateur Radio Blog

The arrival of long-awaited rain heralds the approach of winter on Hawaii Island.  For most of us islanders, there are only two seasons--wet (winter, early spring) and dry (summer, early autumn).  This year has been unusually dry, perhaps a legacy of the El-Nino phenom- enon.  Fortunately, the cooler and drier weather has kept tropical storms and hurricanes away from us.  So, one must count the blessings where they are found.  This is a good time for many of us amateur radio operators to repair, rebuild, and redesign the antennas we use to con- nect to the world.  Lately, I've been working with NVIS (near vertical incidence skywave) antennas--basically low- level loops and dipoles that give excellent 1-300 mile coverage.  These high angle radiators are great for local and state-wide nets on 80 and 40 meters.  Several help- ful articles can be found on the internet.  Try a few.  You may find these skyhooks a lot of fun.  Have a good week-end. Aloha es 73 de KH6JRM.

KH6JRM's Amateur Radio Blog

Now that Thanksgiving is officially over, it's back to the newsroom routine.  The Sunday news cycle is fairly slow, so I should be able to wrap up the basic maintenance and log chores in short order.  After I secure the news room update the meter readings, I'll pick up a few things at the supermarket and head home for some time at the old Swan 100-MX before calling it a day.  Saturday's inverted vee project  went well.  The 40-meter vee has provisions to add 33' of additional wire should I desire to explore the 80-meter portion of the spectrum.  The 55' of 450-ohm twin lead seems to go well with the 4:1 balun and the Drake MN-4 ATU.  I can get a 1.2 to 1 SWR on all bands between 40 and 10 meters. The antenna was simple to make and erect.  Not a DX buster for sure, but it does the job.  You can get other simple ideas for easy to erect antennas in Doug DeMaw's "Novice Antenna Book" by the ARRL.  This book is probably out of print, but any

KH6JRM's Amateur Radio Blog

Somehow I survived the Thanksgiving holiday.  I didn't eat too much at the neighborhood gathering and managed to squeeze in a few hours of cw to round out Thursday. Presently, I'm holding down the fort at the KKBG-FM/ KHLO-AM news room.  Other than the usual meter readings and daily forms to complete, this appears to be a fairly quiet day.  Following the news shift, I'll head home for some antenna maintenance work.  Although the back- yard 40-meter vertical is working fine, I'm thinking of con- verting the old MFJ fiberglass mast into an inverted vee or a delta loop.  Both antennas have served me well in the past. I have just enough room to squeeze in a 40-10 meter vee (33' on  each side).  With 55' of twin lead, the spare 4:1 balun, and the trusty Drake MN-4 ATU, I'll be ready in no time.  I've also fed this arrangement with coax, which largely restricts the vee to 40 and 15 meters.  Purists will shake their heads at this rough and tumbl

KH6JRM's Amateur Radio Blog

Somehow, everyone in my household survived Thanksgiving.  For once, all of us gathered for our neighborhood feast ate moderately.  It seems we had just enough to make a good dinner and to have some goodies to take home.  The best part was the good fellowship of our neighbors, the ex- cellent weather (it rained just after 1900 W), and the relaxing atmosphere provided by the season. I surely needed a break from the news room after this week's disturbing news about Korea and the crippled U.S. economy.  I even got a chance to fire up the old Swan 100 MX for a few contacts after dinner.  I trust that your feast met your ex- pectations.  Enjoy what you can while you can.  Be sure to squeeze in a few hours for amateur radio--it could keep  you sane in an otherwised confused world.  'Til next time, Aloha es 73 de KH6JRM.

KH6JRM's Amateur Radio Blog

Thanksgiving is fast upon us.  It's hard to believe the holidays are coming so quickly.  I guess time seems to accelerate as one gets older.  Despite all the doom and gloom surrounding us, there is still much to be thankful for--the ability to get up in the morning, good health, decent food, and the love of family. Others would add the basic freedoms guaranteed by our founding documents--I agree, but these freedoms are getting eroded daily by the growing crudeness, crassness, and lack of respect for nearly everything these days.  I run into this situation every- day as I prepare and read the news on the commercial station I call my home away from home.  Sometimes, I wonder what kind of society we call these United States.  Every now and then, I feel we as a nation have lost our way and have failed to take responsibility for our own lives.  That's why I retreat into the amateur radio universe after a long day.  Despite the well- known problems on the amateur ba