The weather was too nice to sit inside. In the low 70′s with a very slight breeze so after church and a short nap I headed out to try my hand at giving out points in the QRP ARCI Homebrew Sprint. My startup was delayed by curious folks in the lakeside park wondering what in the world I was doing and how I got that string and wire so high up in the nice tall pine trees!
Next to the Lake in the Sun
I checked 40m first with an inverted L end fed half wave and my trusty Stuner (KI6S Stu’s kit) and decided to change to 20m after not hearing much activity. 20m was decent and there were a few of the big gun qrp contest regulars shooting it out. N4BP, K4BAI, K0ZK and a few other were running stations while the little guys like me were mostly doing Search and Pounce. Hey it is fun even if you cannot run a frequency, right?
Sun went down about 1745 local and the mosquitos were quick to find the hole in my hat and attack. This time I remembered the repellant and after a few bites I took time to spray my hat and hair and the backs of my hands. The temperature dropped fast and my hands got a bit stiff pounding out the morse code on my J-47 straight key. 50 degrees is cold for a Florida evening. The darkness also brought out the raccoon family and it was fun to shine my flashlight on them and watch them stand on their hind legs and stare into the night wondering what the funny guy was doing in the dark.
Sun is almost outta sight
40m came to life after sunset and I finished with a respectable 20 contacts for about 3 hours of operation and was able to give some Christmas contacts to the needy fellow contesters who were chasing another certificate. What a great way to spend the afternoon… by the lake in the sun and outdoors playing radio.
Wow! Great way to bring together a lot of ham radio ops on a Saturday using all sorts of technology! Way to go! QRPSPOTS.COM is normally used by QRP ops to spot each other when we are out operating portable or to alert others of band openings. It was ALIVE with reports and updates from all over the USA and even a few DX ops adding input too! In addition, several QRP reflectors were buzzing with updates and info. What a great community effort this turned out! Congrats to all and thanks to QRP ARCI for helping get the word out.
Iowa High Altitude Balloon Project
One of the 4 States QRP bunch, Terry WA0ITP, provided the 20m beacon again and has some great info on his informative website.
But for me, the coolest thing was listening in on the streaming webcast of VE3EN and his wonderful IC-7700. Sure wish I had thought of recording a bit or doing a screenshot to share here. But what a treat to listen in and hear the beacon’s signal right up until touchdown. Thanks Kevin for a fun way to eavesdrop on this event since the lawn mowing crew took over my condo’s yard and didn’t allow me to put an antenna out today. There is a ton of info and creative website construction on Kevin’s website and it is worth spending some time looking at the solar cycle data.
Congrats to the team for a successful event today and for bringing so many hams together for a good learning experience and something out of the ordinary. Well done W0OTM, well done indeed!
The QRP-L reflector has been buzzin’ with the news and chatter (positive and some negative btw) about a new project to design and build a new transceiver for QRP HF use. YAHOO!
K8IQY Style Test Setup
What I love the most about this is that the QRP community is able to contribute ideas, resources and participate much like the Open Source software community operates. This could really be a fun project for our Central Florida QRP group. After all, we are not that far from Diz W8DIZ who is facilitating and coordinating this project.
If you like to build, experiment and try some QRP operation with a new rig… you should tune in and join the fun.
This is the last week to vote in the poll on my blog for the best US QTH for ham radio… Here’s the standings as of Sunday at 2100 EDT:
You can cast your vote by following this link!
72,
Kelly K4UPG PB #173
Here’s an email from my good friend and cohort in the Central Florida QRP Group. Jim wanted to share his latest mods for the Rockmites and some thoughts on the NEScaf filter. I think you will enjoy his notes too …
Kelly,
I thought I would bring you up to date on my latest project. I just finished a Small Wonder 20+ and used it on the Flight of the Bumblebees. I found my earbuds a little weak on audio output and the IF bandwidth of the SW20+ a bit wide for my liking. I read the specifications on the NEScaf filter offered by the New England QRP group and decided that that would be the best solution to my problem and be usable on other radios as well. I ordered, built and installed the NEScaf board in a TenTec TG-24 enclosure. I tried it on the SW20 and it sounded like a viable solution.
The Rockmite and NEScaf filter in Ten Tec Enclosures
I also have a 40 Meter Rockmite in a TG-24 enclosure and decided I would see how well the RM/NEScaf combination sounded. The Rockmite, of course, uses a DC receiver and the bandwidth is determined by the upper response of your ears… My RM sounds like about 40 khz wide, hears the whole band for me as my response is in the upper tens of kHz. Yes, I know, at my age 69 it shouldn’t be but is. Been tested. At any rate suddenly the Rockmite bandwidth is manageable. I had some audio artifacts, whistles and the RM sidetone would drive the NEScaf into cutoff which only a power cycle would clear. I googled the problem and Charlie KE2SP advised lowering the NEScaf input Z with a 10 to 47 ohm input load. I installed a 27 ohm resistor on the input connector and suddenly all artifacts, whistles and sidetone problems disappeared. WOW, the RM is really sounding great! Except the RX/TX was very low. I measured it at 500 cycles and the NEScaf would not tune down that low…
Closer Look at the Finished Rockmite and NEScaf
After considering several approaches to the problem and considering that the RM crystals don’t oscillate on exactly the QRP frequencies, I settled on completely revamping the RX/TX method used in the RM. Using the RM40 as a test bed, I removed D5, D6, R9 and R10. I purchased 2 Murata trimmers( TZ03 Series) from Skycraft, our local Surplus emporium, and installed them in the holes for D6 and D5, R9 combination of holes. I had to cut a small run on the right side (antenna connector side) to isolate that pad from Vcc and jumper to two trimmers together… I also had to drill out the pads to accept the trimmer leads. The Fet Q2 does a great job in switching to second trimmer in and out for the offset. The alignment was not difficult but I recommend using a freq counter connected thru a times 10 scope probe to the physical top of R5 (base of Q5). Don’t have to key the Tx to see the freq… I set the trimmer in the D6 position for the higher freq (7.030750 Mhz) and the other trimmer for the lower frequency (7.030000 Mhz. The trimmers I use are available at Digikey. I used the Red colored model (4.2 to 20pf, N750) but the Blue colored (2.7 to 10pf, NPO) might have been a better choice. These guys are Digikey p/n 490-1971-ND and are $0.43 each… I also changed the RM40 volume control from an audio control (1 Megohm) to a RF front end attenuator control (1.5 kohm) and there is a noticeable improvement in the overload and broadcaster breakthru problem. I strongly recommend these changes. If you can build the RM you can certainly modify it… If you break it, build another… I plan to make the same modification to my RM80. (CLICK THE THUMBNAILS for larger view)
Rockmite Mode Closeup 1
Rockmite another closeup
The Inner Workings of the NEScaf and Rockmite
How did it work? Well, the RM/Nescaf stack is now a real radio not just a toy. I worked WD8MHT Raul in Waynesville, NC one morning this week and we had a great conversation. He was 569 to me and I was 439 to him. His TS570 was working hard but copied me no problem. The amazing thing for me was that there was a really strong signal at 700 cycles and Raul was about 200 cycles higher. I tuned the Nescaf center freq on Raul and sharpened the bandpass and turned up the volume and he was armchair copy the entire QSO… WOW, not a struggle… I have since used the NEScaf on my SW20+ and yes, it works great…
I have attached a couple of pictures of the stack and the innards of the RM for reference. The switch on the front is for a future expansion.
72
Jim
K4AHO
Various QRP related email reflectors and lists are full of chatter about the Flight Of the BumbleBees (FOBB). Comments about the CW being too fast and the weather being too hot at this time of year make it sound like a broken event. IMHO it is far from being broken! It is probably the premier QRP event of the year. And I say, if it ain’t broke… yep, you guessed it, don’t fix it.
Sunday the bands were full of QRP ops, both home based and portable, so the activity really did make a BUZZ despite band conditions that have not been all that helpful to hf qrp contacts. The weather was HOT, but hey, find some shade, altitude or water and go for it. Historically this is the time of year for this event and as others have commented, it keeps our activity up during the summer time when vacations and mowing the grass take their toll on ham radio activity.
As far as fast cw, I’m not fast (not even close hi hi), but it sure is fun listening to the buzz on the bands rather than QRN and a high noise level with only a few weak signals. Certainly I am not a hard core contester. My cw skills are still in need of practice, but isn’t that what events like this provide? I often have to listen multiple times to get the callsign and info but that repetition and practice pushes my speed and confidence level up every time I try. After listening to a fast op several times I have the info I need and then I jump in and have fun making a contact at speeds faster than my comfort zone. Most of us slow guys can send faster than we can receive, right? Come on in, the water is fine, and FUN!
My XYL, Connie and I drove over to Honeymoon Island State Park on the Gulf Coast in Dunedin, Florida. This is a very pretty beach, not overly crowded most of the time and has been one of the top rated beaches in the US for several years. The weather cooperated, there was no sign of the BP oil spill that has run so many tourists to other locations, and we snagged a primo spot to operate right next to the water.The only negative, if you call it that, was that the view was sometimes distracting, but sure was enjoyable.
K4UPG Distracting View from my FOBB 10 Site
K4UPG Honeymoon Island FOBB Site July 2010
My trusty Sierra and Buddistick provided plenty of action so I never switched over to my mini-bac Delta Loop backup antenna. I also stuck to 20m the whole contest since 40m has been in such poor condition here in Florida lately.
One of the great things about these events is the leveling of the playing field. It is fun to contact the guys that write the articles, create the websites and design the equipment that we use for our hobby. My score was modest at 26 QSO’s, 18 Bumblebees and 17 states and provinces but it was one fantastic day of activity for me! Being able to connect with the big guns of QRP was a thrill too!
W8DIZ Stops By to say Hello to K4UPG
K4UPG search and pounce FOBB 10
For me, one of the highlights was when W8DIZ rode over to meet me as I was setting up my site. Diz lives about 3.5 miles from Honeymoon island and is a regular bicycle visitor of this great beach location. I’ve been a customer of his toroid and kit business and have benefited from the info he has shared, not to mention being one of the movers and shakers of the Famous Flying Pigs QRP group. Diz I was honored that you took time out from a busy family day to swing by and say HI! Thanks for the help getting our screen house up too!
Thanks to Adventure Radio Society and the guys that put this event on for all of us. We appreciate the effort it takes and you deserve the very best of 73′s from all of us.
Kelly K4UPG BB #10
On the road again… happy feet dance! K4UPG is loaded and ready for a good day by the lake operating the QRP To The Field event for 2010.
K4UPG ready to roll to QRP TTF site
Loaded with ALL the options!
Then came the wind knots in the antenna launching rig! I wanted to get a doublet up as high as possible. Took nearly 2 hours to get my antennas up in the air. LESSON LEARNED: It is really helpful to have another person along to help untangle all the knots that wire and string seem to make all by themselves. Getting the antenna up quickly is a key to portable ops. Grrrrr!
One of several tangled messes that delayed the antenna deployment
LESSON TWO: After a delayed start, I spent a lot of time moving my portable table to keep out of the direct sun! With temperatures in the upper 80′s it was HOT and direct sun causes my Sierra to drift a bit which makes qso’s more difficult. Need to get a sun shade setup and not waste time moving my position.
The band conditions were pretty poor and I did not hear as many stations as I had hoped. The ones I did work were tough going and seemed like others could not hear me responding to their CQ’s. I didn’t even hear a lot of Florida QSO party ops, but sounds like others that were farther away did. In 5 hrs I managed three whole qso’s with TTF stations. I did hear one Polar Bear– Martin operating as VA3OVQ but he could not hear me when I replied to his CQ.
Warning sign about 30 feet from my operating site!
It was fun to be outdoors and playing radio! I did not get eaten by our neighborhood gator either! Maybe next time out will be better contact-wise.
These last two Polar Bear adventure radio sprints in January and February was quite an experience operating QRP (5 watts or less) outside in the snow. I never thought I would never do anything like this in freezing weather. There I was knee deep in snow; with a wind chill around 15 degrees, under an open air shelter at Cobus Creek Park, located in the northwest corner of Elkhart County in January. I was invited by Bob, KB9IVA, who said it would be fun. So I got my portable gear and winter parka and headed out to the site. When I arrived Bob wasn’t there. I got out of the warm car and looked over the snow covered picnic table. The bright sun reflected off the stone on the side of the building helped warm things up a bit.
First one gets the warmest spot!
Then the sun disappeared and it became colder. The heated outhouse was open so I warmed up for a few minutes.
QRP in the parking lot!
It was too cold for me to set up outside so I operated in my mobile on 40 meters. Bob arrived in a snowmobile outfit with a bag full of tools, and his ICOM-703 and MP-1 portable all band vertical antenna.
The antenna would not tune properly so I ran 25 feet of RG-59U coax from my mobile antenna to the picnic table. Then the portable battery pack ran out of juice. So I took my emergency car starter battery and hay wired a connection to the ICOM-703 and we were back on the air. When it’s cold radios and batteries don’t work properly. Wires become stiff, batteries quickly discharge, and the straight key was difficult to use. Not to mention your exposed fingers feel frostbitten. I had forgotten my gloves but you couldn’t send CW with them on anyway.
Our vertical in the park!
Cold stiff hands on a very cold key! YIKES!
I was more prepared for the February sprint but didn’t count on blowing snow. Participating in this sprint was, Bob, WA9S Keith, and Steve KB9ZVJ and I Ni9Y. Keith arrived late and operated inside his Jeep. I Made a half-dozen contacts from Utah to Colorado to the East coast with my HB1-A 4 watt transceiver using a 50’ end-fed wire only 27 inches high. Then the wires snapped off my battery pack. So we quickly repaired the pack with a new connector and we were back in business again.
2 Cold QRP Guys operate in the Feb 2010 PBMME
Bob had his IC-703. His headphone band cracked in two in the cold. Bob’s straight key was almost brittle and hard to use with gloves on. Steve operated SSB with his Yaesu rig, powered by a riding mower battery, feeding a sloping 20 meter dipole about 5 feet high.
A snow proof antenna for 20m
Last man sending!
It was getting too cold for me so I packed up and left as the snow began to really come down. Steve saw me packing so he packed up and so did Bob. Keith stayed behind moving to the picnic table and made more contacts in a small blizzard. Then Park Ranger paid a surprise visit to find out what in the world was going on. The ranger was satisfied that we weren’t suspicious characters after Keith explained the situation. The ranger failed to notice Keith had wrapped his antenna rope around the door handle on women’s entrance to the outhouse. There was no way anyone could open that door. The ranger probably thought we were a bunch of nuts playing radio in the snow. It was fun and we probably will do it again next season. Only next time I will be more prepared for polar bear weather. Oh yes I forgot to say this was the POLAR BEAR MOONLIGHT MADNESS event. You can read all about on their website http://www.n3epa.org/Pages/PolarBear.htm. Polar Bears all over the country and in Europe participated in the madness. The final polar bear event was held March 20th but I took a pass on that one because all the snow is gone so it wouldn’t be as much fun operating in warm spring weather!!!
The MEN OF ADVENTURE will soon take off again. Barry, WD4MSM says “QRP To The Field” has just been announced for 2010. He recalled that we took part in the 2009 version that had as its theme “The Great Depression.” We operated from the WPA site of Monkey Island in Mishawaka (the bridge to Monkey Island was built by the WPA).
This looks as if it might be an ideal outing for us. Saturday, April 24, 2010 Spicer Lake Nature Preserve http://www.sjcparks.org/spicer.html Small picnic shelter available; Trees for antenna support if needed; Restrooms (heated and immaculate) just steps away; Ample parking for hundreds! Just minutes from South Bend; Plenty to do for family members and visitors (trails, grills, visitor center, two lakes, etc.); Handicap accessible trails and parking immediately next to the suggested operating position.
You to can join the MEN OF ADVENTURE even if you don’t have a QRP rig. Just show up to learn about portable operation and how to put up antennas where they don’t belong. Who knows maybe you to will be just as nuts as the other members of the group are? Present company accepted.
That’s it for this edition.
73’s Dan, email DAN
p.s. Consider operating the special event KØS Strange Antenna Challenge Special Event — May 29-31, 2010. Start Date & Time: Saturday, May 29, 2010, 1000Z End Date & Time: Monday, May 31, 2010 at midnight (local time zones) This is not a serious event. We are all out here for fun! K0S will employ out-of-the-ordinary antennas to promote Amateur Radio and making do with what might be available during an emergency. Individuals and clubs may participate as “satellite stations” by using anything but wire or pipe for a radiating element and adding “/K0S” to their call signs. Details are on the KØS, Strange Antenna Challenge Web site. Strange antennas used in past events, dating back to 2002, have included folding chairs, paint easels, ladders, tape measures, dog kennels, fences, cots and chicken fencing with a trampoline as a ground plane. “More people share in the fun each year,” says Erik Weaver, N0EW, a Strange Antenna Challenge founder. “I hope you give me a call this year with your very own strange antenna. Now let’s play radio!”
45F a bit of sun and a lot of wind! Today I escaped being selected for jury duty so opted to get the oil changed in my car! I called and my shop was not too busy and said, “come on down!” So I packed my 30m SST, BLT+ tuner and accessories and took off. Instead of sitting in the waiting area and reading out of date magazines and watching silly game shows, I walked out to the parking lot and threw some wire into a couple small trees. I only got the main 46 feet wire up about 15 feet on one end and sloped it through another small tree and out to my camping table. I ran a counterpoise of 23 feet to the same small tree and hooked up my trusty BLT+ tuner.
My Oil Change Parking Lot QTH for 30m
A quick tune found a couple week signals. I tuned the antenna a bit, called CQ with no luck, then heard a decent 579 signal calling CQ. Bill, NG3O in Columbia, MD replied and although I wasn’t strong (539) he thought he could copy me. He sure did a great job and we enjoyed a nice QSO for almost 30 minutes. Sure is pleasant to work a good fist without any QRM. He said I was his first Oil Change Parking Lot QSO.
A few minutes later, I connected with Rudy, W8RJW in Columbia, SC. He was a strong 589 and gave me a 559. We had a nice qso for several minutes too. It was a fun way to pass the time while I waited on my car maintenance to be done.
The band got pretty quiet afterwards and though I heard a few more stations, it was time to pull the plug, take down the wire and go home. I think I have figured out a new way to pass time when the opportunity is present. Hope you will give it a try too!
Kelly K4UPG
Today was Polar Bear Moonlight Madness Event! I wore my new Polar Bear hat and it brought me luck. I setup in the 3 story prayer tower at Pioneers, my ministry headquarters. That kept me out of the weather and got me up in the air a bit which helped my W3EDP antenna do its thing.
Pioneers Headquarters Prayer Tower on left
Bands were pretty good and there were a lot of QRP signals out there as well as SKCC and FIST ops. I worked a few of my fellow Polar Bears:
Then I worked a few non-PB’s and had some good QSO’s with SKCC members.
Next weekend is the FYBO and the Central FL QRP Group will be operating its first multi station- multi operator event at Sylvan Lake Park in Sanford, FL. If you’ll are down this way look us up. If not, give a listen for K4AHO which is the call sign we will be using.
Here’s to many good QSO’s. Thanks to all the good ops with good ears that heard my peanut whistle 2 watts today.
Almost time for another Polar Bear Moonlight Madness Event! Grrrrrrrrr! This coming weekend, Saturday 14 Nov 2009, Polar Bears will be clamoring for position in the ice field and slammin pawerful signals into the air. Bring a rig and join us.
K4UPG Bear pounding brass and gittin' ready for the PBMME!
K4UPG Bear #173 is excited because some other bears is gonna be gathering with the Central Florida QRP Group which is scheduled to meet that same day! So come on out to the Cracker Barrel in Sanford, FL for some sammin pancakes or sumpin else at 0730 EDT breakfast time. If you cannot make the feeding, then meet up with the rest of us bears at Sylvan Lake Park in the A Pavillion area at around 0900 EDT. Ya’ll come, hear??? Grrrrrrrrr!
