Happy 2020!
Let friendships deepen, records made and ham radio adventures abound!
Tuesday, December 31, 2019
Thursday, December 26, 2019
Christmas Radio Related Present
This year, I didn't ask Santa for any radio goodies, but under my tree I found a radio accessory item. I could use a collapsible wagon to haul microwave gear from the car to a transmitting location. For example, I could have used it from Eagle Roost at Pere Marquette State Park near Grafton, IL This should do the trick!
Wednesday, December 25, 2019
Saturday, November 16, 2019
BARS/SLAMS November Lunch
Earlier this afternoon, BARS and SLAMS members enjoyed good food and good company at the Chandler Hill Winery near Defiance, MO. The winery is in the heart of St. Charles County's Femme Osage Valley and the scenery is beautiful. Our November meeting agenda was to work out our meeting calendar for 2020. We had a good turnout, but we missed our friends who couldn't make it.
Pictured from the left: Rich N0PQU, Bob N0IS, Harry WA0CNS, Herbert AF4JF, Sam W0PCE, Ron KO0Z and Debbie KC9ULA.
Some of us are taking advantage of the DUBUS article and surplus equipment on 122 GHz! We are also getting involved with light communications. Dr. Sam Green W0PCE has a great deal of professional experience with optics and light communications. Harry WA0CNS has a working light transmitter and receiver! Herbert, when he has some spare time, is experimenting at the local maker space and he fabricated a 3D printed horn for light communication
Herbert AF4JF's 3 D printed light communications horn
Ron KO0Z has an article published in the November issue of CQ that features BARS/SLAMS activities. It was great seeing everyone today. For more details please check out the SLAMS BLOG site at http://slams-stlouis.blogspot.com/
Pictured from the left: Rich N0PQU, Bob N0IS, Harry WA0CNS, Herbert AF4JF, Sam W0PCE, Ron KO0Z and Debbie KC9ULA.
Some of us are taking advantage of the DUBUS article and surplus equipment on 122 GHz! We are also getting involved with light communications. Dr. Sam Green W0PCE has a great deal of professional experience with optics and light communications. Harry WA0CNS has a working light transmitter and receiver! Herbert, when he has some spare time, is experimenting at the local maker space and he fabricated a 3D printed horn for light communication
Herbert AF4JF's 3 D printed light communications horn
Ron KO0Z has an article published in the November issue of CQ that features BARS/SLAMS activities. It was great seeing everyone today. For more details please check out the SLAMS BLOG site at http://slams-stlouis.blogspot.com/
Thursday, November 7, 2019
New 122GHz station
Do you want to become QRV on 122GHz? You can buy a kit that uses a chip that does most of the work (click here).
It seems to be doable and not too expensive!
It seems to be doable and not too expensive!
73 Herbert
AF4JF
Saturday, October 12, 2019
BARS October Lunch
In spite of a hectic work week, Herbert AF4JF and Harry WA0CNS made the 63 mile trek from EM48 to Mt. Olive, IL in EM59 to attend lunch at the Route 138 Café. The café is located on the northeast corner of the intersection of IL Rt 138 and Old US Route 66. Ron KO0Z and Debbie KC9ULA made the 33 mile trek from Girard.
Thursday and Friday brought rain, but Saturday dawned with a bright sun and frost on the ground. Fall is here. Earlier it was decided to make breakfast a lunch, which worked out nicely. The menu wasn't bad and food was tasty.
Ron wanted to show his powerpoint presentation to Herbert and Harry, but he couldn't remember his laptop's password, so he only talked about it. He had to reset it when he got home. Some of the powerpoint photos were on his phone, so Harry and Herbert got a "preview" of show. KO0Z showed it to the Macoupin County ARC K9MCE and it was well received. In fact, he's giving it again to the Sangamon Valley Radio Club in Springfield in December. There are two hams in the area who are seriously interested in joining our ranks!
We discussed our ARRL 10 GHz and Up contest, second weekend propagation results. Rain scatter was a determining factor during the last three contacts from our locations. Herbert AF4JF said the 2 way QSO from EM48dv, 63.8 miles away, sounded like a normal signal with no rain scatter. According to Google Earth the squint angle is 266 degrees. My line of sight from Eagle Roost EM48rx is 265 degrees. Perhaps knife edge propagation played a factor. There's also the distinct possibility that my measurements could be off by a hair.
The last Q of the day from EM38xw, 80.8 mile is at an angle of 269 degrees. Rain scatter provided the propagation. Ron and Herbert made the Q, but park visitors came to look at the view, right in front of the Ron's microwave dish, so he waited until they left before transmitting again. Harry WA0CNS tried to make the Q, but propagation wasn't there. Herbert AF4JF tried again, but neither he or Ron could hear each other. The T-storm had moved further north.
Recalling the fun we had during the contest, one of the take-aways was to build up a few W1GHZ Cheap 10 GHz transverters and lend them out during contests to get more rovers! This will become a BARS wintertime activity.
Other discussion centered around the Dubus 122 GHz transverter. Herbert purchased the system from the designer in the land down under. Ron's tempted to purchase one, but he has other expenses and he wants to focus on his 24 GHz transverter.
Harry WA0CNS is well on his way building a light communications system. He has an optical sensor, receiver board, lens and tripod built!
Harry WA0CNS with his light communications rig
The optical sensor is magnified through the lens at its focal point
Harry's breadboard optical sensor receiver board
A closeup of the optical sensor
Saturday's meeting was a good one. It was great seeing each other. SLAMS has a breakfast next week. We plan to informally meet at the Halloween Hamfest.
Thursday and Friday brought rain, but Saturday dawned with a bright sun and frost on the ground. Fall is here. Earlier it was decided to make breakfast a lunch, which worked out nicely. The menu wasn't bad and food was tasty.
Ron wanted to show his powerpoint presentation to Herbert and Harry, but he couldn't remember his laptop's password, so he only talked about it. He had to reset it when he got home. Some of the powerpoint photos were on his phone, so Harry and Herbert got a "preview" of show. KO0Z showed it to the Macoupin County ARC K9MCE and it was well received. In fact, he's giving it again to the Sangamon Valley Radio Club in Springfield in December. There are two hams in the area who are seriously interested in joining our ranks!
We discussed our ARRL 10 GHz and Up contest, second weekend propagation results. Rain scatter was a determining factor during the last three contacts from our locations. Herbert AF4JF said the 2 way QSO from EM48dv, 63.8 miles away, sounded like a normal signal with no rain scatter. According to Google Earth the squint angle is 266 degrees. My line of sight from Eagle Roost EM48rx is 265 degrees. Perhaps knife edge propagation played a factor. There's also the distinct possibility that my measurements could be off by a hair.
The last Q of the day from EM38xw, 80.8 mile is at an angle of 269 degrees. Rain scatter provided the propagation. Ron and Herbert made the Q, but park visitors came to look at the view, right in front of the Ron's microwave dish, so he waited until they left before transmitting again. Harry WA0CNS tried to make the Q, but propagation wasn't there. Herbert AF4JF tried again, but neither he or Ron could hear each other. The T-storm had moved further north.
Recalling the fun we had during the contest, one of the take-aways was to build up a few W1GHZ Cheap 10 GHz transverters and lend them out during contests to get more rovers! This will become a BARS wintertime activity.
Other discussion centered around the Dubus 122 GHz transverter. Herbert purchased the system from the designer in the land down under. Ron's tempted to purchase one, but he has other expenses and he wants to focus on his 24 GHz transverter.
Harry WA0CNS is well on his way building a light communications system. He has an optical sensor, receiver board, lens and tripod built!
Harry WA0CNS with his light communications rig
The optical sensor is magnified through the lens at its focal point
Harry's breadboard optical sensor receiver board
A closeup of the optical sensor
Saturday's meeting was a good one. It was great seeing each other. SLAMS has a breakfast next week. We plan to informally meet at the Halloween Hamfest.
Monday, September 23, 2019
ARRL 10GHz And Up, Part 2 by Herbert AF4JF
There is not much to add after reading Ron's posting about Part 2 of this year's ARRL 10GHz Contest. Ron KO0Z spent the day on a hill top in Pere Marquette State Park above the river in Illinois while Harry WA0CNS and Herbert AF4JF drove I-70 west from Saint Louis to EM38 near Kingdom City (the only location outside EM48 that we have visited that day).
First of all, my travel companion Darcey was present. She is a true HAM radio dog. Maybe I should try to tech her CW some day:
How did we get the idea to put someone on the Eagle's Roost and have rest of the team driving the I-70 West as far as we can hear each other? That's simple - our numbers dwindled over the years. By saying that, I mean that there were more HAMs QRV on 10GHz in Saint Louis area just a few years ago. In addition to that, some of our colleagues whom we usually work on microwave bands during contests decided to go the the Great Lakes in the North to participate in the contest from there. We have tried several strategies for such situations before and ended up with this "leap frogging" and driving around concept. See also our other postings on this blog here and here.
Ron's position on a cliff above the river turned out to be excellent, we have made a QSO from every stop. Even better, we extended our trip way further out to the West than originally planned. It wasn't always easy to find a spot to set up without facing either corn field, a building or even a property owner curious about our activities (happened twice, means 20% of our locations).
Ron's posting shows some of our locations in fast food parking lots, behind restaurants etc. Following picture shows how we set up at a gas station:
There is another picture with me masking as a cellphone company worker behind one of their towers in a church parking lot (note the magnetic ARRL radio communications sign on my car):
Last picture to share today shows the side road next to I-70 in EM38 where we set up. The view is actually towards West (I was taking a picture of my dog, not of the view) but the other direction looked exactly the same. This was the same location we used years ago, described in another posting:
So, that's about it. We have spent a day with our precious hobby, got some sunburn again (believe it or not, there was some sunshine between the rains too) and found some locations to plan with for the contests to come.
73 Herbert
AF4JF
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Sunday, September 22, 2019
I-70 10 GHz Odyssey, Round 2 of ARRL 10 GHz and Up Contest
Saturday's forecast for the upcoming 2019 ARRL 10 GHz and Up contest didn't look very promising. Saturday called for a 40 to 50% chance of rain and T storms. Sunday was more bleak with a 70% chance of storms. Saturday was looking like the better choice. Herbert AF4JF, Harry WA0CNS and Ron KO0Z decided on Friday evening, after Herbert's work related flight Boston returned, to see what the morning's actual weather was like and to try and set up by 9:30 am.
Saturday's forecast was looking a bit better. Ron left his Girard, IL QTH by 7:15 am for the two hour trek across country roads to Pere Marquette State Park EM48rx overlooking Calhoun county, IL; western St. Louis county, MO, all of St. Charles county, MO as well as parts of Lincoln, Warren and Calloway counties in MO!
Ron KO0Z was anxious to activate Eagles Roost scenic overlook at Pere Marquette State Park, EM48rx. It has an unobstructed 120 degree view that extends from azimuth headings of 145 to 265 degrees from an approximate elevation of 800 feet!
Pere Marquette State Park's Eagles Roost scenic overlook offers a 120 degree panorama at an approximate elevation of 800 feet!
Ron KO0Z QRV on 10 GHz, from Eagles Roost EM48rx looking southeast towards Spot #1
Close up view of KO0Z's rig at Eagles Roost EM48rx
Eagles Roost sign was quite the draw for visitors which, at times, delayed KO0Z from making Qs
For round 2 of the contest, KO0Z would be the stationary station at EM48rx and AF4JF and WA0CNS would be the mobile, "shoot and scoot" operators, basically traveling west along Interstate 70.
By 9:30 am, Ron KO0Z was QRV from Eagles Roost. He could hear the WB9PNU beacon roaring no matter in which direction the dish was pointed. Telemetry indicated the power output to be 1.2 watts, 12.9 VDC, enclosure temp of 84.3 degrees F and the PA temp of 111.8 degrees F at 10:06 am.
The WB9PNU/b roared into EM48rx no matter where the dish was pointed southeast of Eagles Roost, EM48rx!
AF4JF and WA0CNS were QRV at a church, on a hill in western St. Louis county EM48sr, Spot #1 and at 9:48 and 9:50 am both of them were in KO0Z's log with 5x9 SSB reports. A distance of 17.8 miles (28.6 km).
Harry WA0CNS and Herbert AF4JF QRV from Spot#1, west St. Louis county EM48sr, a church parking lot.
Herbert AF4JF, EM438rt, Red Lobster in St. Peters, MO looking towards EM48rx
O'Fallon, MO EM48pt was Stop #3 next stop along the I-70 10 GHz odyssey, a distance of 14.6 miles (23.5 km). Strong, CW signals were present on both sides of the QSOs. Herbert and Harry were worked at 11:17 and 11:18 am KO0Z received a 579 report at EM48rx. Eagles Roost was proving to be a good operating location.
Harry WA0CNS along with Herbert at Stop#3, O'Fallon, MO EM48pt
Spot #3 O'Fallon, MO
Ever moving westward, Wentzville EM48nt became Spot #4. at 12:05 and 12.07 pm, both AF4JF and WA0CNS made a QSO with KO0Z on CW with good reports both ways for a distance of 21.3 miles (34.3 km). Herbert and Harry took a lunch break and Ron ate a left over hamburger sandwich along with an apple.
AF4JF and WA0CNS QRV from Spot#4, Wentzville, MO EM48nt
Lunch break for KO0Z...a hamburger sandwich at EM48rx.
By 12:50 and 12:52 pm, AF4JF and WA0CNS were back on the air from Wright City, MO EM48mu, Spot #5 with 599 CW signals to EM48rx! They were pounding in from a distance of 24.1 miles (38.8 km)! We also made 5x9 SSB contacts from that location!
Harry and Herbert QRV from Wright City, MO EM48mu, Stop #5.
Spot #6 in EM48kt, Warrenton, MO was another good location. From a distance of 33.5 miles (54 km) both Herbert and Harry were in the log at 1:45 and 1:47 pm with 579 and 599 CW signals.
AF4JF and WA0CNS QRV from Warrenton, MO, EM48kt, Stop # 6 along the way.
Continuing west, AF4JF and WA0CNS activated EM48iu in Jonesburg, MO, Spot #7. A distance of 41.3 miles (66.5 km) with 579 CW signals at 2:24 and 2:26 pm.
Next location, Stop #8 found Herbert and Harry at EM48gv, at the winery at New Florence, MO! Those scoundrels! It's been a running joke between us that we'd end up at winery on our 10 GHz expeditions. Herbert laughingly assured me that the winery was chosen for its location relative to EM48rx and not for a wine "tete a tete." :-) Still, a chilled glass of Reisling sounded mighty fine at that moment with the outside temp somewhere in the upper eighties! The winery was 49.7 miles (80 km) away and Herbert and I were able to work each other via rainscatter with 579 CW signals. Unfortunately, I wasn't able to hear Harry WA0CNS' signal from that location. We made the Q with AF4JF at 3:17 pm.
Although we were growing tired and we were nearing the 265 degree limit of my location, there were T storms between us, so the decision was made to press on! After all, nothing ventured, nothing gained. What the heck, we were here!
Spot #9 ended up being a few exits past Mineola Falls dip in I-70 in Calloway county, MO, EM48dv, near Williamsburg for a distance of 63.8, miles (101.5 km). Rainscatter was the propagation mode and at 4:08 pm I worked AF4JF with 579 CW signals and I worked WA0CNS with 579 rainscatter CW signals at 4:18 pm. The reason I took a while to work Harry was due to visitors to Eagles Roost. I didn't want to transmit a 10 GHz signal directly at them as they gathered to read the information sign.
As a matter of fact, a running joke for this odyssey was I could tell when Herbert and Harry were ready to get on the air because that's when groups of visitors would come to the scenic overlook preventing me from transmitting. It did, however, offer me the opportunity to explain what I was doing and to promote amateur radio. In fact, I met a very nice young, soldier, Joe, from Ft. Sill who is interested in DFing and he is interested in earning his ham license! I also met a group of Ferguson, MO who are into DIY.
Spot #10, our last location for the day, found AF4JF and WA0CNS in a new grid square just west of Kingdom City, MO. From EM38xw and with rainscatter, I worked Herbert at 5:35 pm with 559 CW signals for a distance of 80.8 miles (130 km). Unfortunately, more visitors arrived and we patiently waited for them to leave so I could work Harry WA0CNS. The raincloud had moved and I wasn't able to hear either Harry or Herbert. We'd lost rainscatter propagation. This location is north of my 265 degree boundary, so rainscatter was the only propagation mode available for this location along I-70.
Conclusions: All in all, this 10 GHz odyssey was a great adventure. We learned more about 10 GHz propagation. AF4JF and WA0CNS did a great job of "shooting and scooting." I met some nice visitors at Eagles Roost, but at times their presence was frustrating because I wouldn't transmit while they were there which necessitated patience on both ends of the QSO and time delays. On the other hand, it afforded me the opportunity to talk about ham radio. I came prepared with ample amounts of water to hydrate, I brought lunch and I had fruit to eat throughout the day since Eagles Roost is not close to any food venues. I brought along a book to read to pass the time in between Qs as Herbert and Harry traveled to the next stop. From prior trips, I knew there wasn't a water fountain at Eagles Roost. What I forgot was there also wasn't a outhouse. Keeping hydrated also meant bladder relief. The terrain is rugged. So, I would go down the slope, next to the platform, keep and eye out for visitors, and when safe, take care of business.
I saw a deer at the park's entrance, and at Eagles Roost, I saw a bald eagle soaring the thermals, a few turkey vultures riding the thermals, a big spider, butterflies and flies with iridescent blue backs. I spied two barges on the Illinois River below me and an approaching thunderstorm at 5:00 pm, threatened my "roost" at Eagles Roost, but it stayed to my west. The sound of thunder rolling in the park's hills was impressive.
By 6:00 pm, more than ready to call it a day, I packed up my gear into my red wagon, to assist me, bringing it back down the trail to the parking lot and my vehicle which worked out nicely. A young lady and her boyfriend had rose petals that they were scattering along Eagles Roost in anticipation of her brother proposing to his fiancée with an expected arrival of 6:15 pm. By 6:30 pm, I was on the road heading back to Girard. I stopped off at Jerseyville, IL, at a McDonald's, and two sausage and egg McMuffins, along with a large coffee later, I was back on the road heading home. A good day spent with nature, friends and ham radio!
Eagles Roost offers a great view. The first water body is the Illinois River and just above it is Swan Lake. Beyond that is Calhoun county, IL and the distant ridge is I-70.
A good, wooden bench, water and a good book occupied me in between QSOs.
The bench proved to be quite comfortable. Cloudy skies kept the sun off me. Temp was in the mid to upper 80s.
Eagles Roost platform. My 10 GHz rig is to the left and the sign, which proved to be quite popular with visitors is to the right. I didn't set up next to the sign, because I didn't want to block access to the sign. After all, this is a public, state park!
Below: sRadar Scope screen shots from my camera depicting the various T storms between me and Herbert and Harry.
The screenshot above is the T storm that provided rainscatter between EM48gv and EM48rx
A wider view of the EM48gv T storms. My location is north of St. Charles and west of Godfrey.
Friday, September 20, 2019
BARS September Breakfast
On Saturday, September 7, 2019 BARS members Ron, Herbert, Harrold, Dallas, Harry, Mike and Bill gathered for breakfast at the Country Pride Restaurant in the TA Truck Stop in Troy, IL. We had a pleasant breakfast and conversation. Ron brought in his "Chinaspot" for show-n-tell as his latest foray into DMR radio. Harry brought in a board he's modifying as a 10 GHz preamp.
We also talked about the upcoming second round this month in the ARRL 10 GHz and Up contest. Our plans are to have Ron activate a scenic overlook at Pere Marquette State Park near Grafton, IL EM48rx and overlooking a western swath of St. Louis county and all of St. Charles county in Missouri.
After the breakfast, while standing in the parking lot, Mike pulled out his IR detector mounted behind a lens and feeding a Radio Shack audio amp he could detect the light inside the restaurant while standing outside. Ron pointed it at a distant sign across the parking lot and we could clearly hear the light emitted from the signage. A fun experiment.
Harry's WA0CNS modified 10 GHz preamp
Mike N0OBI's IR detector mounted in a lens and his Radio Shack audio amp
Mike N0OBI and Bill W0ETR at the TA Truck Stop in Troy, IL. Note the TA struck stop sign behind Mike N0OBI. His IR detector was able to detect the emissions from that sign!
We also talked about the upcoming second round this month in the ARRL 10 GHz and Up contest. Our plans are to have Ron activate a scenic overlook at Pere Marquette State Park near Grafton, IL EM48rx and overlooking a western swath of St. Louis county and all of St. Charles county in Missouri.
After the breakfast, while standing in the parking lot, Mike pulled out his IR detector mounted behind a lens and feeding a Radio Shack audio amp he could detect the light inside the restaurant while standing outside. Ron pointed it at a distant sign across the parking lot and we could clearly hear the light emitted from the signage. A fun experiment.
Harry's WA0CNS modified 10 GHz preamp
Mike N0OBI's IR detector mounted in a lens and his Radio Shack audio amp
Mike N0OBI and Bill W0ETR at the TA Truck Stop in Troy, IL. Note the TA struck stop sign behind Mike N0OBI. His IR detector was able to detect the emissions from that sign!
Labels:
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Monday, September 16, 2019
ARRL VHF September 2019
Harry WA0CNS and Herbert AF4JF went outdoors once again. The reason for doing that was the ARRL VHF September Contest. We both participated in the "Rover" category. Harry is an experienced rover, but Herbert has only done this a few times before (being from Europe where they have no such category in HAM Radio contests) and never on 5 bands. We were both able to work on 144-220-432-1296 and 10368MHz this time.
Note that Herbert strongly disagrees to using 50MHz in VHF contests! Every time there is an 50MHz opening, all the stations disappear from all the other bands and leave the rovers alone. There should simply be 50MHz contests at different times, not together with VHF or higher bands.
We have picked a nice area just North of St. Peters, along the line between EM48 and EM49. There used to be a ferry across the mighty Mississippi River. That went off business several years ago, so we were confined to the West side of the river. There also is a nice lock dam in the vicinity:
Note my four-legged companion Darcey. She accompanies me to many HAM Radio outings.
We arrived a little early, the contest didn't start till 1:00 pm local time, so Herbert and Darcey took a short hike to a nearby viewing point (which actually serves as a reference point for checking how much the dam moved under the immense water pressure):
This is a very interesting structure, for it provides a nice view towards Chicago. We shall return here to try some QSO with stations from that area. Unfortunately, the access road to that viewing point is forbidden for cars (by a locked beam across the road). We would have to use a cart to get the heavy batteries over the approximately 1000 ft. distance between the public parking lot and this viewing point.
Herbert set up right there in the public parking lot while Harry returned approximately a mile back to a location Herbert used in a VHF contest 7 years ago. The land owner noticed Harry on his property there and came to ask about our activities. We have received his permission to stay and continue with our activity. Here are pictures of Harry's rover set up in that area:
Herbert's rover was far less sophisticated and required time-consuming set up at every new location:
So, the contest started and we have made our first contest QSOs from these locations. Both of us actually worked other stations from these locations, so they are certainly good enough for VHF contesting despite the low elevation in the river valley. After working each other, we both moved to EM48 to make more valid contest QSOs. That's one of the main contesting rules - a Rover must work from more than one big grid.
Here are pictures from one of these EM48 locations, about 1 mile South of the EM49. Note that this is on the top of a levee ... we have found many dead fish on that levee. The entire area has been flooded this Spring:
So, that's it. This location has proven itself to be suitable for VHF contesting, especially thanks to the line between EM48 and EM49 running right through the center of this area. We have made 10GHz contacts from each location, which means that we will bring more microwave bands next time (probably start with 3.4 and 24GHz).
Harry and Herbert moved back South and made some more QSOs from EM48, but that's a different story.
73 Herbert
AF4JF
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