August 2022 ARRL 10 GHz and Up

 Saturday, 20 August, 5:00am, my alarm woke both me Ron KO0Z, and Debbie KC9ULA up.  After quickly showering, Debbie, Toula (our Aussie) and I met up with Herbert AF4JF and Harry WA0CNS in St. Peters by 6:00 am and formed a caravan up to Hannibal, MO EM49hq for the first leg of the ARRL August 2022 10 GHz and Up contest.  We were looking forward to meeting two, new SLAMS members Kevin AD7OI and his wife Tammy KI7GVT who recently moved from Arizona.  Kevin and Tammy are originally from Hannibal and both are experienced microwavers. 

 AD7OI has a very strong signal with his 10 GHz 60 watt signal!  We all met up just south of Hannibal at Lovers' Leap EM49hq.  This river ridge park is an excellent microwave location.  

Pictured left to right:  Debbie KC9ULA, Harry WA0CNS, Herbert AF4JF, Tammy KI7GVT and Kevin AD7OI at Lovers' Leap EM49hq, just south of Hannibal, MO.

 After our meet and greet, we set-up our rigs and began to make contacts.  One attempt was with some buddies near Cedar Rapids, but band conditions were not with us even with Kevin's 60 watt flame thrower.  However our group had much better luck working Gedas W8BYA, 337 miles (537 km) away near Ft. Wayne, IN!  We also succeeded working Zack W9SZ north of Champaign, IL in EN50rl 159 miles (256 km) to our east.  Zack went to another hill in EN50 for a successful 10 GHz Q.  

Ron KO0Z and Debbie KC9ULA crossed over the mighty Mississippi River to John Hays Recreation Area in EM49hr72. It is clearly visible a mile away as a gravel area from Lovers' Leap.

      The yellow arrow points to the Hays Recreational Area in East Hannibal about 1 mile away.
 

 Unfortunately Ron, Herbert and Harry were not able to make a successful two-way 24 GHz Q.  Herbert and Harry could hear me, but I was only able to copy one of them just for a short time, but not long enough to make a valid Q.  Drats.  But the weather was nice and the breeze across the river was welcome.

24 GHz dish pointing back across the Mississippi River towards Lovers' Leap EM49hq, 1 mile away from Hays Recreation Area EM49hr72.

 

Debbie KC9ULA is enjoying a good novel while her hubby Ron plays with 24 GHz.

 

                      

                                 Toula, our Aussie is taking in the sights and smells of EM49hr72.

 

              Larry KA9GWM spotted our uW activity and stopped by for a nice "eyeball" QSO.

 

 

Once we completed our EM49hq Qs, our next stop further down MO Hwy 79 is Lousiana, MO.  Zack W9SZ was making tracks for Ohlman Cemetery EM59ji and we needed a clear shot.  This was our first attempt to work Ohlman from this location.  We arrived on site after 2:00 pm and set-up. Although, we had partly cloudy skies, rain clouds were forming to our east which gave us rain scatter opportunities.

We worked Gedas W8BYA (322 miles, 518 km) and Zack W9SZ  ( 98 miles, 157 km) from that location.  Lousiana is another good uW location towards the northeast through southeast along the Mississippi River.

              Kevin AD7OI's dish aimed  towards Zack W9SZ in EM59ji from Louisana EM49lk.

 

 Kevin, Harry and Herbert made two-way 10 GHz Qs with Zack from Louisana to Ohoman cemetery!

Our next Saturday stop would be the park and Cottleville, MO  EM48qs and Dow, IL EM49ua.  Zack left Ohlman and headed towards Dow.  In the meantime, we parted company with Kevin.  He headed back home to Hannibal.  It was great meeting him and Tammy for the first time.  We made plans to continue with the contest on Sunday.

   Tired, but not exhausted 12 hours later Harry WA0CNS and Herbert AF4JF made a successful 10 GHz two-way Q with Zack 25 miles away at Dow, IL.  EM48qs to EM49ua.

 Twelve hours later Harry and Herbert made a ten gig contact with Zack W9SZ in Dow.  As luck would have it with microwaving, the shortest distance contact proved to be the most challenging.  It took a few tries, but the effort was worth it!  A huge rainbow complimented everyone's efforts.  Fortunately for us we had a few miles to go before home.  Poor Zack had at least a 3 hour drive for him back to Champaign, IL.  

Sunday, 21 August 2021  

 On Saturday we all agreed to not get up so early on Sunday.  Herbert called me around 9:40 am and asked if I'd like to accompany him to Kingdom City EM38xw to work Kevin planning to set up somewhere Macon, MO.  Sure!  A tall coffee cup later from Flying J Truck Stop and armed with a banana and two apples I was ready!  We arrived at our location along I-70 about 3 miles west of Kingdom City EM38xw to work Kevin AD7OI.

Successful 10 GHz Q with Kevin AD7OI Sunday afternoon from EM39xw and EM39uf.  About 25 miles.

 

Herbert AF4JF tried to work Harry WA0CNS in EM48pq, near High Ridge, MO but no luck on this attempt.

                            A close up screenshot of our uW site outside of Kingdom City EM38xw

 

                                       Darcy checking out the sights and smells of EM38xw
 
 EM38xw, about 3 miles west of Kingdom City alongside the I-70 south service road.  It's a good spot in almost all directions.  Noisy with all the interstate traffic, but not a bad contest location.  AD7OI and KI7GVT joined us for another meet and greet and to check out this location for future reference.  Afterwards we headed east towards St. Peters and Kevin and Tammy went into town for lunch.

All in all, a great contest and 10 GHz outing.  As luck would prevail, we got our 24 GHz rigs working towards the end of the contest.  Next month!

More contest photos

KO0Z's Limited Participation in the Aug 2022 ARRL UHF Contest

 Usually I haven't been available to work the ARRL UHF contest in August.  The West Central Illinois Hamfest near Carlinville, IL used to occupy the first Saturday in August.  This year the hamfest was moved to the second Saturday in August.This year I can participate, but I'm still in the process of setting up my shack, and I am inching ever closer to getting back into contest mode.  I did make it by to see Herbert AF4JF at the nearby community college and we made plans to operate from EM38 on Sunday, August 7th.

Herbert woke up earlier on Sunday to attempt working tropo on 10 GHz. Not being as ambitious as Herbert, I sacked in a little later.  I only brought 24 GHz, 25 microwatts of power that Harry WA0CNS kindly lent me.  I left my St. Peters QTH around 7:50 am and I was on site, EM38 shortly after 9:00 am.  I parked nearby Herbert and set up, just to check our equipment.  My microphone wasn't keying up the rig for some reason.  Herbert's microphone worked, but he needed it to work Harry WA0CNS in High Ridge.

We decided I would send CW and Herbert would reply with USB.  I drove west along the service road about 8 tenths of a mile and found a nice, gravel, pull out to set up, well out of traffic's way.  It took some time to aim the dishes and to optimize.  Herbert's USB signal was very distorted, but I was able to copy.  AF4JF's location is EM38xw28 and mine was EM38xw18.  We made the two-way 24 GHz Q at 10:13 am CDT.  Our 15 mile, 24 GHz Q in July proved to be much easier!  Go figure!

All in all, it was a fun trip and I thank Herbert and Harry for the opportunity to participate.

               Ron KO0Z set up 24 GHz at a gravel pull out in EM38xw18.  8 tenths of a mile west of Herbert AF4JF.

                    Herbert AF4JF 10 GHz, 24 GHz, 1.2 GHz set up in EM38xw28

                                                             Screen shot of EM38 xw

                                                       Screen shot of EM38xw28 on the grid map.

KO0Z's 2nd 24 GHz QSO between Missouri and Illinois !

 Saturday morning, July 16th, TV weather forecasters promising a hot, humid day.  A high pressure cell is retreating from an advancing northwesterly, cold front.  A good day to attempt my second ever 24 GHz QSO.  A week before, Harry WA0CNS lent me his second 24 GHz rig to experiment with.  I made my first 24 GHz Q with Harry and Herbert AF4JF across Creve Coeur Park (approximately 110 yards).  

TV weather forecasters were right (this time) it was hot, getting hotter and the relative humidity increasing from the low 60s.  Outside temp at 10 am CDT, 15:00 Z was 90 F.  Earlier in the morning Herbert AF4JF took the Golden Eagle Ferry across the mighty Mississippi River to the Calhoun County, IL peninsula to gather some peaches before crossing the Illinois River near Grafton and on to Pere Marquette State Park in EM48rx.  His destination is Eagle Roost, a scenic, 800 foot overlook with a uninterrupted view of the southeast to almost west direction.  It is shaded and relatively cool.  A great spot, and one of our favorite microwave locations.  Ron KO0Z, using Harry's loaner 24 GHz rig set up in (EM48qt) MidRiver's Mall, western parking lot (468 ft) looking 17 degrees and 13.22 miles (21.3 km) towards the distant Illinois river bluffs and AF4JF's location.

Herbert aimed his dish southwest (197 degrees) and transmitted USB.  Ron immediately heard his 3 x 9 signal. Herbert's signal strength was solid, but his transmitted audio was distorted.  AF4JF is using SDR/Pluto.  It sounds like his SSB is a bit over driven, but it is copy able.  Herbert's audio sounded cleaner today as compared to last week's test.  Apparently my audio and signal were fine at Eagle Roost!  Herbert is running 100 milliwatts output and Ron has 25 microwatts and we made the 21 km path today!

 We made the 24 GHz QSO around 10:35 am, 15:35 Z and not a minute too soon.  Although Eagle Roost has shade, the parking lot does not. Ron pointed his truck so it would offer a little, precious shade on this hot day.  Remarkably, the Q was made on the first try.  Harry cautioned me that the dish beam width is very narrow and he is so right.  After we made the Q, I experimented and moving the dish. Moving the dish more than a degree made the difference between hearing AF4JF and not hearing him.  

I'd like to thank Harry WA0CNS for lending me his second 24 GHz rig and Herbert AF4JF for making the trek to EM48rx.  I only had to travel less than a mile to get to my uW spot, but Herbert took two ferry boats and crossed the Calhoun county peninsula to reach the park.  Of course there was the added benefit of procuring delicious Illinois peaches and a road trip for his loving canine,companion Darcy.

                               Elevation profile between EM48rx and EM48qt.  The peaks in the middle are the Illinois bluffs just north east of the Mississippi River.

                           The white line is the path between Eagle Roost, IL and MidRiver's Mall, MO.

              Ron KO0Z's truck temporarily offered welcome shade from the 90 F plus temps. The dish is looking 17 degrees towards Eagle Roost 21 km to the northeast.

                               Just to the left on the light pole near Famous Shoes was the 17 degree marker. Eagle Roost and Pere Marquette park are off in them yonder hills.

                       KO0Z's setup and shade on the otherwise, hot, asphalt parking lot at 16:00 Z

                            Harry WA0CNS rig is using a W2PED 24 GHz transverter.

                               Herbert AF4JF forged across the mighty Mississippi via the Golden Eagle Ferry from St. Charles county, MO to Calhoun county, IL and the Calhoun peninsula.  Later, he took the Brussels Ferry across the Illinois River to IL Hwy 100.

                 Herbert AF4JF's Eagle Roost, EM48rx, Illinois 24 GHz location.

                   AF4JF is using SDR as his IF rig for 24 GHz.  He is making a lot of progress working out any bugs.

                                                   Darcy, is always up for microwaving!

                               AF4JF (EM48rx) aiming southwest, 197 degrees towards Ron KO0Z in St. Peters, MO EM48 qt,  13.22 miles (21.3 km) away,.

             NOAA's weather forecast map for Saturday, July 16.  Note the approaching cold front.  Although the map shows rain potential for Missouri, it did not rain on our parade today.  Sunday's forecast calls for much needed rain, so we picked a good day to try out 24 GHz.

MAD Day May 7, 2016

Herbert AF4JF, Harry WA0CNS and Jim N5MU met on the hilltop in EM48rq for Microwave Activity Day today (remember, MAD Days are every first Saturday of the month). The task for today was 24GHz.

We have tried 24GHz from this location several times. Everything looked OK today, Harry and Herbert have copied each other in the parking lot. Harry moved to the valley approx. 3.8 miles away and set up there. Herbert and Jim copied his signal well, but Harry didn't hear us down  there. The station on the hill (on picture) was only about 1 mW of power while Harry's station was close to one watt RF. 

Another interesting problem was the wind. Not only did we have problem hearing anything between the gusts, there also was a mechanical problem. The dish on picture was mounted on long piece of aluminium which was vibrating in the wind, causing the dish to lose aim. Yes, 24GHz beam from a dish of this size is quite narrow and difficult to aim.

The other tripod usually holds 10GHz dish. That band is "trivial" for short distance like this :-)

We didn't even try today.

73 Herbert

AF4JF

MUD 2016

Microwave Update 2016 will take place in St. Louis this year. Click on this link to find more info.

73 Herbert
AF4JF

Saturday April 19, 2014 SLAMS 24 GHz Show-N-Tell Breakfast

I went to bed on Friday evening looking forward to Saturday's 24 GHz show-n-tell breakfast!  I awoke at 5:30 AM to shower and to make the 100 mile trek from central Illinois to the Bridgeton, MO  Denny's restaurant. I arrived at 8:10 and I would have been there on time if it weren't for the over turned tractor trailer closing the on ramp from I-55 southbound to I-270 westbound.  I had to drive six miles out of my way to reroute myself back towards I-270.  The funny thing is that when I lived in St. Peters which is only about 12 miles away, I would usually arrive around 8:45 to 9:00.  I live 82 miles farther away and I'm usually on time!  Go figure!

Getting back on to topic it was great to see SLAMS next big project which is to be QRV on 24 GHz!  Herbert - AF4JF and Harry - WA0CNS are really making progress and they are anxious to generously share their knowledge with the rest of us by paving the way and showing us which pit falls to avoid!  These gents are true experimenters and I deeply appreciate their expertise!  Herbert and Harry have the 24 GHz beacon almost QRV with 250 mW out to a Alford Slot Antenna!  The beacon's IF and keyer need to be installed and then a suitable site to install it needs to be found.  Herbert and Harry plan to experiment with a few potential sites to see which one is most favorable for omni propagation.

It looks like a few of us are going with the DMC units.  I am expecting mine to arrive from Poland any day now.  I have an Elcom synthesizer that Herbert will program for me.  I also have a PyroJoe 24 GHz filter.  I have a dish for my unit and I am thinking about using a cassegrain prime focus feed.

Thank you SLAMS for placing that proverbial fire under my tush to assist me with getting my rear in gear!

                                                        Taking the meeting outside

                                    Harry-WA0CNS with his prime focus, cassegrain fed dish.

                                                 Close- up of the cassegrain feed.

                                Notice how the feed horn's shadow sits dead center on the dish!

                                                   ELCOM unit with 23 GHz highpass filter.

                               \
        Herbert's 24 GHz Alford Slot omnidirectional antenna for the beacon.

                                                    DMC Kompakt unit for 24 GHz

                                            Modifications made to the DMC unit.

                                         An insider's view of the 24 GHz St. Louis beacon.

                                                      Harry- WA0CNS does fine work!