SKCC 5123T----- FISTS 14979----- Flying Pigs 2331----- NAQCC 3610-----QRP ARCI 14176-----Polar Bear 257

Sunday, November 8, 2020

N4KGL RaDAR Challenge Report for November 2020

The RaDAR Challenge is very much about making choices. Key choices include the rig/antenna, the venue, and the means of transportation. My choices for the November 7th, 2020 Challenge were:

I chose the Icom IC-705 because it's my new rig, and I better try it out. It weighs a couple of pounds and runs 10 watts. A hundred-watt rig would have made contacts easier, but that is more bulk and weight to carry. 

The new Icom IC-705

I chose the Alexloop magnetic loop for its small size, quick setup, and rapid band changes. It does not require a tuner. That's a good thing since the IC-705 does not have an internal tuner. Would a dipole have done better? Probably, but it takes more time to set up, and it is hard to have a dipole that is resonant for all bands between 40 and 10 meters. Also, the magnetic loop is vertically polarized on the horizon. That fits in with my choice of venue.

My Alexloop is the ultimate in portability.

I chose St. Andrews State Park as my venue in-part because it gives me access to the saltwater shore. The saltwater effect will boost your HF signals. That is a good choice if you run low power. This effect applies to vertical polarization, and I have that with the Alexloop.

Saltwater is your friend for QRP.

I chose to ride my bike. The required distance is two kilometers. My rides took about eleven minutes. I strapped the Alexloop case and my tripod for the loop to the luggage rack on the bike. I carried the rest in my backpack.

The Alexloop in its bag and the tripod on my bike.

The goal is to make five contacts and move. Making five contacts with ten watts and a mag loop can be tough when you need them in a hurry. So you have to leverage anything that will help. My leverages included:

I got a little help from my friends. My first contact was a local ham Bob WB4BLX. He found me on 20 CW. My second contact was Myron WV0H in Colorado on the same band. I also worked a couple of friends on two-meter FM Simplex, Frank W4IMH, and Bob N4RJJ. I got a 20 meter SSB call from Bob KK4DIV, who was doing RaDAR in a Conservation Park a few miles away. A RaDAR to RaDAR contact is awesome. I must also thank Dennis WA6QKN for help setting up and logging. It was a team effort.

I used CW for about half of my contacts. CW can help out when you are doing low power portable. It is definitely worth learning if you do QRP. It happened to be the Weekend Sprint for the Straight Key Century Club. They always want my SKCC number.

I took advantage of Parks On The Air or POTA since I was in a state park. I put in some spots on the POTA website. I got a few contacts that way, but not the usual pile-up. Note that it is work to get their grid square when they don't expect to give it out.

I also checked in with the 17 meters group on 18.157.5.  I worked Bud W3FF tricycle mobile and VP2IMI in the Caribbean there.

In summary, I operated at four stops and took three bike rides in four hours. That was twenty contacts in total. The bands included 40 CW & SSB, 20 CW & SSB, 30 CW, 20 CW and SSB, 17 SSB and 15 CW. There was quite a lot of activity on 17 meters and some on 15 meters. So, solar cycle 25 is helping out as well. 

So frankly, it takes a bag of tricks and good luck to make those RaDAR contacts when you need them. The Alexloop came through. Our reports were sometimes weak but copiable and sometimes S9 on the other end. It is a challenge to break pile-ups with a mag loop. I did not spend long trying. The Alexloop has a special place in my antenna repertoire since it is the most portable of the lot.

My advice is to do lots of portable work, try lots of gear, and see what you like. Eventually, your skills, your equipment, and knowledge of the HF bands will mesh. Then you will be in the flow zone for the four hours and have a satisfying experience doing Rapid Deployment Amateur Radio (RaDAR).

Dennis WA6QKN at our favorite picnic table by the Grand Lagoon.




Friday, November 6, 2020

Retired Life: Camping and Ham Radio

Linda and I decided we would do camping in our retirement which started in March of this year. We now have a twenty-four-foot Coachman Spirit trailer to enjoy. Towing and setting up a trailer has been a big learning experience for me. Starting last Saturday, we camped four nights at Three Rivers State Park on the Florida side of Lake Seminole. Our first trip with the trailer was a success.

Our trailer at campsite 13 at Three Rivers State Park

Of course, any campsite is a portable operating opportunity. In particular, State or National Parks qualify for Parks On The Air, POTA program. Three Rivers State Park is POTA K-1922. I decided to try the new Icom 705 with the Elecraft KXPA100 Amplifier for this activation. The antenna was the SOTABeams 40-30-20 link dipole. 

I used the Icom IC 705 and the Elecraft 100 watt Amp

It turns out POTA has a large pack of hungry hunters. I got several pile-ups going. In particular, the hour before sundown on 40 meters SSB pulled in sixty contacts in one hour. I had 172 contacts in all including nine park-to-park contacts.

A view of Lake Seminole



Suzy has claimed the bed for her R&R.

N4KGL RaDAR Challenge Plans for Saturday 11/7

My four-hour window for the challenge will start between 1500 to 1600 UTC, 9 to 10 am CST. The venue will be at St. Andrews State Park near Panama City, FL. I plan to take advantage of the saltwater effect on the Grand Lagoon on the Northside.  There are a picnic table and a pier right on the saltwater. It will be any which way I can to get five contacts to allow me to move to the next stop. Dennis WA6QKN will assist.  I'll be riding my bike two kilometers between stops.


My rig will be the Icom 705 and the Alexloop. I will check the high bands for intercontinental RaDAR DX. Eddie ZS6BNE, I see on VOACap there might be a path to South Africa on 10 meters. I do like 17 meters for RaDAR in particular 18.157.5 USB. On CW, I'll try 14.061,18.071, 21.061, and 28.061. Look for me on RBN or Ham Alert. The park is POTA K-1917. Check for my spots at https://pota.us/#/.  I will also be looking for local contacts on HF and two meters FM on 146.565 simplex. I'll give updates on the local 145.210 repeater. Note, I would like your six-digit or more grid square in the exchange. 

RaDAR is Rapid Deployment Amateur Radio founded by Eddie ZS6BNE in South Africa. See the RaDAR Challenge rules at http://radarops.co.za/index.php/radar-rules/  Go out portable and give RaDAR a try or chase us RaDAR ops. RaDAR to RaDAR is an exciting goal.

Good Luck and be safe,

Greg N4KGL



Tuesday, August 18, 2020

Skeeter Hunt 2020 for N4KGL

Skeeter Hunt is an annual QRP event sponsored by the New Jersey QRP Club  I operated outdoors portable from Dothan, AL. The temps were in the 90s but picking a shady spot helped. Tom WD0HBR allowed me to use the vacant lot next to his Mother's house. My rigs were the Wilderness Sierra kit on 40 meters and a Wilderness SST-20 kit on 20 meters. The antenna was the 68-foot end-fed that Myron WV0H built for me. I enjoyed spending time with Tom who helped me copy the weak sigs. Suzy enjoyed the afternoon as well. It was a pleasure running into my friend  Bobby AK4JA from Georgia on 40 meters. I had 18 contacts of which 14 were fellow skeeters. The rest were 100-watt stations. The Skeeters were not as plentiful as they could have been due to conditions, but enough for a fun afternoon. 



The Sierra and the SST-20, both are Wilderness kits I built.

Suzy relaxing in the shade




Wednesday, August 12, 2020

Saltwater Effect Presentation

I have taken advantage of the so-called saltwater effect for vertical antennas while operating QRP portable right on the shoreline around Northwest Florida. My presentation discusses an attempt to quantify the saltwater effect using the Weak Signal Propagation Reporter WSPR beacons. The initial data shows the advantage of operating on the saltwater shore. I used a Microsoft Access database to provide data analysis. I am looking for collaborators to continue his experiments and make them more rigorous. This talk was prepared for the QSO Today Virtual Ham Expo and played on August 9th, 2020.



I have created a groups.io group for the saltwater effect. Send an email to saltwatereffecthamradio+subscribe@groups.io to subscribe. If you want to share your experience using the saltwater effect post there. I am open to collaborating on data analysis and future experiments.

Greg N4KGL

Friday, August 7, 2020

Saltwater Effect Talks on the QSO Today Ham Expo

 Learn how operating near the saltwater shore can enhance your portable operating experience!


Tom Robinson Saltwater Amplifier Talk in Track 2 on Saturday 8 August 3:15 pm CDT

Greg Lane Saltwater Effect Talk in Track 2 on Sunday 9 August 1:15 pm CD


Register for the expo at

Friday, July 10, 2020

N4KGL Plans for the 11 July RaDAR Challenge

N4KGLwill operate RaDAR Challenge from Opal Beach on Santa Rosa Island in Northwest Florida. The island is very narrow with the Gulf of Mexico on the Southside and Santa Rosa Sound on the Northside. We will use a vertically polarized antenna to take advantage of the saltwater effect. Since the IARU HF Championship Contest will be underway, we will check 17 meters first, then 40 or 20 meters.  We will use low power and be on foot. Doing RaDAR, we will make five contacts and move one kilometer to the next stop, and repeat for four hours. Our start time is around 1600 UTC.

Opal Beach is part of the National Parks Gulf Islands National Seashore and Parks On The Air. K-0661. We will spot to https://pota.us/#/ You can also set up your HamAlert for N4KGL  We welcome all chasers and especially RaDAR to RaDAR contacts. If you are out doing RaDAR or chasing, let me know via lanekg@gmail.com



RaDAR is Rapid Deployment Amateur Radio. The Challenge rules are at http://radarops.co.za/index.php/radar-rules/ Thanks to Eddie ZS6BNE for the RaDAR concept. Good luck, and stay safe! 

Dennis WA6QKN and Greg N4KGL