Tag Archives: Rich (KQ9L)

Accessories, Hacks and Hints, How To, News, Portable, QRP

Rich’s easy-to-build and incredibly affordable Field Clip Board V 1.0

9 Comments

Many thanks to Rich (KQ9L) who writes:

Hello Thomas,

I’ve attached couple pictures of V1.0 of my field clip board. I’ve been searching for the perfect clipboard to use in the field. The main requirements of the design include: lightweight, low cost and the flexibility to allow a comfortable operating position while securely holding a radio.

What I came up with is a based on an inexpensive fiber board clip board:

I chose to set it up somewhat unconventionally and designed it to use the clipboard “upside down”.  Setting it up this way provided ample space at the top to mount the radio while still providing room to attach a metal pad mounting point for paddles.

The radio is held securely in place with craft 3mm elastic bands. The bands were made with metal “toggles” so I can easily add more holes to the clipboard to accommodate varying rigs.

The metal pad is just a stick-on metal plate purchased from Amazon. I plan to add a leg strap in the future and will do so once I’m sure no other major modifications need to me made.

I’m pretty happy with the way the clipboard came out and would appreciate any comments or suggestions!

Rich
KQ9L

This is brilliant, Rich! I love both how affordable this board is and how easy it is to build. Having the clip at the bottom of the board is a fantastic way to secure your logging notebook as well. 

Thank you for sharing!

Antennas, Guest Posts, Morse Code, News, Portable, QRP

Rich re-activates Santa Fe Prairie State Park with QRM-busting in mind

4 Comments

Many thanks to Rich (KQ9L) for sharing the following field report:


Field Report: Testing a horizontally-polarized antenna at a high QRM POTA site

by Rich (KQ9L)

I wanted to give a quick follow up report from Santa Fe Prairie State Park (K-7839).

As you may recall I wrote up my POTA activation from this park on Oct 23, 2022. I made 15 Q’s that day but deep down felt I could do better. The setting of the park is quite industrial and consequently the man made noise is bad. Reflecting back on this activation, I feel that the limited the number of QSO’s I made that day was due to this QRM.

I resolved to try again but this time my objective was to figure out a solution to mitigate the effects of the QRM on my QSO count. Thinking about the problem, I recalled than manmade noise typically is vertically polarized and therefore for my second attempt, I decided to test this and use a horizontal antenna.

As luck may have it, here in Chicago we continue to experiencing unseasonably warm weather and my work schedule wasn’t too busy on Thursday, November 3, 2022, so it seemed like a great chance to put my theory to the test.

For the antenna, I decided to use one which I have owned for awhile, but have never used. I had purchased a RadioWaves Double bazooka from an online retailer some time back when they were on sale and planned to set up it a flattop dipole.

If you recall from my description of the Santa Fe Prairie State Park, there is a scenic overlook which has a tree mounted pulley system perfectly spaced to mount a 20m dipole. Although this would be the first time I used the system, it turned out to be a well designed and intuitive hoisting solution to use.

The “pulley” is actually an eyelet with paracord running through the eyelet. The paracord is in a continuous loop just like rope on a flag pole. By employing a simple overhand knot I secured the end of the antenna to the paracord and hoisted the antenna up into the tree about 20ft. It literally took a few minutes and I was ready to go.

Antenna was fed with my RG-316 feedline with built in common mode choke. Since a dipole is a balanced antenna system, it really doesn’t need the choke, but it was the coax that I had packed with me and I figured it wouldn’t cause any harm or negatively affect my test. I was QRV by 3:20pm, and anxious to get on the air. Continue reading Rich re-activates Santa Fe Prairie State Park with QRM-busting in mind →

Field Reports, Guest Posts, News, Portable, POTA, QRP

Rich’s Triple Activation Day!

4 Comments

Many thanks to Rich (KQ9L) for sharing the following field report:

Triple Activation Day

by Rich (KQ9L)

I decided to build on the momentum and lessons learned from my last two POTA outings and yesterday [October 29, 2022] completed x3 Activations in one day— a first for me. I wrote a brief description of the day and I hope you enjoy reading about the activations.

Well the weather has been pretty good here in Chicago and Old Man Winter hasn’t made it around to these parts yet and being on a POTA kick lately, I decided see if I could complete several activations in one day. Previously I had completed x2 in one day, but felt that after all that I learned from my last couple activations, I should practice what I learned and go for three.

In my area, there are several POTA sites, but one area to the south of me seemed to be the best location to accomplish my goal. The area has a unique geographic feature and historically interesting landmark which added to the lure of the area. The region centers around the Illinois and Michigan Canal.

Here is a quick history lesson courtesy of Wikipedia:

The Illinois and Michigan canal was build in 1848 and served as a connection between the Great Lakes and the Mississippi River. Running 96 miles, it connects Bridgeport in Chicago to LaSalle-Peru. Why was this important? This connect helped establish Chicago as the transportation hub of the US and linked by water the East coast to the Mississippi River and from there the Gulf of Mexico. Before the railroad era in the US, this water way dominated transportation.

Pretty cool!

Along the canal are numerous little hamlets and one in particular, Morris, Illinois had x3 State Parks all within about a 5 mile radius. Perfect!

First stop was Gebhard Woods State Part (K-0995). The park is only 30 acres, but affords activities for hikers, fisherman, campers and picnickers. There is even an eBike rental facility so the park has broad appeal to many people, including hams!

I arrived pretty much right after sunrise and was greeted by fog and a thin layer of frost on the grass and picnic tables. Though beautiful this frost and fog, did not make for a fun activation. Temps were in the upper 30’s F, but with the fog the air felt damp and overall much cooler.

I hurriedly set up my PackTenna 9:1 antenna on my collapsible mast and leaned it up against a nearby tree. I had a separate counterpoise and feed line with a choke built into it…more on this later.

Continue reading Rich’s Triple Activation Day! →

Field Reports, Guest Posts, News, Portable, POTA, QRP

Rich activates the very POTA-friendly Santa Fe Prairie State Nature Preserve (K-7839)

2 Comments

Many thanks to Rich (KQ9L) for sharing the following field report:

Activating K-7839 with lessons learned from my last portable POTA activation

by Rich (KQ9L)

Here in Chicago, we have been blessed with unseasonably warm weather these past two days. I decided to build on my last successful POTA activation and apply some of the lessons I learned from that activation while working this one.

Close to my home is Park K-7839, the Santa Fe Prairie State Nature Preserve (K-7839) in Cook County, IL.

The preserve was established in 1997 and is staffed and maintained solely by volunteers. The park’s mission is to preserve a section of land for people to observe and admire the natural Illinois Prairie Landscape before it was altered by man.


The park itself is a thin sliver of land west of Chicago and is boarded by the Des Plaines River to the south and the rail yard / industrial park on the other there sides. If you look carefully in the second picture below, you can see some Sante Fe trains in the distance.

The park is easy to reach by car and right off the main park road are several picnic tables which I’m sure a ham in a wheel chair can easily access.

There are a number of features of the park which facilitate a POTA activation.

For example, in the picnic area, a Boy Scout Eagle Scout project resulted in the building of a 22ft flagpole. The flags are long gone, but the sturdy pole has been made available to hams for the hoisting of antennas. There are pulleys and easy tie down points to erect and inverted vee antenna.

To the east most section of the park is a lookout deck and at the east and west of the deck are trees with pulleys and lines permanently mounted. I’ve been told by the staff that the distance between the trees is a perfect fit for a 20m dipole. Continue reading Rich activates the very POTA-friendly Santa Fe Prairie State Nature Preserve (K-7839) →

Guest Posts, Hams, News, Portable, POTA, QRP

Rich packs the KX2 field kit for air travel and a POTA activation!

7 Comments

Many thanks to Rich (KQ9L) for sharing the following field report:

Field Report and Lessons from Torrey Pines State Beach (K-3580)

by Rich (KQ9L)

As you can tell from my call sign, I am a W9er, but recently had the opportunity to travel to California and specifically to the San Diego area. I thought it would be fun to try to activate a park near my hotel. I consulted the POTA website and found one park which was within 5 miles of my hotel, perfect!

While planning for the trip, I carefully chose and packed my gear to minimize added weight and bulk of my carry-on luggage. Because on this requirement, I chose my Elecraft KX2 with built in battery, my KXPD3 paddles, a K6ARK end-fed half-wave and the telescoping fishing pole from the PackTenna portable mast system.

Everything fit perfectly into a Lowepro CS40 case and Tom Bihn HLT. I did not bring the tripod from the PackTenna system to cut down on weight and bulk.


The hardest part of traveling with this setup was the fishing pole as I could not fit it diagonally in my carry-on legal luggage and I ended up having it sticking out the top of my soft side Patagonia MLC carryon backpack / travel luggage.

I received a few odd looks from passengers and airline personal but to my relief I did not get hassled for the odd looking thing sticking out of my luggage. To minimize the space my luggage occupied in the overhead storage, I simply pulled the pole out of the luggage and stowed it in the bottom of the overhead bin. Easy! Everything made it safely to my destination and no the got destroyed.

This morning [October 15, 2022] I decided to go out early to activate Torrey Pines K-3580 which is just north of San Diego.

I ran into a problem which I guess I should’ve anticipated. Being from the central time zone and normally a 5 AM riser, I found myself ready to go by 3 AM Pacific time. I dillydallied for a few hours and watched a few of your YouTube videos to get me psyched up and ready for the activation.

I got out to the site right at sunrise and set up without much difficulty. I found the vegetation to be conducive to setting up the fishing pole by leaning it up against some of the shrubbery. Continue reading Rich packs the KX2 field kit for air travel and a POTA activation! →

Articles, Hacks and Hints, How To, QRP Radios

Rich builds a simple GX12 key/paddle adapter for the Discovery TX-500

7 Comments

Many thanks to Rich (KQ9L) who shares the following tutorial describing how to build a compact key/paddle GX12 connector for the lab599 Discovery TX-500:

This adapter is simple, compact, and eliminated the need for yet another wire extension.

How to build a Discovery TX-500 key adapter

I love my Lab599 Discovery TX-500 however I was frustrated with all the extra “wires” hanging from the connectors on the rig.

I took inspiration from Vlad Solovey (RA9QAT) who posted his design for a small and compact 3.5mm jack that allows you to connect your paddles directly into a GX12 connector. Continue reading Rich builds a simple GX12 key/paddle adapter for the Discovery TX-500 →

Hacks and Hints, Homebrew, How To, Kits, News

Xiegu X6100: Two effective ways of mitigating broadcast band interference and overloading

18 Comments

As I’ve previously mentioned, the Xiegu X6100–at least at time of posting (January 17, 2022)–has overloading issues. If you listened to the activation video I posted yesterday, you can hear a local AM broadcaster punching through the 40 meter band, especially noticeable before/after operating SSB.

Several subscribers asked if I tried using the attenuator and RF gain to mitigate the level of overloading.  Attenuators and RF gain can be an effective means of mitigating noise levels, but they essentially affect everything on the band–all signals somewhat equally.

A better approach is to use a BCI Filter.

BCI Filters

BCI filters reduce or notch out AM broadcast band signals so that they don’t overload your receiver.

BCI Filters are placed between the radio and the antenna. They can have a dramatically positive effect if you live near a broadcast station and/or if you have a radio that’s prone to overloading.

I see them as a more “surgical” approach to solving broadcast band interference.

BCI filters are simple, inexpensive, and effective. Here are two options shared by QRPer readers: Continue reading Xiegu X6100: Two effective ways of mitigating broadcast band interference and overloading →