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The NAQCC September 2019 Challenge

All challenge info such as rules are now in the hands of Gary K1YAN. Email him with any questions in that regard at pix_email_k1yan (1K).

The results on this page are the responsibility of Hap K7HAP. Email him with any questions in that regard at pix_email_k7hap (1K).


I bet it has been a while since you had an arithmetic assignment. Well you have one now! Sharpen your pencil, charge your calculator and begin your homework. We have some grid square arithmetic to complete. Keep on reading to see your assignment, but first lets talk about the grid squares.

If you know the actual grid use it, otherwise the source for grid locators will be, as listed on the details page. For some DX entities may list a grid in the center of the country. This may or may not be exactly right for the actual station location, but, use the grid as listed. If there is no grid square listed on the details page, click on Explore on HamGrid Maps. This will bring up an interactive map. If you can’t find the actual location on the map, make a " best guesstimation " , such as near Munich, central Texas or northern Spain. Clicking on the map at this location will display a grid square. Use the four character grid displayed. Keep it simple ... a lot of us can’t afford to pull out our hair in frustration.

The first day of the month 0000Z through the last day of the month 2400Z

Work a combination of stations whose four letter grid square digits let you fill out the equations that follow.

Example: You work stations in FN41 DN10 and EM51. Use the digits from these grids and you can fill out the equation ___ + ___ = ___ like this: 41 + 10 = 51.

There are no specific numbers that you must use. The only requirement is that the arithmetic is correct. You must use BOTH digits from all of the grids you use. For example, you can not use just the 3 in EN36 to make a 3. You may use a grid only once, but if you work several different grids with the same number you may use that number once for each grid worked. If you work FN41 and DM41 you have two 41s to work with.

All General Challenge rules apply.

___ + ___ = ___

___ X ___ = ___

___ - ___ = ___

___ + ___ + ___ = ___

___ / ___ = ___

A certificate and a Participation Point go to everyone who completes all five problems and reports their results before the deadline.

A Participation Point goes to everyone who completes three of the five problems and reports their results before the deadline.

A choice of an item made by master woodworker Gregg WB8LZG as shown on our prizes page here goes to someone selected via a random drawing from all who participate and submit a report for this month's challenge. A person can only win once, then they become ineligible for future drawings.

For your report, list the grids you used and show the completed problem. Use one line per problem. See the example below.


FN41 DN10 EM51 41 + 10 = 51
EN50 CN02 FM25 50 / 02 = 25
Send your results to:

E-mail: pix_email_k7hap (1K) (You must type that address into your email program.)
Subject must read: (your call) NAQCC (month) Challenge
For example: K3WWP NAQCC February Challenge

All entries must be RECEIVED before the 10th of the following month at 2400Z.


All the above get a certificate and participation point.

All below get only a participation point.

Not eligible for a certificate or participation point for the following reason(s):
@ = Non-member
$ = QRO power