In “An Audio Interface Unit for Field Day and Contesting” [Jun 2008, pp 39-41], C19 is shown in the parts list twice, once as 10 μF, once as 1 μF. The 1 μF value (as in the schematic) is correct. The author notes that adding a 10 μF, 16 V electrolytic in the line between the top of R6 and K1A will keep radio mic bias from reaching the mic. He also notes that FAR Circuits offers PC boards for this project.

In “A High Gain Single Wire Beam” [Jul 2009, pp 38-39], the author notes that the inductor should be in series with the center conductor of the coax, not across the coax. The resonant frequency, that at which the SWR is lowest, may need to be adjusted by adding or subtracting turns from the coil. In his case, on 20 meters, the coil only needed about 8 turns rather than 26 turns. If the inductor is in parallel, the antenna will work, but the SWR will likely be about 3 to 1.

In “Homebrew Coaxial Dipole for VHF or UHF” [Jul 2009, pp 33-35], the stainless steel whip dimension in Figure 1 should read 440-6.5", not 440-65".

In the 2008 ARRL November Sweepstakes CW Contest results [May 2009, pp 81-83] the Northwestern Division Multioperator plaque winner was incorrectly listed as NN7SS. The correct winner is KL2R.

In the 2009 November Sweepstakes Phone Contest results [Jun 2009, pp 81-84], the Northwestern Division Single Operator QRP plaque winner was incorrectly listed as W7YAQ; the correct winner is NN7SS (N6UFO).

In the 2009 ARRL RTTY Roundup Results [Jul 2009, pp 84-85], the Dominion DX Group was incorrectly placed in the Medium Club category. They qualify for the Local Club category, making them the winner of the Local Club competition.

In the 2009 ARRL January VHF Sweepstakes Results [Jul 2009, pp 80-83], the winner of the Limited Multioperator category was incorrectly listed as K1JT. The correct winner is KB1DFB.

In the W1AW Schedule [Jul 2009, p 101], the 160 meter Morse code transmit frequency should have read 1.8025 MHz.