February 2009 QST Feedback
In “Hands-On Radio” [Jan 2009, pp 76- 77], the value shown for return loss in all tables should be shown as a positive value. In addition, the correct values for Table 3 are as follows:
Table 3
PREFL/PFWD Versus SWR
SWR Prefl/Pfwd RL(dB)
1.01 0.00002 -46.1
1.1 0.00227 -26.4
1.2 0.00826 -20.8
1.5 0.04000 -14.0
2 0.11111 -9.5
3 0.25000 -6.0
5 0.44444 -3.5
10 0.66942 -1.7
100 0.96079 -0.2
For more on this, see the Hands-On Radio Web page at www.arrl.org/tis/info/HTML/Hands-On Radio/. Thanks to Ed Wetherhold, W3NQN, and Igor Kosvin, KB1QOV, for their comments.
In Figure 1 of “The Universal Keying Module” [Nov 2008, p 43], Q1 should be shown as a PNP transistor type 2N4403.
In the 2008 June VHF Contest Results [Dec 2008, p 84] a line of text was omitted that highlighted N6NB’s winning score in the Rover category. We apologize for the omission.
In the announcement for the 2009 ARRL DX Contest [Dec 2008, p 85] it is reported that US and Canadian stations exchange a signal report and their ARRL/RAC Section. In fact, US and Canadian stations exchange a signal report and their State or Province.
Page last modified: 09:57 AM, 02 Jan 2009 ET
Page author: qst@arrl.org
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