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"Sum Ting Wong" wrote in message ... On Fri, 22 Sep 2006 07:24:46 -0500, "H. Adam Stevens, NQ5H" wrote: Logs are Passe'; Use a SteppIR. Yep... a SteppIR AND one of these... http://www.teleskopmaste.com/optibeam/ob804020e.htm I see the gain figures on that beauty and I puzzle over why the dBd and dBi gain figures are so far apart -- about 7 db. I expect a difference somewhere in the 2 - 3 dB range. IIRC it's 2.2 dB. What am I missing? Before I sent this, I did a Google search using some of these terms and discovered "ground reflection gain," a term I have never seen before, except in connection with EME with the moon near the horizon. Is this a realizable gain or damnable inflation of gain numbers? TKS. |
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