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[TenTec] STANDARDISATION OF S-METER READINGS

To: <tentec@contesting.com>
Subject: [TenTec] STANDARDISATION OF S-METER READINGS
From: "Merle Bone" <merlebone@charter.net>
Reply-to: Discussion of Ten-Tec Equipment <tentec@contesting.com>
Date: Thu, 10 Jan 2008 14:19:49 -0600
List-post: <mailto:tentec@contesting.com>
Try without formating :-)


The Orion's S-meter calibration certainly isn't anything to "write home about," but it is "representative" of the distant stations signal strength. Running V1.373b5 I get the following readings using calibrated signal generator and attenuator on 14.058 MHz:

Sig Level Preamp On Preamp Off "Standard Reading"

50 microvolts S9+11 S8.1 S9 -6dB S9 S7 S8 -12dB S8.1 S5.5 S7 -18dB S7 S4.5 S6 -24dB S5.8 S3 S5 -30dB S4.5 S2 S4 -36dB S3.1 S2 S3 -42dB S2.1 S1.8 S2 -48dB S1.8 S1.8 S1

S1.8 is about as low as the S-meter goes on this release of the firmware with the RF gain at 100 and the AGC threshold set for .36 microvolts and the decay set for 200dB/s. I use the "calibrated measurements" when I am trying to understand antenna performance - particularly "front to back/side" measurements. 73, Merle - W0EWM


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