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| Subject: | Re: LF: Fw: 472.5 CHAOS AGAIN |
| From: | wolf_dl4yhf <[email protected]> |
| Date: | Sun, 16 Sep 2012 23:00:24 +0200 |
| In-reply-to: | <[email protected]> |
| References: | <[email protected]> |
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| Sender: | [email protected] |
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Hope the 'temporary overload' of the band, aka chaos, has dropped and things have calmed down a bit. Also the black hole in propagation between two certain stations will disappear quickly. Uwe (KQ) - thanks for a new one in the log. 21 Volts measured with a peak detector (diode) means 14.8 Volts effective; that voltage across a 470 ohms resistor means 31.6 mA, and that current multiplied with the transformer ratio (50 : 1) means your antenna current was somewhere around 1.58 Ampere. Sounds reasonable; I get similar results at DF0WD at about 60 or 70 watts transmitter output. Good night, Wolf . |
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