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| Subject: | Re: VLF: Ground loop improvements and test carrier... |
| From: | DK7FC <[email protected]> |
| Date: | Wed, 03 Apr 2019 21:37:57 +0200 |
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RR, but for the 2.12 A i needed 415 W TX power and for 2.74 A i needed
515 W. So there is still an improvement of 10 * lg(515/415) = 0.94 dB.
Further improvements planned... Tnx & 73, Stefan Am 03.04.2019 20:57, schrieb Paul Nicholson: Stefan wrote: > Earlier that day, the same test was done at 5170.1 Hz. > But there, the antenna current was different: Received - 900m: T2019-03-31_12:31,+19m at I = 2.74 A: 0.50fT S/N -6.74dB/1Hz 1130m: T2019-03-31_12:57,+31m at I = 2.12 A: 0.51fT S/N -8.22dB/1Hz So 0.51/0.50 = 1.02 and 1130/900 * 2.12/2.74 = 0.97 so this time just a little more gain than the length increase. -- Paul Nicholson -- |
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