To: | [email protected] |
---|---|
Subject: | Re: LF: ELF communications ? |
From: | Markus Vester <[email protected]> |
Date: | Thu, 9 Oct 2014 12:35:50 -0400 |
Dkim-signature: | v=1; a=rsa-sha256; c=relaxed/relaxed; d=mx.aol.com; s=20140625; t=1412872550; bh=wk3cu9PPTSdKb1unazgvRCuTjR9nLLXoFvoXpDL0/kc=; h=From:To:Subject:Message-Id:Date:MIME-Version:Content-Type; b=EQINKSqmSTJmAKxD+u11A4sk/bXnGPSmxLDVyxjlVfXgGrf6rMBpk8/bNDLOatotz /rBLqUX6iecGJxveR9vi5OZ5ELPhCJkR8sxMA24+1yWcljwwyPMq1s+kocWqrlQI6V vwdL2yns3NSZNxg4bRePcDIV+JaVnoQBb8Cs1XI8= |
Reply-to: | [email protected] |
Sender: | [email protected] |
Stefan,
this could work. In the capacitive near-field range, the electrical field would be
E = voltage * capacitance * effective height / (2 pi epsilon0) / distance ^3
With 10 kV on your antenna capacitance and height, you'd get about 0.15 mV/m at 2.4 km, maybe 14 dB stronger than ZEVS.
Take care! Touching 10 kV on 136 kHz will severly burn you. But on 136 Hz it would kill you, unless the current is safely limited to a few mA.
73, Markus
Von: DK7FC <[email protected]> An: rsgb_lf_group <[email protected]> Verschickt: Do, 9 Okt 2014 2:51 pm Betreff: LF: ELF communications ? Hi ELF, |
<Prev in Thread] | Current Thread | [Next in Thread> |
---|---|---|
|
Previous by Date: | Re: LF: ELF communications ?, Warren Ziegler |
---|---|
Next by Date: | LF: CQ F4DTL JT9-1 630m this evening, F4DTL |
Previous by Thread: | Re: LF: ELF communications ?, Warren Ziegler |
Next by Thread: | Re: LF: ELF communications ?, DK7FC |
Indexes: | [Date] [Thread] [Top] [All Lists] |