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Re: LF: De F6CNI : Testing this evening a short whip on WSPR2 MF.

To: [email protected], "RSGB LF Group" <[email protected]>
Subject: Re: LF: De F6CNI : Testing this evening a short whip on WSPR2 MF.
From: IK1WVQ Mauro <[email protected]>
Date: Sun, 14 Feb 2016 12:35:41 +0100
In-reply-to: <3981E6D8F52B4389AF4A28205EA12878@pcn5>
References: <3981E6D8F52B4389AF4A28205EA12878@pcn5>
Reply-to: [email protected]
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interesting.
what "conterpoise" are you using ???

73 de Mauro IK1WVQ


At 11:37 14/02/2016, F6CNI - Andy - JN19QB wrote:

Hi All.



This evening Iâ??ll test on MF WSPR2 a short 5 meters long vertical whip. It is a thin wire inside a telescopic fiberglass fishing pole.



Including coil and ground resistances, the base impedance is 54 - 10100 j. The antenna needs about 3.4mH serial coil to tune it.



Computed effeciency is ? 33 dB. Using 1 Watt output TX for this test, the expected ERP is 0.5 mW and 0.75 mW for the EIRP.



Base current is 135 mA and RMS RF voltage is 1350 V.



Reports be welcome.



73 de Andy.



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