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To: "[email protected]" <[email protected]>
Subject: Re: LF: RE: O.T.: T2FD ANTENNA
From: Mal Hamilton <[email protected]>
Date: Sat, 19 Mar 2016 16:44:58 +0000
In-reply-to: <[email protected]>
References: <[email protected]> <[email protected]> <[email protected]om> <[email protected]> <[email protected]> <[email protected]> <[email protected]> <[email protected]> <[email protected]> <[email protected]> <[email protected]> <[email protected]>
Reply-to: [email protected]
Sender: [email protected]
This type of aerial goes back to at least the 1950's and had 3 wires in a 
sloping config making it broad band with a term resistor
Called a SFTD and used commercially


On 19 Mar 2016, at 09:32, Mal Hamilton <[email protected]> wrote:

> Good RX Aerial 
> SFTD------
> Sloping Folded Terminated Dipole
> On 19 Mar 2016, at 08:45, "Clemens Paul" <[email protected]> wrote:
>> Hi Mauro,
>> I have no hands on experience with this antenna,
>> but simulations by experts have shown that one should go for a ~900 Ohm
>> termination resistor and at least 50m length if you want to keep losses
>> acceptable (5dB) on 3.5MHz.
>> I'll send you the article per PM.
>> 73
>> Clemens
>> DL4RAJ 
>>> -----Original Message-----
>>> From: [email protected] 
>>> [mailto:[email protected]] On Behalf Of IK1WVQ Mauro
>>> Sent: Friday, March 18, 2016 6:13 PM
>>> To: [email protected]
>>> Subject: LF: O.T.: T2FD ANTENNA
>>> Hi to all,
>>> someone has experience about the T2FD (Tilted Terminated Folded 
>>> Dipole) antenna ?
>>> My need is a broadband antenna from 3.5 to 14Mhz WITHOUT any matching 
>>> unit (TX 2W max)...
>>> I gladly accept to lose 30% power into the resistive termination, if 
>>> this is the bandwidth price !!
>>> 73 de Mauro IK1WVQ

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