Re: [IRCA] Common-Mode Choke Designed for MW DXing

[Walter Salmaniw <canswl@xxxxxxxxx>]

Les, would this work with a Wellbrook ALA 100?   Walt Salmaniw

On Wednesday, 27 April 2016, Les Rayburn <les@xxxxxxxxxxxxxxxx> wrote:

> In response to several requests from both MW DXâers and 160 Meter
> enthusiasts, MyAntenna.com has added a new receive-only common-mode choke
> to their line of impressive products. This common mode choke can be
> inserted anywhere in the feed line to your BOG, active whip, loop, etc. The
> choke blocks unwanted noise that is often picked up by the coax as it
> travels from the antenna back to your shack.
>
> Many manufacturers claim that their chokes will work over impossible
> bandwidth of frequencies, which simply isnât possible. In contrast, these
> chokes are designed to work over a limited range of frequencies. In this
> case itâs 500 KHz to 10 MHz.
>
> Common-mode attenuation: ~37dB
> Choking Impedance >5,000 Ohms
>
> The choke will allow DC power to pass through to active antennas, and can
> be inserted anywhere in the feed line, including inside the shack. For best
> results, itâs recommended that the choke be installed about 20 feet from
> the antenna. I have no financial relationship with the company, but am a
> satisfied customer.
>
>
>
> http://myantennas.com/wp/product/cmc-0510-r/
>
> If you have EMI/RFI problems or just want to reduce the noise floor to
> your receiver, you canât go wrong by installing good quality common-mode
> chokes in your system.
>
>
> 73,
>
> Les Rayburn, N1LF
> 121 Mayfair Park
> Maylene, AL
> EM63nf
>
> Member WTFDA, IRCA, NRC. Former CPC Chairman for NRC & IRCA.
>
> Elad FDM-S2 SDR, AirSpy SDR, Quantum Phaser, Wellbrook ALA1530 Loop,
> Wellbrook Flag, Clifton Labs Active Whip.
>
>
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Be sure to register now for the Joint DX Convention
Kansas City, September 9 to 11.  Hotel space is filling up.
Registration info:
http://www.nrcdxas.org


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