Topband: New 160M high performance receiving antenna at W3LPL

Shoppa, Tim tshoppa at wmata.com
Mon Feb 4 11:56:27 EST 2013


Out of curiosity... with so many narrow-pattern receive antenna configs, how do typical contest stations check different directions after a CQ? Frank, I still want to come visit your station during a test and see how it all works.

Diversity and stereo headphones gets you to two different directions but I wonder if there's some more powerful technique.

My station is much more modest, just a K9AY loop, and I rigged up a footswitch system to let me scan different directions after CQ'ing in the contests. Still, Bernie at J77A told me that I was ignoring him after my CQ's during the CQ 160 CW, and I'm guessing that's because I was mostly listening to the NE for Europe and neglecting to scan the other directions.

Also, another one I suspect I may have missed by not rotating receive religiously, was ZS6EZ, who I heard clear as day doing S&P with others.

Tim N3QE

-----Original Message-----
From: Topband [mailto:topband-bounces at contesting.com] On Behalf Of Eric NO3M
Sent: Monday, February 04, 2013 1:56 AM
To: topband at contesting.com
Subject: Re: Topband: New 160M high performance receiving antenna at W3LPL

In case anyone is interested in constructing a switchable 8-circle based on the BSEF array, W9RE's PCB is laid out with provisions for Magic-Ts and step-up auto-transformers where applicable, also the phase inverter.  I finally got my array up using Mike's board a week or so before ARRL160 and it does quite well against the broadside beverage arrays, especially useful for diversity reception.

73 - Eric NO3M

On 02/03/13 13:14, donovanf at starpower.net wrote:
> As you noticed after writing your 0013Z email, I'm using three 75 ohm 
> Magic-T combiners as suggested by W1MK.  The
>
>
>> From: "Lee K7TJR"<k7tjr at msn.com>
>>
>>    A combiner with a little more complicated impedance matching would 
>> help this problem.
>>

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Topband Reflector


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