Topband: Flag close to tower?
Bob K6UJ
k6uj at pacbell.net
Thu Sep 22 13:52:25 EDT 2016
I am thinking of trying a rotatable flag for 160.
I have a small lot and the farthest distance I can install the flag from
my tower is 35 feet. Since it will be rotatable I assume I can aim the
null
at the tower to minimize any intereaction. Is it worth trying or not ?
I read somewhere that the K9AY loop antenna can perform fairly close to
a tower, but how about a flag ?
Bob
K6UJ
On 9/22/16 10:11 AM, Paul Mclaren wrote:
> Bruce,
>
> Yes, yes and yes. 9:1 transformers, beverage friendly resistors (cant
> remember the exact spec) with about 1" connection to the ground rods.
> Ground rods not that long but shallow clay bed here anyway and a mossy lawn
> due to the lack of drainage so fair conductivity. Coax is just pushed about
> 1" into a slit in the lawn so not ideal and needs a more permanent
> solution. To be honest it was a quick and dirty experiment so will get
> improved when I do some landscaping the xyl has requested which naturally
> will include new buried coax conduits and more radials.
>
> Regards
>
> Paul MM0ZBH
>
>
>
>
>
> On Thu, 22 Sep 2016 at 17:57, K1FZ-Bruce <k1fz at myfairpoint.net> wrote:
>
>> Hi Paul,
>>
>>
>>
>> Glad you are ready to work DX
>>
>>
>>
>> Are the Beverage antenna transformer and termination resistor close to
>> the ground rods, with short interconnect wires.?
>>
>>
>>
>> Are your coax cables buried to help with noise pick up.?
>>
>>
>>
>> Some of the small metal loops are not as good as the larger wire home
>> built ones.
>>
>> DX is getting much better most notice-able at sunrise & sunset.
>>
>>
>>
>> 73
>>
>> Bruce
>>
>>
>>
>> On Thu, 22 Sep 2016 17:25:25 +0100, Paul Mclaren <paul.mcl at gmail.com>
>> wrote:
>>
>> I am in that category only having put up inverted L for 160m as an
>> extension on my 40m quarterwave vertical recently. Receive antennas are
>> Wellbrook loop and a couple of 40m beverages point NE/SW on top of a 7 foot
>> high boundary wall. This was only put in place in the summer so yet to try
>> my first winter and can't really believe I will hear anything Stateside or
>> beyond - my best DX so far with limited effort is A65. The beverages are
>> not very directional on 160m but hear into the local suburban noise better
>> than the loop plus they work well on 80m and 40m RX as a bonus.
>>
>> I'll take any criticism going but for a normal UK house my garden is
>> pretty average so I have to make do.
>>
>> Regards
>>
>> Paul MM0ZBH
>>
>> Bruce-k1fz
>>> http://www.qsl.net/k1fz/flag_antennas.html
>>> _________________
>>> Topband Reflector Archives - http://www.contesting.com/_topband
>>
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