[TowerTalk] Fw: four square box

[Mark Robinson]

I have metal field mesh fences in my 40m four square field and I don't see
 any problems. How far away from the fence is your array going to be? . I
 must be at least 60 feet from the fence at it's closest point although I
 haven't measured it exactly.

 Mark N1UK



>
>
> ----- Original Message ----- 
> From: "Jeff Blaine" <keepwalking188 at yahoo.com>
> To: <k3lr at k3lr.com>; <towertalk at contesting.com>
> Sent: Thursday, 30 August, 2012 11:39 AM
> Subject: Re: [TowerTalk] four square box
>
>
>> Thanks Tim,
>>
>> Last question.
>>
>> There is a barbed wire fence which runs for many hundred feet in both 
>> directions adjacent the location of the 40m and 80m square sites.
>>
>> I assume given the length of the barbed wire fence it's not going to 
>> couple significantly and thus would not give me a problem?
>>
>> 73/jeff/ac0c
>> www.ac0c.com
>> alpha-charlie-zero-charlie
>>
>> -----Original Message----- 
>> From: Tim Duffy K3LR
>> Sent: Thursday, August 30, 2012 10:29 AM
>> To: 'Jeff Blaine' ; towertalk at contesting.com
>> Subject: RE: [TowerTalk] four square box
>>
>> Hi Jeff:
>>
>> As you can see from the on line manuals and photos - they are physically
>> close. The housings are just a little different.
>>
>> I only used the DXE box for a test. I have used the Comtek box for over 
>> 20
>> years - so it is reliable and durable. I am using Comtek boxes on four
>> square antenna systems on 80, 40, 20, 15 and 10 meters. They all work 
>> great.
>>
>> I don't think you can go wrong with either box for driving a four square
>> array.
>>
>> 73,
>> Tim K3LR
>>
>> -----Original Message-----
>> From: towertalk-bounces at contesting.com
>> [mailto:towertalk-bounces at contesting.com] On Behalf Of Jeff Blaine
>> Sent: Wednesday, August 29, 2012 9:29 PM
>> To: k3lr at k3lr.com; towertalk at contesting.com
>> Subject: Re: [TowerTalk] four square box
>>
>> Thanks Tim,
>>
>> I thought they would be similar.  Any delta in reliability, durability or
>> other kinds of creature comforts?
>>
>> 73/jeff/ac0c
>> www.ac0c.com
>> alpha-charlie-zero-charlie
>>
>> -----Original Message----- 
>> From: Tim Duffy K3LR
>> Sent: Wednesday, August 29, 2012 9:17 PM
>> To: 'Jeff Blaine' ; towertalk at contesting.com
>> Subject: Re: [TowerTalk] four square box
>>
>> Hello Jeff:
>>
>> I have tested and used both of these units. With ground mounted mono band
>> verticals - the performance difference between the two was not 
>> significant
>> on 80 meters.
>>
>> As a test - we installed the DXE unit in one four square and the Comtek 
>> unit
>> in another other four square - so side by side near field and DX 
>> operational
>> measurements could be made at the exact same time.
>>
>> The forward gain from the array was the same (within .1 dB near field). 
>> The
>> front to back null was within 2 dB, DXE vs. Comtek. The amount of power 
>> at
>> the dump port was within 1 dB.
>>
>> Both units give excellent on air results.
>>
>> 73,
>> Tim K3LR
>>
>> -----Original Message-----
>> From: towertalk-bounces at contesting.com
>> [mailto:towertalk-bounces at contesting.com] On Behalf Of Jeff Blaine
>> Sent: Wednesday, August 29, 2012 9:07 PM
>> To: towertalk at contesting.com
>> Subject: [TowerTalk] four square box
>>
>> Is there a general consensus on preference between the performance of the
>> Comtek and DX Engineering units?
>>
>> 73/jeff/ac0c
>> www.ac0c.com
>> alpha-charlie-zero-charlie
>>
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