[TowerTalk] Ask the experts

[Cedrick "Fred" Johnson - WT2P]

..careful of who you call stupid or cheap... What you see.. is not 
always exactly what you get...



wt2p


>
> Jim Brown wrote:
>   
>>> This "Mosley Bashing" has finally hit my button !!
>>> I have  a PRO-57A and am very satisfied with it. It
>>> is my understanding that  subsequent models were
>>> "improved". I have not seen any published data  from
>>> verifiable sources except those peddling their
>>> "comparisons" which  I don't intend to pay for.
>>>       
>> And YOU have hit mine!!! 
>>
>> Do you have a clue about how much work it takes to obtain ACCURATE 
>> data on the performance of an antenna?  To measure the gain, you 
>> must build the antenna, get it up in the air on a substantial 
>> tower and rotor in some test range where there is nothing to 
>> seriously distort the data, make sure that it is properly tuned, 
>> drive it with a transmitter, and MEASURE the field strength at 
>> some distance that is representative of its far field pattern. To 
>> measure the pattern, you must repeat those measurements every 5-10 
>> degrees. 4-5 guys could easily work a full day to do that if the 
>> transmitting and receiving towers were already there and nothing 
>> went wrong. It could easily take twice that time if Mr Murphy came 
>> to call. 
>>
>> To measure another antenna, you must take the first one down, put 
>> the new one up, and repeat that process. And, of course, you must 
>> have purchased or borrowed the antenna in the first place. And 
>> even if it was borrowed or donated, you still must spend the time 
>> and money to unpack, handle, repack, and return it. 
>>
>> Those "peddling their comparisons" have HUNDREDS  of man hours and 
>> a significant dollar investment in those measurements, and YOU are 
>> either too stupid or too cheap to contribute to their work. You 
>> clearly don't deserve to benefit from it. 
>>
>> 73,
>>
>> Jim Brown K9YC
>>
>>
>> _______________________________________________
>>
>>
>>
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>>     
>
>