[TowerTalk] LMR-900

[Roger (K8RI)]

On 7/16/2010 10:44 PM, Steve Maki wrote:
> Roger (K8RI) wrote:
>
>    
>>>> It is extremely unusual to see an amateur installation using a size larger
>>>> than LMR600.
>>>>          
>    
>>> I would say unusual, but not extremely unusual. In fact there is a lot
>>> of 1-5/8" Heliax out there. I know, I'm nit-picking :)
>>>        
>    
>> My entire system is LMR-600 with the exception of some Davis
>> BuryFlex(TM) pigtails, and drops to the 80 meter slopers. I use RG-8X to
>> the 40 meter half wave slopers. I opted for the 8X due to the small
>> size, low wind resistance, relatively short runs (bout 40') and low SWR
>> on 40.  The voltages get too high at the 80 meter band edges for the
>> 8X.  I don't know how long it'll stand up to the legal limit, but it's
>> done fine so far.
>>
>> NOW for both ends of the spectrum, if I could find some 7/8, to 1 1/4
>> Heliax cheap with connectors, I'd certainly use it for 160 meters as
>> well as 50, 144, and 440. With HF I'd stick with the LMR 600 as the
>> overall runs are about 228' (EXCEPT)OTOH there's probably not a
>> noticeable difference between the 400 and 400 80 through 10 even with
>> 228 feet of coax.  OTOH we are limited to 50 watts output on the 440
>> band in this area so I want to get every watt to the antenna possible.
>>      
>
> I've got long runs to deal with - 500' to the base of one tower, 400' to
> another, etc., and good stock on 1-5/8" Heliax and 1-5/8" Cell Reach, so
> you can guess what became irresistible.
>
> Plus I sold tons of it to others, so I know it's out there.
>    
First, I doubt that either of us have typical systems and yours if 
welll...I hate to admit it, but yours is bigger than mine.
I'm not sure if I'd have enough muscle to pull that stuff up the tower 
and it's only a 100' <:-))
However if I could find it at a reasonable price I'd make at least two 
runs of it from the house to tower, shop to tower, and to the top of the 
tower.

What I'd prefer though is:  3, or 4, 80' runs,  3, or 4 110' runs, and 
and 4 60' runs.  That comes out to 24 connectors.  I need 144 and 440 
capability simultaneously from either the shop or house as well as two 
stations on HF which is basically what I've been running and am now 
working to reestablish with the new, or repaired antennas and  feed lines.

But being constrained by being retired and a falling stock market I've 
settled for a bit less.<sigh>

73

Roger (K8RI)

> -Steve K8LX
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