KingCobra_CDX882 said:
OK but it is easier to just do total losses like 1.155 - 0.32175 = 0.83325 dB and be done with it.
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lmr 400
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OK but it is easier to just do total losses like 1.155 - 0.32175 = 0.83325 dB and be done with it.
all sources don't always agree with one another, you know how it goes.
http://www.therfc.com/powerrat.htm#LDF550A
do you have another source for cable losses besides this one?
http://www.therfc.com/attenrat.htm#LDF550A
http://www.therfc.com/powerrat.htm#LDF550A
do you have another source for cable losses besides this one?
http://www.therfc.com/attenrat.htm#LDF550A
That's why I posted the link to the people that should know.The people that actually make the stuff. 
I will admit to usuing the link you did in an earlier post and see that perhaps I should not have. Oh well it's close enough for CB work.
I will admit to usuing the link you did in an earlier post and see that perhaps I should not have. Oh well it's close enough for CB work.
yes...
but at 30 Mhz it handles 14,100 watts
i just estimatted at 10,000
i got my coax from www.tessco.com
http://www.tessco.com/products/displayProductInfo.do?sku=471168&eventPage=2
but at 30 Mhz it handles 14,100 watts
i just estimatted at 10,000
i got my coax from www.tessco.com
http://www.tessco.com/products/displayProductInfo.do?sku=471168&eventPage=2
QRN
I agree....i figured
OK but it is easier to just do total losses like 1.155 - 0.32175 = 0.83325 dB and be done with it.
would be too long numbers for most to understand
I agree....i figured
OK but it is easier to just do total losses like 1.155 - 0.32175 = 0.83325 dB and be done with it.
would be too long numbers for most to understand
so at the loss figure of .83 @ 100W out of the transmitter that means that 82.5W is delivered to the feedpoint of the antenna. you're still paying $5.00 a foot extra to save only part of 17.5W.
or to demonstrate further just how insignificant the the loss is:
we could be talking about 10W out and 8.25W at the antenna, or 1W and 825 MW.
the return doesn't justify the expense. there's no appreciable anything. go figure the DOLLARS per WATT on that deal. did you say the run was about 165'? so you spent $825.00 (not including connectors) to do what exactly? let's just say for arguments sake that you saved the entire 17.5W. that's about $47.14 per watt, only problem is you paid even more than that, connectors and all.
or to demonstrate further just how insignificant the the loss is:
we could be talking about 10W out and 8.25W at the antenna, or 1W and 825 MW.
the return doesn't justify the expense. there's no appreciable anything. go figure the DOLLARS per WATT on that deal. did you say the run was about 165'? so you spent $825.00 (not including connectors) to do what exactly? let's just say for arguments sake that you saved the entire 17.5W. that's about $47.14 per watt, only problem is you paid even more than that, connectors and all.
i dis agree
seems to me...
when i when to heliax
i heard better then i had ever on LMR400
also good were any and all interference
but again
to eaches own
i like ladder line
it is cheep and great lack of losses
but it has its problems as well
heliax works for me
seems to me...
when i when to heliax
i heard better then i had ever on LMR400
also good were any and all interference
but again
to eaches own
i like ladder line
it is cheep and great lack of losses
but it has its problems as well
heliax works for me