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Coax or Ladderline for your antenna system??




 
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Author Topic: Coax or Ladderline for your antenna system??  (Read 20309 times)
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w5omr
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« Reply #50 on: October 30, 2007, 02:21:39 PM »

I'm constantly told that the mere 100w I run (according to the meters and gauges) sounds like other stations that are running 300w or better, with better-than-average audio.
Well, of course they say that, because you're big and scary Geoff. They don't want you dropping a 610 on them.   Grin

I'm told you're no small fry yerself, Todd. 

We'll have to get into a 'belly bumping' contest when we do get to eyeball each other

;-)
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Steve - WB3HUZ
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« Reply #51 on: October 30, 2007, 03:30:24 PM »

Quote
with better-than-average audio

Now that is REALLY cool. You new antenna improved your audio too!
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Vortex Joe - N3IBX
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« Reply #52 on: October 30, 2007, 04:14:16 PM »

Quote
with better-than-average audio

Now that is REALLY cool. You new antenna improved your audio too!

That's quite a message!
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Joe Cro N3IBX

Anything that is Breadboarded,Black Crackle, or that squeals when you tune it gives me MAJOR WOOD!
Todd, KA1KAQ
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« Reply #53 on: October 30, 2007, 04:21:22 PM »


I'm told you're no small fry yerself, Todd. 


You've got me by about 80 lbs and an inch. I haven't yet developed a 'belly', too busy with other stuff. Work is progressing on the pod though, a.k.a. the ToddPod. There's still a ways to go.

Quote

We'll have to get into a 'belly bumping' contest when we do get to eyeball each other

;-)


No, bumping is out. I've been told that my brains are down in that region, and I don't want to suffer a concussion.




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known as The Voice of Vermont in a previous life
w5omr
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« Reply #54 on: October 30, 2007, 04:42:15 PM »

Since when does emitting a stronger AM RF signal NOT make the received audio sound better?

Mack

Quote
with better-than-average audio

Now that is REALLY cool. You new antenna improved your audio too!

Steve was making a 'funny', poking at me about my writing style (or lack thereof).

That was just what commonly comes along with the report.  Since moving to Ladder line and the Delta Loop, instead of coax and an inverted vee, the signals reports from towards the north of Texas (day-light hour QSO's) have been consistently better than what I used to get.

Looking forward to tonight, when I'm gonna slide the rig down below 3.800 and see if ol' Todd is paying attention.

Todd!  Yer only 6'2" and 220?

Yer a WIMP!

;-)
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w5omr
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« Reply #55 on: October 30, 2007, 05:21:36 PM »


I still think Lemon James can take you!

Mack

I dunno about that, but damn, wouldn't it be fun trying?

 Grin
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Steve - WB3HUZ
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« Reply #56 on: October 30, 2007, 08:58:02 PM »

Good point! Makes any audio a more enjoyable listen.


Since when does emitting a stronger AM RF signal NOT make the received audio sound better?

Mack

Quote
with better-than-average audio

Now that is REALLY cool. You new antenna improved your audio too!
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ka2zni
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« Reply #57 on: October 31, 2007, 05:49:12 AM »

Some good info on wet ladder line losses below.

http://www.vk1od.net/G5RV/
http://www.ocarc.ca/coax.htm
http://users.triconet.org/wesandlinda/ladder_line.pdf



And the spark plug based arc gap design some one asked about previously is at

http://www.athensarc.org/ladder.asp

That's some good reading.. Thanks for passing that along.
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ka2zni
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« Reply #58 on: October 31, 2007, 06:23:12 AM »

Kevin,
        I have never heard of or seen a "Palstar" tuna. If it was created for the ssb / ricebox groups, it may well not handle the duty cycle of high powered AM. My tuna is homebrew, it will handle anything that you can throw at it.

                                                   The Slab Bacon

http://www.eham.net/reviews/detail/4517

http://www.palstar.com/qstAT1500bal.pdf

I based my buy on these 2 articles/reviews... I work 21-28 days straight at a clip owning my own trucking buisness, I barely have enough time/energy these days to do much but enjoy what I do have, so find myself relying on store bought products for now. Once things slow down a bit I will have more time for brewing/tinkering.

The tuner would not be adequate for the "Big Strappers" but 1500 watts it will handle without trouble, It holds it steady on the dry days, Just wanders when it's wet out, leading me to believe it is indeed the 450Ohm stuff getting wet and the swr varying..
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Steve - WB3HUZ
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« Reply #59 on: October 31, 2007, 10:22:04 AM »

Quote
believe it is indeed the 450Ohm stuff getting wet and the swr varying..


For sure. The tuner is not the problem.
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