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136
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eHam Forums / Company Reviews / RE: Universal Radio
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on: April 12, 2012, 06:16:09 AM
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Universal is an ICOM servicing center. Hence they should be capable of doing what needs to be done...be it repairs or modifications.
However when my IC7600 failed, I called ICOM Bellvue, Washington, and when I asked about taking it in to the close by Universal Repair Center, they told me to send it to them in WA. Hmmm.
On a side note: I once found the perfect Ford conversion van new at a huge Columbus OH dealer. Told the saleman Id be back first thing tomorrow with my trade in and the cash necessary to buy the van. You got it. I returned the next morning at 9 am and the van was nowhere to be found. SOLD! right out from under me. Last time I dealt with R......I mean THEM! Grrr.
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137
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eHam Forums / Antennas and Towers and more / Best hexbeam is....?
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on: April 12, 2012, 06:04:16 AM
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or are they all the same - other than price?
Am looking for easy assemble-easy take-down-simple reassembly without the parts getting scrambled in the process.
Also, any opeating differences of note between the three main competitors that I know of?
And reliability/durability issues?
Impact of height above ground on performance? Although we plan to use ours at around 30 ft...it might go as high as 50 ft.
Tnx.
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143
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eHam Forums / Special Event Stations / ARBOR DAY Special Event Station-Licking Co., OH.-Sat. April 28, 2012 -10am-4pm
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on: March 22, 2012, 01:34:22 PM
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COOKEN ARC will once again be manning W8TNX at the well-known Dawes Arboretum, in Licking County, Central Ohio,
W8TNX activity will be SSB only, around 7.225khz. eQSLs via LOTW.
If you're in Ohio, think about taking a spin to see the arboretum's Spring Offerings, programs, gift shop, etc. And maybe even have an eye-ball qso with the COOKEN gang while youre at it.
If driving in is out of the question, please say Hi! on 40m or via the 88 machine.
Talk-in is via the 146.88 machine in Newark.
................The Cooken Gang.
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144
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eHam Forums / Antennas and Towers and more / RE: Rohn Tower Top Section Vs. Thrust Bearing
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on: March 22, 2012, 06:30:48 AM
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Here's one more option, for larger antennas, and for stacking them vertically.
I used quarter inch wall x 2 ID x 20 ft length of 6061T6 aluminum alloy , set into the Ham 4 rotator installed at the base of my top 8 ft aluminum tower section. A thrust bearing was mounted into the top flat section of the tower.
So 8 ft of mast was inside the tower and 12 ft. extended above it, where I mounted a KT-34XA 32 ft boom tribander about 2 ft up from the tower, and an 11 el. 2m Boomer 7 ft above that.
Originally, I started out with a HyGain 204BA yagi at the bottom and a DB10-15 duoband yagi 8 ft above and the 2m Boomer 3 ft above that. I designed wind loads for 100 mph winds with 20% safety factor.
This was on top of a Heights 56 ft aluminum tower. Again, designed to handle 100 mph winds with the original antennas, and no guys. Then I guyed the tower at the top only, for another safety factor.
Never had a problem with the tower, though I did have one element come loose and rotate, one time. And one of he two antenna to mast u bolts snapped in extreme winter cold ( presumably from overtightening).
I also drilled thru the mast and installed a set screw to keep the mast from changing direction in winds.
The tower was up for 18 years.
When I took it down the last time ( to move to a deed restricted area) I noticed the three 3/8" dia. bolts through the base of the hinged tower upon which the mast sat had worn through by about a third, and the holes in the tower that they ran through had enlarged by about a third. I couldnt tell any difference in the towers behavior in winds although Im sure it may have moved a bit. So old especially aluminum towers should be examined at the base bolts, but since the steel bolts wore, Id extend that to say ALL towers should have their bolts examined and replaced as necessary, with stainless steel bolts ( as these were.)
The antennas on that 20 ft mast ( 12' exposed) would dance definitely around and sway but the strength of the aluminum alloy was enough to handle it through several instances of 70-75 mph winds and many days of winds in the 50+ range.
Overdesigning the mast ( the most common failure point) is always a good move. And using set screws to lock the mast to the rotator will save you tower climbing for sure.
Good luck.
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145
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eHam Forums / Misc / RE: USB on 7.230 40 meters?
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on: March 18, 2012, 12:00:52 PM
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Yep. Unconventional. And while there are those who only operate within the GAAP (generally accepted amateur practices) there are those who revel in doing the opposite.
You can join them or choose to ignore them, whichever the case may be.
Just like intentional interference, growling at the clowns only makes them more motived to create their form of mayhem. Gritting your teeth and ignoring them is the best way.
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146
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eHam Forums / Misc / RE: Rules violations on 60 meters
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on: March 18, 2012, 11:45:41 AM
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Time for ARRL to get things resolved.
60 has been enjoyable here in Ohio, and only one strong but reasonably polite request for a Quick EMCOMM Net to go elsewhere since the channel is a recognized DX channel. Since the primary purpose of 60M is for emcomm raffic ( which is very limited to date) Id say the nets can have their quick schedules to get the hang of the propagation and each others capabilities.
That said, we use the channels or lose them so all kinds of approved activities should be encouraged until Disaster Time/Emcomm/.
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149
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eHam Forums / Clubs / How many clubs participate in their state qso party?
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on: March 07, 2012, 05:37:44 PM
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The OhQP is exceptionally well run, and points out the number of ways a club can get involved in the fun: portable ops, mobiling through rare counties, qrp/low or high power, single or multi-op, aeronautical mobile!, etc. I like the multi-op, multi-station, portable approach, running 100w. Gets a lot of guys involved. Lets each one organize around one or two bands. Experiment with antennas. Form small groups and get the job done. You dont need an hierarchy. Just guys who can work together. Even guys who cant work together!
A one day contest in nature during late August is a great way to spend some time.
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