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eHam Forums / Antennas and Towers and more / RE: Proper roof peak antenna grounding
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on: April 16, 2013, 02:37:33 PM
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Roof peak located at an end of the roof? Run the proper size wire such as, yes a large conductor like #2 from the top of the pipe "not the bottom". For example, the nearest junction where the antenna base clamps onto the pipe or pole. If you can slide the antenna down slightly in order to leave the pole protruding above the antenna is the "Ideal".
Route the large conductor straight down to an minimal 8 ft length Copper clad Earthing rod and use a ground rod clamp. Weather proof all the connections.
This is for antenna lightning protection path to Earth "outside" you can daisy chain more ground rods every 5ft and use 4ft rods and en circle the home for really good lightning protection.
For your DC safety station ground do NOT connect the rig and equipment to the antenna lightning Earthing rod.
rather do connect the rig and equipment to the AC Electrical mains panel marked GND.
Keep the rig Safety Ground separate from the antenna lightning ground system.
In short separate the antenna earthing system from the Rig safety dc system.
Even though the large lightning stroke can rise the voltage gradient potential enough to impose a commonality relevant to the two individual systems the inductance is minimized by your contributing systems isolation relative through the soil mediums and distance apart.
73
I always thought that all parts of a ground system are supposed to be bonded together, to keep every part at the same potential. |
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eHam Forums / CW / RE: Back on air !
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on: January 27, 2013, 04:38:39 PM
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Welcome back. I just got back on the air after a 5 year hiatus. Had to take down my R7 vertical (which was malfuntioning) to have a new roof installed. Just finished fixing the antenna (mostly) and got it back up in September. Getting my CW speed up and having fun.
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eHam Forums / CW / RE: Bencher By-1 vs By-2?
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on: January 27, 2013, 04:34:15 PM
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I just acquired a used BY-2. The rubber feet were hard and dried out. I slid all over the place. I went to the hardware section of my local home improvement center and got new stick on feet. PROBLEM SOLVED. These are my first set of paddles. So far I am liking them.
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8
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eHam Forums / Boat Anchors / Need help with Halli. SX-71
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on: January 19, 2013, 06:26:31 AM
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I'm in the process of restoring an sx-71. When I got it, it had virtually no reception above the broadcast band and the S meter did not function.
I did the usual, replaced the lytic and paper caps, out of spec resistors, cleaned all switches and pots, checked tubes, etc.
Went through the alignment also.
The radio now has sensitivity and the S meter works on all bands, except band 3.
On band 3 the meter stays all the way to the right like when the radio is off and I can only hear my signal generator with no band noise.
I'm wondering if its something in the bandswitching circuitry.
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eHam Forums / CW / RE: Guidance from BUG users please.
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on: January 18, 2013, 04:19:24 PM
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My Dad is lending me his Bencher Paddles. I've tried them on the rare occasion at his station. I like the short throw (like in manual transmissions). Maybe I was not cut out to use a bug.
If I like the paddles I'll buy a pair of my own.
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eHam Forums / CW / RE: Guidance from BUG users please.
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on: January 14, 2013, 05:33:36 PM
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Thanks for the help everyone.
Well I decided that trying to learn to send with right hand is totally out of the question. Its just like trying to shave, brush your teeth, etc. with your off hand. You can get by, but its awkward.
I backed off both adjustments to get more swing. I never saw another op using a bug untill looking online. I always thought it had to be tight like a pair of paddles. I reversed the knob and paddle. With more swing and not being afraid to "man handle" the key alittle, I am sending better.
So the only thing that is technically "wrong" is I am still making dits with my finger and dahs with my thumb. But I think I am better to just hone my skills with the bug I have, Even if I got a lefthanded bug tomorrow, I would then have to teach the thumb to do dits and finger to do dahs and seems too extreme.
Hey Jimmy Hendricks was lefty and learned to play a righthanded guitar.
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eHam Forums / CW / Guidance from BUG users please.
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on: January 13, 2013, 06:45:34 AM
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Well check this out. I have been licensed for over 30 years and been active on and off for various reasons.
I've always loved CW and have been using a Bug. Although my fist is "alright", its not like some of the elite bug users out there.
So I started doing research on the internet to see how others use their bugs and discovered two things. I am LEFTHANDED and have been using a RIGHTHAND key all this time. I never new untill now that Vibroplex makes special order LEFTHANDED keys.
So what do I do, try to improve my skills sending with the lefthand and a backwards key or try to retrain my brain.
On a somewhat different note, I noticed all the good Bug users on YouTube operate their Bugs with a lot of swing. I'll have to "open" mine up for sure.
Go to YouTube and see Denise Stoops (aka DA) of coastal station KPH send code. She handles a Bug with such precision.
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