| Author |
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307 (307)
| | Posted on Wednesday, July 18, 2001 - 7:10 pm: | 
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For all of you big-CB-boys and girls , Go grab a 4 foot flourescent lamp , turn on your amp , put the bulb next to the antenna to get it lit (keyed up) and walk away slowly. Be honest in your measurements as to how far you can walk away and still have the bulb lit (it takes two people). I am at a cool 13 feet! |
HAM CBer
| | Posted on Thursday, July 19, 2001 - 10:01 am: |
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Since I'm sure nobody would beleive my measured distance, I tried to videotape it once. The camcorder just ejects the tape. So, 307... Next time you're in the area, would you be willing to be my witness????
BTW: +/- 75 feet. |
Metrocat
| | Posted on Friday, July 20, 2001 - 1:12 am: |
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Newbie here, what is this all about?
Metrocat |
Metrocat
| | Posted on Friday, July 20, 2001 - 11:31 pm: |
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Could I light one up with my VR9000 and KLV40 goin through a Wilson 5000? God what a cool trick to show my buddies!
Metrocat |
vernonott
| | Posted on Saturday, July 21, 2001 - 10:24 pm: |
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How about make the light go out.Every time I key up my big box the lights in my radio room will flicker at low power and go off on high power. |
HAM CBer
| | Posted on Sunday, July 22, 2001 - 2:15 am: |
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Maybe a seperate power plant! |
vernonott
| | Posted on Sunday, July 22, 2001 - 6:53 pm: |
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I like the power plant idea . |
Anonymous
| | Posted on Tuesday, July 24, 2001 - 3:32 pm: |
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I have heard to make sure to keep your fingers off the prongs at the end of the bulb or YOU will lite up  |
707
| | Posted on Tuesday, July 24, 2001 - 5:47 pm: |
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for a "cool look" I suppose one could fasten a couple of old fluorescent tubes to the antenna mast just below the antenna base...would certainly give the neighbors something to talk about. |
eagle
| | Posted on Saturday, July 28, 2001 - 7:36 pm: |
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How much power does it take to light the bulb? |
bruce
| | Posted on Saturday, July 28, 2001 - 9:48 pm: |
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do any of you remember " THE SPEAKING BEEKING " Ant of the early 1960's it was like a old super mag 1/2 wave base ant but had a LIGHT BULB in the top and the add READ GUIDS YOUR FRIENDS TO YOUR DOOR ! and the FCC too Ive always wondered how much power it took to light that thing. |
eagle
| | Posted on Saturday, July 28, 2001 - 11:13 pm: |
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Thanks for the response. I'll give it a try. |
bruce
| | Posted on Saturday, July 28, 2001 - 11:18 pm: |
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Ah yes the good old NE-2 power sniffer ! |
HAM CBer
| | Posted on Sunday, July 29, 2001 - 12:12 am: |
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And 55KW will get it to flicker at about 75 feet away. |
eagle
| | Posted on Sunday, July 29, 2001 - 2:07 am: |
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I tried the light bulb I don't think I'd win the prize but I did go 39'. My wife and I got a good kick out of it. This is the first night I've been on copper, its great. |
bruce
| | Posted on Sunday, July 29, 2001 - 8:38 pm: |
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not since i worked in Microwave R&D have i ever given any thought as to what my body would be doing if i could stand 55 foot from a ant and light a bulb. Ham cber do you smell a roast? I hope your still ok. |
HAM CBer
| | Posted on Monday, July 30, 2001 - 12:11 am: |
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I measured the V/m inside the building and outside near the tower. BIG difference! No way I would picnic near the tower with all the stuff on high power... Inside, it's less than 5.0 V/m. With a 200 foot run of 1 5/8 inch Heliax from the shack to the tower, that gets me far enough away that it's not worrysome. |
bruce
| | Posted on Monday, July 30, 2001 - 1:01 pm: |
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whoo you had me worried i had visions of you glowing in the dark |
HAM CBer
| | Posted on Monday, July 30, 2001 - 11:55 pm: |
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Nahh.... Actually, I can get 100 KW out of this rig, but the positive peak modulation goes to heck. I have never measured the mV/m at 100 KW... |
bruce
| | Posted on Tuesday, July 31, 2001 - 1:58 pm: |
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At 900 watts i was lighting lights accross the yard and 100 kw do your trees start to smoke? |
HAM CBer
| | Posted on Tuesday, July 31, 2001 - 9:16 pm: |
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No trees for a mile or so. Just some cows and a few acres of row crops. I am told that the water table has some of the most pure water around the area though! Hmmmm..... Maybe?? |
bruce
| | Posted on Tuesday, July 31, 2001 - 9:57 pm: |
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Hey this just hit me the max power my line will support is 44kw ( 440 @ 100 amp ) How in the heck do you power that thing and are you the cause of the western rolling black outs? |
HAM CBer
| | Posted on Wednesday, August 01, 2001 - 2:32 am: |
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Power is from industrial 440 VAC 3 phase. The big rig's HV supply voltage runs at 25 KV DC. Oh, when the power goes out, the diesel generator can only run the 10 KW rig.
Touch lamps??? You mean modulation controlled lamps! Don't have any to try it on. The flourescents inside won't stay on after the wall switch is off though. Not enough RF in the shack. All that insualtion wire over and around the building does a pretty good job. The antennas are a long way from the shack too. |
bruce
| | Posted on Wednesday, August 01, 2001 - 1:24 pm: |
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Wow my power company would love you. We are not allowed in this subdivision because of code to have anything bigger than 440@100 amps Home wireing here is all 220 split so that 110 to center can come in in 2 60 amp circuts. I went through all of the codes people at the last house which had fuses and 4 15 amp drops hell my ft-747 drew enough on the 50 amp supply that if i forgot and kicked on the air POOF went the fuse...... bummer. When i worked in MM wave R&D we wore film badges did you have to get any for the people around you ? |
vernonott
| | Posted on Wednesday, August 01, 2001 - 8:31 pm: |
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Flourescent lamps bite the dust yesterday at local Chevrolet dealer.Coon hunter with four wheel drive and 102" whip mounted on tool box on bed rails pulls into dealership for quick service and knocks out six flourescent lamps. |
HAM CBer
| | Posted on Thursday, August 02, 2001 - 12:57 am: |
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Did you at least get any coons on that trip? |
vernonott
| | Posted on Thursday, August 02, 2001 - 8:47 am: |
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No coons ,just one ticked off service manager. |
bruce
| | Posted on Thursday, August 02, 2001 - 11:03 am: |
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vernonott
My brother had a 6db gain (coliner) mobile antenna on the roof of his VW waggon. We have a bank here that the windows are underground. He pulled in and keep hearing a POW POW sound and like the coon hunter took out several bulbs except for being somewhat bent the antenna suvived |
Sonic
| | Posted on Saturday, August 04, 2001 - 8:00 am: |
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Another bulb trick:
I have a 1 foot flourescent black light bulb hanging by fishing line inside the cover of my 8 tube box. I painted up the transformer, tube sockets and some of the other small parts with flourescent paint. Between the glow of the tubes and the flourescent paint, it makes a nice effect in the shack for visitors. |
NLOCK
| | Posted on Saturday, August 11, 2001 - 1:04 am: |
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HELP. HELP, HELP,
HAVE A WHISTLER 700 CB, WITH NO TX
NEED SCHEMATICS EMAILED, PHOTOCOPY, ETC
NLOCK@OXFORD.NET
NORM |
thrasher
| | Posted on Sunday, August 12, 2001 - 4:08 am: |
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so what antenna do you run for 55kw? i can tell you that your not using a beam. |
HAM CBer
| | Posted on Sunday, August 12, 2001 - 11:01 pm: |
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I decline to share that information. Sorry. |
Anonymous
| | Posted on Monday, August 13, 2001 - 5:08 pm: |
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thats cause he is not telling the truth about 55 or 100 or whatever kw u got, its a lie |
vernonott
| | Posted on Monday, August 13, 2001 - 6:41 pm: |
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Now,now,lets not get testy. |
bruce
| | Posted on Tuesday, August 14, 2001 - 12:27 pm: |
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Vernonott do i detect a non belever? maby that is why he is ANONYMOUS ! |
vernonott
| | Posted on Tuesday, August 14, 2001 - 1:49 pm: |
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These guys are Anonymous because they are too lazy to type in a handle in the username field or they're from another forum and are protecting their privacy so to speak. |
Anonymous
| | Posted on Wednesday, August 15, 2001 - 3:01 am: |
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It would be great if the forum master would give us weekly updates on how many total anonymous users (like myself) are participating. Does the forum master have that capability? It sure is fun jumping in as anonymous and finding yourself with a multiple personality. |
bruce
| | Posted on Wednesday, August 15, 2001 - 1:06 pm: |
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vernonott some people think that to id themselfs is to endanger themselfs in some way. I normaly would use my call as my id but this is not the place for that so my REAL name will do.If somone does not beleve HAM cber or anyone else i realy dont know why they would not want to be known as the one who exposed the lie. HAM cber if he realy has such a setup knows where he stands techologly and otherwise. I take alot of crap at times but so what and if someone does not beleve him call his bluff. |
vernonott
| | Posted on Wednesday, August 15, 2001 - 8:53 pm: |
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Well,I among some others have had some postings not put in for one reason or another and every one of those I sent in had my name attached to it.Thats one of the biggest reasons some of the other forums are in trouble now.Even Charles Manson has something to say whether you agree with it or not.We are all adults and I think most of us can take a lickin' and keep on tickin'. |
Hamcber
| | Posted on Tuesday, October 23, 2001 - 1:40 am: |
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I ran across this photo of an antenna system just like mine. Only difference is that I only have 1 instead of 2.
http://www.boulder.nist.gov/timefreq/images/radiostations/wwvh-large/wwvh5.jpg
Is that what you were looking for? I don't want to put any pictures of mine up because it will give away my QTH. I'm sure you can respect that. |
dave
| | Posted on Wednesday, October 24, 2001 - 8:20 pm: |
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i could put it by mine,but 1 3/500 driving 2 3/500 i would have to walk a long way |
Hamcber
| | Posted on Thursday, October 25, 2001 - 3:38 am: |
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Taz.
Mine is fed with 1 5/8 inch Heliax. No, you can't 'feel' when it's on. No, there is no 'shed' or anything like that. The HV power supply is in its own room, but the main cabinets are in the same room of the shop with everything else (workbench, tools, etc.). There are a couple of blowers mounted in the wall behind the rig that pressurize the cabinet. The heated air exits out vents on top to the outside of the room.
It's not scary at all. No bangs (usually) or corona discharges. That's only in the movies. |
715
| | Posted on Thursday, November 01, 2001 - 5:44 pm: |
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what do you mean "bangs"??? |
DXer4ever
| | Posted on Friday, November 16, 2001 - 11:56 pm: |
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got a better idea than a flourescent that i've been practicing, neon bulbs in different colors, it's attractive specially w/ the sideband modulation, blinks a lot. |
HAM CBer
| | Posted on Saturday, November 17, 2001 - 7:29 pm: |
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Hey 715.
I didn't see your post until just now.
'BANG' occurs when the 25 KV supply goes to ground in a violent manner, usually without warning. It is usually accompanied by uncontrolled cussing, ears ringing, and skin crawling. It's about like someone sneaking up behind you and shooting a 9mm.
I have only had it 'BANG' a couple of times over the last few years. Last time was when it lost an HV supply filter cap (1 of the 3). Hit the plate switch and BANG!!! $2,300.00 later, there have been no more bangs since. |
715
| | Posted on Sunday, November 18, 2001 - 10:52 am: |
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wow, that seems pretty interesting, where can i find a website about this? |
Hamcber
| | Posted on Sunday, November 18, 2001 - 2:19 pm: |
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About BANGS???
I have no idea. If you want to see other shortwave transmitters, do a web search for "shortwave transmitter" +"pictures". I don't have any pictures of mine online. There are a LOT of hams that convert old AM broadcast and shortwave transmitters for use on the ham bands though. Some even work on 11 meters.... Hmmm...... |
-=BOO=-
| | Posted on Monday, November 19, 2001 - 10:30 pm: |
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Ham/CBer,
What tube or tubes or you running 25k plate volts on? |
Hamcber
| | Posted on Tuesday, November 20, 2001 - 1:38 pm: |
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The 25 KV is on the plate of one of the 4CX35000A's. That tube is the switch-mod tube which provides the pulsed (at 70 kc.) plate drive to the other 4CX35000A which acts as the RF final (The rig is Pulse Width Modulated). With dead carrier of 55 KW, the RF final tube sees about 10.5 KV at around 7.5 amps. The PDM drive comes from rectified audio from the radio used as the driver (Icom in this case). The RF drive comes right from the antenna jack of said radio.
2- Oh, and there's 4.5 KV at around 1.2 amps on the 4CX3500 RF driver tube. |
Sparkomatic
| | Posted on Saturday, November 22, 2003 - 5:03 pm: |
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Light the Florescent bulb???? If anyone tells you they can light a F bulb without bringing the bulb to within a couple of inches of the antenna to start it, is telling a fish story.
That ranks up there with a truck driver running a XFORCE 8 pill bragging he can change traffic lights when he keys.
Getting right up against an antenna radiating 500 watts can't be good for the ole brain tissue. |
Ca346
| | Posted on Saturday, November 22, 2003 - 6:49 pm: |
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Spark:
Maybe that's why the stories get so good.... The tissue is gone.... |
Saddletramp025
| | Posted on Saturday, November 22, 2003 - 9:16 pm: |
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OK, I had to go try!
Running 400watts unmodulated and a 102"steel whip the bulb (4' 25watt) stayed lit to about 5 feet away.
P.S. I've also taken out my share of drive thru bulbs with that whip, and running 500 watts on the base turns my wifes touch lamp off and on...she gets &^#@%* every sunday morning during the net, she says it's hard to read with a strobe light....She gets really nasty..LOL |
Ca346
| | Posted on Saturday, November 22, 2003 - 11:19 pm: |
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Who did you get to hold the 4ft long flourescent lightbulb? |
Pig040
| | Posted on Monday, November 24, 2003 - 10:41 am: |
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With my x-force 2 driving 8 I can turn on the vacuum cleaners at the car wash! |
Sparkomatic
| | Posted on Monday, November 24, 2003 - 2:10 pm: |
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Pig040 does your XFORCE only run the vaccuums while keyed or does it start the timer too. That savings could pay for amp in 32 years assuming you clean your ride every week. |
Buck
| | Posted on Monday, November 24, 2003 - 5:59 pm: |
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LOL...Thats one way to think of it Spark...
Buck |
Pig040
| | Posted on Tuesday, November 25, 2003 - 10:59 am: |
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Spark,
It does start the timer, on both sides of the unit, it scares the heck out of the people on the other side, ha ha |
