| Author |
Message |
    
Motorhead
| | Posted on Sunday, October 13, 2002 - 11:16 am: | 
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The other night, I had occasion to catch a conversation on between two apparently knowledgeable operators on SSB. Very polite and good sounding stations with pleasant voices to boot.
I was completely astounded when one of the operators mentioned to the other that he PURPOSELY mis-adjusted his antenna elements so that the transmitter saw an SWR of 1.5 : 1 !!!
He swore and declared that this sort of treatment made his tubes "load up harder" so that the box would "go on and do what it was going to do" !!! I couldn't find words to describe my embarrassment for this poor guy.
I summonned the heart to say that if the standing wave was a better match, he wouldn't have to load up his box in such a way, cos after all, the goal is more wattage into the air, NOT into the co-ax. It wasn't recieved well.
I guess the question i am trying to ask is :
"WHO TELLS FOLKS THIS STUFF???"
Here was an otherwise nice guy, practicing good etiquette and form sounding like a complete witch doctor/snake oil salesman/superstitious old nut. But maybe I am the one who's crazy...maybe it IS all about how red your tubes glow and Effective Radiated Power and efficiency are just two concepts for commercial radio station engineers to worry over...(sarcasm here)
Maybe i should stick to tattooing.... |
Kirk
| | Posted on Monday, October 14, 2002 - 9:54 am: |
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ya know....many of us have heard these old "wives tales"...and sometimes....just sometimes....I want to stir the pot more....but I don't. In this case Motorhead, I would have been so tempted to say something like "1.8:1 is really the best." You should try harder! Maybe crimp your coax just a little!"  Some of the things I've heard are absolutely insane. Maybe natural/normal physics as we all know it changes when it hits 11 meters, then goes back to normal everywhere else? |
bruce
| | Posted on Monday, October 14, 2002 - 2:09 pm: |
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Kirk
1) if your antenna is working right at center frequency a 1.5/1 match is good beter is beter.
2) You can cut coax till the cows come home but if the antenna is not right all your doing is tricking your meter.
3) 2/1 is a 10 PERCENT loss is cutting $80 worth of coax tring to get to 1.1/1 worth it?
your right wives tales |
Taz
| | Posted on Monday, October 14, 2002 - 4:12 pm: |
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and the old wives tale of all time
JOGUNN AUDIO GAIN! AHHAHAH |
HoosierCardinal
| | Posted on Tuesday, October 15, 2002 - 5:38 pm: |
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Pun the coax and see what happens if you talk! LOL!!!
Jo GUNN Audio gain= antenna modulation!!!!!
LOL!!!!! |
bruce
| | Posted on Tuesday, October 15, 2002 - 6:44 pm: |
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Hoosier
THIS IS JUST BETWEEN YOU AND ME
if you run rg-8 into micro coax into rg-174 you will compress the electrons and force them out of the antenna with great force. Works just like a LINEAR .... i got it from the designeer for the JOGUNN audio gain system! |
jyd
| | Posted on Tuesday, October 15, 2002 - 7:22 pm: |
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thats right bruce,he could set his swr to 2.5 and it would show more wattage and heat up the tubes more ruin them, and get a bigger percentage coming back through his antenna. |
bruce
| | Posted on Tuesday, October 15, 2002 - 8:14 pm: |
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JYD ..... NEET i never thought of that ! hey do you think if i ran 450 open wire into 50 ohm i could reduse line loss 50 ohm cable has less resisrance right? |
Alsworld
| | Posted on Tuesday, October 15, 2002 - 8:42 pm: |
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Hey Motorhead,
if you hear that guy again, give'em my number. I have a homemade dipole with about a 1.9 SWR. It'll load that radio up for sure, and I'll sell it cheap to him, only $185
Heck I'll even throw in some old washed up coax for free provided he pays shipping (and my $15 handling fee) hehehe
Alsworld |
HoosierCardinal
| | Posted on Wednesday, October 16, 2002 - 3:11 pm: |
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They also told me the larger element diameter causes the radios modulation to be louder because the modulation has more surface face to come off of! |
bruce
| | Posted on Thursday, October 17, 2002 - 4:58 am: |
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Hoosier
You say that one more time im going to laugh myself silly! |
HoosierCardinal
| | Posted on Thursday, October 17, 2002 - 7:50 am: |
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Seriously Bruce that is what was told to me back in 1995 by the rep at JO GUN!!!!!!!!!!!!!!!
Then i didnt know what to think now i find it preposterous!!!!! |
jyd
| | Posted on Thursday, October 17, 2002 - 9:40 am: |
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myths of cb radio,maybe we can wire to mikes into the same cord,and a radio will be twice as loud.its just a joke |
bruce
| | Posted on Thursday, October 17, 2002 - 8:38 pm: |
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JYD just like 2 antennas in parallel gets out twice as good o by the way hoosier..... there comming to take me away! HA HA HA HA HEE HEE |
Radio Facts
| | Posted on Thursday, October 17, 2002 - 10:30 pm: |
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Fact #1: If you put your radio in the freezer over night and wave a dead chicken over the power supply you will double your wattage.
Fact #2: If you reverse your coax every 2 weeks like your tires it will last longer.
Fact #3: If you wax your antenna it will help the sky wave conditions.
Fact #4: If you keep your feet in a bucket of water while transmitting it will improve your audio.
Fact #5: If you turn every thing there is to turn inside your radio you will be buying a new radio. LOL |
Againstregulationguy
| | Posted on Friday, October 18, 2002 - 8:40 am: |
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Try this one!!! take all the left over coax you have and wrap it in a nice tight loop then hook it up yo your swr meter you will have a 1.1 match, if you dont you loosen the loops till you do |
HoosierCardinal
| | Posted on Friday, October 18, 2002 - 8:04 pm: |
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I knew a guy that once claimed painting an antenna with aluminum flake paint would make his antenna louder! Well he ended up buying a new antenna after that! Hios SWR went higher than a kite!! Some CBers are so dumb about stuff its unbelievable. |
bruce
| | Posted on Saturday, October 19, 2002 - 7:57 am: |
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But the manufatuers DEPEND on CBers being dumb if the average CB user had a better knolege of radio do you think JOGUNN would be around? Some get anoyed at me posting things that they dont wantto hear or have heard lies about for so many years that the lie is now the truth. Everyone knows if they have a question e-mail me i get back to 99% who do even with very limited time and lots of e-mail wa4gch@yahoo.com .
EXAMPLE
A99 = 9.9 db gain real world a 1/2 wave is about 2 DBI
I tell people all the time if you want to know the truth look it up in HAM books if its not there its not true..... you know Hoosier like AUDIO GAIN! |
