Antennas
March 2nd, 2008I been a ham for 39 years I got my tickett in 1969 an Antennas were my bag. but starting out before I got a ham tickett I had an old 5 chrystal CB rig. then a 23 channel an a 40 channel. how long is an antenna well its the Frequency in MH devided by 468.. so for CB 40 channel take 27.2 into 468 and it would be about 17 feet an 2 inches.
Should the ant, get hot, not if its matched it wont, during Vietnam we used 4-1000A amps running as high as 5,000 watts, if we was on a 14 gage wire for a dipole an the SWR was below 1.8 to 1 no heat on the ant.
If you have heat you have a very big loss, heat is not free , its the power loss , what dont go out in power is heat an no one can hear heat hi hi. (hi hi is ham for a laugh in CW)
It is not so much power that get your signal out. its how you use it. I have worked around that world on 100 watts.
and during phone patches to viet nam we ran around 800 watts Peak to peak… but we used an full sized beam , at 125 ft… Sargent Stevens in Okinawa, ran the Marine Mars Gov staton, he never turned on his linear , didnt need to, he has a 5 wave romnic at 70 ft. pointed at the states, an when Steve talked with a collins S line using 6146s at 180 watts P-P every one heard him.. sure he had the biges linear I ever heard of, but he never needed it… what we did was move frequency as the bands change.. you cant do that with cB being your stuck with 11 meters. W7FTU worked Japan for Oregon on 100 millwatts jsut to see if he could. whe used code (CW) no carrier, side band is almost as good, AM is bad the carrier is big an you could say heavy contains a lot of weight hard to get far. But dont worry so much about power, power wont do near as much as a good antenna.
I can take a CB with a full size 5 element beam, up at least 1/2 wave ( 17ft) above the ground an use 5 watts single side band, an out talk a guy with 500 watts AM an a vertical any day of the week, I wont sound mushy an to loud, but ill be clear an go father punch through more noise. AM is a class C amp. an its not linear so you cant accually run an amp very well as a linear is Class AB1 also a class C effiency is at best 55% where as AB1 is around 70% why, well running single side band your not key down an have no carrier,, so the tube handles it much better,,, class C tube is running at key down an a lot is lost right in the tube due to heat…there is a lot more to it, but this is easiest way to explain it. oh I didnt mention Im also an Electronic engineer ( well at least I use to be) ![]()
CW and the Ham
March 2nd, 2008To tell you the truth, its a shame they took CW out of Haming, I’m an Old Guy, I remember how hard it was to larn CW an get it up to 13 for the general test. But even now days it has uses, Im use to be a commerical fisherman, an did you know you can tell which light house you at because the dont just flash, they flash a CW letter, Also I ahve had friends theat lost theeir electronics due to taking on water, or wireing fires. they got help with a flash light, using code.
Hams are an elite Group and what keep it that way, it should never be easy to get a tickett.. I spent every day studying for a year to get my tickett, an I hold it very high, Im proud to be a ham. a old ham would not lie to you, he wouldnt cheat you. he or she was decated,,, I hope we never loose that.
Now I’m not putting anyone down that dont know CW, But I hope we all still hold our ticketts with pride that we are a bit different than other folks ![]()
Pass Ports do you need one
March 2nd, 2008Well do you need a Pass Port, Well maybe you dont a friend of mine wanted to go to Mexico, on the week end he didnt have time to renew his passport. So we called the boarder Patrol and they said if you ahve your state ID and you birth certificate as long as its a driving trip, an not an air or boat trip no passport is required. ( this may change, call the boarder patrol) flying you need one. they also told him to be sure an make copies of you ID an leave it with a trusted friend in case you loose it. so they can call you friend hand have you ID faxed to them. Before going to any other country. be sure an check out the requirments, as they can change..
Duel Core vs Core 2
March 2nd, 2008I decided to get the duel core 3.4 gig intel, as I figured the frequency would probably be faster than 1.8 gig core 2, alothought the D945 has a bad reputaion for heating,, I found this is not a proble, I use the MSI board, which monitors the processor during usage. My processor runs at about 39c during web usage, heavy gaming not over 52c
Its very fast I cant tell any difference between it an some of the guys that have the 2.4 gig core 2 except mine cost a lot less ![]()
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