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I just got my ham ticket. I passed the tech and the general the same night.
Problem is I have absolutely no amateur gear. I probably did this ass backwards.
I'm not sure whether I should get a 2 meter rig and get an hf rig later, or should
I get an hf rig now?
Would 500 dollars get me a decent...
I've had it to two different technicians and an rf engineer. The radio is on frequency. If the meter displays 27.185, I am transmitting and receiving at that frequency.
The engineer saw this problem first hand. He said It might be remedied by getting a better crystal for it ,but there was no...
I've had this radio into the shop twice now for alignment issues. For some reason when i'm on am or fm if I tune the radio 2 khz lower people come in louder with more signal. I also come in louder and have more signal to them. ssb doesn't have this problem. The tech that work on it said it's...
I'd like to thank everyone who put there effort into seeing what makes this antenna work as well as it does. I'm sure people will still insist on calling this antenna nothing more than a "dummy load". I've had excellent results with the Imax 2000. As far as white noise or static goes, the Imax...
I was toying around with the downloadable version of enzec. I brought up the first elevated radial system in the menu box provided by the program.
I then converted the antenna to 27 mhz. I set the antenna height at 8.5 ft. I set the radial length to 6ft. It showed a typical 1/4 wave pattern...
Hi marconi, It looks like you've done a great deal of work modeling the imax. I very much appreciate your plots posted for this antenna. Now I'm curious how the ground plane affects the angle of radiation. Do you think there will be a difference with the capacitor in place?
Thank you 357! and thank you DB! This was what i was trying to figure out in another thread. The 4pf value I suggested for the model was way too low. I threw that in because i saw it used in the matching system to couple the signal into the antenna.For all I know the 4pf. cap value may be...
357 I hope I'm wrong, but I'm detecting a note of sarcasm in your reply. It's hardly worth me driving 600 miles to arrive unannounced wanting a tour of their facility. I highly doubt they would give me the time of day..........:rolleyes::rolleyes:
Thank you DB. I appreciate your time. I'm not sure what to make of it though. It doesn't look good. I can't imagine how bad the radiation pattern is. I must be miles off on the cap value.:oops:
I'm thinking they put the coupling capacitor in there to raise the current higher on the antenna. That should in theory put more of the radiated signal on the horizon. I've scoured the internet looking for this antenna properly modeled with the coupling capacitor. All I can find is it modeled as...
If you have the same result that I did, we may have to take another look at this antenna.
I've noticed you have done your fair share of antenna modeling. I'm curious as to how this capacitor affects the radiation pattern. I always assumed the center section was just a straight piece of copper...
Thanks DB,Very much appreciated. The cap would be 143 inches away from the top of the antenna. feed point is 24 ft. from the ground. top of antenna is at 47 ft.
I don't have the means to check the value, but there is a chance its a 4 pf. It's 23 ft. to the base of the antenna. I also have the ground plane kit on it with the 6 ft. radials at 30 degrees to the horizon. The soil conductivity here is poor. DB that would be great if you would generate a plot...
I recently checked the continuity of the center section of this antenna and it read infinite resistance.
That leads me to believe it's a capacitor and not something to keep the wire inside from banging around.
I have the "Max" 2000. I pretty sure its no different than the "Imax" 2000. If that...
Hi Tim, I will recommend painting your Imax2000 with a non-metallic paint. This will help it from splintering. I painted an a99 and it lasted 17 years. The threads in the top center section finally failed from experimenting with different whips. I have also painted my Imax2000 with a uv...
I found this picture on the this site, pretty much explains it. I've got the newer version. My results certainly didn't live up to the hype I've seen on reviews. I thought maybe I had assembled it wrong because it didn't "blow away" the imax. The maco I have performs like a 1/2 wave antenna.
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