| Author |
Message |
    
stroker
| | Posted on Saturday, October 27, 2001 - 4:39 pm: | 
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what is the benefit of adding two ground plane kits |
Vernonott
| | Posted on Saturday, October 27, 2001 - 8:52 pm: |
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Stroker: Personally I don't run any ground plane kit on my 99.Years ago I tryed a kit but didn't see any difference in the receive.73's |
Marconi
| | Posted on Saturday, October 27, 2001 - 8:59 pm: |
|
I have an extra GPK or two around here that I will sell, you pay shipping.
My A99 works just fine without anything added. I have tested them and the only thing I noticed was the the SWR curve smoothed out a little and the bandwidth increased.
Adding a GPK is like wearing two pairs of pants!
Marconi |
don
| | Posted on Friday, December 14, 2001 - 2:38 pm: |
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What are you asking for the A-99 ground plane kits?
Thanks |
Marconi
| | Posted on Friday, December 14, 2001 - 10:19 pm: |
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Sorry Don, they are long gone.
Marconi |
Bill
| | Posted on Monday, January 21, 2002 - 10:05 pm: |
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Vernonott & Marconi:
I just ordered an Imax 2000 from copper and came across this forum.
I have run A-99's since the 80's, and am very pleased with with the performance. Like yourself I ran them with and without the GPK. I will agree that the SWR curve smoothed out a bit and the bandwidth did increase a little.
I have just returned from Alaska and am trying to get my base set up again. I thought that I might try a I-2K this time.
I could use a little advise from the more educated radio operators in this matter!
1) Is it better to have this antenna at 36'0" or would 15 or 20ft work as well?
2) Dose this antenna radiate or transmitt from the tip of the antenna or dose it radiate from the entire legnth?
3) What is a good legnth to cut coax? I have herd everything from 50'0", 100'0", 36'0" to multiples of a legnth that will divide into 36'0" such as 3, 6, 9, 12, 18 and so on as I understand that 36'0" is a full wave legnth.
4) Will a piece of #8 solid copper wire ran from the mounting plate or mast to a 8'0" copper rod in the ground be a satifactory ground?
5) I have an old cobra 142 GTL base but am bending toward using my Galaxy DX99V with a Tripp Lite PR-40 power supply until I can find a good Base. I am not planning on usinging any power at first. I have a 600w amp. but I question the ability of the PR-40 to handle both of them even on low power. I am not a big fan of amps., I like to get out with a good antenna vs. power.
6) Should the power supply and radio both be grounded seperately?
I plan on mounting a push-up pole on the side of the house, and using RG-8 and not minnie 8.
Sorry for so many questions, I really want to put up a first rate base this time around with some good advise.
I will sure welcome any additional information outside the previous questions.
Thanks for your time.
Bill (Mavrick) |
Vernonott
| | Posted on Tuesday, January 22, 2002 - 12:16 pm: |
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Bill : Many people disagree but I always run 100' of coax with the excess coiled at my base station as sort of a choke to cut down on bleeding over on the neighbors.The base of my A99 is exactly 30 ft.which makes the tip at 48ft.Most of the time I run mobile radios for bases just for the ability to move it back and forth between the base and one of my mobiles.I have quick disconnects on all of my power wiring.If you want to run that mobile amp on your system pickup another power supply preferably a 50 amp and run both power supplies. |
Bill
| | Posted on Tuesday, January 22, 2002 - 6:19 pm: |
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Vernonott:
Thanks for the quick reply.
I like the idea of using the remainder of the coax as a choke.
My orginal plan was to use RG-8, but I forgot that I have a couple of pieces of "Tramax" RG-8/X 95% shield with a stranded center. I guess that a single 100'0" run of RG-8 would be better. What would you do if it were up to you?
I am still curious as to where this antenna transmits from top, bottom, or the entire legnth?
Thanks again for the advise. I learned something.
I wanted to get a little more information on the X-Force amps., but I guess I should ask my questions under "Topics" "Amps."
Thanks Again
Bill |
bruce
| | Posted on Wednesday, January 23, 2002 - 12:08 pm: |
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the same can be done with my famous beads! |
Bullseye
| | Posted on Friday, February 01, 2002 - 6:09 pm: |
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Can anyone tell me how to adjust SWR on these. Found one in the shed but not sure how to do this. |
Bruce
Senior Member
Username: Bruce
Post Number: 1914
Registered: 9-2003
| | Posted on Wednesday, December 22, 2004 - 5:38 pm: |
|
Well Copper did it again!
The people at copper never stoping amazeng me. I ordered the a-99 on monday and its all ready HERE AND INSTALLED! 2 DAYS order to using it! .... watch out net for the big gun out of tampa .... ok a cap pistol ( LOL ) |
Tech808
Moderator
Username: Tech808
Post Number: 4352
Registered: 8-2002
| | Posted on Wednesday, December 22, 2004 - 6:04 pm: |
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SUPER
FASSSSSSSSSSSSSSSSSSSSTTTTTTTTTTTTTTTT
SERVICE. 
Lon
Tech808
CEF808
N9OSN |
Bruce
Senior Member
Username: Bruce
Post Number: 1918
Registered: 9-2003
| | Posted on Thursday, December 23, 2004 - 7:29 am: |
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The A-99 is 2 S units better than my trap multiband dipole to another ham at 5 miles on 28.360. Also VSWR is under 3 to 1 from 24.930 to 29.695 the trap antenna never goes under 2 to 1 but this antenna at ch-13 was 1.2 to 1 ! You pay DEARLY for the conveinance of all thoes bands on one feed. |
Chad
Member
Username: Chad
Post Number: 60
Registered: 11-2004
| | Posted on Thursday, December 23, 2004 - 9:29 am: |
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37 bucks is paying dearly? I was stoke about the price copper gave me on the imax 2K. And it was here lickety split! |
Bob_p
Advanced Member
Username: Bob_p
Post Number: 595
Registered: 7-2004
| | Posted on Thursday, December 23, 2004 - 2:48 pm: |
|
Chad I think Bruce was talking about the Trapped Di-Pole covering 10-40 meters, when he said said "You pay DEARLY for the conveinance of all thoes bands on one feed".
The trapped dipole and A-99 combination should work great, and give overall better perfromance. I'm planning on doing the same thing soon. But I am planning on using my I-Max on 10-17 meters and a Trapped Multi-Band dipole on 20-40 meters. That's why I had asked you about yours earlier Bruce. The manufactured multi-band verticals are way too expensive for me to play with right now. I wouldn't mind having a multi-Band vertical because of my space limitations, but the price tag is outrageous for anything that might work as well as the above combo.
I've read reviews on the A-99 that say it covers 10 through 15 meters really well, and will tune on 6 and 20 meters with fair to good results too. I was told the trapped dipole will work better on 20 and 40 meters, where it acts as a tuned 1/2 wave antenna. So I believe you'll end up with a 1/2 wave on 10,20 and 40 meters. I'm not sure how the A-99 will act on 12, and 15 meters. But I do know it should be about the same or better than the dipole.
I called the maker of S**-R* multi-band trapped dipoles and asked about a 10-40 meter antenna and was told it was a 1/4 wave on everything except 20 and 40 meters where it is a 1/2 wave on 40, and better than a 1/2 wave on 20. So I think I'll have better luck using both antennas too. That's if I can fit the dipole on my lot.
Just my thoughts on the subject.
|
Bruce
Senior Member
Username: Bruce
Post Number: 1924
Registered: 9-2003
| | Posted on Thursday, December 23, 2004 - 4:54 pm: |
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OOOPS!
Chad i ment my spyro d-42 40 -10 dipole ( $130 with balum ) covers 7-29 mhz but dosnt do it very well ...at least outside of 40 20 and 15. Now for 37 bucks i got a much better match on 12 and 10 and with my MFJ-945 tuner it also works on 15 and 17 .....at least as well. |
Bruce
Senior Member
Username: Bruce
Post Number: 1926
Registered: 9-2003
| | Posted on Thursday, December 23, 2004 - 5:48 pm: |
|
Bob
It is a 1/4 wave on 40 20 and 15 and works VERY well. The problem becomes tring to use it OUTSIDE thoes bands even with a tuner it is at best only better than no antenna at all. Your 100% right this combo of a 40 20 and 15 dypole and something to go 17 12 and 10 works well! |
Gonzo
Intermediate Member
Username: Gonzo
Post Number: 146
Registered: 9-2004
| | Posted on Thursday, December 23, 2004 - 7:14 pm: |
|
"1) Is it better to have this antenna at 36'0" or would 15 or 20ft work as well? 36 FEET
2) Dose this antenna radiate or transmitt from the tip of the antenna or dose it radiate from the entire legnth? LOWER HALF OF ANTENNA
3) What is a good legnth to cut coax? I have herd everything from 50'0", 100'0", 36'0" to multiples of a legnth that will divide into 36'0" such as 3, 6, 9, 12, 18 and so on as I understand that 36'0" is a full wave legnth. SHORTEST LENGHT POSSIBLE
4) Will a piece of #8 solid copper wire ran from the mounting plate or mast to a 8'0" copper rod in the ground be a satifactory ground? YES
5) I have an old cobra 142 GTL base but am bending toward using my Galaxy DX99V with a Tripp Lite PR-40 power supply until I can find a good Base. I am not planning on usinging any power at first. I have a 600w amp. but I question the ability of the PR-40 to handle both of them even on low power. I am not a big fan of amps., I like to get out with a good antenna vs. power. 600 WATTS EQUALS AT LEAST 60 AMPS OF PULL. THAT POWER SUPPLY IS TOO SMALL
6) Should the power supply and radio both be grounded seperately? THEY CAN BE GROUNDED TO THE SAME GROUNDING BAR....WHICH THEN SHOULD LEAD TO A SHORT WIRE RUN TO A GROUND ROD. NOT THE SAME ONE AS THE ANTENNA
|
Bruce
Senior Member
Username: Bruce
Post Number: 1930
Registered: 9-2003
| | Posted on Thursday, December 23, 2004 - 10:57 pm: |
|
Gonzo....
I dont have a clue what your posting but in MY case ........
1)mine is at 10 foot
2)it works far better than the long wire i was using
3) I'm running 75 foot of 58
4)CODE for lightening here is a 10 foot rod
5)600 watt amps are not legal on cb and would give someone good reason to come and cut it down.
6)lightening should be givin a path to ground OUTSIDE your house ..... not a good idea to pass it through the supply first. CODE is single point ground. |
Gonzo
Intermediate Member
Username: Gonzo
Post Number: 147
Registered: 9-2004
| | Posted on Friday, December 24, 2004 - 5:30 pm: |
|
I am answering the earlier question. Seems like it got lost.
5) yes 600 watts is illegal on CB, blah,blah,blah......
6)Yes Outside your house, (pass through the supply ??) I do not know where you got that from. |
Bruce
Senior Member
Username: Bruce
Post Number: 1940
Registered: 9-2003
| | Posted on Saturday, December 25, 2004 - 6:27 am: |
|
Gonzo
Just poking a bit of fun at ya ..... |
