Doing some maintenance and upgrade to my antenna system. Getting ready for DX
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New Coax
- Thread starter Drifter
- Start date
Doing some maintenance and upgrade to my antenna system. Getting ready for DX
That's one hell of a slug too. Its a good thing I have an HOA to help limit my addictions, or I might be there with ya.
Lol, no hoa here and a bunch of open space for towers and antennas.
Nothing holding me back but $$$
Hi Drifter. Since you have your antennas down, how close do you have the Vector 4000 from the yagi boom ?
According with the picture, it looks no more than 1 feet . Do you have any interaction between them, How is the SWR on your Vector ? Do you have any SWR readings for me to see ? How is the bandwidth?
I am asking because I am tuning a Vector 4000 on a 10 feet pipe away from any antennas . I am planning to install it in top of a Mosley Yagi with a clearance of 3-4 feet.
Here are some reading with an antenna analizer with a short RG- 8x jumper ( about 2 feet )
SWR= 1.2 on 27,035. R= 42, X= 8
Same jumper with line isolator
SWR= 1.0 on 27,065. R=54, X = 0
Line isolator shifted frequency up by 3 channels. SWR went down and R and C tell me that it is perfectly ( or at least very close ) to resonance.
Is it a good idea to use the line isolator just to make sure everything will work fine once up in the tower ?
Since I have low SWR at low height ( 10 feet, no grounding ) , what should I expect when I put this Vector 4000 up in the tower, ( about 35 feet high ), SWR will remain the same, will go up , ?
Can I have a picture of the mounting plate system you used to fix your Vector 4000 to the pipe. The u bolts that Sirio uses suck.
According with the picture, it looks no more than 1 feet . Do you have any interaction between them, How is the SWR on your Vector ? Do you have any SWR readings for me to see ? How is the bandwidth?
I am asking because I am tuning a Vector 4000 on a 10 feet pipe away from any antennas . I am planning to install it in top of a Mosley Yagi with a clearance of 3-4 feet.
Here are some reading with an antenna analizer with a short RG- 8x jumper ( about 2 feet )
SWR= 1.2 on 27,035. R= 42, X= 8
Same jumper with line isolator
SWR= 1.0 on 27,065. R=54, X = 0
Line isolator shifted frequency up by 3 channels. SWR went down and R and C tell me that it is perfectly ( or at least very close ) to resonance.
Is it a good idea to use the line isolator just to make sure everything will work fine once up in the tower ?
Since I have low SWR at low height ( 10 feet, no grounding ) , what should I expect when I put this Vector 4000 up in the tower, ( about 35 feet high ), SWR will remain the same, will go up , ?
Can I have a picture of the mounting plate system you used to fix your Vector 4000 to the pipe. The u bolts that Sirio uses suck.
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Hello Drifter: Wow very impressive! Can you show us a picture showing how the beam big boy coax rotates around the antenna and tower. Always wondered how thats done.
Jay in the Great Mojave Desert
Jay in the Great Mojave Desert
The 7/8 Heliax is ran from the Gamma along the boom suspended by insulated hangers past the mast pipe then suspended with coax hoisting grip socks down from the boom down to the ground. No problems turning the beam.
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I have a bigger slug than the one in the pic. Depends on which box I am keying at the time.
I'm not sure if I should be impressed by a 25k watt slug being too small, or feel sorry for your addiction. Either way, that is insane.
Impressive. I was planning on doing the same thing above a Mosley TA-33 Yagi, but leaving more space about 3 feet.
I was asking you because when I saw your pics, I dare to say it has no more than 1 foot apart from each other and I thought they could affect each other’s performance.
By the way, can you tell me what are the frequencies from 2.0 down and 2.0 up ?
Thanks for responding.
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Why interesting ?
it’s been used for years on mobile competition rigs and base equipments running high kilowatts settings.
Why would you buy helix for running 4 watts?
Dont feel sorry for me.. I am having fun either way..
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