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It is currently Tue Nov 05, 2024 8:25 pm
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[ 6 posts ] |
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G4YVM
Advanced Member
Joined: Fri Sep 14, 2012 5:32 pm Posts: 5724 Location: Salisbury, Wiltshire
Feedback: 23 (100%)
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B and Q black pipe Q
You already know the question.
But... I need 2m of pipe and the only pipe that fits is the black stuff from B and Q. Before i buy it does anyone know if it is RF safe or is the black carbon and hence no good for me.? I cant put it in the microave because I havent bought it and dont want to if I can detrmine it's suitability!
Anyone know?
D
_________________ David. G4YVM
www.Bantenna.co.uk
Will a dilithium xtal set send the signals faster or.just warp my key?
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Tue Oct 29, 2024 11:36 am |
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G4LNA
Advanced Member
Joined: Sat Mar 31, 2012 8:11 pm Posts: 4192 Location: Hertfordshire, IO91st
Feedback: 8 (100%)
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Re: B and Q black pipe Q
I have tested it in the microwave and it is RF stable, also as an added bonus it is UV stable as well.
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Tue Oct 29, 2024 11:40 am |
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G4YVM
Advanced Member
Joined: Fri Sep 14, 2012 5:32 pm Posts: 5724 Location: Salisbury, Wiltshire
Feedback: 23 (100%)
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Re: B and Q black pipe Q
Brilliant. Thank you.
Its to house a VHF antenna at an airfield so I needed to know. Thanks.
D
_________________ David. G4YVM
www.Bantenna.co.uk
Will a dilithium xtal set send the signals faster or.just warp my key?
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Tue Oct 29, 2024 11:47 am |
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G4LNA
Advanced Member
Joined: Sat Mar 31, 2012 8:11 pm Posts: 4192 Location: Hertfordshire, IO91st
Feedback: 8 (100%)
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Re: B and Q black pipe Q
G4YVM wrote: Brilliant. Thank you.
Its to house a VHF antenna at an airfield so I needed to know. Thanks.
D That's strange, I've built myself an aircraft antenna made out of conduit and a Tee box and it works well, brilliant minds and all that
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Tue Oct 29, 2024 1:20 pm |
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G4YVM
Advanced Member
Joined: Fri Sep 14, 2012 5:32 pm Posts: 5724 Location: Salisbury, Wiltshire
Feedback: 23 (100%)
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Re: B and Q black pipe Q
Okay answer time boys and girls…
I was convinced that the black stuff is ok so went and bought what I needed. I cut off a few inches and microwaved the section, as well as similar white pvc tube that I have been using for years. Both sample got warm but not hot. The black stuff got softer, though not hotter, so thats probably just the material itself with a lower melting point.
I then rigged my KX2 with it’s whip aerial and found a signal, then slid the tubes (white and black) onto the aerial to see whether the signal was reduced: it wasn’t.
I then tuned the aerial to see whether either changed the swr: it didn’t.
I'm happy!
David G4YVM
_________________ David. G4YVM
www.Bantenna.co.uk
Will a dilithium xtal set send the signals faster or.just warp my key?
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Tue Oct 29, 2024 5:54 pm |
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G4YVM
Advanced Member
Joined: Fri Sep 14, 2012 5:32 pm Posts: 5724 Location: Salisbury, Wiltshire
Feedback: 23 (100%)
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Re: B and Q black pipe Q
G4LNA wrote: G4YVM wrote: Brilliant. Thank you.
Its to house a VHF antenna at an airfield so I needed to know. Thanks.
D That's strange, I've built myself an aircraft antenna made out of conduit and a Tee box and it works well, brilliant minds and all that Ah, now when I needed an antenna for my Auster I seemed left with the option of drilling the perspex and fitting a plane of aluminium, neither of which I really wanted to do. In the end it hit me...I used a dipole centre and made a VHF dipole from wire which i taped to the glazing. Works absolutely fine. D
_________________ David. G4YVM
www.Bantenna.co.uk
Will a dilithium xtal set send the signals faster or.just warp my key?
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Tue Oct 29, 2024 5:56 pm |
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