What coax for HF ?

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gmham
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What coax for HF ?

Post by gmham » 23 Oct 2017, 19:54

Guys what coax you using on HF ? Looking for around 8 mtrs off RG8 mini. Okay as far losses go on this sort off length and okay for full legal limit power handling ? rg213 is a bit heavy duty on this particular antenna arrangement but would use if necessary.
.... Icom IC7300 HF /6 mtr / Alinco DX70TH HF/6mtr / Kenwood TR751e 2mtr ssb... / Inrico TM7.
Ameritron ALS-600X SS HF Linear.... Cushcraft R6000 HF vertical / Hamtenna 80-10 mtr ocf dipole....... / Vine 5ele 6mtrs / Vine 10ele for 2mtrs.
Behringer xm8500 mic.

108-TM-154 - John

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ch25
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Re: What coax for HF ?

Post by ch25 » 23 Oct 2017, 20:06

And full legal is 1500 or.... ?
@28MHZ it would be 0,257dB loss, so no matter.
Chris
You can't have too many antennas...

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gmham
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Re: What coax for HF ?

Post by gmham » 23 Oct 2017, 20:29

400 watts... 1500? High power permit, you still get them nowadays?
.... Icom IC7300 HF /6 mtr / Alinco DX70TH HF/6mtr / Kenwood TR751e 2mtr ssb... / Inrico TM7.
Ameritron ALS-600X SS HF Linear.... Cushcraft R6000 HF vertical / Hamtenna 80-10 mtr ocf dipole....... / Vine 5ele 6mtrs / Vine 10ele for 2mtrs.
Behringer xm8500 mic.

108-TM-154 - John

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ch25
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Re: What coax for HF ?

Post by ch25 » 23 Oct 2017, 21:58

Depends on country. I can use 1500W legally.
400W is power rg8 can handle. No worry.
Chris
You can't have too many antennas...

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gmham
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Re: What coax for HF ?

Post by gmham » 23 Oct 2017, 22:12

Cheers Chris was not too sure but guess especially with it being ssb modes 400w would not be a problem. Not too bad a losses either with quality rg8 mini on this sort off length ?
.... Icom IC7300 HF /6 mtr / Alinco DX70TH HF/6mtr / Kenwood TR751e 2mtr ssb... / Inrico TM7.
Ameritron ALS-600X SS HF Linear.... Cushcraft R6000 HF vertical / Hamtenna 80-10 mtr ocf dipole....... / Vine 5ele 6mtrs / Vine 10ele for 2mtrs.
Behringer xm8500 mic.

108-TM-154 - John

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ch25
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Re: What coax for HF ?

Post by ch25 » 24 Oct 2017, 10:52

6 dB is 1s unit, so coax loss mentioned is minimal.
Chris
You can't have too many antennas...

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gmham
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Re: What coax for HF ?

Post by gmham » 24 Oct 2017, 19:12

Perfect, quality rg8 mini just ordered. Thanks.
.... Icom IC7300 HF /6 mtr / Alinco DX70TH HF/6mtr / Kenwood TR751e 2mtr ssb... / Inrico TM7.
Ameritron ALS-600X SS HF Linear.... Cushcraft R6000 HF vertical / Hamtenna 80-10 mtr ocf dipole....... / Vine 5ele 6mtrs / Vine 10ele for 2mtrs.
Behringer xm8500 mic.

108-TM-154 - John

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ch25
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Re: What coax for HF ?

Post by ch25 » 24 Oct 2017, 19:21

Just watch that video https://www.youtube.com/watch?v=6e_ppym4yhg
Explains a lot.
Chris
You can't have too many antennas...

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gmham
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Re: What coax for HF ?

Post by gmham » 24 Oct 2017, 20:02

Thanks Chris will check that out.
.... Icom IC7300 HF /6 mtr / Alinco DX70TH HF/6mtr / Kenwood TR751e 2mtr ssb... / Inrico TM7.
Ameritron ALS-600X SS HF Linear.... Cushcraft R6000 HF vertical / Hamtenna 80-10 mtr ocf dipole....... / Vine 5ele 6mtrs / Vine 10ele for 2mtrs.
Behringer xm8500 mic.

108-TM-154 - John

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