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    F9FT

    Publikované v: Technique

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      Participant
      Anonymous dňa April 30, 2009 at 12:37 #11147

      Hello. It would really help me if you could provide me with some manual for F9FT, i.e. dimensions, etc... The antenna should have about 5 elements, since there are more types. I would also need some guide for a GP antenna for 70 cm, or perhaps some Yagi... Thank you in advance... 73 😉

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      Participant
      om2amb dňa April 30, 2009 at 14:19 #12508

      Do you know Uncle Google?

      You forgot to write the band at F9FT (for example, 2m is not made) see http://www.F9FT.com They are made on 6m (when I asked Uncle Google, it only threw here on 6m)

      and small GP for 70cm: 5/8 or 1/4?
      5/8 is here for example: http://www.QSL.net/yo5ofh/projects/70cm_antenna.jpg

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      Participant
      om0aao (OM0A) dňa April 30, 2009 at 14:20 #12509

      Hi, check the Technique section (menu on the left), maybe one of the antennas will inspire you.

      Among short antennas for VHF, the 2el.HB9CV, MOXON, DK7ZB, G0KSC OWA, and others may be interesting:

      http://www.moxonantennaproject.com/
      http://www.qsl.net/DK7ZB/start1.htm
      http://www.g0ksc.co.uk/
      plus Google...

      With short antennas, I would definitely use the option of direct feeding with coax cable without a matching element, i.e. G0KSC or DK7ZK (ultralight). F9FT is unnecessarily complicated, it would be worth considering with a larger number of elements.

      http://www.g1ogy.com/projects/tonna/tonna-mans.html

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      Participant
      ok1xr dňa May 1, 2009 at 21:25 #12510

      F9FT is probably an outdated antenna today. Look here:
      http://www.mydarc.de/DK7ZB/start1.htm
      There are various element antennas here, tested and 100% reproducible if the prescribed dimensions are followed. If you want a shorter antenna for 2m, then the 6el/2m long 50ohm DK7ZB works very well. I finished it last week. If you are interested, I will send you a photo of the antenna and the procedure for making reliable element mounts. Jindra.
      ok1xr at cq.sk

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      Participant
      Anonymous dňa May 7, 2009 at 1:50 PM #12511

      thank you for the advice… also for the links. as far as I know, I searched on Google and found nothing. I already have HB9CV finished, it is good, but I want something better for a 12-meter mast.

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