Publikované v: Technique
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 😉
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
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.
F9FT is probably an outdated antenna today.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
