I have the MP version and love it. I made many DX contacts with it. I have had it in a couple different configurations. When I was able to string it out straight I had no problems with it getting out on 10-80m running 100w on my FT991a. The squirrels recently sent it to the ground for me so I am now looking into another location to put it back on the air as my main antenna.
73 de Sean - N5LNK > On Aug 15, 2023, at 10:40 AM, mike.williams shopjubilee.com via BVARC > <bvarc@bvarc.org> wrote: > > > Time to pick your brains… > > > > I am interested in EFHW antennas for primary use on 20/40/80m – but want to > be able to run my Worthmore 600w amplifier. > > I found a MFJ model - MFJ-1982HP is rated for 800pep > > https://mfjenterprises.com/products/mfj-1982hp > > > > This antenna is available in three power ratings: > > MFJ-1982LP – 30w > > MFJ-1982MP – 300w > > MFJ-1982HP – 800w > > > > Anyone have experience with this antenna? > > > > > > > > A couple of questions – > > If you have experience with high power (>= 600w) transformers for EFHW > antennas, what design did you use > Core type and number of cores > type 53 has a higher curie temp as opposed to type 43.... > Wire AWG? > I see a number of YouTube videos recommending 56:1 as 49:1 > Comments? > > > What is your recommended wire for the radiation element? > Material – > i. Copper over steel? > > ii. Hard-drawn copper? > > iii. Other > > b.AWG? > > i. Number of Strands > & strand count? > > c. Jacket material > > d. Other? > > > > Your guidance is appreciated! > > ’73, > > Mike KK5SC > > > ________________________________________________ > Brazos Valley Amateur Radio Club > > BVARC mailing list > BVARC@bvarc.org > http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org > Publicly available archives are available here: > https://www.mail-archive.com/bvarc@bvarc.org/
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