I need help building a hf wire antenna

[WB9YBM]

A nice NEMA box from Home Depot

how RF-tight are NEMA boxes? Would deep-drawn aluminum (with a lip around the cover) provide better shielding? (If it even matters...)

 

[prcguy]

They are not RF tight, they are plastic. NEMA is an environmental spec. You don't need to shield the RF transformer inside, although it is a toroid and somewhat self shielding. This is a common box used by many commercial RF transformer mfrs. They used to be about $7 but have gone up in price.

https://www.lowes.com/pd/CANTEX-Junction-Box-Gang-Gray-Plastic-Weatherproof-New-Work-Old-Work-Standard-Square-Interior-Exterior-Electrical-Box/3276255

how RF-tight are NEMA boxes? Would deep-drawn aluminum (with a lip around the cover) provide better shielding? (If it even matters...)

 

[N4GIX]

An EFHW with a 49:1 or 64:1 transformer is easy to make and I can post links to instructions. A single FT-240-43 core that will handle up to about 400W SSB is $10. A nice NEMA box from Home Depot is about $7. The connector, capacitor and wire don't cost much and its a great project that works really well.

I priced out every part at my local Menards as well as Home Depot and they totaled around $50.