-40%
End Fed Dipole 160-10m Portable HF Antenna Matchbox SO-239
$ 18.48
- Description
- Size Guide
Description
You will get 9:1 isolated transformer in waterproof box (use with 50 Ohm coaxial cable)SO-239 connector
We use only original Amidon Cores FT140-61
You need:
ONLY WIRE
This unit will allow you to run an end fed dipole on almost any band with just a single wire and radio+tuner.
My matchbox is made with a larger toroid and solid copper wire allowing more power to run through it. You can run from QRP to 400Watts PEP easily if using a tuner with random length.
How this works is really quite simple. Running a standard dipole with 2 elements has about a 72 ohm feed point at the center but end feeding a dipole will result in impedance levels from 1800 to 5000 ohms! That's way too much for a tuner to handle right?
Well that's what this matchbox takes care of. Simply put it brings the impedance down to levels that tuners can deal with and a tuner isn't even needed if you trim to a good length.
Use at least 16 feet of coax from the box to the tuner! The box uses the shield of your coax so the 16 feet or more is good.
You can run your antenna as a vertical/sloper/inverted L/or zig zag even. Myself, I usually use a 60' wire and wrap it around and up my 32' telescopic mast while portable. Or I use a 30' wire and run up 20' or so and make an inverted L. The fun thing about being a ham is experimenting and finding out what works the best for you in your situation.
Some bands may benefit from using radials or a small ground rod depending on the antenna wire length. You can add or subtract from your antenna wire to obtain a better match for any band/s you wish.
So just run your antenna wire 22-84 feet, run to your tuner and to your radio, tune up and talk!
Packaging:
The product dispatched carefully packed
. We use only high quality and new packaging materials.
Please read carefully product title, description and include list. Any questions are welcome.
If you received broken or defective parts please contact us first, because we can resolve this problem in best way.
Handling time:
3 business days to process international orders required after receiving cleared payment. This does not include the number of business days the shipping service will take to deliver the item to you. We can upload a tracking number during handing time even before your package was transferred to logistic company for the delivery.
Shipping:
We dispatch your order during 1-3 business day. Take note, international shipping is more complicated and longer than domestic, that's why when you buy internationally it mean you are agree to wait for the package. For Economy International Delivery default stated time is 2-4 weeks. Some countries may take longer because of your country custom regulation rules or postal service. USA usually takes 3-4 weeks; Europe 2-3 weeks; Australia 3-4 weeks; Germany 2-3 weeks. All other countries 3-4 weeks default delivery time.
We are not accept any claims for shipping time! Economy Shipping mean we'll send your items with Air Mail, but we cannot promise it will be fast, because it depends on post service, flights schedules, weather accidents, custom processing and other things that out of our control.
We ship internationally and using
Economy International service (FREE shipping with tracking)
Usually it takes 3-4 weeks.
But
Delivery time parcels can be increased up to 4-5 weeks. And We don`t control it.
73!