Widebander: Kevlar 9/1 un/un Antenna
There are lots of variations of this type of Wide-band antenna available and some real poor quality versions on ebay!. The secret of making this type of antenna efficient is to have the correct type of core/winding. Read the feedback it says it all. Remember that ANY WIDE-BAND antenna is a compromise compared to a RESONANT single band antenna.
Our units are COMMERCIAL GRADE at an Amateur price, Military spec Kevlar wire, PTFE Mil DEF Standard 210 wire for the un/un winding. Stainless steel fittings, PTFE SO239, and the best thing of all is the UN/UN is resin potted. Double click the pictures and look carefully at the components we use.
When you buy such an antenna make sure:
A) The un/un is resin potted for weather protection, the enclosure is UV protected not just IP66 proof as the Sun will crack the box letting in water, ask the seller this! This is so important as virtually all the eBay versions are non potted and within a few months of being outside the so called waterproof boxes are full of water!
B) The core is NOT an Iron powder core as you can lose nearly 3db using this type of core, ask the seller this!
Everybody wants to work all bands using the smallest of antennas and that just is not possible, so think carefully before spending your hard earned cash! This antenna will give you a good chance of working all bands.
Our core is a super efficient Ni/Zn unit which is custom made. The antenna uses a 9/1 un/un PTFE wound Mil spec’ wire rated @ 500 watts pep with PTFE SO239 and 2 x Green Kevlar (unbreakable under normal circumstances) lines. NOTE: The un/un core is NOT Iron Powder, but it is a quality custom made Ni/Zn mix.
DOUBLE CLICK THE ABOVE PICTURE FOR A LARGER VIEW
ONLY £85.00 plus £12.00 packing/postage to UK mainland:
(The individual parts would cost you more!)
So simple to use, just un-wind and throw out the counterpoise and connect it to the RIGHT stainless steel bolt (or you can connect earth rods instead), then un-wind the radiator and throw the throwing line into a tree or string it up to the house gutter or tree then connect it to the LEFT bolt, sit the un/un box on the floor, connect up your coax and off you go….dead simple! or, you can fix the un/un to the house facia board and run the 2 lines around the facia board.
Below is the superb 9/1 un/un rated at 500 watts (tested @ 1kw Av), PTFE wire wound on a Ni/Zn core (NOT IRON POWDER). We use this unit in our WIDEBANDER which gets rave reviews from around the World. Core is potted, after all you are going to use it outside!, stainless steel bolts and strain reliefs and PTFE SO239 socket. Check it out on YouTube (G4ICD 9/1 un/un). …………..cost £45.00 plus £5 UK packing/shipping:
Also available is a 1kw AV dual core 9/1 un/un version which has the PTFE wires in PTFE sleeve.
DOUBLE CLICK THE ABOVE PICTURE FOR A LARGER VIEW
The G Whip wideband antenna comprises of a super efficient 9/1 un/un and 2 lengths of kevlar wire, the 22 mtr radiator and a 20 mtr counterpoise are supplied or you can use an earth rod in place of the counterpoise. Resonance/matching is achieved with a good trans-match from 3.6MHz to 50MHz with a maximum VSWR of under 2 to 1. (not tuned as you cannot tune an antenna with an ATU, you can only match it!). Sloping radiator length is approx 22 mtrs which can be dog legged.
These units are made to a high specification as all G Whip products are, high quality box, high quality PTFE socket, MIL spec PTFE wire, and finally 2 lengths of unbreakable Kevlar wire complete the unit ………….checkout You Tube G4ICD 9/1 balun, this will give you some idea of what you can do. You can also just buy the un/un 9/1, see the un/un pages.
“Value for money”
Mini Widebander: 9/1 un/un Lightweight Kevlar Antenna
There are lots of variations of this type of Wide-band antenna available, but the secret of making it work efficiently is to have the correct core/winding. Read the feedback it says it all.
Mini Wide-bander, a professional 9/1 un/un made of PTFE wire wound on non iron powder cores (Ni/Zn) potted in a REAL quality box with stainless steel bolts and strain reliefs plus PTFE SO239 socket.
The G Whip mini-wideband antenna comprises of a super efficient 9/1 un/un, the 22 mtr radiator and a 20 mtr counterpoise are supplied or you can earth the counterpoise bolt instead. Resonance/matching is achieved with a good trans-match from 3.6MHz to 50MHz with a maximum VSWR of under 2 to 1. (not tuned as you cannot tune an antenna with an ATU, you can only match it!). Sloping radiator length is approx 22 mtrs which can be dog legged.
Power handling is 150 watts pep, crazy price of £70.00 plus £12 UK p/p
Fit Radiator to un/un left side bolt, counterpoise is supplied ready to fit or just use an earth on the right hand bolt, supplied with kevlar wire on spools.
Super lightweight 9/1 un/un made of PTFE wire potted with stainless steel hardware, we let you see the inside of the box!!
Click the image for a LARGE view
Quality nobody can match!