4 Element Yagi (SuperLite) - 11m

A 4 element Yagi Antenna for the 11m band from our ‘SuperLite’ range. Click on the images for more product details and for the electrical and mechanical properties of the antenna.

£215.00 — £249.00

Product Code – 11M4TORSUPERLITE

A 4 element Yagi Antenna for the 11m band from the Vortex ‘SuperLite’ range. Based on the very popular 3 element, this enhanced 4 element version is also manufactured from lightweight but extremely strong construction grade 6082-T6 Aluminium stock, this antenna is an excellent solution for portable or field day activities and can be errected by one person. Design has been centered to give maximum performance for the least weight and physical size. During initial testing the antenna had a 2 to 1 bandwidth of nearly 1.7Mhz with the test version covering 26.350Mhz to 28.100Mhz. Compare this to an equivalent Sirio SY4 which as a poor bandwidth of only around 500khz at best, plus of course the Vortex construction is leaps ahead of the SY4. Antenna is supplied with all hardware except boom to mast mount (see below).

We have recently included some new images from Brian 68DT228 showing his new 4 element and the inclusion of a nicely engineered ‘Pawsey Stub’ as a 1 to 1  Fully Symetrical Balun. Brian has used a section of aluminium bar a 1/4 wavelength long at 272cms (no correction for velocity factor is required as it’s not coax) fed from the driven element (coax center) and attached directly to the boom. Brian commented that the present 2 to 1 bandwidth is 2Mhz from 26.300 to 28.300MHz with resonance around 27.555MHz.

VORTEX BOOM TO MAST PLATES

All VORTEX Antennas can be shipped WITHOUT any boom to mast mounting plates. Select this option from the dropdown menu when purchasing. Other options include the choice of mounting plates and complete mounting solutions with U-Bolts and Brackets.

VORTEX PLATE ‘A’
For 30mm & 38.1mm (1.5”) Booms and 50.8mm (2.0”) Mast is suitable for this antenna.
Mounting Plates are also available separately from within the ‘Accessories’ section of the shop.
See info below for mechanical and electrical details
*When available

This is what one buyers said about the 10m 3 element version of this antenna..
“Fantastic quality product, hand made and delivered on schedule. Recommended. A1+” – Iain MM0TFU

Trevor (26DX015) installed this 4 element Yagi and comments:
“Steve – 4 Element is up and running. SWR is flat and resonant @ 27500MHz with QRN level lower than the 3 element. I used the plan and dimensions you gave me and didn’t adjust a thing – it was spot on. Antenna is on the new mast which is where I had problems with the QRN levels as I suffered from really bad Broadband noise. The Vortex 4 element has excellent rejection which helps me work an otherwise really noisy band and of course the
Vortex build quality reputation is now internationally recognised - No one else comes even close!! – Top Bloke – keep it up!!

Brian (68DT228) installed this 4 element Yagi and comments:
“Hi Steve, update on antenna performance now that propagation is rolling in. Most reports from the USA are 5/9+ and lots of interest in the antenna system that I’m using. Pacific contacts now seem easy mostly on first call and regular pile ups from both US and Canada. I am delighted with my purchase and am spreading the word! With the heavy winds we got before Xmas (gusts to 80mph) the antenna took it with ease and it was at 60feet lol. I now leave it fully up with no worries. Pawsey stub and RF choke seem to be working as planned .Cheers to all for 2013 and thanks once again for a great product. 73 Brian 68DT228.

Band:

11m (27mhz)

Element Material:

6082T6 or *AA6082T6 Aluminium Tube (VORTEX)

Boom Material:

30mm x 30mm 6082-T6 2mm wall box section aluminium

Boom Length:

4.1m

Gain:

8.44dBi

Front to Back Ratio:

>27db at 27.555Mhz

Matching:

Hairpin Match (Included)

Feed:

Via SO239 Socket

Hardware:

All stainless steel hardware and clamps included except boom to mast mount (Optional)

Element Clamps:

Standard Polyamide

Antenna Weight:

8.5kg

Element Brackets:

Genuine ‘VORTEX’ 6.35mm 6082-T6 Aluminium Plate

Longest Element Length:

5.68 meters

Power Rating:

5kw

Coverage:

26.350Mhz to 28.100Mhz (2 to 1 limits)