PRIVACY POLICY

This privacy policy sets out how InnovAntennas Limited uses and protects any information that you give InnovAntennas Limited when you use this website.

InnovAntennas Limited is committed to ensuring that your privacy is protected. Should we ask you to provide certain information by which you can be identified when using this website,  you can be assured that it will only be used in accordance with this privacy statement.

InnovAntennas Limited may change this policy from time to time by updating this page. You should check this page from time to time to ensure that you are happy with any changes. This policy is effective from 1^st February 2011.

What we collect

We may collect the following information:

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What we do with the information we gather

We require this information to understand your needs and provide you with a better service, and in particular for the following reasons:

·         Internal record keeping.

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·         We may periodically send promotional emails about new products, special offers or other information which we think you may find interesting using the email address which you have provided. 

·         From time to time, we may also use your information to contact you for market research purposes. We may contact you by email, phone, fax or mail. We may use the information to customise the website according to your interests.

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We are committed to ensuring that your information is secure. In order to prevent unauthorised access or disclosure,we have put in place suitable physical, electronic and managerial procedures to safeguard and secure the information we collect online.

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You may request details of personal information which we hold about you under the Data Protection Act 1998. A small fee will be payable. If you would like a copy of the information held on you please write to InnovAntennas Limited, Antenna House, 20 Sanders Road, Canvey Island, Essex SS8 9NY United Kingdom.

If you believe that any information we are holding on you is incorrect or incomplete, please write to or email us as soon as possible, at the above address. We will promptly correct any information found to be incorrect.

The OP-DES (Opposing Phase - Driven Element System) Yagi is another development of Justin Johnson, G0KSC. The OP-DES Yagi has been specifically developed for HF applications where bandwidth and performance within one package is difficult to come by.

The OP-DES Yagi has one characteristic of all G0KSC developed Yagis, it has a 50 Ohm feed-point impedance and all impedance transformation is done within the driven element itself and therefore, the antenna is not susceptible to matching losses in the same way traditional Yagis are (more on this subject can be found here).

For the wider of the HF bands many hams opt for the OWA (Optimised Wideband Array) style Yagi to give all-band performance. However, the OWA does not provide the levels of performance lower impedance antennas can albeit the OWA has the prefer split-dipole, 50Ohm feed-point.

The OP-DES has the ends of a split-dipole bent back towards the reflector element. This provides 2 functions. First of all, the current phase in each end section is in opposing phase and therefore cancel one another out, this helps to reduce/remove side lobes. Additionally, these end sections act as impedance controllers, taking this job away from D1 (first director) and thus making the adjustment of the antenna (while in computer optimisation much easier resulting in better levels of performance. As with all of our antennas the OP-DES driven element has adjustable end sections in order that SWR fine-tuning is possible.

All band performance on bands from 40m to 12m is possible with 1MHz coverage on 10m too. When we say all band performance, we do not simply mean the SWR is at an acceptable level, the OP-DES provides excellent levels of gain and F/B throughout each band too. If you are looking for the ultimate in mono-band HF performance, look no further than the OP-DES Yagi !!

Some of the key OP-DES Yagi benefits  are listed below:

• Opposing Phase Driven Element System
  • Reduces side lobes and helps provide a much wider band antenna with constant performance characteristics
• 50Ω Direct Feed - No Matching Loss
  • The OP-DES Yagi has been carefully Computer Optimised with the 'bent' Driven element in place to ensure a 50Ω feed-point. This ensures no matching loss and minimal resistive (Ohmic) loss
• High F/B ratio
  • as with the LFA and OWL, the OP-DES Yagi has an exceptional Front to Back ratio for a direct-feed, 50Ω Yagi. Get rid of unwanted signals from behind your antenna!
• Super Wide Bandwidth
  • The broadest bandwidth of all our antennas, the OP-DES is best suited to HF applications where performance and bandwidth is needed in a single package.
• Constant Impedance & 'All-Weather' Stability
  • Following the LFA and OWL, the OP-DES Yagi is able to maintain impedance in wet weather and therefore will not de-tune like other antennas can

• Class-Leading Direct Feed Yagi Performance
  • For a given boom length, we believe the OP-DES Yagi provides superior all-round performance than any other HF direct feed Yagi.
• Simple SWR Fine-Tuning Feature
  • No two locations for an antenna are the same. With this in mind the requirements of the perfectionist as well as the every day user in our sights, the driven element of the OP-DES has adjustable end sections to allow for very simple SWR fine-tuning
• The Most Important Part of your Receiver has to be The Best
  • Your antenna is a part of your receiver and arguably the most important part of your station. You have spent thousands on radio equipment, make sure you don't short-change your set-up by choosing anything else other than the InnovAntennas OP-DES Yagi for HF
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The Unique U shaped driven element of the OP-DES can be clearly seen in the Illustration below (pink lines denote current distribution) and it is the bends at the ends of the OP-DES driven element that enhance the performance of the OWA 50Ω split dipole Yagi in order to achieve never-seen-before performance. The OP-DES is highly suited for applications requiring very wide bandwidth and consistent performance throughout. It is extremely easy to fine-tune with the OP-DES supporting adjustable end tips and to complete the package, a simple 1:1 choke balun (a few turns of coax) at the feed-point is all that is needed for the antenna to be good to go.

The bandwidth flexibility of the OP-DES means it can provide excellent solutions for HF to microwave and having a direct 50Ω feed-point means no matching devices are needed for connection to 50Ω coax and therefore losses are kept to an absolute minimum.

For both commercial and ham use the OP-DES will prove to be an excellent replacement for the age old (and rather weathered!) OWA Yagi showing superior F/B, gain and bandwidth too. For ultra-wideband applications, there is only one antenna to choose, the OP-DES !!

InnovAntennas have a Patent Pending on the OP-DES style Yagi.

 There is a Patent Pending on the OP-DES Yagi - all enquiries to InnovAntennas Limited

The OWL (Optimised Wideband Low impedance) Low-Noise Yagi is another development of Justin Johnson, G0KSC. Originally the OWL formed the basis of a DUBUS magazine article which found that low impedance antennas need not be narrow band and unstable in wet or icy conditions.

Generally, the lower the impedance of an antenna, the better performance (in respect of forward Gain (Gain) and Front to Back ratio (F/B)) can be achieved. G0KSC extended his development with focus on 12.5Ω versions of the OWL for very good reason; if a 12.5Ω OWL has its split dipole changed to a folded dipole, the feed impedance is transformed from 12.5Ω to 50Ω and thus any 'would-be' matching losses are removed and ohmic loss reduced to insignificance.

While the swapping of a split dipole to a folded dipole within a Yagi is nothing new (generally done on 50Ω split dipole Yagis to give a new, 200Ω Yagi), G0KSC also established performance could be improved further if the whole antenna (including its new folded dipole) was computer optimised as a complete unit. The results have been more than impressive and with the addition of thru-boom parasitic elements and a folded dipole place above/below the boom, light weight and portability have entered into the equation resulting in a excellent all-rounder.

Some of the key OWL Yagi benefits  are listed below:

• Closed Loop Feed System
  • The closed loop folded dipole system helps reduce the reception of man-made noise and static
• 50Ω Direct Feed - No Matching Loss
  • The OWL Yagi has been carefully Computer Optimised with the folded dipole in place to ensure a 50Ω feed-point. This ensures no matching loss and minimal resistive (Ohmic) loss
• High F/B ratio
  • as with the LFA, the OWL Yagi has an exceptional Front to Back ratio it has for a direct-feed, 50Ω Yagi. Get rid of unwanted signals from behind your antenna!
• Super Wide Bandwidth
  • While not quite as broadband as the LFA, the OWL Yagi has excellent bandwidth properties. This ensures very large portions of a given band can be used with little return loss
• Constant Impedance & 'All-Weather' Stability
  • Following the LFA the OWL is able to maintain impedance in wet weather and therefore will not de-tune like other antennas can

• Class-Leading Sky Temperature and G/T figures
  • For Earth-Moon-Earth and other weak signal modes, only the G0KSC LFA Yagi comes close to the OWL. Search for the VE7BQH G/T Table and compare the OWL with everything else.
• Super light-weight Design & Construction
  • Due to the mechanical requirements of the OWL (with thru-boom elements) the OWL is super lightweight and thus ideal for contest and field day operation
• Simple SWR Fine-Tuning Feature
  • No two locations for an antenna are the same. With this in mind the the requirements of the perfectionist as well as the every day user in our sights, the folded dipole of the OWL has adjustable end sections to allow for very simple SWR fine-tuning
• The Most Important Part of your Receiver has to be The Best
  • Your antenna is a part of your receiver and arguably the most important part of your station. You have spent thousands on radio equipment, make sure you don't short-change your set-up by choosing anything else other than the InnovAntennas OWL Yagi
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The OWL provides solid, stable performance from a compact, light-weight package. The OWL shares many benefits of the LFA Yagi and has a few very unique ones of its own. The shorter OWL models provide stunning performance for their size exhibiting extremely light-weight, compact  and high-performance antennas for both ham and commercial use. The ease of which the OWL can be fine-tuned along with its super light-weight package make it an ideal candidate for varied locations and uses. As can be seen from the SWR plot, of a 13 element 144MHz OWL across the page,  the OWL can stand on its own 2 feet as a performance innovator providing both constant impedance and exceptional levels of return loss too, and not just during dry weather!

Setup and installation is easy with only a simple choke balun (a few turns of coax at the feed-point) being required to complete the feed-line to antenna connection point. With a 50Ω driven element, matching losses are 'zero' while ohmic loss is at an absolute minimum. This means unlike many companies which present performance figures before matching loss, the InnovAntennas OWL presented figures are 'all-in' statistics.

If it is the best in light-weight, portable VHF performance you are looking for, the OWL is going to be hard to beat. Call us anytime to discuss your requirement we are always happy to help you complete your station!

Watch out for the X-Pol versions of the OWL for EME and satellite purposes which will be launched very soon!

InnovAntennas have a Patent Pending on the OWL style Yagi.

 There is a Patent Pending on the OWL Yagi - all enquiries to InnovAntennas Limited

The LFA-Q (Loop Fed Array Quad) Low-Noise Yagi takes a lot of the good points from the LFA Yagi and adds some more. the LFA-Q is a quad with a difference. Rather than placing symmetrical square or triangular shaped loops in a Yagi configuration, the LFA-Q uses the LFA Yagi style loops to produce high levels of side suppression, the difference being every element is a loop rather than just the driven element.

The shape of the loops have been formed (compressed) until the short side sections are exactly 180 degrees out of phase with one another and therefore, a cancellation effect occurs in much the same way as balanced line feeder works. This means high levels of suppression to both the sides and the rear of the antenna can be achieved.

So if the LFA Yagi does this so well, why do something different with loops forming all elements? The primary reason is gain per metre/foot of boom on a full wave element antenna can be much greater than on a half wave element antenna such as the LFA. This results in compact, high gain antennas which are constructed to stand some serious weather conditions!

For the ultimate in wide-band, direct feed (50 Ohm) performance, the LFA-Q is your choice!

Below are a list of Key Benefits the LFA-Q Yagi provides:

Buy InnovAntennas Rigid Quads

• Full-Wave Closed Loop Feed System
  • The closed loop system helps reduce the reception of man-made noise and static
• 50Ω Direct Feed - No Matching Loss
  • The LFA Yagi has been carefully Optimised in order to ensure a 50Ω feed-point. This ensures no matching loss and minimal resistive (Ohmic) loss
• High F/B ratio
  • Another attribute of the LFA Yagi is the exceptional Front to Back ratio it has for a direct-feed, 50Ω Yagi. Get rid of unwanted signals from behind your antenna!
• Super Wide Bandwidth
  • Another unique characteristic of the LFA Yagi is the excellent bandwidth the antenna possesses. This ensures very large portions of a given band can be used with little return loss
• Constant Impedance & 'All-Weather' Stability
  • A very rare feature is the ability for an antenna to provide the level of performance of the LFA and be stable in all weathers. This is provided by the LFAs constant impedance
• Wide-band Performance Maintenance & Stability
  • Unique to the LFA is Wide-band Performance Maintenance. Many antennas have their best F/B at one end of the band and best gain figure at the other end. The LFA extends its performance across a very wide pass-band

• Class-Leading Sky Temperature and G/T figures
  • For Earth-Moon-Earth and other weak signal modes, no other antenna comes close to the LFA. Search for the VE7BQH G/T Table and compare the LFA with everything else. Nothing comes close
• Highly Suppressed 'Rear Bubble' for All-Round noise reduction
  • With any side lobes being highly suppressed in all areas other than that of the direction in which the antenna is facing, your receiver only 'hears' what you want it to
• The Most Important Part of your Receiver has to be The Best
  • Your antenna is a part of your receiver and arguably the most important part of your station. You have spent thousands on radio equipment, make sure you don't short-change your set-up by choosing anything else other than the InnovAntennas LFA Yagi