Excellent setup at IK4WLV

….. always facing the Moon, after a little more than a year of honorable service, I dismantle the 2 x32 M2 antennas to make room for the new array of 4x PA144-XPOL-24-7BGP antennas, much shorter than the previous M2 antennas but really very performing. The new antennas are well made and very robust, Goran YU1CF is always very helpful with explanations and data about the antennas. The assembly of the PA144-XPOL-24-7BGP requires no manual, everything is carefully labelled, so that no parts can be reversed. the first tests have been very positive, I have done very interesting listening to single Yagi stations with power under 500 watts. The SWR measured is on the order of 1:1 across the band and in both polarizations, even with wet antennas the SWR worsens very little… For more look at: IK4WLV

Read more...Excellent setup at IK4WLV

Tri-band 6 element HF Upper Bands and CB Radio Yagi Antenna 3B-222

Perfect optimized Tri-bander 3B-222 with excellent performance. Covers all three main upper bands. 20 m, 15 m 10 m as well as 11 m all channels. Full range. Uses a common feed line. One cable for all bands. 3-Band antenna uses 2 active elements on lower frequencies and 2+1 elements on 27 – 28 MHz Perfect optimized Tri-bander with full coverage: 20 m band: 14 MHz – 14.35 MHz 15 m band: 21 MHz – 21.45 MHz 10 m band: 28 MHz – 29.3 MHz CB Band: Australia: 27.055 MHz to 27.355 MHz or channels 8-35 Marine radio: 27.68 MHz to 27.98 MHz or channels 68-98 Standard: 26.965 – 27.405 MHz or channels 1-40 Wide coverage: 26.965 – 27.855 MHz or channels 1-80

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Review of PA144-11-6BG by Steve GM0ULK YouTube

Review of PA144-11-6BG by Steve GM0ULK I required a 144Mhz antenna for single operator portable ops with as much gain as practicable, the antenna had to be able to be transported in a average sized car and erected by one person on site in various conditions. I decided to try the Antennas and Amplifiers PA144-11-6BG antenna. This review covers what is supplied, single operator assembly, analyser test and thoughts on construction. Note that the antenna is not supplied with any assembly instructions, but it is quite straight forward to assemble. The antenna will need to be in the field to assess performance during UK contest activity, I should get this done in the next video on this antenna. 144Mhz UK activity is low outside of contest times, hence a reliable test will need to be preferably aligned to a vhf contest. 144 Mhz Contest antenna from Serbia.First look and build (not…

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PA50-9-12BGEXSHD YouTube Overview and Report by VK2KRR

PA50-9-12BGEXSHD YouTube Overview and Report by VK2KRR

I was the only station in Australia able to decode signals from DU6/PE1NSQ station at that moment using PA50-9-12BGEXSHD Or direct link: VK2KRR – Video Transition area between element sections is really good…. Just a quick email to show you that today got signals to and from the Phillipines DU6/PE1NSQ on 6m WSPR. Too weak for any other mode, although I was hearing better than he was, could probably have done JT65 maybe. As you can see, I was the only station in Australia able to decode signals from that station. It was probably partly conditions, but the antenna certainly played a big role in being able to do this also. This also gives me the most distant TX and RX path for January 6m WSPR Leaderboard table that I run. Antenna is very good. Leigh VK2KRR   Link to PA50-9-12BGEXSHD antenna.

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Personal DX record using PA144-432-19-3-2C Dual Band Antenna by GM4FVM

New personal DX record using PA144-432-19-3-2CB Dual-Band antenna Thanks for my new antenna PA144-432-19-3-2C. I now have this antenna in the air. 5 August I worked EA8TJ, on 2m tropo, a distance of 3261.69 km. This is only 6.67km less than the all time 2m tropo record, made by GM4ZJI the same day. This is 534km more than my previous best moon-bounce dx, and 1192km better than my previous best ever non-moon contact on sporadic E. Your antennas are very good! Jim GM4FVM

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New VK7 and ZL National and State record 2458km with PA1296-36-3BUT Established by VK7HH

New National and State record using PA1296-36-3BUT 2458km established by VK7HH Top yagi is a 23cm PA1296-36-3BUT  36 element from @antennas_amplifiers. This antenna coupled with a 25W PA/preamplifier in the box now holds the current VK National record on 1296 at 2458km! Thanks Goran, antenna worked better than expected! Posted on Instagram and Facebook Also with PA432-14-3B antenna on above picture i made a few contacts to NZ, although not records, still over 2300km Hayden VK7HH   YouTube video:

Read more...New VK7 and ZL National and State record 2458km with PA1296-36-3BUT Established by VK7HH

70cm 432MHz Yagi Effect of Metal Mast Passing Through Element Plane

70cm 432MHz Yagi Effect of Metal Mast Passing Through Element Plane

Calculated influence of metal mast passing through element plane on super low noise Yagi Antenna PA432-26-7BGP with G/T 9dB Original question: What is the real effect of a metal support mast going through the element plane of a 432 MHz long yagi? I am talking about an array of 4 long yagi’s 4-8 m long, horizontally polarized and mounted on the usual H-frame. In real life this means that 2 yagi’s are mounted above each other on a vertical metal support mast, about 50-60 mm in diameter. This mast crosses the horizontal element plane, and is mostly due to the construction not located in the element center. As this mast is half way the boom at several wavelengths distance from the dipole, the influence might be minimal to the antenna pattern, and in fact a lot of people seems to use this configuration on their 70 cm EME station, without reporting any performance issues.  Besides some…

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How to Economically Stack Four 23cm PA1296-36-3BUT Antennas with Two VHF-UHF Dual Band Yagis PA144-432-19-3-2CB

23cm PA1296-36-3BUT Antennas with Two VHF-UHF DualBand Yagis PA144-432-19-3-2CB

Calculated needed distances for Economical Stack of Four PA1296-36-3BUT and Two PA144-432-19-3-2CB for EME. With Yaesu G-5500 Azimuth Elevation Rotator Systems. All Metal Pipes. Original question: I would like to get into EME (moon bounce), I do have limited space so 5-6 metre long booms are out, so my thoughts were to stack and bay 4 PA1296-3BUT antennas on a H frame, I can make the H frame from Glass fibre scaffold tubes and main mast from glass fibre. I need to remotely steer the antennas, however looking at the Yaesu G-5500 this is huge compared to the spacing of the antennas, I am concerned about having so much metal in the centre of the antennas. Please advise, is there a better option to the G5500 rotators. I noticed the driven element phasing, I presume that the driven element can be turned around on the boom to get this correct.  Can you also supply 4 electrically identical low…

Read more...How to Economically Stack Four 23cm PA1296-36-3BUT Antennas with Two VHF-UHF Dual Band Yagis PA144-432-19-3-2CB