OH8GEJ HAM Shack - Equipment, Radios, Antenna and more.

I also hold the callsigns: KB9YXM, HB9TMJ, DG2JW as well as OH8GEJ. The station is almost completely run from Alternative energy. That is to say that I am running the Ham shack, wx station, APRS DIGI & station computer almost entirely from alternative energy. Solar panels & home brew wind generator charge 1 deep cycle battery. I am able to run most summer days without the need of electricity from the grid.

Friday, June 16, 2006

2m 144 9el2 Yagi from Vargarda Radio AB

Now anyone who has worked 2m Nordic Activity Contest with me, will know that this Yagi rocks. I don't really know what kind of Voodoo was used in addition to the damn good engineering of this antenna. For example, i am currently using 50 watts rom the FT-897 with an antenna elevation of about 20 meters. I am easily making contact in southern Sweden, Norway and at time the North cost of Poland. This is with 1 9 element yagi. My plans are to stack 2-4 of these yagis in the coming years, and to compliment the stacking with an even better mast head amplifier. Currently I use the MHP-145 which is a super low-noise Mast-Preamplifier capable of handling RF-Power levels up to 1500 Watts in SSB. The heart of the system is the low noise preamplifier LNA 145, combined with two (2) High Power coaxial Relays in a weatherproof enclosure.I think that the LNA 145 is one of the best 2-m preamplifiers available today. It features a super low noise figure of 0.4 dB, a high 3rd order Intercept Point (+ 22 dBm) and a supherb selectivity thanks to a high-Q tunable bandpassfilter at the output.



The coaxial-relays have been tested up to 2 KW SSB, they feature large goldplated contact areas and an extremely low insertion loss. The manufacturing is done with double shielded Teflon coaxial cable in order to guarantee a low losses and a high power handling capability.There is no RF-VOX and protection circuits in the MHP 145, because Vox circuits will not work propperly at power levels above 1 KW.

Back to my 9EL2 yagi. The company which makes it is a Swedish company and truthfully, I dont normally care about marketing for companies earning money for something i paid for. I just cant tell you how awesome this yagi is. 1 Yagi, good cable and even better connectors insure that I am a top low power station each adn every time during NAC.

Impedance 50 ohm
Directivity 12 dB
DF/B 20 dB
E-plane 35 degr
H-plane 39 degr
SWR <>
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