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Off of 432 EME for many years but trying to put together a 20-watt 10-GHz EME station. Nowadays I operate mostly 40m and 80m SSB using an Angelia-based transceiver and a 1.5 kW solid-state water-cooled amp from eb104.ru to a 160m dipole up 70 feet, fed with 600-Ohm openline. Also I sometimes use an IC-7300, a Flex 1500, or a Elecraft RX2.  All the SDR QRP transceivers can drive the 1500-watt amp, which incorporates the excellent kit from eb104.ru that employs two BLF188s. Occasionally I work 40m CW or digital modes with phased verticals and a Beverage pointed northeast. Also work CW and digital modes 20m--6m with a KIO Hex beam.

Above, from the left: an Angelia board within an Anan 10 box beside its Penny Whistle amp, next to its (tiny) Intel NUC computer.  Next, a Kenwood TS-2000X for VHF/UHF/SHF, with a Palstar HF-Auto above. Next an IC-7300. Rightmost is the (green) solid-state 2.4 kW  eb194.ru water-cooled amp.  Above is a (yellow) homebuilt tuner featured on the cover of QEX Nov/Dec 2016. Underneath is an AL-1500 that gets little use. 

These are 40m phased verticals, oriented SW-to-NE, phased by the Christman method to fire NE. The 8 radials start at 7 feet at the feedpoints and slope down to 3 feet at their ends.


  The panels above help defray  operating costs. This array of 8 Kyroceras has a nominal rating of 1600 Watts and is grid connected. Because of their acute angle and specular reflection from snow cover in winter time, they routinely yield 2 kW. I also have a grid-connected 3kW Kyrocera array on the garage: (below)



Above is my 450-foot terminated Beverage. At this SW end, I transform to RG6 via the DX Eng BFS-1 and at the receiver with a DX Eng RPA-1+. The white crime-scene tape is for deer training. The actual conductor is 16-gauge aluminum electric fence wire available for a steal ($25/quarter mile) from Tractor Supply. You can see this Beverage on the satellite view.

Above is my new KIO Hex beam. Excellent kit with low SWR on 20m through 6m. 


Let me know if you hear my beacons at 144.288 and 1296.106 MHz.




This is the green amp from EB104.ru before it was enclosed; it employs two BLF188s and is water cooled via tubing brazed to the underside of the copper heat spreader. A small sample of its output power is introduced back into the exciter for PureSignal processing.

The future default HF station is not a 100-watt transceiver driving a grounded-grid amplifier. Instead it will be an inexpensive but superior 10-watt DDC/DUC driving a high quality 22-dB-gain solid-state amp within a predistortion closed loop. 



8647853 Last modified: 2018-02-13 16:12:49, 3648 bytes

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