BELOW SHOWS THE TESTED RESULTS OF THE PROTOTYPE KITS 

The EME139 Board can be used for various applications up to 2500MHz. The board can easily be cut by 2mm along either side with a bench grinder to raise the filters frequency to 2400MHz. All the test results below were very consistent between Prototype boards with no tuning required to peak output power. Some improvements can probably be made around the ERA3 Multiplier stage to improve efficiency, & achieve more output power, but we didn't think that it was worth the effort for a couple dB more gain.

CONSTRUCTION IMAGES OF THE EME139 KIT3 PROTOTYPE KIT

ABOVE IMAGE SHOWS HOW THE TINPLATE OR BRASS STIP IS FABRICATED TO FIT THE BOARD.
NOTE THE 1/2 WAVE STRIPLINES ARE SOLDERED TO THE SIDES.

ABOVE IMAGE SHOWS 1MM DIFFERENCE BETWEEN THE BOTTOM OF THE PCB &
THE EDGE OF THE STRIP AROUND THE BOARD. EME139 KIT3

ABOVE IMAGE IS OF BOARD 1 WITH THE ERA AMPLIFIERS

ABOVE IMAGE IS OF BOARD 2 SHOWING THE BRIDGING ACROSS THE STRIPLINES
& HOW THE 9 VOLT REGULATOR & CAPACITORS ARE MOUNTED

ABOVE IMAGE SHOWS BOTH BOARDS READY TO BE CONNECTED TOGETHER.
NOTE THE THIN WIRE CONNECTING THE +12 VOLT PCB PINS TOGETHER.

ABOVE SHOWS BOTH BOARDS WITH TINPLATE SIDES & HOW THE PCB PINS ARE KEPT LONG TO
CONNECT BOTH BOARDS TOGETHER

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