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New Improved RDDS PCB with Gold surface finish			Reverse DDS Phase Lock Loop Kit for use with existing OCXOs As described in Scatterpoint February and March 2010 issues More details here including information about encoding JT4 signals
76GHz Report by G8ACE Report by G3PYB Link to G8BKE Website & 76GHz report View the 76 GHz Transverter 47 GHz Inside my 47 Ghz Transverter A Beacon System 24 GHz Amplifiers 10 GHz 5.7 GHz The 5.7GHz system 3400 MHz My 3400 MHz portable 2.3 GHz 1.3 GHz Investigations Crystal LF Jitter				The G8ACE MKII OCXO Kit This OCXO using a 5^th overtone crystal has been developed to provide improved frequency stability when operating on all the microwave bands. It has varicap frequency control for fine preset adjustment or for connection to a PLL such as the RDDS above A kit is available for this unit, more information.
		An Ovened Reference Oscillator Kit This module pictured to the right uses the same oven circuit as the MKII OCXO but is for use at 5 or 10 MHz or any special similar frequency. Using a fundamental mode crystal the circuit incorporates drive level AGC and provides a 0dbm output signal into 50 ohms. The circuit was designed by G8CPJ and implemented here using mainly surface mount components and integrated into the existing G8ACE oven design. The Oscillator is varicap controlled for phase locking to GPS or here at G8ACE also to the BBC Radio4 transmission on 198Khz. The 10 MHz signal is distributed to lock test equipment in the Shack and also the 10 GHz home station, more information.
					A x24 multiplier for use with the MKII OCXO Kit Using four semiconductors the output power of the module shown left is 40mw from 1mW drive at the band centre. The Output Filter is located at the top of the PCB. The on board 9v regulator on the underside. Module size is 110 x 55 x 30mm. More details here.