Alauda Projects

Electronics from China

433Mhz HC-12 SI4463, 10 MHz OCXO and some other stuff

By AP, 

            
I am pretty pleased by the outcome of my commercial endeavours on eBay. Purchasing seems to be a pleasure; until now — with just one exception — I was spared from any nasty experiences. After several small items that I ordered in part for my curiosity to evaluate speed and quality of shipments from chinese suppliers, I finally ordered some larger and more important stuff. The 433Mhz HC-12 SI4463 Wireless Serial Port Module is one. Two 10 MHz OCXO modules is the second item received.


I intend to use the OCXO for a 10 MHz reference and for some tests (educational purposes). The 433MHz module is mainly for evaluation: I heard from many sources that this is an ideal little bugger for DIY beacons and people swear by the fact that it can be used both for 2 meter and 70 centimeter bands; I have serious doubts that this is possible, so I want to test it.


433Mhz HC-12 SI4463 Wireless Serial Port Module + 10 MHz OCXO,both from eBay arrived safely today !

                


    





    
    

                        

                    

                        

                            
Electronics from China — Pixie CW
By AP,  
Power supply: DC 9v – 12v Antenna: 50 ohms, is not balanced, 7MHZ band, standing wave ratio below 1.8 Receive the static current: 10 mA @ 9 v Transmission power: 0.8W @ 9 v, 1.2W @ 12 v Frequency range: 7.023 MHz launch, receive 7.023-7.026 MHz (7.023 MHz crystals) Stray (harmonic) inhibition: – 20 db […]


                            

                                
                                                                    
                            

                        

                    

                

                        

                    

                        

                            
A Weekend Project
By AP,  
Not much to say today. For some time I wanted to tear down and clean my old Panasonic radio casette player. I am very fond of this device. A small and relaxing weekend project.


                            

                                
                                                                    
                            

                        

                    

                

            







			

	
	

		
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