Direct Conversion Radio Receiver Using the NE602 IC Double Balanced Mixer Product Detector

A brief explanation of a direct conversion receiver using the NE602 double balanced mixer and product detector IC. This is an active balanced mixer IC widely used in radio receivers and for other RF mixing applications. It can also be used as a product detector. It has good radio frequency signal mixing characteristics, which makes it very useful as a mixer in radio receivers. It can handle moderate to high RF signal levels, but does not perform well in severe signal overloading conditions. So RF signal attenuation may be necessary for very high RF signal input levels. It has good weak signal handling characteristics with good sensitivity to weak signals. Also demonstrates the working of this IC as a product detector in a DC receiver.
#direct-conversion #radio #radiofrequency #receiver #NE602
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amateurradiouniverse.blogspot...
Soldering Iron:
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Soldering Kit:
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Soldering Wire:
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Thanks
VU2LVJ

[@johnsonstechworld]

Went through nostalgic memories of my long lost homebrewing skills! But the maximum I have homebrewed on RX side is the old L-Board six transistor superhet radio. On TX side I had gone a little more as I could not afford commercial TX then. Started with VU2VWN QRP and upgraded to 3 x 807 vacuum tube QRO with 120 W DC input, for CW/AM in those days. 73 de Jon, VU2JO

[@amateurradiouniverse]

Nice to know!

[@johnsonstechworld]

@@amateurradiouniverse 73

[@canaldopicco]

Você tem um ruído de fundo que pode ser da fonte de alimentação, não notei se você falou no vídeo que está usando fonte ou bateria, mas se estiver usando fonte, adicione capacitores cerâmicos de 100nF em paralelo com os diodos retificadores, eu tive um problema como esse na montagem de um regen.
Você deixou os terminais muito compridos, isso para RF é indutância a mais, evite. É bom também evitar de usar capacitores de poliéster em RF, capacitores de poliéster são para áudio, capacitores cerâmicos são para RF.
Eu monto meus circuitos usando somente componentes retirados de sucata, o custo é menor e você só tem que pagar pela placa e estanho. 73

[@MrtechElectronics]

Can you make a Direct convertion Reciever using TA7358 ic

[@amateurradiouniverse]

Yes, it can be done by taking the mixer out, giving a suitable output termination for audio, filter the RF components and amplify the resultant audio.

[@oasishut3120]

Ne602 or 612 online available in India ?

[@amateurradiouniverse]

It is available with very limited vendors