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70cm Projects - Receivers

Click to enlarge70CM RX by LY3H

http://ly3h.net/70cm-rx/

Click to enlarge432 MHz converter by LY3LP
Very simple 432 Mc converter , with 418 Mc resonator.
http://sa555.blogspot.com/2012/03/432-mhz-converter.html

Click to enlarge432 MHz RX by LY3LP
Simple 432 Mc RX.
http://sa555.blogspot.com/2012/02/432-mhz-rx.html

Click to enlarge432 MHz superregen by LY3LP

http://sa555.blogspot.com/2012/12/432-mhz-superregen.html

Click to enlarge433,9 MHz RX by LY3LP

http://sa555.blogspot.com/2014/05/4339-mhz-rx.html

Click to enlarge434 MHz superregen by LY3LP

http://sa555.blogspot.com/2012/06/434-mhz-superregen.html

Click to enlarge435,9 MHz FET converter by LY3LP

http://sa555.blogspot.com/2013/12/4359-mhz-fet-converter.html

Click to enlarge439.70MHz FM special receiver to receive my local repeater by JF1OZL
The reason of this production: In Japan, there are many local repeater in many towns. In my town we have KIDAMARI repeater. It receive 434.70MHz and transmit it in 439.70MHz.
http://www.intio.or.jp/jf10zl/kidamari.htm

Click to enlarge70cm RX by LY3LP

http://sa555.blogspot.com/2012/02/70cm-rx.html

Click to enlargePLL for 70 cm RX by LY3LP
The firmware is functional but is not completed featurewise. It locks on 438,650 MHz and is tunable with 12,5 KHz step.
http://sa555.blogspot.com/2012/02/pll-for-70-cm-rx.html

Click to enlargeSimple 435 MHZ converter, with ADE1 by LY3LP

http://sa555.blogspot.com/2014/03/simple-435-mhz-converter-with-ade1.html


Creation date : 15/08/2007 @ 00:02
Last update : 07/09/2018 @ 21:19
Category : 70cm Projects
Page read 18469 times


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