Hello SDR OMs,
 
I find some mistakes in schematics for DR1 and DR2 and PCBs. I have to apologize to all . I made corrections and now is all OK please check for correct  version schematics and PCBs. Once more I am apologizing for mistakes.
 
GL es 73/72 Tasa YU1LM/QRP
----- Original Message -----
Sent: Monday, December 12, 2005 10:54 AM
Subject: sdr receivers DR1 (30 kHz -70 MHz) and DR2 (30 kHz-35 MHz) by YU1LM/QRP

 

Hello SDR OMs,

 

    As I promised 2-3 week ago I published SDR receivers no SMT components based on 74HC4066 chips outstanding performances. I had a lot of problem to publish new site version. Now links are OK but site is not looking regular. I tried whole week to solve problem but without success. This article is first part of three article related to SDR receivers and transmitters.I used SDR receiver from Alberto I2PHD as basic program for testing and measurements and software is working really very good.

I wish successfully realization of SDR receivers DR1(30 kHz-70 MHz )receiver without any coil and  without image rejection and DR2 (30 kHz- 35 MHz) with image rejection also possible realization without any coil.

 

 
VY GL 73/72 Tasa YU1LM/QRP
 


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