IA QRP-10 RX Specs

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From: Rod Cerkoney (n0rc@hotmail.com)
Date: Sun Dec 31 2000 - 12:30:22 CST


I just check the NorCal page for the latest on the IA QRP-10 building
project. There Jim Kortge, K8IQY reports the following RX specs:

  MDS -130 dBm (That's less than 0.1 micro volt
folks)

  Filter Bandwidth 230 Hz (Missed the design bogie by 20 Hz)

  Minimum Opposite
  Sideband Rejection 62 dB (Very good for a 3 pole filter)

  IF Rejection 110 dB (Excellent for any rig)

  Image Rejection 70 dB (Very good for a simple superhet design)

  Rx Current Draw 35 milliamps (VXO and receive strip combined)

OK, we're talkin' 10m. Layout, lead length...etc have strong influence
on performance. Things get "jiggy" at 28MHz ;-) What construction
practices/techniques/layout...etc. Have the greatest effect, so as to
reproduce these excellent specs?

** Happy Holidays **
73, Rod N0RC
Ft Collins CO


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