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HF Propagation


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20m Projects - Receivers

Click to enlarge14,068 MHz receiver by LY3LP


Click to enlarge14,069 Mhz RX IF 9 Mhz by LY3LP


Click to enlarge20m QRP RX 10,7 IF by LY3LP


Click to enlargeDirect conversion receiver for 20m CW by OH1TV
I had earlier designed QRPp transmitter "Minimal 1", which delivers 1W output on 14.060MHz and works fine.
I wanted to make a pair for it, a receiver in the same spirit.
To keep it simple, direct conversion concept was chosen.

Click to enlargeJaçanã - 20m CW Superhet Receiver by PY2OHH
A receiver for the 20m band, simple, cheap and with easily available parts in the national (brazilian) market, even by mail order.
It is a superheterodyne type, which is really necessary from this frequency upwards.

Click to enlargeLM386+AN7205 simple 14Mhz receiver by LY3LP

Click to enlargeRecepteur a Reaction 20m de F5LVG
Une détectrice à réaction est un récepteur simple relativement sensible du fait de la réaction. Ce procédé consiste à réinjecter à l'entrée d'un amplificateur une partie du signal de sortie qui est alors réamplifiée, ..

Click to enlargeSimple receiver For 40 and 20 M with an unusual tuning control by PA2OHH
Geert Paulides PA7ZEE had a nice idea, a homebrew competition of a shortwave receiver!!!
It was a nice opportunity for me to do some experiments with a direct conversion receiver with the RA3AAE mixer.

Click to enlargesuDDSon Receiver by AI4SV
My longish term goal is to build the LBS transceiver described by N6QW and KK6FUT (who I see is now AI6YR) and I am methodically working my way through that project.

Creation date : 12/08/2007 @ 20:05
Last update : 27/03/2020 @ 11:49
Category : 20m Projects
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