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23cm GaAs-FET preamplifier by YO5OFH On 23cm the best way to obtain a good RX-sensitivity is to use a GaAs-FET in the front-end, since these devices show very low noise figures. This particular design is not very different from the common ones.https://www.qsl.net/yo5ofh/projects/preamplifiers/23_cm_gaas_fet_preamplifier.htm
435 + 1296MHz ATF54143 Pre-amplifier by GØMRF The ATF54143 is a PHEMT device from Agilent technologies that can provide low noise figures combined with high signal handling characteristics.http://www.g0mrf.com/432LNA.htm
A low noise amplifier (for the 23cm band) by PA4DAN I wrote a story about this amplifier for school.http://pa4dan.nl/ham/homebrew/lna23/
Selektive HEMT-Vorstufe für 23 cm durch DB6NTDer hier vorgestellte rauscharme Vorverstärker wurde so ausgelegt, dass er für alle Betriebsarte und -fälle wie ATV, OSCAR, SSB/CW usw. verwendet werden kann.http://www.db6nt.de/fileadmin/userfiles/_pdf/download_archiv/23cm_Vorverstaerker_2.pdf
Creation date : 08/09/2018 @ 21:27 Last update : 03/12/2020 @ 20:21 Category : 23cm Projects Page read 6255 times
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