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QSL image for DL5AI

HP SDR Bauprojekt von DL5AI

"Hermes 300"

Hermes Board + 300W PA + RX-Bandpassfilter + 50/12 Volt Netzteile



Verdrahtung zwischen den Aluplatten. (Bodenplatte abgenommen)

Ansicht der Bodenplatte: Temperatur geregelte Lüfter für die PA und passive Lüftung der Netzteile


Predistortion mit Röhren PA

Ich betreibe das Bauprojket "Hermes 300" an einer Ameritron AL-80B (Röhren-PA)

Das SSB Spektrum der gesamten Verstärkerkette "mit Predistortion": 

  IMD: 60 dBc  (~1 kW PEP out - Dummyload)


Die 3 fertig bestückten und geprüften Leiterplatten für "Hermes 300":

1. 300 Watt PA in 50 Volt MOSFETs Tecknik  -  Treiber 1x MRF 150 Class-A ,  Endstufe 2 x SD2933

Preis ca.  420 EUR,  Link: http://eb104.ru/shop-online-english


2. Hermes - HP-SDR (500mW),  Preis ca. 830 EUR


3. RX-Bandpassfilter, Preis ca. 200 EUR, Link: http://eb104.ru/shop-online-english


Autom. Symmetrischer Antennen-Koppler

Hamware AT-502 http://www.hamware.de/

Info: http://www.r25.de/index.php/das-tuner-interface


Inside the balanced Koppler "Hamware AT-502".


HF Antennen

Dipol 2x38m; spiderbeam tower; height = 18m

UKW Antennen

Up: 2m + 70cm Yagi vertikal,X30.

Down: balanced Koppler "Hamware AT-502" with open feeder.

Shack DL5AI

Mic + Preamp

MXL 990

Beringer Tube Ultragain MIC200


Röhren PA

Ameritron AL-80B with 3-500Z.

HP SDR Bauprojekt

von DJ7KX + DJ5DM

 "Hermes 300W"

Hermes Board + 300W PA + RX-Bandpassfilter(BPF) + 50/12 Volt Netzteile



1227086 Last modified: 2014-08-31 08:09:25, 11399 bytes

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