N2ADR SDR Frontend, Platinen von DB1CC


Helmut, DB1CC hat in der N2ADR Yahoo Gruppe angekuendigt, dass die Platinen seines Redesigns des N2ADR TRX bald verfuegbar sind. Eventuell wird er auch einen Bausatz oder eine bestueckte Platine zur Verfuegung stellen.

Bestellseite von Helmut:

Hier die Mail von Helmut:
Hi Group,

you can find some measurements on TX output of HiQSDR in the
HiQSDR files area. All values are noted in the screen shots
of my HP Spectrum Analyzer.

Some minor layout changes are done and will be completed this week. Then i
upload the newest files to the groups file area to make
it available. The partslist as well as the BOM is currently in work by DG3MDE
and will soon be completed, also some building hints & pictures.
My „project target“ is a complete HiQSDR-TRX, but its a lot of work just for one
man so i hope to get some help from the group in design and ideas & suggestions.
Currently André DL6AST has developed a 100W-PA wich is in Prototype stadium and
will be tested soon @ my Lab.
Automatic preselection/Preamp/Driver Board is currently under construction and
will be available in about 4-6 Weeks.

So more orders for the HiQSDR PCB we have, the PCB will be cheaper for all. All
boards are professional 4-Layer, gold plated, electrically tested board.

To sell Boards as part or as whole is possible but i have to do this via my
company because of the german law
(if you sell more than one, you are a commercial reseller)
and the financial auhorithies are knocking on your door…

Also i have to contact N2ADR because its a non-commercial development and this
status should be kept for the full HiQSDR-TRX project.

I will offer PCB-Boards and (SMD) preassembled HiQSDR boards and
-if there is enough request- complete professional built boards
or Kits as well.

i`ll keep you informed!

btw: personally, i think N2ADR has done the right decision to select a quit
14-Bit ADC instead a 16-Bit ADC. To achieve full 16 Bit resolution at high
frequencies, is much more challenging than in „normal“ measurement like
temperature loggers or so which is tricky enough.
What do you gain from a 16-Bit ADC, if the last two bits are always
flickering at random noise? – give yourself an answer….
It is much better to have a stable 14-bit signal than a noisy 16-Bit one…

73, de Helmut, DB1CC
Wer also interesse hat kann das ja mal dort signalisieren. Die Yahoo Gruppe heisst n2adr-sdr bzw n2adr-sdr-deutsch



aus dem Sachsenrundspruch:

Im vierten Quartal sind fuer unseren Distrikt einige 
Bau- und Weiterbildungsseminare geplant. Neben dem   
PSK31-Bauseminar, das durch den OV S01 in Zusammenar-
beit mit dem AATiS e.V. und dem Distriktsvorstand 
durchgefuehrt wird, sollen eine Einweisung in die Er-
stellung einer Anzeige ortsfester Amateurfunkanlagen 
nach Par. 9 BEMFV mit einem praktischem Teil sowie ein
Antennenbau- und Messseminar  organisiert werden. 

Weitere Informationen dazu folgen auf den Distriktssei-
ten und hier im Rundspruch. Auch wenn genaue Termine 
und Orte noch nicht feststehen, koennen sich eventuelle 
Interessenten schon jetzt unter dl2hsc at darc punkt de melden.