From: Stefan Teuscher
To: QRPLabs@...
Sent: Sunday, September 16, 2012 5:11:04 PM
Subject: [QRPLabs] UQRSS runs much too slow
Hello all,
first many thanks to Hans G0UPL for the quick delivery of the kits.
The first one I have built up yesterday, but struggling with a problem:
The MCU seems to run much too slow. This is indicated by the clock in
the display, which changes the seconds after 6 or 7
seconds (and not
every second which would be normal), and all transmissions are much too
slow. E.g. the WSPR-transmission frame lasts not nearly 2 minutes but
lasts about 12 minutes!
I have no GPS (I have just ordered one).
I have checked the oscillator, seemms to be ok (8 Vpp), also the signal
at pin 9 of the MCU: TTL-level 10.140.200 Hz (after I have changed C5
from 22 pF to 4,7 pF otherwise I could not reach 10.140.200 - but that
cannot be the reason for this behavior because it was the case just
before the change of C5).
The MCU has the version V1.05.
Because I have ordered two kits I tried both MCUs - but they behave
identical.
Thats my config:
Speed: 001
Frequency: 10,140,200
Callsign: DL4GCS
Message: 73
Frame: 02
Start: 00
CW Ident: 00
Locator: JN47
Power: 23
Use GPS: off
GPS Baud: 09600,01,1,8
AF Output: off
AF Frequ: 1300
Inv. FSK off
FSK
(Hz): 4
FSK Adj: 1,300
Cursor: 4
Has anyone any idea?
73s
Stefan, DL4GCS
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