Troubles with my RXTXv6.3: I resolved this by replacing an IC (at the input of the receiver chain) on the board.
Troubles have gone away, and the unit now plays just fine! -Mike-
(This repair was done in March, 2009, I must add.)
Monday, July 13, 2009
Tuesday, March 3, 2009
RXTX6.3 Radio
Well, this is my first blog, first entry, etc...
Very short summary:
I have just completed an SDR radio, the RXTX, version 6.3.
It worked initially, but had very high NOISE! (S-9 + 10 dB with no antenna.)
Then, it stopped working altogether.
(The noise floor is now very LOW!)
I troubleshot down to U-10; I had good inputs, but no output.
The current draw of 90 Ma had risen to 160 Ma, after failure.
Using a temp-sensor, U-10 was at 100 degrees F after a few minutes, while the rest of the ICs were 10 to 15 degrees lower.
Very short summary:
I have just completed an SDR radio, the RXTX, version 6.3.
It worked initially, but had very high NOISE! (S-9 + 10 dB with no antenna.)
Then, it stopped working altogether.
(The noise floor is now very LOW!)
I troubleshot down to U-10; I had good inputs, but no output.
The current draw of 90 Ma had risen to 160 Ma, after failure.
Using a temp-sensor, U-10 was at 100 degrees F after a few minutes, while the rest of the ICs were 10 to 15 degrees lower.
Subscribe to:
Posts (Atom)