Eric,
I just finished putting the interface kit together - it was a breeze
to assemble and it works great. With the
standard D-44 box, anytime I touched my desk lamp near my radio I got a
60 cycle hum in the
radio audio. With the interface kit the problem is gone.
My only small suggestion on
My opinion :
CW and RTTY : 50 watts
PSK-31 : 25 watts - should be sufficient most of the time.
José F5JD
John Denson a écrit :
When using the internal 100 watt amplifier, what is the maximum power
output that can safely be set for CW, RTTY or PSK-31?
John, AI6A
When using the internal 100 watt amplifier, what is the
maximum power output that can safely be set for CW, RTTY or PSK-31?
John, AI6A
Jim,
I agree, this was really a very strange failure in our case. We found out
that the circuit did not function with our test program if the "sinc" and
"multiply" options were included. When we removed those functions from the
control program, both I and Q signal were present. We also noticed
Tony jumpered where he did, I jumpered the 5 volt output (directly
from the leg of the 7805) to the pin in the header where it was carried
off the PIO board. I believed the traces were too small and I had
damaged them when changing over from "pre-RFE" to "post-RFE".(3
board to 4 board st
Looking at the picture a few of the crappy solder joints on my PIO
board were located at those pins on the header that Tony jumpered
around. I read about the heat problem with the DDS chip in an old
forum message and did some probing around when I first had the dropout
problem. It indicated that
At 06:09 AM 10/1/2005, Ahti Aintila wrote:
I can confirm Eric's statement. One of our three SDR-1000 systems had this
problem. Cooling down the AD9854 helped temporarily. Then I installed a
bigger heatsink that worked a couple of weeks until the synthesizer got
damaged so badly that it did not wo
Tony KB9YIG had a similar dropout last year and prepared
this webpage to show how he soldered jumpers around what
might have been a poorly soldered plug/socket problem:
http://www.n9vv.com/SDR-1000-KB9YIG-GND.html
perhaps Wayne's solution is this simple?
de Ken
Ahti Aintila wrote:
I can confirm
I can confirm Eric's statement. One of our three SDR-1000 systems had this
problem. Cooling down the AD9854 helped temporarily. Then I installed a
bigger heatsink that worked a couple of weeks until the synthesizer got
damaged so badly that it did not work any more with any version of the
Power
Folks
Flex Radio Friends Teamspeak forum 10-01-05
Bob – K5KDN mentions working on a facility for
saving all the settings of the radio in software configuration for later
recall.
Gerald – K5SDR
Gives a comment about working with John – W5GI
testing “RFI on transmitted signal”
This is
Hi Frank,
Frank Brickle wrote:
One of the things we're eager to find out is whether running the
system entirely from ram disk will iron out some of the glitches
associated still with using jsdr on a totally vanilla OS
configuration, that is, with no low-latency patches, not running jack
as
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