Re: U3S transmitting- how to troubleshoot
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Hi, following up on this, I've certainly bungled my U3S build somehow. I programmed it for CW and sent tests on two bands with a known-good antenna, and someone with a good waterfall display couldn't pick it up from 1000 meters away. I guess I need to get a scope or put it on a spectrum analyzer. I'm at a loss, though.
I put my DVM on the antenna output, parallel to it, and I get a couple of volts during some of the transmit. That makes me think it's sending something on the antenna. Can I/should I short the LPF in relay 0 to rule it out?
On Wed, Nov 8, 2017 at 11:59 AM Ted Timmons < ted@...> wrote: hey, thanks all! I moved to the center of the frequency and then went a little bit offset from there. The WSPRlite would choose something random in the range, so I thought tuning to the center was correct.
Everyone graphs recent traffic to find a good "hole" in the frequency range, right?
On Wed, Nov 8, 2017 at 11:10 AM Bob Sutton via Groups.Io <zl1rs= [email protected]> wrote:
... and avoid transmitting in the middle of the WSPR 'band' Ted,?
your signal is guaranteed to be stepped on there!? Check the 40m
band Activity list on WSPRnet???
and pick a frequency off to the side of 7.040100
73, Bob? ZL1RS
On 9/11/2017 7:42 AM, Hans Summers
wrote:
Hi Ted
Wrong frequency. You entered the WSPR center frequency "USB
dial frequency" from the WSPRnet homepage. This is the
frequency you set on a USB receiver in order to get the WSPR
200Hz sub-band centred at 1500 Hz audio. The frequency you
enter into the Ultimate3S must be the ACTUAL transmit
frequency. So add 1500Hz to your frequency configuration and
try again :-)
73 Hans G0UPL
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