Hello Mal and all, I have modified one of the old files for the new center frequency and uploaded it to this site: http://www.qsl.net/dl4yhf/t/8270Hz_QRSSS_4mHz.usr (right-click and "save as", select
Hello Emil, Forget the "VFO" field in your settings for the 8.27 kHz experiments .. you don't need it (I guess) or do you really have an *external* VFO ? In the config posted on my website, the 8270
Just a quick update: Bill, VE2IQ, just informed me that there was a 0.3 Hz offset in the configuration file. This has been fixed now (offset 0.0 Hz). File still at http://www.qsl.net/dl4yhf/t/8270Hz_
Hello Markus, Thanks for the description - very interesting. I didn't take my time to study your configuration yet, but I wonder about the reason why the ones and zeros must be separated by spaces..
Haha .. G7NKS just gave a -25 dB report for DL4YHF, while G3KEV didn't give a report at all 73, Wolf Am 25.01.2016 um 18:12 schrieb Mal Hamilton: G7NKS G3XBM Vy poor RX on wspr freq I copy both plus
Greetings all, My GPSDO prototype (with not just a frequency-locking, but also phase-locking loop) seems to run reliably now. But there is one thing which puzzles me, maybe someone here has more expe
Excuses to the group for posting this here, but I think my email directed to Markus, DF6NM are not getting through.. a new 'beta' with a modified VFO frequency offset 'calibrator' (in combination wit
Greetings all, The PIC-based GPSDO I am currently building (using a PIC16F1783, but maybe in the end it will turn out to be a dsPIC30F3013) is happily synchronizing the surplus 10 MHz VCOCXO for over
Hi Tobias, Thanks for the information. 12 Mbaud would be fine for a 'real' SDR already, and far more than a PIC with 40 MHz oscillator frequency ( -> 10 MHz 'cycle' clock) needs. To keep the project
And this one.. 2016-02-14 18:12 F6CNI 0.475674 -21 0 JN19qb +0 0.001 DL4YHF JO42fd 496 308 73, Wolf. Am 14.02.2016 um 18:59 schrieb Clemens Paul: Hi Andy, here come the first
Ok then - so the FTDI-chip based interfaces are the ones to use. In the meantime I got the serial port adapter working at 460800 bits per second (where the communication with the PIC16F1783 looks goo
Hello Tobias, Well, I do exactly that already in the GPSDO-part of the PIC: Use the PLL to multiply the 10 MHz by four, to have a 40 MHz clock for some of the "on-chip peripherals", so there's no way
Hello all, I can now confirm that the USB <-> UART (RS232) adapters with FTDI work *much* better than the old one with the 'Prolific' chip. At the village's local computer store, we found one labelle
Something nicely visible here spot on frequency, unfortunately the remote receiver isn't locked to GPS. I will report if the signal disappears at the advised time. Good luck, Wolf (near Bielefeld). p
Looks as if the carrier is PSK modulated here now - there are small "round eyes" in the line on the spectrogram, typically for step changes in the phase. Otherwise ok, with the usual smooth QSB here.
Hi Tom and Dave, Thanks also Tom, you were 599 here as usual ;-) Now it will be interesting how Dave's signal in WSPR will compare against the nice audible copy. Rick OR7T was also nicely readable he
Oh well, GM3YXM now in WSPR : SNR -8, later up to -1 dB here, confirms armchair copy in CW... so your 'scot PA' and antenna cannot be that bad Dave. Thanks again for the QSO. 73, Wolf . ...Now it
Hehe, you mounted your multi-turn trimpot exactly the same way as I do, Mal : http://www.qsl.net/dl4yhf/gpsdo/html/GPSDO_Prototype_1.jpg 73, Wolf . Am 02.03.2016 um 01:36 schrieb Mal Hamilton g3kev
Greetings all, shortly before local noon I noticed about half a dozen decodes in JT-9, message "TEST G3XIZ". Strangely none of Chris' "test" messages seemed to be uploaded to the pskreporter site. Do
RR Vincent.. I also guessed it needs to be one of the pre-formatted standard messages. See you later in any mode (my favourite would be CW but JT-9 or WSQ2 may do as well). At the moment I'm donating
