Hi all, Maybe someone's interested, I just found this experiment at http://www.domenech.org/ . In short, the author uses a TV capture card with a Conexant Fusion 878A chip as a fast Analog to Digital
Hello all, I've just received this info from my friend. This is the first commercial TRX I know that included the 137kHz transmit facility, however an external PA is still required. Not a complete so
Hello all, I am trying to restore the LF equipment at SP5ZCC. Some dust already on the transmitter, it's a shame, but already one year passed since our last activity on 136kHz! Anyway, 22.01.2005 000
Hello all, After a few hours I finally managed to make the whole station QRV on LF. A pity it wasn't earlier: I heard SM6BHZ (579) and saw DF0WD (M->O copy). At the moment I am running ca. 14A*37V=ca
Good signal from the Polish expedition after dark, but they do not seem to be receiving well. If they are monitoring this group, they may like to consider using QRSS10 if they can't hear anyone on QR
Hello all, Thanks for all the contacts. List of stations worked: OK2BVG, DL2HRE, DF0WD (twice), OH5UFO, OK1DTN, G3XDV (QRSS10), IK5ZPV, M0BMU, DF6NM, PA0BWL. I think that I-SP and PA-SP are again fir
For those interested, QSOs from the recent HF75PZK operation on LF are in the on-line log at http://www.oppzk.poznan.pl/log/ . You might be interested in applying for the Jubilee Award, for those tha
I now have two programmable divider chips and plan to make the divide by 100 to use my FT990 as a VFO. Hello, I've been using FT990 as a VFO as well: 10 W from the TRX running on ~13.77 MHz to a 50 O
Hello everybody, HF75PZK will be QRV today in the late afternoon / evening until ca. 2000z and then since 2300z onwards, until the last calling station. I just received information that there is an u
Hello all, I noticed that people are using much more turns than me in the output transformer, so I would appreciate any help in calculating the correct number of turns for the cores I am using here.
Dear all, Thanks for all the replies, both sent to the group and privately, I feel I know a little more now :) As for the question below, it's a current-switching circuit then, the DC is fed via a ch
Hello again, I think it might be interesting, I found another mode, basically MFSK + FEC: http://homepage.sunrise.ch/mysunrise/jalocha/mfsk.html In it's original version it is slightly wide for LF op
As it's MFSK, it would be possible to omit the linear PA requirement. Marek, sorry, I don't understand this statement. If you transmit more than tone simultaneously, what comes out has a strong AM e
Dear all, Little activity this weekend, I only made 3 QSOs using the special callsign SP0PAPA on Saturday. Due to obvious reasons, decision about using this special call has been taken in the last mo
Forwarded on behalf of Andy Talbot G4JNT Re JT65 and LF [...] Some years ago, Alberto introduced us to Jason, but even that is an incoherent mode and doesn't make the most of the LF path. But if the
Hello everybody, Thank you, Markus for a nice QSO, at the beginning your signal was audible enough for a CW reception here, it degraded later though. I am a little surprised with the strength of Lora
Hello everybody, A grabber at SP5ZCC (KO02pf) is temporarily running this weekend at http://sq5bpm.sp5zcc.waw.pl/grab . Equipment: T-antenna, ca. 15m vertical, ca. 160m horizontal, loading coil. Rece
Hello everybody, Okay then, I didn't plan it, but for those interested, I will also beacon throughout this night from SP5ZCC, in a similar way DK1IS does, until the Candlelight starts tomorrow. Here
Dear LFers, I just received information that I can launch the LF station using another special callsign: SP0TPAX, commemorating 80th anniversary of first (confirmed) international and intercontinenta
Dear all, The grabber has been running for the whole week in the TA mode, no luck though, but this could have been expected :) Today I've been at the club, there was the Easter meeting of ZCC members
