Many chasers called me there and it seems a very good band for my friends from HB9. rst 339-319 ( maybe direct ? )Īlso a new regular band over the autum/winter months is 80m / 3558-cw for me with very good signals today on DM/BW-007. on around 10118 you can work with the big plus of cw-mode and make qso´s only a few db´s over the groundnoise.on many on my activations i work HB9AGH there with abt. mostly on 30m not so big signals as on 40m, but on 30m you can work signals with s3 - s1 due to the low qrm. In future i will be more qrv on 30m-cw and 80m-cw. you wrote 30m free of contests, but also often free of chasers,hi. However, only a few transceivers provide RTTY output waveshaping.ĪFSK is accomplished by placing the transceiver in LSB mode (some transceivers provide an LSB DATA or PKT mode for use with AFSK) and directing the PC soundcard to generate Mark and Space tones that are fed to the transmitter's audio input to produce Mark and Space frequencies at the transmitter's output.Thanks qso´s today. Recent Icom transceivers provide a Twin Peak Filter for RTTY reception that is only available when the transceiver is in RTTY (FSK) mode The transceiver displays the Mark frequency on its front panel and reports this frequency via its transceiver control (CAT) interface

Thus accurate DX spots for RTTY stations specify the station's Mark frequency.įSK requires a transceiver support in the form of a RTTY or FSK mode in which the transmitter frequency switches between RTTY Mark and Space frequencies as dictated by the signal driving the transmitter's RTTY input. The generation of Mark and Space frequencies required for Amateur Radio RTTY transmission is commonly accomplished in one of two ways:įrequency Shift Keying ( FSK), in which the transmitter is directly switched between Mark and Space frequencies via it's FSK Input (sometimes referred to as the RTTY keying signal) the FSK input must be driven by an FSK connectionĪudio Frequency Shift Keying ( AFSK), in which Mark and Space frequencies are generated from Mark and Space tones fed to the transceiver's audio input, typically driven by a soundcard's audio outputĪlso by convention, a RTTY QSO's frequency is that of its Mark frequency.

By convention, amateur RTTY uses the lower sideband, with the Mark frequency 170 hz higher than the Space frequency.

Rtty stations