I have worked quite a few DX stations on both 7035 and 7070. I see more long DX's on 7035....more USA stations on 7070.
I see no Pacific area stations in any of those windows. I have worked Europe Africa and the Middle East on 7035. Jose, CO2JA Alan Tindal wrote: > Well Bonnie I don't know why your not hearing digi activity down at > 7.030 - 7.040. In a half hour listening down on those frequencies I > copied 24 different callsigns, in this part of the world all the digi > activity is between those frequencies. > > 73 Alan G3VLQ > > ----- Original Message ----- From: "Roger J. Buffington" > <[EMAIL PROTECTED] <mailto:barrister54%40socal.rr.com>> To: > <digitalradio@yahoogroups.com > <mailto:digitalradio%40yahoogroups.com>> Sent: Wednesday, January 03, > 2007 3:19 AM Subject: Re: [digitalradio] Re: Trends in Frequencies > for 40m Digi Keyboarding > > > expeditionradio wrote: > >> > >>> > >> Considering USA's recent diminishment of the data subband segment > >> on 40 meters, the projected increase in the number of Extra > >> operators, the declining use of morse CW in the world, and the > >> increasing use of digital keyboarding, the trend is heading > >> toward more digital keyboarding being used in USA in the > >> 7020kHz-7040kHz part of the 40m band, especially for DXing. This > >> is compatible with bandplans and actual use of digi keyboarding > >> in the rest of the world. The newer keyboarding modes are able to > >> decode better than -13dB SNR, so this makes low power DXing a > >> reality for the average USA ham on 40 meters. Throughout most of > >> the world, 7040-7100kHz is filled with QRO SSB. The SSB QRM makes > >> 7040-7100kHz somewhat uncompatible with low power and weak signal > >> digi keyboarding DXing. > >> > >> 73 Bonnie KQ6XA > > > > The above is news to me. I rarely hear any digital signals on 40M > > much below 7.065. The bulk of keyboard digital activity seems to > > take place from about 7.069-7.075 or so. If there is a trend > > towards digital qsos down around 7020-7040 it is not discernible. > > It is true that SSB from countries that permit it around 7070 is > > sometimes a problem, but I sure haven't noticed a "trend" towards > > USA ham using the digi modes moving down around 7020-7040. > > > > de Roger W6VZV
