HB9AK's blog

HB9AK: intermittent operation - no RPR

HB9AK (80 to 15 m) is having a serious SW problem. Access was mostly not possible as from afternoon April 5. The problem is under investigation. Until problem is fully solved, only intermittent operation is available. As the SW is temporarily switched from BPQ32 to Trimode, no 'Robust Packet Radio' service is available.
HB9AK-1 and HB9AK-14 are operating normally.

HB9AK-14: 438.075 MHz WINLINK access at 10'000 feet asl

The WINLINK gateway at mount Titlis (3032 m / 10'000 feet asl) now offers access also in the 70cm band. VARA FM in mode '1200' or '9600' may be used, as well as Packet Radio AFSK 1200. Additional Packet Radio modulations (DW 8PSK4800 and others) will be added in the future. HB9AK-14 uses a YAESU FT-7900 with 40 W as TRX. The antenna is a vertically polarized dipole array with reflector, directed to the north.
Reports from distant locations are welcome.
Martin HB9AUR
Sysop HB9AK/-1/-14

Support wideband digimode on 30m for IARU R1 bandplan

Today, the bandplan for IARU R1 restricts digimodes to a bandwidth < 500 Hz. This limitation is not justified, as spectrum occupancy is the same whether you transmit a certain message slowly (using small bandwidth) in - say - 10 min or pretty fast (using larger bandwidth) in just 2 min. USKA - the Swiss amateur radio union - has proposed to change the IARU R1 bandplan in order to allow wideband (<2700 Hz) digimodes for 30 m.

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