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HB9AK Switzerland flag Switzerland

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Page managed by HB9AUR Lookups: 4214

 

HB9AK was one of the pioneering HAM MBOs, originally operating in RTTY when it started its operation in 1978 under the callsign of HB9AVK. HB9AVK, Paul, set the system up, improved it continuously and operated it for more than 20 years until end of 2001. When Peter (G3PLX) announced his new AMTOR system in 1980, Paul quickly recognized that this mode had the potential to improve enormously the reliability of data transmission on HF. He made intensive tests with Peter, and soon his mailbox was accessible in AMTOR. At that time, the callsign changed to HB9AK. The link of HB9AK with the UHF packet network was established a few years later. In 1993, PACTOR was born, and HB9AK offered this innovative and fast digital mode too.

When Paul decided to retire as sysop, it became apparent that it was not easy to find a successor. Only after the MBO went QRT on December 31 of 2001, Martin, HB9AUR, offered to take over Paul's job. Paul recommended to setup the MBO at the new site with new software. Classic WINLINK was selected. On July 1st 2002, HB9AK was QRV again in PACTOR-1/-2 on HF (40 m to 10 m) from Cham (located about 30 km south of Zurich, or 18 km SW of its previous location in Meilen). The link with the PACKET network is running since August 8. A scan frequency on the 80 m band was added on August 27. Since January 24, 2003, the Mailbox is also operational in Pactor-3 mode.

On August 14, 2008, HB9AK joins the WINLINK2000 system. The link with the PACKET network is discontinued.

On October 25, 2011, HB9AK adds PACTOR-4 operation.

Since January 2, 2013, HB9AK is also operational in WINMOR mode.

On August 16, 2013, HB9AK is moved to a site near Berne, Landstuhl. It is the former QTH of HB9XQ. Parallel operation of 3 TRX.

August 23, 2015: A 4th TRX as well as a 17m/15m fan dipole is installed, allowing fixed frequency operation on 20m.

December 30, 2015: Replacement of TRX2 (IC-718) with a KENWOOD TS-590SG. Added a "SCS Tracker" to TRX1 for Robust Packet Radio operation on 40m and 80m.

August 4, 2016: splitting 80/40m fan dipole, allowing fixed frequency operation also on 40m. 80m shares TRX with 17/15m.

September 1, 2016: HB9AK gets a recognition award for its "longtime continual support and dedication toward the development and use of the Winlink Radio Email System", presented by the Amateur Radio Safety Foundation.

November 23, 2016: WINLINK operation is extended with a 10m and 2m RMS on a mountain top location (Hoernli, JN47LI, 1130m asl). It uses the call HB9AK-1. It is equipped with battery backup (12V, 580 Ah)

June 8, 2017: HB9AK gets equipped with battery backup (12V, 580 Ah)

 

Here some technical details of HB9AK (JN36PV, 650 m asl):

QRGs (dial frequency): 3'613.0, 7'050.0, 10'144.4(NB), 14'108.9, 18'114.4, 21'113.5 (NB: narrow band only). Use USB for all QRGs. Center frequency is 1.5 kHz higher than dial frequency.

TRX1 (40m): KENWOOD TS-590S, dipole(N/S); Modes WINMOR, PACTOR(1-4) and Robust Packet Radio

TRX2 (30m): KENWOOD TS-590SG, dipole(N/S); Modes WINMOR(500), PACTOR(1-2) and Robust Packet Radio

TRX3 (20m): KENWOOD TS-590SG, dipole(N/S) or LogPer; Modes WINMOR, PACTOR(1-4) and Robust Packet Radio

TRX4 (80m/17m/15m): KENWOOD TS-590S, 80m dipole, 17/15m fan dipole; Modes WINMOR and PACTOR(1-4)

 

Here some technical details of HB9AK-1 (JN47LI, 1130 m asl):

TRX5 (10m): ICOM IC-706, vertical dipole; Modes WINMOR, PACTOR(1-4)

TRX6 (2m): MOTOROLA GM340, X-50; Mode Packet Radio 1200 Bd

 

Operated by Martin/HB9AUR in cooperation with SWISS-ARTG (e-mail: hb9aur "at" swiss-artg.ch)

8171114 Last modified: 2017-06-20 19:53:09, 3871 bytes

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