Up the East Coast, Again

Encouraged by the success of our cruise to the Whitsundays in 2008, we’re now planning a similar trip in the late autumn of 2009, again aiming to leave the boat in Airlie/Mackay during winter.

The plan is to leave Sydney on a southerly change somewhere around mid to late May 2009 (the target date is Friday 22 May, but this is weather dependent), riding it as far north as we can in 2 to 3 weeks. I will try to get to Mooloolaba at least, but potentially all the way to Airlie Beach if conditions are favourable.

Sydney to Mooloolaba (we may stop at Southport rather than Mooloolaba to pick up crew) is likely to be a non-stop 4-5 day passage. Assuming a 5 knot average speed (not unreasonable with a southerly blowing), we should make Mooloolaba by Tuesday 26 May if we get away early on the 22nd.

Sydney to Mooloolaba

Mooloolaba to Airlie Beach will be an island-hopping cruise with a couple of days at anchor. We will probably take the Great Sandy Strait inside Fraser Island, stoping at Tin Can Bay, Rooney Point and Lady Musgrave Island before re-provisioning at Keppel Bay Marina. From there, things are pretty flexible, but I’d probably stop at Pearl Bay, Pine Peak Island and Scawfell Island, final destination Airlie Beach.

Assuming we get away from Mooloolaba no later than 31 May 2009, I would aim to be in Airlie Beach by no later than Monday 15 June 2009. That gives us an easy two weeks of island hopping, during which we need to do eight day-sailing legs (i.e eight to twelve hours of trade wind sailing between anchorages). We could spend four to six days at anchor at that rate, enough time for snorkelling, fishing, dozing… Can’t wait!

Mooloolaba to Airlie Beach 2009

AIS – Range

I’ve come to expect AIS reception to be in the same practical range as VHF reception and have been more than happy to see ships up to about 36 miles away. When I recently picked up ships more than 200 miles away, surprise was not enough, and I had to resort to astonishment (to quote the Hitchiker’s Guide to the Galaxy)!

Not sure what happened: an atmospheric anomaly, reflecting the VHF signal back, or is there some form of repeater being used around the Sydney/Newcastle area?

AIS reception of ships in the Sydney Area, more than 200 miles away

Practical Range for HF Weatherfax Reception

I spent a bit of time rigging a long-wire antenna at home today to see what sort of range is practical for HF Weatherfax reception:

  • The antenna is now about 20 metres long, made entirely from inexpensive hookup wire.
  • The antenna is L-shaped, with one leg oriented East-West and the other North-South.
  • I’ve also connected an earth wire to a copper stake just outside my window, significantly reducing background noise.

To my delight the little Degen DE-1103 receiver pulled in the Wellington MetService broadcast on two of the four frequencies! That’s 1,000 nautical miles! Local weatherfaxes from Charleville (WMC) are now clean and crisp.

HF Weatherfax received in Sydney from Wellington

HF Weather Fax Reception

It hasn’t been really necessary on my last trip, being mostly within range of VHF weather forecasts, but getting offshore weather via HF WeatherFax has intrigued me.

If you’re carrying a notebook computer anyway, the only thing you need is an HF receiver with SSB (Single-Side Band) capability. Most people think megabucks when they hear “HF” and “SSB”, but a very inexpensive receiver will actually do the job. I bought a Degen DE1103 off E-Bay. You simply connect the output from the receiver to your notebook’s microphone input and then use one of the available software packages to decode the fax data received on the appropriate frequency at the given time! I use SEATTY from DXsoft, an amazing piece of software that literally does everything for you!

Receiving a fax using SEATTY

I was amazed at the ability of the little Degen DE1103 receiver (read some reviews here). Even at home, with the supplied 12 metre long wire antenna strung among trees, I can usually get quite clear fax reception. Out at Curlew Island one night, I strung the wire antenna from the forestay to the backstay, and found the receiver was overloaded with the sensitivity switched to “DX”. On “LO” I had perfect reception!

HF Weatherfax received with Degen DE1103 receiver and notebook running SeaTTY