JollyDogs communications gear



14º 43.253s 143º 41.979w

Thu May 30 2019

In the old days folks didn’t have any way of knowing what kind of weather they would find until they got out here. Our pal Gary Webb on SV Sparkle built his own steel sloop complete with timber spars and traditional stays made from galvanized steel cabling treated with tar or whatever. Either his financial circumstances or his desire for simplicity kept all but a VHF radio off his boat. Several years ago his son Spike, an amazing sailor, boat technician and unmanned aircraft designer helped me sail JollyDogs from La Paz back up Baja California to Ensenada. Coming North up the Baja can be quite a slog and having access to detailed weather data and someone with a lot of experience in that region can greatly reduce the risk you might be caught out. When Spike was a kid growing up on Sparkle, they had no cell, SSB radio or Iridium, and simply had to “stick their nose out into it” to find out if conditions were good for sailing towards their destination. They spent a lot of time “hove to” if they couldn’t return to a sheltered anchorage.

Out here it’s all water for hundreds or thousands of miles. Our recent passage from PV to FP took 21 days and we got well over 1000 miles from inhabited land. The weather looked promising when we departed Mexico, but a lot can change in 3 weeks. The ECMWF model available with our PredictWind subscription proved surprisingly accurate during that passage, and as we make our way from the Marquesas to the Tuamotus it remains spot on. With his access to high bandwidth data and a PredictWind Pro account, Jamie Gifford was able to offer routing tweaks that kept us in the most favorable current conditions. That really paid off, shaving days off our passage and keeping us away from the worst of the ITCZ squalls and doldrums. It’s hard to put a price on the abuse we and our equipment avoided just due to excellent routing.
Access to PredicWind routing data is available with our Iridium Go communications gear which we purchased through PredictWind along with a plan including unlimited data and 150 talk minutes per month. New weather data is available every 12 hours and things can get a bit dynamic out here, so we update when new info is available. That makes anything other than the unlimited data plan useless, as data updates can take around 20 minutes to download at the maximum 2400 baud rate.

Sending out various blog posts and email communications to friends and family have all proven to be very important to us. There are people who want to know where we are, how we’re doing, and if we’re OK. As well, it can get a bit boring and lonely during a long passage, so crew morale is boosted by maintaining a dialogue with close friends. I’ve met single handers with nothing more than a VHF radio on board. I don’t know how they do it, or why.

While in Mexico we were happy subscribers to sail mail using our SSB (single sideband) radio equipped with Pactor IV modem. It’s even slower than Iridium for moving data back and forth and is susceptible to the whims of atmospheric disturbances and sunspot activity, so not always reliable, but mostly so. It worked fine in Mexico for short emails and weather updates, but when we got over 1000 miles from San Diego we couldn’t connect any longer due to poor propagation, and for some time the Manihi based station in the Tuamotus was inoperative so we couldn’t get weather or email via SSB. Thank goodness for Iridium.

VHF is useful for ship to land and ship to ship line of sight communications only so it’s useless for long range comms of any sort, routine or emergency. In addition to our fixed 25 watt VHF transceiver, we have two 5 watt hand held transceivers. These devices are useful for dinghy or ship to shore party communications as well as backup in the event the fixed VHF radio fails.

Various SSB and HAM nets are operated by volunteers who help us all stay in touch with and look after one another. The nets encourage all participants to provide in-situ information regarding sailing or anchorage conditions, availability of fresh water, fruit or vegetables in small villages, emergency medical or other resources, in short it’s sort of a verbal social media experience. In Mexico we participated in three different nets on occasion, and once we arrived in French Polynesia we began participating in a regional net that operates 0400 and 1800 UTC, or 0800 and 1800 ship’s time. We check in with our location, course and speed, local sailing conditions, where we’re headed and when we expect to get there. It’s an opportunity to be involved with a community of like-minded people, make new friends over the air, and ask or offer assistance when necessary. Many of the participants have been sailing this region for many months or years and can provide invaluable information about local weather, provisioning or anchorages. Besides, it’s fun and actually talking to people is a much more human experience than typing messages back and forth. For us the equipment cost was a lot higher than Iridium, but it’s free to chat so we can amortize the cost over the years of use and feel just fine about it all. There’s also plenty of inexpensive used gear out there for anyone to purchase and install.

It’s not unusual now to meet new cruisers who don’t have SSB equipment on board. There are a variety of reasons for doing so, but that decision unfortunately reduces or eliminates access to a large element of the cruising community. Satellite data communications is a tremendous resource for us, but we wouldn’t give up our SSB and HAM net participation, and we’re looking forward to meeting the heaps of folks we’ve recently chatted with over the nets.
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If we’re in range of a cell tower our Google Fi services provides us with voice and data. There’s something personal about having one’s own cell phone number, so rather than have a single phone for the family, we each have our own phone and unique USA phone number for friends and family to call. Google Fi works seamlessly in most places around the world and the cost for data and voice communications is both reasonable and predictable.

We consider voice and data communications to be safety critical capabilities, so we have redundancy. We can get weather and email data via Iridium Go or sail mail over SSB. We’ve got hand held VHF radios in case the fixed VHF packs up. We’ve got the Iridium Go voice capability for emergency medical consults and to communicate with family and friends. We’ve each got a cell phone with worldwide service, and very importantly each service has more than one credit card on file. If we had to, we could make a HAM radio voice call.

One way or another, we’re going to get through to someone when we need help, or if we can offer it up.

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