SGC HF SSB User Manual download pdf

Farallon Electronics [email protected] 415•331•1924

SSB/HF Radio Applications in Modern Sailing Vessels

Eric Steinberg, Farallon Electronics

So you’re sailing across the ocean and you want to be able to call home while on the way. But

most of all you want to be heard if you call for help from the middle of nowhere.

Communications on the open ocean has always presented a problem. The distances are vast and

the transmitting platform is small, unstable and designed for a purpose other than being a radio

station. If we exclude satellite technology, choices for the average mariner to communicate several

thousand miles are about the same as they were 50 years ago. Marine Single Side Band (SSB) radio,

also referred to as HF radio, is an “old standby” of voyaging vessels both small and large. It is

called HF, or High Frequency, because of the frequency range used, 3 to 30 megahertz (Mhz).

Medium Frequency (MF) is below at .3 to 3 Mhz and Very High Frequency (VHF) is above at 30 to

300 Mhz.

Commercially available marine SSB radios are pretty sophisticated machines. They range in

price from $1500 to $10,000+ with many different configurations available. As with most electron-

ics, from car stereos to computers, the price of equipment goes up with features and power capabili-

ties. Output power, expressed in watts, of common marine SSB equipment is 150 to 400 watts with

some shipboard equipment in the 1000+ watts range. Anything over a 150 watt radio is a big ma-

chine and for all but a few yachts too expensive and unnecessary.

Transmitting over the airwaves with a SSB radio is always free as long as you’re not connected

to a commercial service. It is for this reason that SSB is most often used for vessel to vessel commu-

nications when the 30 to 40 mile range of a VHF transceiver is insufficient to cover the distance

between the two vessels. You can’t beat it for things like “Hey Jim, how’s the weather over there?”

Current and upcoming satellite technology is better suited than SSB for making a connection to a

landline phone, but the per minute air time charges are real, and so are the monthly service subscrip-

tion fees (whether you use the phone or not). The average “Jim” will probably tire of you calling on

the sat phone and costing both of you $$$!

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Summary of Contents

Page 1

Farallon Electronics [email protected] 415•331•1924SSB/HF Radio Applications in Modern Sailing VesselsEric Steinberg, Farallon ElectronicsSo y

Page 2 - Figure 1a

Farallon Electronics [email protected] 415•331•1924Conclusion By following some basic guidelines and techniques a high performance SingleSideb

Page 3 - Figure 1b

Farallon Electronics [email protected] 415•331•1924Materials, Manufacturers and Vendors• 150 watt Marine SSB radio & tuners Icom, Furuno,

Page 4 - Tuner

Farallon Electronics [email protected] 415•331•1924Sending Email and Data Over HF Radio Sending data over a SSB using PACTOR modemodems has be

Page 5 - Figure 3a

Farallon Electronics [email protected] 415•331•1924with. The second is the bonding system that is intended to tie all of the metal items with

Page 6 - Figure 3b Figure 3c

Farallon Electronics [email protected] 415•331•1924folded in half is one solution and sometimes the ultra thin .001” x 2" copper is the o

Page 7 - Figure 4

Farallon Electronics [email protected] 415•331•1924A manual tuner will also do the job of tuning a whip or backstay, but a manual tuner needs

Page 8

Farallon Electronics [email protected] 415•331•1924BackstayTeflon tubing extendto 7' above deckBackstay insulatorTurnbuckleGTO-15 to tune

Page 9

Farallon Electronics [email protected] 415•331•1924Insulating a backstay can be expensive depending on what type of rigging you have, wire rop

Page 10

Farallon Electronics [email protected] 415•331•1924Wire, Connectors and Techniques The cost of high quality materials are a drop in thebucket

Page 11

Farallon Electronics [email protected] 415•331•1924HF Radios and Battery VoltageWhen transmitting a SSB radio on a 12 volt DC system, the peak

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SGC HF SSB User Manual

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