Search found 5445 matches

by jimh
Sun Dec 16, 2018 5:37 pm
Forum: SMALL BOAT ELECTRICAL
Topic: Display of AIS AtoN on Lowrance HDS-8
Replies: 15
Views: 13494

Re: Display of AIS AtoN on Lowrance HDS-8

UPDATE: now about three years after I initially wrote this article, I happened to again investigate the AIS AtoN signals being send during the Winter navigation season on the Great Lakes, or in particular, on Lake Erie. I found AIS AtoN icons that were new and different from the ones used in 2015. S...
by jimh
Sun Dec 16, 2018 4:40 pm
Forum: The GAM
Topic: How to use the WHALER.COM Website To Locate Drawings
Replies: 0
Views: 33

How to use the WHALER.COM Website To Locate Drawings

Boston Whaler provides a great deal of information on their website about their products, including detailed mechanical pictorial drawings and schematic electrical wiring diagrams. I describe the path to the information: ⋅ go to the URL http://WHALER.COM with a web browser ⋅ at t...
by jimh
Sun Dec 16, 2018 4:21 pm
Forum: REPAIRS and MODIFICATIONS
Topic: 170 Montauk: Identify Part Name
Replies: 2
Views: 27

Re: 170 Montauk: Identify Part Name

See this drawing for a 2012 170 MONTAUK boat: http://bostonwhaler.com.s3.amazonaws.com/resources/170-Montauk-Hull-Outfit-2012.pdf The component you are asking about may be shown and identified by a CALLOUT designator. Check the part list by CALLOUT number to see if the part you need to be identified...
by jimh
Sun Dec 16, 2018 4:17 pm
Forum: REPAIRS and MODIFICATIONS
Topic: Teak gunwales
Replies: 5
Views: 65

Re: Teak gunwales

Does that company have a website where their products are listed with prices and availability? I never heard of them before.
by jimh
Sun Dec 16, 2018 11:01 am
Forum: VHF MARINE RADIO
Topic: VHF Marine Band Antennas
Replies: 1
Views: 19

Re: VHF Marine Band Antennas

In regard to how to measure the SWR-bandwith of a VHF Marine Band antenna using a ship VHF radiotelephone transmitters, the range of frequencies the transmitter can be operated on is limited. Below is a list of suggested channels to use for testing antenna SWR bandwidth. These channels have been cho...
by jimh
Sun Dec 16, 2018 9:47 am
Forum: VHF MARINE RADIO
Topic: VHF Marine Band Antennas
Replies: 1
Views: 19

VHF Marine Band Antennas

For the VHF Marine Band there are three general types of antennas available: ⋅ antennas tuned for the frequencies used by a ship VHF radiotelephone transmitter ⋅ antennas tuned for the frequencies used by a ship AIS transmitter ⋅ antennas tuned for an intermediate frequ...
by jimh
Sat Dec 15, 2018 3:56 pm
Forum: REPAIRS and MODIFICATIONS
Topic: Teak gunwales
Replies: 5
Views: 65

Re: Teak gunwales

You raise two interesting questions. First, I am not clear on exactly what you will find under the teak gunwales on your 1986 boat--maybe the fiberglass gunwales you are seeking are already there. If the fibgerglass gunwales are actually an additional molded part added to the hull, I am certain they...
by jimh
Fri Dec 14, 2018 6:38 pm
Forum: REPAIRS and MODIFICATIONS
Topic: 1987 Montauk 17 Rub Rail Gap
Replies: 3
Views: 54

Re: 1987 Montauk 17 Rub Rail Gap

See the article on RUB RAIL replacement in the FAQ: http://continuouswave.com/whaler/reference/FAQ/#Q13 For the black vinyl to become detached from the plastic receiver track is quite common. Heating the black vinyl rub rail insert with hair dryer will make it more pliable and easier to push back in...
by jimh
Fri Dec 14, 2018 2:32 pm
Forum: GLOBAL NAVIGATION SATELLITE SYSTEMS
Topic: GPS III Scheduled for Launch December 2018
Replies: 5
Views: 223

Re: GPS III Scheduled for Launch December 2018

There are just a few days to go before the GPS-III SV-01 launch. The SpaceX Falcon 9 booster will be launching in the expendable mode, meaning there will not be any attempt to recover the first stage. There is speculation that the contract with the Air Force for this mission calls for that provision...
by jimh
Fri Dec 14, 2018 1:47 pm
Forum: VHF MARINE RADIO
Topic: New DSC Recommendations
Replies: 17
Views: 3210

Re: New DSC Recommendations

Re the ability of a DSC radio to sent an ACKNOWLEDGEMENT of a DISTRESS ALERT call: I believe that only Class A DSC radios are allowed to do this. Sending an ACK to a DISTRESS ALERT may cause the automatic repetition of the alert at periodic intervals by the originating radio to stop. You don't want ...
by jimh
Thu Dec 13, 2018 11:24 pm
Forum: The GAM
Topic: Assessment of c.1984 CENTER CONSOLE 15 with 70-HP
Replies: 13
Views: 475

Re: Assessment of c.1984 CENTER CONSOLE 15 with 70-HP

I owned a pair of c.1987 Yamaha 70-HP two-stroke-power-cycle engines. There were great engines. Around 4,000 to 4,100-RPM their sound changed noticeably, and they really like to sing at that speed. I think the displacement was 850-cc. The battery charging output from the alternator was very modest. ...
by jimh
Thu Dec 13, 2018 12:17 pm
Forum: The GAM
Topic: Best Whaler for St John River, Jacksonville, FL
Replies: 6
Views: 408

Re: Best Whaler for St John River, Jacksonville, FL

If you plan to be underway with six people for a "long day" you should get a boat with a marine toilet.
by jimh
Thu Dec 13, 2018 12:01 pm
Forum: The GAM
Topic: Assessment of c.1984 CENTER CONSOLE 15 with 70-HP
Replies: 13
Views: 475

Re: Buying a classic Boston Whaler

mjr119 wrote:What should I look out for?

For advice on buying a classic Boston Whaler, see my article in the REFERENCE section:

Buying Classic Boston Whaler Boats
http://continuouswave.com/whaler/reference/buying.html
by jimh
Thu Dec 13, 2018 11:58 am
Forum: The GAM
Topic: Assessment of c.1984 CENTER CONSOLE 15 with 70-HP
Replies: 13
Views: 475

Re: Assessment of asking price

[Do any readers have] any input? Here is my input: An asking price of $4,500 for a nice condition 1984 Boston Whaler CENTER CONSOLE 15 is reasonable, with the following assumptions: --the boat is on a trailer, and the trailer is a suitable trailer, in good condition, ready for the road, and does no...
by jimh
Thu Dec 13, 2018 12:24 am
Forum: The GAM
Topic: Best Way to Sell A Boston Whaler to a Whaler Enthusiast
Replies: 2
Views: 375

Re: Best Way to Sell A Boston Whaler to a Whaler Enthusiast

John--If you want to get advice on selling a boat to a Boston Whaler enthusiast, please do not solicit a discussion in the MARKETPLACE forum. MARKETPLACE is only for listings of boats or related items that are for sale, and it is not for discussions about how to sell a boat or how to reach buyers. M...
by jimh
Wed Dec 12, 2018 7:39 pm
Forum: SMALL BOAT ELECTRICAL
Topic: Actisense NMEA Gateway Revised
Replies: 2
Views: 995

Re: Actisense NMEA Gateway Revised

Actisense have released the new firmware for their NGW-1 NMEA2000 protocol convertor mentioned earlier in this thread. The new firmware is still in a beta version. With the new beta firmware installed, the NGW-1 protocol convertor will also be able to be configured or set up using another new softwa...
by jimh
Wed Dec 12, 2018 5:39 pm
Forum: GLOBAL NAVIGATION SATELLITE SYSTEMS
Topic: Congress Authorizes Terrestrial Back-up for GPS
Replies: 1
Views: 485

Re: Congress Authorizes Terrestrial Back-up for GPS

The full text of the lengthy legistlation that affects the Terrestrial Back-up Timing System can be read at

https://www.congress.gov/bill/115th-con ... 66865f7ba1
by jimh
Wed Dec 12, 2018 4:10 pm
Forum: MARKETPLACE
Topic: Request appraisal for 1969 Sakonnet
Replies: 3
Views: 548

Re: Request appraisal for 1969 Sakonnet

A 1969 SAKONNET in truly excellent condition ought to fetch several thousand dollars. Any accessories included, such as a trailer, an outboard engine, canvas, covers, typical gear like anchors, lines, fenders, coolers and so on, and up-to-date electronics will add more value. The value of the total ...
by jimh
Wed Dec 12, 2018 1:50 pm
Forum: VHF MARINE RADIO
Topic: New DSC Recommendations
Replies: 17
Views: 3210

Re: New DSC Recommendations

I have browsed the ITU Recommendation R-M.493-15 searching for mention of "Class H". I found that on folio 42 in TABLE A1-4.9, under the rows "Polling" and "Polling Acknowledgement" that the Class-H device is not required to perform those DSC functions. However, neither...
by jimh
Wed Dec 12, 2018 11:31 am
Forum: VHF MARINE RADIO
Topic: New DSC Recommendations
Replies: 17
Views: 3210

Re: New DSC Recommendations

SVGrendel--hello, and welcome to the forum. I noticed that Glen's website domains have apparently lapsed and been acquired by someone more interested in redirecting traffic to an on-line merchandise shopping website than to information about GMDSS topics. This is unfortunate. Having been operating t...
by jimh
Wed Dec 12, 2018 11:15 am
Forum: GLOBAL NAVIGATION SATELLITE SYSTEMS
Topic: Congress Authorizes Terrestrial Back-up for GPS
Replies: 1
Views: 485

Congress Authorizes Terrestrial Back-up for GPS

A release from the Whitehouse says: On Tuesday, December 4, 2018, the President signed into law: S. 140, the “Frank LoBiondo Coast Guard Authorization Act of 2018,” which authorizes appropriations for the United States Coast Guard and the Federal Maritime Commission through Fiscal Year 2019; reautho...
by jimh
Wed Dec 12, 2018 8:54 am
Forum: GLOBAL NAVIGATION SATELLITE SYSTEMS
Topic: GPS Week Rollover Is Coming in April 2019
Replies: 4
Views: 401

Re: GPS Week Rollover Is Coming in April 2019

Another NMEA-0183 sentence that sends the date is RMC. The format for RMC is: $GPRMC,hhmmss.ss,A,llll.ll,a,yyyyy.yy,a,x.x,x.x,xxxx,x.x,a*hh ⋅  Time (UTC) ⋅  Status, V = Navigation receiver warning; A=Valid ⋅  Latitude ⋅  N or S ⋅  Longitude &...
by jimh
Wed Dec 12, 2018 8:33 am
Forum: The GAM
Topic: 1970 13-footer Bow Hatch Cover
Replies: 4
Views: 335

Re: 1970 13-footer Bow Hatch Cover

ASIDE: for advice on how to include images please see the INTRODUCTION forum and the article that describes how to post images: Adding Image to Post http://continuouswave.com/forum/viewtopic.php?f=1&t=2569 Please use the PREVIEW function to check the composition and appearance of your post.
by jimh
Wed Dec 12, 2018 8:29 am
Forum: The GAM
Topic: 1970 13-footer Bow Hatch Cover
Replies: 4
Views: 335

Re: 1970 13-footer Bow Hatch Cover

For advice on recommended vendors for replacement parts, see the article in the REFERENCE section: Original Equipment Manufacturers and Recommended Vendors http://continuouswave.com/whaler/reference/OEM.html#wood I suggest attempting to refinish the hatch you have now before investing in a replaceme...
by jimh
Wed Dec 12, 2018 8:11 am
Forum: GLOBAL NAVIGATION SATELLITE SYSTEMS
Topic: GPS Week Rollover Is Coming in April 2019
Replies: 4
Views: 401

Re: GPS Week Rollover Is Coming in April 2019

I became more curious about the GPS receiver in my HDS-8 (first generation), and I investigated the NMEA-0183 output data it was sending. At first I looked at the common GPS position sentences like GGA or GLL, but then I noted those sentences do send the date. A sentence available from the HDS-8 tha...
by jimh
Tue Dec 11, 2018 2:27 pm
Forum: VHF MARINE RADIO
Topic: NMEA-0183 Data for DSC Radio
Replies: 1
Views: 469

Re: NMEA-0183 Data for DSC Radio

Another NMEA-0183 sentence that could be used is GLL. This is a very simple sentence. GLL Geographic Position – Latitude/Longitude The GLL sentence will contain the following data: ⋅ Latitude ⋅ N or S (North or South) ⋅ Longitude ⋅ E or W (East or West) ⋅...
by jimh
Tue Dec 11, 2018 1:11 pm
Forum: The GAM
Topic: 205 Conquest and Drains
Replies: 6
Views: 396

Re: 205 Conquest and Drains

You must be a very avid angler if you are out in air temperatures below freezing. My boating ends when the air temperature gets to about 15-degrees-C, and I am a fair weather boater. To create a one-way valve for a scupper, there are some flapper-type valves and also some floating ball valves--what ...
by jimh
Tue Dec 11, 2018 12:06 pm
Forum: VHF MARINE RADIO
Topic: NMEA-0183 Data for DSC Radio
Replies: 1
Views: 469

NMEA-0183 Data for DSC Radio

Most digital selective calling (DSC) VHF Marine Band radios are interfaced using NMEA-0183 to a source of digital data that provides automatic position updates. There are several NMEA-0183 sentences that can be used to send data to the radio. This article discusses the content of those sentences and...
by jimh
Tue Dec 11, 2018 11:22 am
Forum: VHF MARINE RADIO
Topic: Standard-Horizon GX1500 Improving Transmitted Audio
Replies: 0
Views: 434

Standard-Horizon GX1500 Improving Transmitted Audio

Author's note: this article is a revised and updated version of a similar article that was published earlier. After making a modification to the microphone of the ICOM IC-M402 radio, the quality of that transmitter's audio modulation improved dramatically. (See a separate article that describes the...
by jimh
Tue Dec 11, 2018 11:15 am
Forum: VHF MARINE RADIO
Topic: ICOM IC-M402 Radio Rehabilitation
Replies: 0
Views: 433

ICOM IC-M402 Radio Rehabilitation

ICOM IC-M402: Rehabilitating an older VHF Marine Band Radio Author's note: this article is a revision of the original, which appeared in March 2014, with several updates and additions. For over 17-years I have owned an ICOM IC-M402 VHF Marine Band radio. I believe I purchased this radio in c.2001, ...
by jimh
Tue Dec 11, 2018 10:21 am
Forum: The GAM
Topic: 205 Conquest and Drains
Replies: 6
Views: 396

Re: 205 Conquest and Drains

I doubt that the design of the Boston Whaler 205 EASTPORT (later called 205 CONQUEST) was so badly done that the aft portion of the cockpit deck is always wet on every boat under all circumstances and creates a hazard for crew to slip. It is possible to create load and trim situations with any boat ...
by jimh
Mon Dec 10, 2018 11:44 am
Forum: VHF MARINE RADIO
Topic: ICOM IC-M506 Radio
Replies: 4
Views: 405

Re: ICOM IC-M506 Radio

Here is a list of firmware updater packages for the ICOM IC-M506 radio, from a secondary source. Note the most recent update is from November 7, 2018, just a month ago: Format: Firmware Version Associated Software Update Summary Introduction Date Main v1.101 UX-232 v1.007, v1.3 Fixed loss of GNSS po...
by jimh
Mon Dec 10, 2018 11:39 am
Forum: MARKETPLACE
Topic: Appraisal of 1980 SPORT 15
Replies: 3
Views: 343

Re: Appraisal of 1980 SPORT 15

From the description "no bottom paint" I would hope the boat was not kept in the water for more than a few days at a time. From the description of "no cover" and "no bimini" I would infer this boat has seen a lot of sun and weather, unless stored indoors all the time. T...
by jimh
Mon Dec 10, 2018 9:41 am
Forum: VHF MARINE RADIO
Topic: ICOM IC-M506 Radio
Replies: 4
Views: 405

Re: ICOM IC-M506 Radio

Let us review all the hardware and other elements necessary to install updates into an ICOM IC-M506 radio: ⋅ USB cloning cable and driver software ⋅ Cloning cable adaptor ⋅ Host terminal running Windows proper version ⋅ USB port on host ⋅ CD-ROM on h...
by jimh
Mon Dec 10, 2018 9:34 am
Forum: VHF MARINE RADIO
Topic: ICOM IC-M506 Radio
Replies: 4
Views: 405

Re: ICOM IC-M506 Radio

Regarding the communication software needed to perform firmware updates to an ICOM IC-M506 radio, the ICOM CS-M506 software is needed. Here is a possible source for the software: ICOM CS-506 Cloning Software : $87 https://www.ameradio.com/product/261195/description.html The software is provided on a...
by jimh
Mon Dec 10, 2018 9:16 am
Forum: VHF MARINE RADIO
Topic: ICOM IC-M506 Radio
Replies: 4
Views: 405

Re: ICOM IC-M506 Radio

Regarding the cables needed to perform a firmware update to an ICOM IC-M506 radio, here are some possible sources for them: Icom OPC-478UC USB Cable : $51 https://www.ameradio.com/product/8591/description.html More information available from: https://www.ameradio.com/doc/Icom_cloning_and_data_cables...
by jimh
Mon Dec 10, 2018 8:30 am
Forum: REPAIRS and MODIFICATIONS
Topic: Rage Jet Drive Cooling Modification
Replies: 5
Views: 550

Re: Rage Jet Drive Cooling Modification

...A pressure sensor and alarm would seem to me to be better... The water pressure in the engine cooling system will vary over a wide range of pressure with engine speed. How will you configure the alarm system to detect a problem with water pressure when the desired water pressure is so dependent ...
by jimh
Sun Dec 09, 2018 1:34 pm
Forum: The GAM
Topic: November Gales
Replies: 21
Views: 1253

Re: November Gales

The Tacoma Narrows Bridge collapse was really quite amazing: not that it collapsed, but that there was someone there with a motion picture camera to record it as it happened. That was great timing. Today there would be 500 people with smartphones with cameras shooting something like a suspension bri...
by jimh
Sat Dec 08, 2018 11:29 am
Forum: The GAM
Topic: Long Term Engine Storage
Replies: 5
Views: 455

Re: Long Term Engine Storage

Any comments would be greatly appreciated. Here are my comments: A c.1988 Mercury 90-HP engine should be a three-cylinder, very simple, two-stroke-power-cycle engine. There is nothing fancy or unusual about this engine. It is one of the better Mercury engines of that era. The c.1988 epoch should me...
by jimh
Fri Dec 07, 2018 3:49 pm
Forum: REPAIRS and MODIFICATIONS
Topic: 2006 Ventura: Replacing Hydraulic Steering Hoses
Replies: 16
Views: 662

Re: 2006 Ventura: Replacing Hydraulic Steering Hoses

Here is an older discussion that talks about VERADO power steering: Verado Power Steering http://continuouswave.com/ubb/Forum3/HTML/015989.html You may find this archived information useful. Note that the thread includes an abbreviated version of the the system bleeding instructions. And it also not...
by jimh
Fri Dec 07, 2018 3:36 pm
Forum: REPAIRS and MODIFICATIONS
Topic: 2006 Ventura: Replacing Hydraulic Steering Hoses
Replies: 16
Views: 662

Re: 2006 Ventura: Replacing Hydraulic Steering Hoses

I don't recall if these extension hoses on a VERADO FOURSTROKE follow the engine as it is turned, or if they stay in place. If the hoses are stationary, it should not be too difficult to give them protection against ultraviolet light with a covering. If the hoses have to swing back and forth with th...
by jimh
Fri Dec 07, 2018 3:18 pm
Forum: GLOBAL NAVIGATION SATELLITE SYSTEMS
Topic: GPS Week Rollover Is Coming in April 2019
Replies: 4
Views: 401

Re: GPS Week Rollover Is Coming in April 2019

To give some perspective, the GPS system keeps time and date in its own system. GPS does not use UTC for time, and, from what I understand, that's because UTC often adds leap seconds about every four years to adjust for the earth rotation speed. Similarly with date, GPS does not use a conventional c...
by jimh
Fri Dec 07, 2018 2:04 pm
Forum: The GAM
Topic: November Gales
Replies: 21
Views: 1253

Re: November Gales

Many are familiar with the famous Tacoma Narrows Bridge collapse, but perhaps very few have made the connection to Great Lakes Gales. The bridge collapse occurred on November 7, 1940 from a storm with winds of about 40-knots. That same low-pressure system then continued across the United States, fir...
by jimh
Fri Dec 07, 2018 9:53 am
Forum: VHF MARINE RADIO
Topic: ICOM IC-M506 Radio
Replies: 4
Views: 405

ICOM IC-M506 Radio

If you are considering buying an ICOM IC-M506 VHF Marine Band DSC radio, you should be well informed before selecting the particular model. This radio is available in five different configurations, and when ordering the radio you should be careful to select the particular version you want for your i...
by jimh
Fri Dec 07, 2018 8:42 am
Forum: REPAIRS and MODIFICATIONS
Topic: 2006 Ventura: Replacing Hydraulic Steering Hoses
Replies: 16
Views: 662

Re: 2006 Ventura: Replacing Hydraulic Steering Hoses

Good advice to "steer clear" of certain hydraulic steering fluid substitutions--and a nice pun, too.
by jimh
Thu Dec 06, 2018 7:03 pm
Forum: REPAIRS and MODIFICATIONS
Topic: 2006 Ventura: Replacing Hydraulic Steering Hoses
Replies: 16
Views: 662

Re: 2006 Ventura: Replacing Hydraulic Steering Hoses

Dutch--Can you give us the price for the OEM hose and the price for your local supplier to make a better one?
by jimh
Thu Dec 06, 2018 10:16 am
Forum: GLOBAL NAVIGATION SATELLITE SYSTEMS
Topic: GPS Week Rollover Is Coming in April 2019
Replies: 4
Views: 401

GPS Week Rollover Is Coming in April 2019

In the U.S. Air Force NAVSTAR Global Positioning System (also known widely as "GPS"), the underlying basis for position finding is knowledge of the precise time a signal is transmitted from a satellite. In the navigation message sent by a GPS satellite, the exact time a signal is sent is e...
by jimh
Thu Dec 06, 2018 8:35 am
Forum: REPAIRS and MODIFICATIONS
Topic: 2006 Ventura: Replacing Hydraulic Steering Hoses
Replies: 16
Views: 662

Re: 2006 Ventura: Replacing Hydraulic Steering Hoses

Re the hydraulic fluid: typically the manufacturer of the steering system will require use of a specific type of hydraulic fluid. See the manufacturer's specifications for advice.
by jimh
Thu Dec 06, 2018 8:32 am
Forum: REPAIRS and MODIFICATIONS
Topic: 2006 Ventura: Replacing Hydraulic Steering Hoses
Replies: 16
Views: 662

Re: 2006 Ventura: Replacing Hydraulic Steering Hoses

Re replacement hoses: I suggest you inquire about an OEM replacement hose and its cost. The notion that the existing hose could be exactly duplicated by a local service shop is speculative. The fittings and hose used may not be on hand at every service shop. The notion that the cost of a custom-made...