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Search took 0.00 seconds. Search: Posts Made By: Salty John
Forum: RIBs & ribbing 28 February 2019, 15:56
Replies: 10
Views: 1,408
Posted By Salty John
It's not necessarily the cheaper LEDs that cause...

It's not necessarily the cheaper LEDs that cause the problem. The interference comes from the buck regulator that controls the voltage in the LED. Some versions oscillate at a frequency that messes...
Forum: Other stuff 25 September 2015, 12:05
Replies: 15
Views: 2,942
Posted By Salty John
Insertion loss for a connector (PL259, PL258 etc)...

Insertion loss for a connector (PL259, PL258 etc) at 150 Mhz is certainly less than 0.1dB, some tests show as low as 0.01dB, so not a real concern.
Connecting a HH to an external antenna is of...
Forum: Electrics and electronics 21 September 2015, 09:39
Replies: 33
Views: 8,017
Posted By Salty John
Height above sea level trumps other issues for...

Height above sea level trumps other issues for range. Range in nm is 1.4 x sq.rt. of your height above sea level in ft plus 1.4 x sq.rt. of his height above sea level in ft.
(I'm sure there's an...
Forum: Electrics and electronics 29 January 2015, 16:02
Replies: 14
Views: 4,657
Posted By Salty John
Get yourself a 1m whip antenna and mount it on a...

Get yourself a 1m whip antenna and mount it on a pole, 1.5m or so is fine. This gives some degree of elevation, which translates to range, and a nice fat radiation pattern that keeps some portion of...
Forum: Electrics and electronics 18 January 2015, 14:19
Replies: 31
Views: 9,309
Posted By Salty John
If your vhf antenna has a PL259 connector at the...

If your vhf antenna has a PL259 connector at the base, as with Metz and some others, then you just unscrew that. If you want to make a joint in the cable you can use a barrel connector and two PL259s...
Forum: Electrics and electronics 18 January 2015, 08:54
Replies: 31
Views: 9,309
Posted By Salty John
Just a word about Marine Megastore. This is one...

Just a word about Marine Megastore. This is one of dozens of thhreads about them at the YBW forum. Buyer beware. aka Marine Megastore...
Forum: Engines & props 17 November 2014, 13:15
Replies: 2
Views: 1,500
Posted By Salty John
Biggest production outboard

Being more sailing oriented I'm not well informed about the bigger outboard motors so it was with some incredulity that I discovered there is a production outboard available of 557 HP!

I learned...
Forum: Electrics and electronics 18 September 2014, 15:41
Replies: 18
Views: 2,438
Posted By Salty John
Mount a whip antenna on an extension pole fixed...

Mount a whip antenna on an extension pole fixed to the transom. The radiating element will be above the motor, you'll benefit from extra height above sea level and the broad radiation pattern of a...
Forum: Electrics and electronics 12 August 2014, 08:53
Replies: 19
Views: 2,755
Posted By Salty John
I've tried to answer this twice but it won't post...

I've tried to answer this twice but it won't post even though I'm logged in.
Forum: Electrics and electronics 22 April 2014, 12:23
Replies: 17
Views: 2,121
Posted By Salty John
Be careful if you are fitting an LED light near...

Be careful if you are fitting an LED light near your vhf/AIS antenna, you could get interference.
Some LED navigation lights, and some replacement LED clusters, use a particular type of buck...
Forum: Electrics and electronics 16 October 2013, 10:35
Replies: 1
Views: 1,395
Posted By Salty John
VHF antenna information

Here's an article on vhf antennas and their installation:
https://tinyurl.com/VHF-antenna-article

I may have posted an earlier version of this some time ago.
Forum: RIBs & ribbing 15 October 2013, 12:42
Replies: 29
Views: 4,227
Posted By Salty John
No cost bailer

If you're a bit bored in the off season you can make yourself a new bailer:)
Salty John : The Blog: Dinghy bailers (https://saltyjohn.blogspot.co.uk/2012/05/dinghy-bailers.html)
Forum: RIBs & ribbing 14 October 2013, 08:33
Replies: 8
Views: 1,467
Posted By Salty John
Drowning, a deadly calmness

Here's my occasional warning about drowning:
Salty John : The Blog: Drowning - a deadly calmness (https://saltyjohn.blogspot.co.uk/2011/04/drowning-deadly-calmness.html)
Forum: RIBs & ribbing 05 September 2013, 16:55
Replies: 9
Views: 7,309
Posted By Salty John
I'll bet a lot of people think of RIBs as a...

I'll bet a lot of people think of RIBs as a relatively new innovation, but they've been around for at least 50 years!

Seaworthiness, stability and, of course, coolness seem to be the main reasons...
Forum: RIBs & ribbing 05 September 2013, 09:31
Replies: 9
Views: 7,309
Posted By Salty John
Thanks, I guess I should have searched. I tend to...

Thanks, I guess I should have searched. I tend to think of this as a forum for discussion rather than a database.
Forum: RIBs & ribbing 05 September 2013, 09:16
Replies: 9
Views: 7,309
Posted By Salty John
Ah, the cool factor. Mustn't forget that.

Ah, the cool factor. Mustn't forget that.
Forum: RIBs & ribbing 05 September 2013, 08:05
Replies: 9
Views: 7,309
Posted By Salty John
Advantages of a RIB

I've been around boats most of my life - sail and power - but my experience with inflatables is confined to yacht tenders.
So, I thought I'd ask the people who know: What are the perceived...
Forum: Electrics and electronics 28 August 2013, 10:45
Replies: 3
Views: 1,425
Posted By Salty John
Here's a more condensed version! ...

Here's a more condensed version!

https://www.saltyjohn.co.uk/resources/Marine%20VHF%20Antennas%20aerials%20and%20their%20installation.pdf
Forum: Electrics and electronics 12 August 2013, 16:35
Replies: 26
Views: 5,938
Posted By Salty John
To go back to the OP's question, the best antenna...

To go back to the OP's question, the best antenna configuration for a RIB is, in my opinion, a 3dbi whip antenna on a pole. This gives the right combination of a broad radiation pattern and height....
Forum: Inflatable boats - SIBs and folding RIBs 28 January 2013, 08:56
Replies: 12
Views: 7,498
Posted By Salty John
Tie down straps? Salty John: The Clipper™...

Tie down straps?
Salty John: The Clipper™ Tie-down strap Battery-strap and other fine boat and yacht chandlery products.. (https://www.saltyjohn.co.uk/tie_down_strap.htm)
Forum: RIBs & ribbing 18 January 2013, 09:59
Replies: 16
Views: 3,483
Posted By Salty John
If you anchor in mud a fluke type anchor such as...

If you anchor in mud a fluke type anchor such as a Danforth or Fortress will suit you. For anything else a plough such as the Bruce, CQR or Delta is a better choice. As others have said, at least 5m...
Forum: Electrics and electronics 26 October 2012, 10:32
Replies: 8
Views: 2,936
Posted By Salty John
Hi Copinsay, My, you live in a windy spot! ...

Hi Copinsay,

My, you live in a windy spot!

The Metz is designed for masthead mounting on yachts where it has to cope with violent movement and strong winds. Having said that, we did have a...
Forum: Electrics and electronics 25 October 2012, 15:56
Replies: 8
Views: 2,936
Posted By Salty John
The Metz will do that job. Salty John: Metz...

The Metz will do that job.

Salty John: Metz Manta Marine VHF Antenna plus Metz AIS antenna and other fine boat and yacht chandlery products....
Forum: Electrics and electronics 13 September 2012, 15:16
Replies: 18
Views: 3,420
Posted By Salty John
As a result of BogMonster's experience Metz now...

As a result of BogMonster's experience Metz now uses a beefier ferrule under the compression nut. We have had one whip loss experience since but on an older antenna; we didn't really have many whip...
Forum: Electrics and electronics 30 June 2012, 09:56
Replies: 47
Views: 7,046
Posted By Salty John
It depends on how the LED is regulated, as said...

It depends on how the LED is regulated, as said previously. But cost isn't an indicator of whether or not you'll get radio interference. Some quite expensive LEDs have buck regulators that operate at...
Showing results 1 to 25 of 54
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