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#1
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![]() Where have other folk with a mast mounted radar scanner run the interconnect cable? ie cable bewteen scanner & display. cheers bruce |
#2
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![]() "bruce" wrote in message news ![]() Where have other folk with a mast mounted radar scanner run the interconnect cable? ie cable bewteen scanner & display. Ideally you should run the cable inside the mast and again, ideally you should install it while the mast is out of the boat. This would allow you to get secure it and keep it clear of the internal halyards. (seperate topic). The biggest problem is the connectors on the end of the cable. In my experience, (three Furunos) the antenna end connector are the smallest and if these connector shells are still to big to pass through access holes/wireways, then the shells can be removed. (for the Furuno, no special tools are requird (seperate topic, again). Once the shell is removed the contacts on the ends of the wires should be protected, especially the small coax cable. The above being stated, you would of course, start from the radar display location and work you way to the mast and then just follow the route of the mast electrical wiring. I always feel that a mast junction box for the radar cable should be part of the standard installation but I have never seen one yet. I guess if you were going to pull the mast in the future, you could disconnect at the radar scanner and pull in a chase line while pulling the radar cable out. The connector shells at the radar would have to be done while aloft but, again, I found no need for special tools. Just a list of which wire goes in which connector shell and in what location. My Furuno manual provided all that detail. (All the above was learned the hard way and only after I had damaged that little coax signal wire. Your welcome to benefit from my experience.) Steve s/v Good Intentions |
#3
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Which brings up an interesting question. Is it permissable to install a
plug and receptical at the mast partners so that you don't have to unwire everything back to the display when you pull the mast? Steve wrote: Ideally you should run the cable inside the mast and again, ideally you should install it while the mast is out of the boat. This would allow you to get secure it and keep it clear of the internal halyards. (seperate topic). The biggest problem is the connectors on the end of the cable. In my experience, (three Furunos) the antenna end connector are the smallest and if these connector shells are still to big to pass through access holes/wireways, then the shells can be removed. (for the Furuno, no special tools are requird (seperate topic, again). Once the shell is removed the contacts on the ends of the wires should be protected, especially the small coax cable. The above being stated, you would of course, start from the radar display location and work you way to the mast and then just follow the route of the mast electrical wiring. I always feel that a mast junction box for the radar cable should be part of the standard installation but I have never seen one yet. I guess if you were going to pull the mast in the future, you could disconnect at the radar scanner and pull in a chase line while pulling the radar cable out. The connector shells at the radar would have to be done while aloft but, again, I found no need for special tools. Just a list of which wire goes in which connector shell and in what location. My Furuno manual provided all that detail. (All the above was learned the hard way and only after I had damaged that little coax signal wire. Your welcome to benefit from my experience.) Steve s/v Good Intentions -- Glenn Ashmore I'm building a 45' cutter in strip/composite. Watch my progress (or lack there of) at: http://www.rutuonline.com Shameless Commercial Division: http://www.spade-anchor-us.com |
#4
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![]() "Glenn Ashmore" wrote in message news:yvdfc.1060$uF3.60@lakeread04... Which brings up an interesting question. Is it permissable to install a plug and receptical at the mast partners so that you don't have to unwire everything back to the display when you pull the mast? I can't see anything wrong with this or a junction box, IMHO and limited experience. In my Furuno cables there is only one small coax cable and that problem would have to be dealt with, perhaps with just weather proof connector. The remaining 10 are ordinary color coded stranded conductors. Of course if supplied an inline connector, they would use something propietory and charge 10% the price of the radar for it. (Still bitter about $35 for a NMEA data connector/pigtail).. Steve s/v Good Intentions |
#5
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Interesting question. Raymarine had at one time strictly recommended
against breaking their radar cable and adding an in-line connector anyway, anytime. I did it with a cheap ten pin connector on an SL-72, and had no problem for several years. I then took that radar from one boat to another boat, and after reading the FAQ's on their web site, which grudgingly admitted that a terminal board or connector was possible, substituted a terminal board for the old connector. I was unable to get the radar to work until I replaced the terminal board with another connector. I sense that these connections are indeed sensitive. I'm not sure which lines are sensitive, but suspect that it's the coax leads. Max Lynn "Glenn Ashmore" wrote in message news:yvdfc.1060$uF3.60@lakeread04... Which brings up an interesting question. Is it permissable to install a plug and receptical at the mast partners so that you don't have to unwire everything back to the display when you pull the mast? Steve wrote: Ideally you should run the cable inside the mast and again, ideally you should install it while the mast is out of the boat. This would allow you to get secure it and keep it clear of the internal halyards. (seperate topic). The biggest problem is the connectors on the end of the cable. In my experience, (three Furunos) the antenna end connector are the smallest and if these connector shells are still to big to pass through access holes/wireways, then the shells can be removed. (for the Furuno, no special tools are requird (seperate topic, again). Once the shell is removed the contacts on the ends of the wires should be protected, especially the small coax cable. The above being stated, you would of course, start from the radar display location and work you way to the mast and then just follow the route of the mast electrical wiring. I always feel that a mast junction box for the radar cable should be part of the standard installation but I have never seen one yet. I guess if you were going to pull the mast in the future, you could disconnect at the radar scanner and pull in a chase line while pulling the radar cable out. The connector shells at the radar would have to be done while aloft but, again, I found no need for special tools. Just a list of which wire goes in which connector shell and in what location. My Furuno manual provided all that detail. (All the above was learned the hard way and only after I had damaged that little coax signal wire. Your welcome to benefit from my experience.) Steve s/v Good Intentions -- Glenn Ashmore I'm building a 45' cutter in strip/composite. Watch my progress (or lack there of) at: http://www.rutuonline.com Shameless Commercial Division: http://www.spade-anchor-us.com |
#6
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I installed a Raytheon on my boat and the dome was on one of the late,
lamented Waltz poles on the back stay. As I remove the mast every season, I had to have an easy way to disconnect the dome. I put a connection box in the lazzerettte and split all (10-12) wires and shields and fed them into the junction box. It looks like a mess, but it has not effected the performance of the unit -- Dennis Gibbons dkgibbons at optonline dot net "maxlynn" wrote in message news:QMhfc.8563$dZ1.6836@fed1read04... Interesting question. Raymarine had at one time strictly recommended against breaking their radar cable and adding an in-line connector anyway, anytime. I did it with a cheap ten pin connector on an SL-72, and had no problem for several years. I then took that radar from one boat to another boat, and after reading the FAQ's on their web site, which grudgingly admitted that a terminal board or connector was possible, substituted a terminal board for the old connector. I was unable to get the radar to work until I replaced the terminal board with another connector. I sense that these connections are indeed sensitive. I'm not sure which lines are sensitive, but suspect that it's the coax leads. Max Lynn "Glenn Ashmore" wrote in message news:yvdfc.1060$uF3.60@lakeread04... Which brings up an interesting question. Is it permissable to install a plug and receptical at the mast partners so that you don't have to unwire everything back to the display when you pull the mast? Steve wrote: Ideally you should run the cable inside the mast and again, ideally you should install it while the mast is out of the boat. This would allow you to get secure it and keep it clear of the internal halyards. (seperate topic). The biggest problem is the connectors on the end of the cable. In my experience, (three Furunos) the antenna end connector are the smallest and if these connector shells are still to big to pass through access holes/wireways, then the shells can be removed. (for the Furuno, no special tools are requird (seperate topic, again). Once the shell is removed the contacts on the ends of the wires should be protected, especially the small coax cable. The above being stated, you would of course, start from the radar display location and work you way to the mast and then just follow the route of the mast electrical wiring. I always feel that a mast junction box for the radar cable should be part of the standard installation but I have never seen one yet. I guess if you were going to pull the mast in the future, you could disconnect at the radar scanner and pull in a chase line while pulling the radar cable out. The connector shells at the radar would have to be done while aloft but, again, I found no need for special tools. Just a list of which wire goes in which connector shell and in what location. My Furuno manual provided all that detail. (All the above was learned the hard way and only after I had damaged that little coax signal wire. Your welcome to benefit from my experience.) Steve s/v Good Intentions -- Glenn Ashmore I'm building a 45' cutter in strip/composite. Watch my progress (or lack there of) at: http://www.rutuonline.com Shameless Commercial Division: http://www.spade-anchor-us.com |
#7
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Shouldn't be anything wrong with putting an interconnection in the radar
multicore as long as it stays clean and dry, but remember that the co-ax is an impedance matched RF cable and so a suitable RF connector should always be used for this core and its braided screen (BNC, SMA, N-Type etc) these can be bought from any electronics caltalogue or shop. |
#8
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Of course, all this Raymarine propaganda is moot when you consider the
cheap-assed little plastic connector you have to shove through the plastic stuffing tube and plug into the chinzy board connector inside the radome.....If signals will pass through a chinzy plastic 10-cent connector, a good terminal block, with RING terminals thank you, not spade lugs, is like comparing a C-class Benz to the Yugo connector in the dome...(c; Wonder what ever happened to those nice green mil-spec bulkhead connectors that were SEALED against the seawater, dammit....(d^ ![]() Larry W4CSC "maxlynn" wrote in news:QMhfc.8563$dZ1.6836@fed1read04: Interesting question. Raymarine had at one time strictly recommended against breaking their radar cable and adding an in-line connector anyway, anytime. I did it with a cheap ten pin connector on an SL-72, and had no problem for several years. I then took that radar from one boat to another boat, and after reading the FAQ's on their web site, which grudgingly admitted that a terminal board or connector was possible, substituted a terminal board for the old connector. I was unable to get the radar to work until I replaced the terminal board with another connector. I sense that these connections are indeed sensitive. I'm not sure which lines are sensitive, but suspect that it's the coax leads. Max Lynn |
#9
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"jonathan rees" wrote in
: Shouldn't be anything wrong with putting an interconnection in the radar multicore as long as it stays clean and dry, but remember that the co-ax is an impedance matched RF cable and so a suitable RF connector should always be used for this core and its braided screen (BNC, SMA, N-Type etc) these can be bought from any electronics caltalogue or shop. The coax cable is for DATA, not RF. The whole receiver is up in the dome, these days, and just ships video data to the "display units" below..... Larry Yeah, I remember when IF came down the mast in the coax, myself....(c; Old farts.... |
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