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Lucaya, Grand Bahama Island to Saint Simons Island GA April 18-19 PRF and RMS power
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Lucaya, Grand Bahama Island to Saint Simons Island GA April 18-19
On Wed, 3 Jun 2009 16:00:34 -0400, "Wilbur Hubbard"
wrote: wrote in message .. . On Tue, 2 Jun 2009 21:22:28 -0400, "Wilbur Hubbard" wrote: "Wayne.B" wrote in message ... On Tue, 2 Jun 2009 20:25:27 -0400, "Wilbur Hubbard" wrote: Real sailors won't abide radar. Bull Not bull! Fact! If you run radar you are motoring because the damned things draw so much power. Since you're motoring you are no sailor. False. My RADAR draws slightly over 2.1 amps MAX. Over 10 hours of normal use, it draws an average of about 1/4 to 1/2 amp, or 3 - 5 amp hours in a 10 hour day. It is really even be less than that. I have a dedicated AGM battery for just the RADAR and a small 20 watt solar panel has no trouble keeping it fully charged regardless of how much I use the RADAR. LIAR! Volts X Amps = Watts. So if your unit draws 2 amps that means your unit has a puny 24 or so watt output provided it it 100 percent efficient which it is NOT. Hell, a VHF radio outputs at 25 watts and it has no moving parts. That means your pitiful 2.1 amp radar is good for a range of maybe a 1/10 mile. Waste of time and space, dude! Freaking TOY! Here's a link to a compact yacht radar: http://www.busse-yachtshop.de/dae_fu...adar-1623.html Note the output is 2.2 KILOwatts. Using the above formula, V times amps = watts, you get approximately 14 amps. You're even more clueless than poor Skippy! Wilbur Hubbard Interesting that the example you picked is the EXACT model I have. It draws what I said it draws. Furuno agrees with me, if you look in the manual. It has a range of 16 miles. |
Lucaya, Grand Bahama Island to Saint Simons Island GA April 18-19 PRF and RMS power
On Wed, 3 Jun 2009 17:48:22 -0400, "Wilbur Hubbard"
wrote: wrote in message ... Wilbur, Stick to stuff you understand. 1. The VHF is on at a100% duty cycle so it's output is 25 watts as you stated. 2. The RADAR has a pulsed output. The shorter the pulse the better the resolution of the radar. I remember one 25KW radar I was repairing only used 5 watts for the magnetron. Power consumed depends on the pulse width and the pulse repetition frequency. That's odd, I could have sworn the link I posted rated the yacht radar described at 2.2 kilowatt output. Wilbur Hubbard What a complete dope. |
Lucaya, Grand Bahama Island to Saint Simons Island GA April 18-19 PRF and RMS power
On Wed, 3 Jun 2009 18:16:30 -0400, "Wilbur Hubbard"
wrote: wrote in message ... It is a 2.2 KW pulse for say one microsecond 200 times a second and off the rest of the time. Do the math, 200 microseconds on the rest of the time it is off. You can see this is not going to be a very high average power. I see your point. If it only runs at that kilowatt output for 1/10 of a second then for the entire second it will have a draw 1/10 for the entire second. When talking amps it is better to talk amp/hours. But even so, 2.2 kilowatts - one tenth of that is still 22 watts only for generating the signal. You still have gears and motor turning that rotor and you still have the receiver power draw, the cpu power draw and the screen power draw. That idiot who claimed his radar only draws 2.1 amps continuously is lying. You don't get something for nothing. Wilbur Hubbard I got that figure out of the manual for my Furuno 1623 RADAR. And I didn't say my RADAR draws that much continuously. It draws considerably less than that most of the time. |
Lucaya, Grand Bahama Island to Saint Simons Island GA April 18-19 PRF and RMS power
On Wed, 3 Jun 2009 17:48:22 -0400, "Wilbur Hubbard"
wrote: wrote in message ... Wilbur, Stick to stuff you understand. 1. The VHF is on at a100% duty cycle so it's output is 25 watts as you stated. 2. The RADAR has a pulsed output. The shorter the pulse the better the resolution of the radar. I remember one 25KW radar I was repairing only used 5 watts for the magnetron. Power consumed depends on the pulse width and the pulse repetition frequency. That's odd, I could have sworn the link I posted rated the yacht radar described at 2.2 kilowatt output. Wilbur Hubbard You should have read the whole page before trying to use it as a reference, dumbass. Further down it says: Power consumption Max. 36 W, 8 W in standby mode To get it to draw the max, you would need to crank up the gain all the way while in 16 mile range. The only time you might do that for a very brief period is when looking for rain off in the distance. Realistically, you will almost never draw more than 2 amps, and most of the time less than that. |
Lucaya, Grand Bahama Island to Saint Simons Island GA April 18-19
wrote in message
... On Wed, 3 Jun 2009 16:00:34 -0400, "Wilbur Hubbard" wrote: wrote in message . .. On Tue, 2 Jun 2009 21:22:28 -0400, "Wilbur Hubbard" wrote: "Wayne.B" wrote in message m... On Tue, 2 Jun 2009 20:25:27 -0400, "Wilbur Hubbard" wrote: Real sailors won't abide radar. Bull Not bull! Fact! If you run radar you are motoring because the damned things draw so much power. Since you're motoring you are no sailor. False. My RADAR draws slightly over 2.1 amps MAX. Over 10 hours of normal use, it draws an average of about 1/4 to 1/2 amp, or 3 - 5 amp hours in a 10 hour day. It is really even be less than that. I have a dedicated AGM battery for just the RADAR and a small 20 watt solar panel has no trouble keeping it fully charged regardless of how much I use the RADAR. LIAR! Volts X Amps = Watts. So if your unit draws 2 amps that means your unit has a puny 24 or so watt output provided it it 100 percent efficient which it is NOT. Hell, a VHF radio outputs at 25 watts and it has no moving parts. That means your pitiful 2.1 amp radar is good for a range of maybe a 1/10 mile. Waste of time and space, dude! Freaking TOY! Here's a link to a compact yacht radar: http://www.busse-yachtshop.de/dae_fu...adar-1623.html Note the output is 2.2 KILOwatts. Using the above formula, V times amps = watts, you get approximately 14 amps. You're even more clueless than poor Skippy! Wilbur Hubbard Interesting that the example you picked is the EXACT model I have. I'm just very intelligent and know just about everything including most of your personal life. It draws what I said it draws. Furuno agrees with me, if you look in the manual. It has a range of 16 miles. It draws more than 2.1 amps for the entire system. Don't you know the spec is only for the transceiver? It does not include the antenna and the motor that spins it. Get a clue. Your claim is way lame, dude. It's like me claiming my Adler Barbour draws only .01 amp on standby. Too bad on standby it doesn't cool squat. Wilbur Hubbard |
Lucaya, Grand Bahama Island to Saint Simons Island GA April 18-19
On Thu, 4 Jun 2009 18:48:18 -0400, "Wilbur Hubbard"
wrote: wrote in message .. . On Wed, 3 Jun 2009 16:00:34 -0400, "Wilbur Hubbard" wrote: wrote in message ... On Tue, 2 Jun 2009 21:22:28 -0400, "Wilbur Hubbard" wrote: "Wayne.B" wrote in message om... On Tue, 2 Jun 2009 20:25:27 -0400, "Wilbur Hubbard" wrote: Real sailors won't abide radar. Bull Not bull! Fact! If you run radar you are motoring because the damned things draw so much power. Since you're motoring you are no sailor. False. My RADAR draws slightly over 2.1 amps MAX. Over 10 hours of normal use, it draws an average of about 1/4 to 1/2 amp, or 3 - 5 amp hours in a 10 hour day. It is really even be less than that. I have a dedicated AGM battery for just the RADAR and a small 20 watt solar panel has no trouble keeping it fully charged regardless of how much I use the RADAR. LIAR! Volts X Amps = Watts. So if your unit draws 2 amps that means your unit has a puny 24 or so watt output provided it it 100 percent efficient which it is NOT. Hell, a VHF radio outputs at 25 watts and it has no moving parts. That means your pitiful 2.1 amp radar is good for a range of maybe a 1/10 mile. Waste of time and space, dude! Freaking TOY! Here's a link to a compact yacht radar: http://www.busse-yachtshop.de/dae_fu...adar-1623.html Note the output is 2.2 KILOwatts. Using the above formula, V times amps = watts, you get approximately 14 amps. You're even more clueless than poor Skippy! Wilbur Hubbard Interesting that the example you picked is the EXACT model I have. I'm just very intelligent and know just about everything including most of your personal life. It draws what I said it draws. Furuno agrees with me, if you look in the manual. It has a range of 16 miles. It draws more than 2.1 amps for the entire system. Don't you know the spec is only for the transceiver? It does not include the antenna and the motor that spins it. Get a clue. Your claim is way lame, dude. It's like me claiming my Adler Barbour draws only .01 amp on standby. Too bad on standby it doesn't cool squat. Wilbur Hubbard The advertised power of a RADAR is normally the peak transmitter power. Radar uses a pulsed transmission, and only transmits its peak advertised power for (usually) under 0.1% of the time. One RADAR I had transmitted an 0.08 uS pulse 2200 times per second. It had a 2.15 amp fuse (12 volt) feeding the whole system including the antenna motor and LCD display. -- Peter Bennett, VE7CEI peterbb4 (at) interchange.ubc.ca GPS and NMEA info: http://vancouver-webpages.com/peter Vancouver Power Squadron: http://vancouver.powersquadron.ca |
Lucaya, Grand Bahama Island to Saint Simons Island GA April 18-19
On Thu, 4 Jun 2009 18:48:18 -0400, "Wilbur Hubbard"
wrote: wrote in message .. . On Wed, 3 Jun 2009 16:00:34 -0400, "Wilbur Hubbard" wrote: wrote in message ... On Tue, 2 Jun 2009 21:22:28 -0400, "Wilbur Hubbard" wrote: "Wayne.B" wrote in message om... On Tue, 2 Jun 2009 20:25:27 -0400, "Wilbur Hubbard" wrote: Real sailors won't abide radar. Bull Not bull! Fact! If you run radar you are motoring because the damned things draw so much power. Since you're motoring you are no sailor. False. My RADAR draws slightly over 2.1 amps MAX. Over 10 hours of normal use, it draws an average of about 1/4 to 1/2 amp, or 3 - 5 amp hours in a 10 hour day. It is really even be less than that. I have a dedicated AGM battery for just the RADAR and a small 20 watt solar panel has no trouble keeping it fully charged regardless of how much I use the RADAR. LIAR! Volts X Amps = Watts. So if your unit draws 2 amps that means your unit has a puny 24 or so watt output provided it it 100 percent efficient which it is NOT. Hell, a VHF radio outputs at 25 watts and it has no moving parts. That means your pitiful 2.1 amp radar is good for a range of maybe a 1/10 mile. Waste of time and space, dude! Freaking TOY! Here's a link to a compact yacht radar: http://www.busse-yachtshop.de/dae_fu...adar-1623.html Note the output is 2.2 KILOwatts. Using the above formula, V times amps = watts, you get approximately 14 amps. You're even more clueless than poor Skippy! Wilbur Hubbard Interesting that the example you picked is the EXACT model I have. I'm just very intelligent and know just about everything including most of your personal life. It draws what I said it draws. Furuno agrees with me, if you look in the manual. It has a range of 16 miles. It draws more than 2.1 amps for the entire system. Don't you know the spec is only for the transceiver? It does not include the antenna and the motor that spins it. Get a clue. Your claim is way lame, dude. It's like me claiming my Adler Barbour draws only .01 amp on standby. Too bad on standby it doesn't cool squat. Wilbur Hubbard You are free to remain clueless. That's what everyone here expects of you. You have yet to disappoint them. |
Lucaya, Grand Bahama Island to Saint Simons Island GA April 18-19
On Tue, 02 Jun 2009 23:42:44 -0400, Wayne.B
wrote: Radar does use a fair amout of power. That's a fact but not necessarily an issue on a larger boat with decent battery banks. Modern radars do have power saving modes where they wake up every minute or so, make a few sweeps, activate an alarm if targets are detected, and then go back to sleep. I've sailed thousands of miles at night without radar but I count myself lucky and will never do it again if I have a choice. You can get radar under a grand, and with a power consumption of less than 2 amps. A hundred amp alternator can put out a days worth of juice in fifteen minutes. You would need a hefty battery to absorb it that quick, however. Casady |
Lucaya, Grand Bahama Island to Saint Simons Island GA April 18-19
On Wed, 3 Jun 2009 16:00:34 -0400, "Wilbur Hubbard"
wrote: Note the output is 2.2 KILOwatts. You are so full of **** your eyes are floating. The figure for radars is peak power, the rating, not average, what the battery sees. By your math, your 2.2 kw radar would draw 180 amps. The monster alternator would not be cheap in the box, let alone installed. One more time. A 2kw radar draws less than two amps. By the way, one hundredth the power gives you thirty percent of the range. Power in the radar return is proportion to the fourth power of distance. Were you an English major? None of them ever took Physics. Casady |
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