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#1
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How do Wireless Computers Work?
Does the display unti have some sort of radio frequency receiver in it, and
the sensor have a radio frequency pulse making thingy in it. If this is the case do the batteries run flat quicker than wired ones while in sleep mode (ie. its' radio's on all the time its parked in the shed)? I'm thinking of getting one, but don't want to be changing the batteries a lot. mark |
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#2
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How do Wireless Computers Work?
Dransfield wrote in message ... Does the display unti have some sort of radio frequency receiver in it, and the sensor have a radio frequency pulse making thingy in it. If this is the case do the batteries run flat quicker than wired ones while in sleep mode (ie. its' radio's on all the time its parked in the shed)? I'm thinking of getting one, but don't want to be changing the batteries a lot. My cateye cordless is still going strong after two years without a battery change. I don't think it is strictly wireless in that it is transmitting all the time. The magnet moving across a coil generates an electro magenetic pulse which the receiver picks up. Or am I talking complete balls? I am open to correction. Bill |
#3
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How do Wireless Computers Work?
"Bill" wrote in message news Dransfield wrote in message ... Does the display unti have some sort of radio frequency receiver in it, and the sensor have a radio frequency pulse making thingy in it. If this is the case do the batteries run flat quicker than wired ones while in sleep mode (ie. its' radio's on all the time its parked in the shed)? I'm thinking of getting one, but don't want to be changing the batteries a lot. My cateye cordless is still going strong after two years without a battery change. I don't think it is strictly wireless in that it is transmitting all the time. The magnet moving across a coil generates an electro magenetic pulse which the receiver picks up. Or am I talking complete balls? I am open to correction. Bill I've just changed the batteries in my £13 Equus for the first time after 4 years. It was so cheap from the Edinburgh Bike Coop I couldn't not have it and I use it every day. |
#4
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How do Wireless Computers Work?
James Annan writes:
Dransfield wrote: Does the display unti have some sort of radio frequency receiver in it, and the sensor have a radio frequency pulse making thingy in it. If this is the case do the batteries run flat quicker than wired ones while in sleep mode The transmitter only transmits when the magnet passes the sensor, so it shouldn't go flat just sitting around. There is one exception to this: if you park the bike with the sensor and magnet lined up then the transmitter will be left on, draining the battery. -- Mike Quin :: Do you want to save before you quit? :: |
#5
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How do Wireless Computers Work?
"Mike Quin" wrote in message ... James Annan writes: Dransfield wrote: Does the display unti have some sort of radio frequency receiver in it, and the sensor have a radio frequency pulse making thingy in it. If this is the case do the batteries run flat quicker than wired ones while in sleep mode The transmitter only transmits when the magnet passes the sensor, so it shouldn't go flat just sitting around. There is one exception to this: if you park the bike with the sensor and magnet lined up then the transmitter will be left on, draining the battery. Probably not as the pulse will be 'edge triggered' if the engineer who designed it was even half competent. T |
#6
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How do Wireless Computers Work?
"Tony W" writes:
"Mike Quin" wrote in message There is one exception to this: if you park the bike with the sensor and magnet lined up then the transmitter will be left on, draining the battery. Probably not as the pulse will be 'edge triggered' if the engineer who designed it was even half competent. If I've still got the one I dismantled a while back lying around I'll check later, but if my memory serves me correctly the sensor end of it consisted of a simple transmitter connected to the battery by way of a reed switch. When the reed switch is closed by the magnet the transmitter is on. -- Mike Quin :: Do you want to save before you quit? :: |
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