C
Chris
Guest
I have a speed sensor with my Polar S710 (and a previous model as well). I
have always had to correct a few spikes in velocity which is not a problem
for me. I also use a hard wired computer to avoid toggling for data while
riding. Both devices are always very close in total distance and ride time.
Lately, (the past week or so) I have had the number of spikes that need
correction go way up. I now have to correct 10 or more per hour (out of 180
samples) which is still not bad but it is annoying. BTW, sampling at 5
seconds makes it very unlikely that it will ever be off by any significant
amount. I never have any errors adjacent to one another. I still want to
look in to improving this. I recall that there is a switch in some of these
Polar wireless units. I have both old and new styles for cadence and speed.
I almost never have any problems with cadence. I guess I should note that I
have the watch mounted on a 90 degree stem stub about 7 cm past the fork.
This puts it nearly directly above the speed sensor and about 20 cm forward
or the cadence sensor. I realize that Polar has purposely made these
transmitter somewhat directional and that the "sweet spot" for transmission
may not be what seems most obvious.
I would like to know which transmitters can be adjusted for signal strength
and how to determine the ideal transmission and reception angle for all of
them. I did experiment with moving the watch all over and it had almost no
effect. I think that my next move WRT transmission is changing the angle of
the transmitter but I would like to know how the antennae is mounted
internally. If I don't hear from anyone, I suppose I can crack them both
open and see what I find.
Thanks for any help.
have always had to correct a few spikes in velocity which is not a problem
for me. I also use a hard wired computer to avoid toggling for data while
riding. Both devices are always very close in total distance and ride time.
Lately, (the past week or so) I have had the number of spikes that need
correction go way up. I now have to correct 10 or more per hour (out of 180
samples) which is still not bad but it is annoying. BTW, sampling at 5
seconds makes it very unlikely that it will ever be off by any significant
amount. I never have any errors adjacent to one another. I still want to
look in to improving this. I recall that there is a switch in some of these
Polar wireless units. I have both old and new styles for cadence and speed.
I almost never have any problems with cadence. I guess I should note that I
have the watch mounted on a 90 degree stem stub about 7 cm past the fork.
This puts it nearly directly above the speed sensor and about 20 cm forward
or the cadence sensor. I realize that Polar has purposely made these
transmitter somewhat directional and that the "sweet spot" for transmission
may not be what seems most obvious.
I would like to know which transmitters can be adjusted for signal strength
and how to determine the ideal transmission and reception angle for all of
them. I did experiment with moving the watch all over and it had almost no
effect. I think that my next move WRT transmission is changing the angle of
the transmitter but I would like to know how the antennae is mounted
internally. If I don't hear from anyone, I suppose I can crack them both
open and see what I find.
Thanks for any help.