Results 137 to 153 of 179
09-19-2013, 03:10 AM #137
^ I use both and get identical results. Sounds like it's measuring the harmonic. How do you sound the stringbed?
09-19-2013, 10:36 AM #138
I did the same to sound the string bed for both two apps. The frequency I got from CarlTune is almost twice than that from ClearTune. For example, if I got 1100 Hz from CarlTune, it is 550 Hz in ClearTune. I am wondering if it is the setting issue in ClearTune. I had tried to tweak ClearTune settings. However, it doesn't work..
09-19-2013, 11:34 AM #139
Strange. Oh well, at least you know to double it. Or stick with CarlTune.
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09-19-2013, 07:41 PM #140
BG80P 31 lbs
out of machine 1320hz
3 days 1273hz
2h of play 1265hz
4h of play 1259hz
6h of play sadly broke it on a mishit near the bottom knots
I've been impressed by both bg65ti and bg80p and I probably will have them as go to's from now on.
09-19-2013, 08:54 PM #141
After all, we use the observed frequency of string bed to measure the theoretical string tension. It is well known that there will be significant drop in tension as well as in frequency right after a racquet is strung. As the theoretical tension is given (the pounds you string your racquet), the string bed frequency observed right after stringing should be very much close to the given tension. If frequency is reported after the tension reaches its plateau, one cannot be sure the right tension the current observed frequency corresponds to.
Ideally, I would like to see exactly the frequency data @kwun collected right after stringing. For example, I can sort out the following table that relates different pounds to their frequency for BG80 (ideally for the same type of racquet).
String lbs Frequency
BG80 29 1229
BG80 27 1182
BG80 25 1164
BG80 23 1046
BG80 21 1030
The frequencies in the table best represent the corresponding theoretical tension in pounds. You can also calculate exact the amount of frequency that represents a pound (can vary at different tension).
In my opinion, it's player's job to monitor the string bed frequency after the racquet is strung. Thanks to the table, the player can now understand the current tension his or her racquet retains. If initially the racquet is strung with BG80 at 29 lbs and the frequency observed after a month is 1160 Hz, the player can see there are about 4-pound drop after stringing. If the player feels that the tension now is best for him at the current frequency, he also knows that his ideal tension for BG80 is 25 lbs. However, due to the significant drop in tension in the first several days after stringing, the player can only have his or her racquet strung at 27 or 29 pounds and wait for a period of time until the tension slowly lands to the plateau that is around 25 pounds.
If the goal is to measure tension with observed frequency, it would be better to measure the frequency right after stringing when the frequency best represents the given theoretical tension.
09-20-2013, 04:38 AM #142
09-30-2013, 03:40 AM #143
Yonex AT900P BG80 27/25 1189
Yonex AT900P BG80 27/25 1182
Yonex AT700Limited BG80 27/25 1191
10-14-2013, 01:12 PM #144
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10-15-2013, 03:40 PM #145
This is an excellent thread for me to get an idea on when to change out the strings. Time to start recording frequency on my strings/rackets.
10-18-2013, 02:03 PM #146
VS850 - no prestretch:
0 1295 1 1281 1.08 3 1267 2.16 6 1252 3.32 12 24 1210 6.56 48 72 1st session 1175 9.27 2nd session 1154 10.89
11% after two sessions? Dear lord...
I hope prestretch helps, otherwise I'll be stringing every two weeks!
10-18-2013, 02:16 PM #147
^ You really need pre stretch for VS850, either manually or by machine function. Or you could string 2 lbs higher and let it settle down to your target.
10-18-2013, 03:25 PM #148
10-19-2013, 12:54 PM #149
Vs850 in yonex ns200. 1155 straight away. 3 hours later down to 1125. 24/25+10% PS and manual prestretch also.
10-19-2013, 05:30 PM #150
steady at 1120 for now. Only dropped a pound? Nice
10-19-2013, 05:31 PM #151
Wait till you play with it...
10-19-2013, 05:46 PM #152
I've only tested five or six strings so far, but VS850 isn't actually too bad - I've got a set of BG80 baking, and that's not doing well...
10-19-2013, 05:47 PM #153
It can't be worse than mlxl. That gave me hope for one day then went soggy. I think it's made of wet bread.