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CAI 302; slow download of flight log
Hi all, I downloaded a 4hr 30' flight from the 302 to my PC for the
first time & it took 1hr 10'. I see from previous discussion the baud rate should increase significantly when downloading flight logs, but apparently it didn't in this case. Any advice on how to fix this will be appreciated. Thanks, Bill |
#2
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CAI 302; slow download of flight log
On Oct 27, 3:01*am, BillT wrote:
Hi all, I downloaded a 4hr 30' flight from the 302 to my PC for the first time & it took 1hr 10'. I see from previous discussion the baud rate should increase significantly when downloading flight logs, but apparently it didn't in this case. Any advice on how to fix this will be appreciated. Thanks, *Bill I have never timed a 302 log download. I'd guess that for a 5 hour flight it takes about 5 minutes. I use my Aero 1530 with the Cambridge utility for download and have never tried it with a PC. The nice thing about the 302 is that you never need to take a PC to the glider, or to take the 302 to a PC. I can't say for sure that the baud rate does not change during download but I never heard that before. BTW the user port specification refers to transfer of 302 log to the user's device as upload not download. It includes this advice: "Note: When using this mode at baud rates of 19200 and higher, use of the echoing feature is recommended.: That suggests to me that the log transfer is made at whatever baud rate the 302 has been set to. The 302 defaults to 4800 baud but the rate can be changed by any interfacing device. It will always revert to 4800 next time it powers up. What PC software are you using for the log transfer? Andy |
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CAI 302; slow download of flight log
At 10:01 27 October 2011, BillT wrote:
Hi all, I downloaded a 4hr 30' flight from the 302 to my PC for the first time & it took 1hr 10'. I see from previous discussion the baud rate should increase significantly when downloading flight logs, but apparently it didn't in this case. Any advice on how to fix this will be appreciated. Thanks, Bill What did you use (software) to do the download???? If you don't use the 302 PC utility you could be there all day. Oh, wait a minute, you were! http://www.cambridge-aero.com/executables/3UTPC256.zip |
#4
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CAI 302; slow download of flight log
On Oct 27, 5:43*am, Peter Wyld wrote:
At 10:01 27 October 2011, BillT wrote: Hi all, I downloaded a 4hr 30' flight from the 302 to my PC for the first time & it took 1hr 10'. I see from previous discussion the baud rate should increase significantly when downloading flight logs, but apparently it didn't in this case. Any advice on how to fix this will be appreciated. Thanks, *Bill What did you use (software) to do the download???? If you don't use the 302 PC utility you could be there all day. Oh, wait a minute, you were! http://www.cambridge-aero.com/executables/3UTPC256.zip Downloading time is also affected by the size of the file which is affected by the logging interval. The recommended logging interval is 4 sec if I recall correct. If it is set to 1 sec it will take 4 times longer to download. Ramy |
#5
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CAI 302; slow download of flight log
On Oct 28, 8:47*am, Ramy wrote:
On Oct 27, 5:43*am, Peter Wyld wrote: At 10:01 27 October 2011, BillT wrote: Hi all, I downloaded a 4hr 30' flight from the 302 to my PC for the first time & it took 1hr 10'. I see from previous discussion the baud rate should increase significantly when downloading flight logs, but apparently it didn't in this case. Any advice on how to fix this will be appreciated. Thanks, *Bill What did you use (software) to do the download???? If you don't use the 302 PC utility you could be there all day. Oh, wait a minute, you were! http://www.cambridge-aero.com/executables/3UTPC256.zip Downloading time is also affected by the size of the file which is affected by the logging interval. The recommended logging interval is 4 sec if I recall correct. If it is set to 1 sec it will take 4 times longer to download. Ramy Thanks everyone. I'm using the CAI Utility v. 2.5.6 with a Belkin USB to serial adaptor. I think the 302 logging interval is 4 sec (but will check tomorrow). Bill |
#6
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CAI 302; slow download of flight log
On Oct 28, 12:44*pm, BillT wrote:
On Oct 28, 8:47*am, Ramy wrote: On Oct 27, 5:43*am, Peter Wyld wrote: At 10:01 27 October 2011, BillT wrote: Hi all, I downloaded a 4hr 30' flight from the 302 to my PC for the first time & it took 1hr 10'. I see from previous discussion the baud rate should increase significantly when downloading flight logs, but apparently it didn't in this case. Any advice on how to fix this will be appreciated. Thanks, *Bill What did you use (software) to do the download???? If you don't use the 302 PC utility you could be there all day. Oh, wait a minute, you were! http://www.cambridge-aero.com/executables/3UTPC256.zip Downloading time is also affected by the size of the file which is affected by the logging interval. The recommended logging interval is 4 sec if I recall correct. If it is set to 1 sec it will take 4 times longer to download. Ramy Thanks everyone. I'm using the CAI Utility v. 2.5.6 with a Belkin USB to serial adaptor. I think the 302 logging interval is 4 sec (but will check tomorrow). Bill- Hide quoted text - - Show quoted text - I checked & the logging interval is set at 4 sec. I also tried another Belkin USB to serial adaptor, but the download rate was the same. I then tried to download a flight log from a 302 in another a/c, but again the download rate was very slow. Any further suggestions? |
#7
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CAI 302; slow download of flight log
Thanks everyone. I'm using the CAI Utility v. 2.5.6 with a Belkin USB to serial adaptor. I think the 302 logging interval is 4 sec (but will check tomorrow). Bill- Hide quoted text - - Show quoted text - I checked & the logging interval is set at 4 sec. I also tried another Belkin USB to serial adaptor, but the download rate was the same. I then tried to download a flight log from a 302 in another a/c, but again the download rate was very slow. Any further suggestions? I would try downloading to a PC with a REAL serial port, or to a PDA and so remove the Belkin from the equation. Tim Newport-Peace I had this problem once. I can't remember if I was using a Belkin brand USB-serial, but I was using a "name brand" one (i.e. not the cheapest no-name brand that I could find). It may very well have been Belkin. The first time I tried it, it was amazingly slow (like an hour to download a flight). After some dead-scratching, I went out and bought another (cheap) USB-Serial (I believe the brand is "Prolific") and it's been working fine ever since. I have no explanation for this, but I'd suggest spending $10 to give another brand of USB-serial. My suggestion would be to try to find one that has a driver packaged with the unit. I have a theory that some of the units that don't have their own drivers utilize "generic" drivers, or else they use an inappropriate driver and this can cause weird problems. I may be wrong about the driver issue, but buying a cheap Chinese-brand USB-serial that came with its own driver disk worked for me. -- Stefan Murry |
#8
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CAI 302; slow download of flight log
On Nov 1, 1:51*am, "S. Murry" wrote:
Thanks everyone. I'm using theCAIUtility v. 2.5.6 with a Belkin USB to serial adaptor. I think the302logging interval is 4 sec (but will check tomorrow). Bill- Hide quoted text - - Show quoted text - I checked & the logging interval is set at 4 sec. I also tried another Belkin USB to serial adaptor, but thedownloadrate was the same. I then tried todownloada flight log from a302in another a/c, but again thedownloadrate was veryslow. Any further suggestions? I would try downloading to a PC with a REAL serial port, or to a PDA and so remove the Belkin from the equation. Tim Newport-Peace * * * * * * * * * * * I had this problem once. *I can't remember if I was using a Belkin brand USB-serial, but I was using a "name brand" one (i.e. not the cheapest no-name brand that I could find). *It may very well have been Belkin. The first time I tried it, it was amazinglyslow(like an hour todownload a flight). *After some dead-scratching, I went out and bought another (cheap) USB-Serial (I believe the brand is "Prolific") and it's been working fine ever since. I have no explanation for this, but I'd suggest spending $10 to give another brand of USB-serial. *My suggestion would be to try to find one that has a driver packaged with the unit. *I have a theory that some of the units that don't have their own drivers utilize "generic" drivers, or else they use an inappropriate driver and this can cause weird problems. I may be wrong about the driver issue, but buying a cheap Chinese-brand USB-serial that came with its own driver disk worked for me. -- Stefan Murry- Hide quoted text - - Show quoted text - As suggested I tried downloading with a PDA. Resurrected an Ipaq 2490, loaded the CAI utility program & borrowed a cable. The download of the 4.5Hr flight that had taken 1Hr 10' with the Belkin serial to USB adaptor, took less than 3' with the Ipaq. Thanks again for suggestions. Bill |
#9
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CAI 302; slow download of flight log
On Nov 7, 9:57*pm, BillT wrote:
On Nov 1, 1:51*am, "S. Murry" wrote: Thanks everyone. I'm using theCAIUtility v. 2.5.6 with a Belkin USB to serial adaptor. I think the302logging interval is 4 sec (but will check tomorrow). Bill- Hide quoted text - - Show quoted text - I checked & the logging interval is set at 4 sec. I also tried another Belkin USB to serial adaptor, but thedownloadrate was the same. I then tried todownloada flight log from a302in another a/c, but again thedownloadrate was veryslow. Any further suggestions? I would try downloading to a PC with a REAL serial port, or to a PDA and so remove the Belkin from the equation. Tim Newport-Peace * * * * * * * * * * * I had this problem once. *I can't remember if I was using a Belkin brand USB-serial, but I was using a "name brand" one (i.e. not the cheapest no-name brand that I could find). *It may very well have been Belkin. The first time I tried it, it was amazinglyslow(like an hour todownload a flight). *After some dead-scratching, I went out and bought another (cheap) USB-Serial (I believe the brand is "Prolific") and it's been working fine ever since. I have no explanation for this, but I'd suggest spending $10 to give another brand of USB-serial. *My suggestion would be to try to find one that has a driver packaged with the unit. *I have a theory that some of the units that don't have their own drivers utilize "generic" drivers, or else they use an inappropriate driver and this can cause weird problems.. I may be wrong about the driver issue, but buying a cheap Chinese-brand USB-serial that came with its own driver disk worked for me. -- Stefan Murry- Hide quoted text - - Show quoted text - As suggested I tried downloading with a PDA. Resurrected an Ipaq 2490, loaded the CAI utility program & borrowed a cable. The download of the 4.5Hr flight that had taken 1Hr 10' with the Belkin serial to USB adaptor, took less than 3' with the Ipaq. Thanks again for suggestions. *Bill I don't know much about 302. But I use it for 10 years and one thing I've noticed is that it doesn't like to download anything, when the main battery is low. It that is a usually the case after a long flight. rk |
#10
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CAI 302; slow download of flight log
I don't know much about the inner workings of 302. But from using it
for last 10 years I notice that it doesn't like to download anything if the main battery is low. My battery is low after most of the long flights. rk |
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