tag:blogger.com,1999:blog-6245413346375218188.post6477635397182653307..comments2024-03-15T05:42:04.481-07:00Comments on Nerd Ralph: Rigol DS1054Z frequency counter accuracyRalph Doncasterhttp://www.blogger.com/profile/00037504544742962130noreply@blogger.comBlogger3125tag:blogger.com,1999:blog-6245413346375218188.post-61604275585158765072020-03-15T14:54:11.815-07:002020-03-15T14:54:11.815-07:00Thanks, i had an error in my wiring. Everything wo...Thanks, i had an error in my wiring. Everything works with default settings. Although i had to increase the NTP update interval from 4 to 8 seconds, i think its because the default ntp server doesnt support 4 sec update anymore.<br />Also, my DS1054Z came out at about -2,0 to -2,2ppm error. I think i might upgrade the internal oscillator of the scope to an OCXO with below 1ppm error, so the Counter will be more useful :)<br />many greetings and thanks for the article, helped alot!SRMeisterhttps://www.blogger.com/profile/06482253227002561076noreply@blogger.comtag:blogger.com,1999:blog-6245413346375218188.post-43667747909419104532020-03-10T21:59:10.747-07:002020-03-10T21:59:10.747-07:00I don't recall changing the default settings f...I don't recall changing the default settings for 1kHz input. At 1kHz and 50% duty cycle, the low time is 500uS, which is the same as a UART zero frame at 18kbps. If the FTDI is ignoring them at the default 115.2kbps baud rate, try a lower baud rate like 9600bps or 14.4kbps.Ralph Doncasterhttps://www.blogger.com/profile/00037504544742962130noreply@blogger.comtag:blogger.com,1999:blog-6245413346375218188.post-9221175656041020102020-03-07T16:25:39.855-08:002020-03-07T16:25:39.855-08:00what settings did you use one the first page of NF...what settings did you use one the first page of NFT for the COM port? I have an FTDI USB UART Cable, 3V3, and it doesnt see the pulses at the default settings.SRMeisterhttps://www.blogger.com/profile/06482253227002561076noreply@blogger.com