Solution Works great use with bittimesync software connects to usb port of your computer can be attatched to inside window for use.
https://www.amazon.com/Waterproof-Nav...
Goto lower part of page pick compare to similar when page loads scroll down to tech specs and gives links to manuals and extensive data. Only costs about $25 shipped!
Driver assigns it a com port and set the bittimesync software to use gps the comport and 9600 baud.
https://www.amazon.com/Waterproof-Nav...
Goto lower part of page pick compare to similar when page loads scroll down to tech specs and gives links to manuals and extensive data. Only costs about $25 shipped!
Driver assigns it a com port and set the bittimesync software to use gps the comport and 9600 baud.
- 55 Posts
- 20 Reply Likes
Posted 2 months ago
- 1 Post
- 0 Reply Likes
Do you have internet full time? If so download Meinberg NTP software (https://www.meinbergglobal.com/englis...). This uses the NTP daemon and queries a list, you select, of time servers world wide. I use it for EME
- 55 Posts
- 20 Reply Likes
No full time internet thats why I wanted cheap gps solution.
- 88 Posts
- 15 Reply Likes
What software do you use to get time?
George Molnar, KF2T, Elmer
- 1612 Posts
- 570 Reply Likes
NMEA Time works with ntp or GPS. Great Windows app.
- 88 Posts
- 15 Reply Likes
- 126 Posts
- 28 Reply Likes
So, I hooked up my Chinese Communist GPS synced 10MHz
reference to my Flex 6400. ( Many referenced here all seem to have the same insides. ) TX reads 0.9HZ high using my Efratom GPS enabled Rubidium frequency standard as the time base for my counter. Then I reversed and put the Efratom to the Flex and the Chicomm unit to the counter. flex still transmits 0.9 Hz high. If I sync the frequency counter with one reference and count the other it reads 0.0 ( Both output 10 Mhz ) But, when I calibrate the internal Flex TCXO at 15MHz the transmit frequency is dead on at 7195.500.0. Any Ideas our there?
reference to my Flex 6400. ( Many referenced here all seem to have the same insides. ) TX reads 0.9HZ high using my Efratom GPS enabled Rubidium frequency standard as the time base for my counter. Then I reversed and put the Efratom to the Flex and the Chicomm unit to the counter. flex still transmits 0.9 Hz high. If I sync the frequency counter with one reference and count the other it reads 0.0 ( Both output 10 Mhz ) But, when I calibrate the internal Flex TCXO at 15MHz the transmit frequency is dead on at 7195.500.0. Any Ideas our there?
(Edited)
- 126 Posts
- 28 Reply Likes
Tim solved my problem on the Facebook Group.
Tim Ellison Do you have a TX calibration offset value that is not 0? Disconnect the external clock source and look at the frequency offset. It should be 0 if you are using an external source and the source is dead on 10 MHz. Otherwise, do a frequency calibration with a known frequency reference with the external clock connected.
My Rb source is about 0.2 Hz high, so I have to you an offset to correct it.
Tim Ellison Do you have a TX calibration offset value that is not 0? Disconnect the external clock source and look at the frequency offset. It should be 0 if you are using an external source and the source is dead on 10 MHz. Otherwise, do a frequency calibration with a known frequency reference with the external clock connected.
My Rb source is about 0.2 Hz high, so I have to you an offset to correct it.
Related Categories
-
Third Party Applications and Products
- 861 Conversations
- 236 Followers
-
FLEX-6400 Signature Series SDR
- 726 Conversations
- 120 Followers
-
FLEX-6400M Signature Series SDR
- 705 Conversations
- 101 Followers
-
FLEX-6600 Signature Series SDR
- 810 Conversations
- 127 Followers
-
FLEX-6600M Signature Series SDR
- 837 Conversations
- 122 Followers