Reviews and Problems with Garmin GPS 18x High-Sensitivity LVC
Showing 1-10 of 18
Use for NTP server Time Source
2 weeks ago
Summary: Purchased this unit to use as a GPS disciplined NTP network time server. Added a DB9 serial connector on end of cable, plugged into a Debian-based NTP server and I am in business with a stratum one NTP server for my local network. This unit has run 24/7/365 with no problems. Highly recommended for its 1 pulse-per-second output time output.
Summary: Here are the 5+ Star Ratings: * Triple Accuracy in time, position and elevation. * Simple instruction obtained from Garmin Site, easily implemented. * Works the first time it is plugged in (power up the GPS first) then your APRS Radio. * Supplies data to my Radio without setting the GPS unit. * Consumes negligible current draw. * Use the GPS' built-in Magnetic back or 1/4" screw attach easily to post or car roof. Good Pricing, an arm or a leg not required.
Summary: This little GPS is great. It plugs straight into my existing NMEA systems. It is extremely accurate, gets a fix within seconds of turning on, and has a great update rate. I upgraded to this from a 2 year old garmin hand-held. The tracks on the hand-held only had points once every 20 seconds (verses this units once per second), and often had times with large errors. This unit makes very smooth, accurate tracks.
Summary: Using it to feed my local ntp time server. I'm using the automotive windshield mount and have it stuck to the inside of an east facing window with no problems. The cable was plenty long and I had no issues putting a serial connector on it. Worked right away.
Inexpensive, compact GPS unit for highly accurate serial PPS time.
D. Lloyd, Amazon
27 March 2013
Summary: I have the Garmin 18x LVC GPS attached to a serial card installed in a Debian Linux 'Squeeze' box (which was configured using the Setserial, GPSD, and NTP packages). USB based GPS units are useless for accurately setting the time. The 18x LVC GPS unit requires 5 volts of power (red wire), and for this I use a specific serial card, the StarTech.com 1 Port PCI RS232 Powered Serial Adapter Card (PCI1S650PW) .
Summary: I have purchased many of these units over the years, and have never been let down. It has always exceeded my expectations for accuracy and performance. I first purchased this unit many years ago for an APRS tracker in a vehicle, and it worked for years stuck to the roof of a vehicle. It is fully waterproof.