Home |
Search |
Today's Posts |
#18
|
|||
|
|||
"Gert Been" wrote in message ... Hi, Talking about "decent" multiplexers, all our NMEA multiplexers have "automatic GPS back-up switching" (plus many other NMEA sentence management features). Read about it he http://brookhouseonline.com/gps_backup_switching.htm . I have been playing with the idea to add a buzzer to warn the user when it switches to the backup GPS. As the "no GPS data" detection is already present, this is very simple to do. If there is sufficient interest, we'll include it as a standard feature. If you want it NOW, we'll add a buzzer to the present model for a small charge if you decide to buy one. Wout Ehh, talking about "Decent" multiplexers: decent multiplexers have isolated inputs, yours don't. I just connected one of yours to a differential NMEA talker output. I can now hear all NMEA data on my SSB!! While trying to find out what's wrong, I found that all inputs on your multiplexer have the B terminals connected to ground!!! NMEA inputs are supposed to be isolated. Your grounded B terminals on the inputs effectively short-circuit any properly designed talker. Was it that hard to add 50 cents worth of optocouplers? Gert Our new multiplexers have opto-isolated inputs and are compliant with CE emission requirements. Strange that I first hear from you via this newsgroup. Would you not have contacted us with your complaint if you had not come across this newsgroup thread? You say you have just installed one of our multiplexers. I have checked our records, but we don't have you listed as a recent direct customer. If you have any kind of problem with a multiplexer, we'll be happy to assist if you contact us via the normal channel. Your problem can be easily resolved. All you need to do is send us an email and let us know where and when you bought your multiplexer. Wout |
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Forum | |||
GpsMap 276C NMEA Interface Problem | Electronics | |||
Wireless 802.11 NMEA server | Electronics | |||
Essentials of a Marine Boat Alarm System | Electronics | |||
NMEA mutiplexer | Electronics | |||
NMEA Noise in SSB | Electronics |