Re: [time-nuts] Distributing GPS L1 signal to many GPS devices

2019-09-24 Thread Taka Kamiya via time-nuts
Oh, yes.  For "production" GPS (one I actually use in lab), there is ONE and only one GPSDO.  I then distribute the 10MHz.  I have a master distribution amp then from there, I have more dist-amp hanging off. I have a separate rack where I have lots of time related equipment.  This is an

Re: [time-nuts] Distributing GPS L1 signal to many GPS devices

2019-09-24 Thread Dana Whitlow
You could minimize problems with accumulated differential delays by *not* daisy chaining- rather arrange the splitters in a hierarchical fashion so that all your outputs have an equal number of splitters in the path. I think your problem is that you started with more than one GPSDO. You need to

Re: [time-nuts] Distributing GPS L1 signal to many GPS devices

2019-09-24 Thread Bob kb8tq
Hi There are a number of MiniCircuits passive multiport splitters that show up on eBay at reasonable (< $40) sort of prices. You can get eight port versions with SMA connectors on them fairly quickly. Other connector types or higher port counts may take a bit of shopping and added cost. There

[time-nuts] Distributing GPS L1 signal to many GPS devices

2019-09-24 Thread Taka Kamiya via time-nuts
Currently, I have a symetricom antenna outside that feeds an HP58536A (4 port).  One of the output port daisy chains to another HP58536A's antenna port.  That gives me 7 ports total. Well, I need more.  I can simply daisy chain another one but it doesn't look like an elegant solution.  Besides,