[time-nuts] GPSDO module connections
n1hac at dartmouth.edu
Mon Mar 3 14:27:11 EST 2014
RG-59 cable is fine but soldering wires is not a good idea for 1.6GHz.
Use a panel-mount BNC crimp connector made for RG-59 such as the
Amphenol 31-343-RFX. I presume you want to use regular 50 ohm BNC types
rather than the 75 ohm variant.
It is preferred to use coax for the 1 PPS as any reflections will
degrade its risetime.
On 3/3/14 1:01 PM, d0ct0r wrote:
> I am looking for the advise: what will be the better method to connect
> GPSDO module by short extension cable to put its antenna input on
> front or back panel ?
> Lets say, GPSDO module has female “F” connector. And I would like to
> have BNC connector on back panel of my project. Manufacturer of GPSDO
> recommend to use RG-59 cable for antenna connection.
> Is it OK if I'll take some RG-59 from CCTV, cut 6" or 12" of it,
> connect one end to GPSDO (let say this cable has compression type
> connector) and solder other end to BNC on the panel ? Or its better to
> use adapters and no soldering ? Like "F connector-to-BNC" adapter ,
> then short BNC-to-BNC cable connected to BNC panel connector ?
> And other question: is it worth to use RF cable to connect 1PPS output
> from GPSDO to distribution amplifier ? Or regular AWG-22 could do that
> job ? Thanks !
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