[time-nuts] Partridge Divider Board

Collins, Graham CollinG at navcanada.ca
Mon Feb 28 15:56:38 UTC 2011



Something to be careful with when buying SMA connectors is to ensure you
get the same "polarity". You will find some listed as just SMA and
others as RP-SMA - RP for reverse polarity. The RP variety have the male
/ female pins of the connectors reversed from the standard SMA
connectors.

http://www.amphenolrf.com/products/sma.asp?N=0&sid=4D6AE580948E17F&

and

http://en.wikipedia.org/wiki/SMA_connector


cheers, Graham ve3gtc

 

-----Original Message-----
From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On
Behalf Of David C. Partridge
Sent: February 28, 2011 10:29
To: GPBATEY at compuserve.com; 'Discussion of precise time and frequency
measurement'
Subject: Re: [time-nuts] Partridge Divider Board

eBay (in this case) is your friend - lots of suitable SMA and SMB
vertical or RA connectors easily found.

I recently bought 60 SMB PCB mount verticals for GBP10 I then used RA
SMB connectors to go to an external panel mount BNC.

You should be able to find RA SMA PCB mount sockets (jacks) that will
fit and also allow through panel mounting.

 
<http://uk.rs-online.com/web/search/searchBrowseAction.html?method=getPr
oduct&R=1122858>

A quick ebay search with "sma pcb right angle" turned up these on very
short order and there's lots more suitable for bulkhead mount.

 <http://cgi.ebay.com/270602200692>

If you want TNC (threaded version of BNC) with 5mm (0.2") pinouts -
that's more of a problem as they normally are 0.4".


Regards,
David Partridge






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