[Test-Equipment] Who makes this SMA Thumb Wheel?

Wed Jan 7 15:34:16 EST 2015

Hi Brooke,

Take another look, the 0.75" diameter is the bit that stays on the outside  
to be gripped for tightening, either 2 or 4 inches out from the connector 
itself  depending on which version is being used.
The external diameter at the other end, the bit that slips over the  SMA 
connector, doesn't seem to be specified but from the diagrams it doesn't  look 
to be that much greater than the connector diameter, and I'm sure  
Mini-Circuits could clarify.

Regards

Nigel
GM8PZR

In a message dated 07/01/2015 19:48:51 GMT Standard Time,  
brooke at pacific.net writes:

Hi Nigel:

Looking at the images I was about  to buy one, but after checking the 
outside diameter of the wrench (0.75") and  the ID of the hole in the DAGR GPS 
(0.53") decided against it.

-- 
Have Fun,

Brooke Clarke
_http://www.PRC68.com_ (http://www.prc68.com/) 
http://www.end2partygovernment.com/2012Issues.html
http://www.prc68.com/I/DietNutrition.html  
Nigel Clarke via Test-Equipment wrote:

Hi Brooke,

Very good point about the rotating inner, I hadn't considered that,  

although it would also apply to quite a lot of SMA terminations.

Another option I've come across that I wasn't previously aware of is the  

HT-2-SMA long reach spanner from Mini-Circuits, a search will find it.

Regards

Nigel

GM8PZR

In a message dated 07/01/2015 01:08:03 GMT Standard Time,  

_brooke at pacific.net_ (mailto:brooke at pacific.net)  writes:

Hi  Nigel:

Something like that except with the thumb wheel away from the  SMAm end 

would work.

An adapter from SMAm to something else.  But SMA  connectors have a very 

small design life measured in matings.

When I was  working with satellite microwave hardware we used SMAm-SMAf 

adapters called  "connector savers" and had a log 

book of every mating of both the device  being tested and the connector 

saver.

So an adapter with a solid body, like  the one on the eBay, would tend to 

wear out the SMA connector in the DAGR GPS  

receiver.

It's far better the way the cable now works were the cable  remains 

stationary and the SMA nut is tightened without 

rotating the  center contact.

Mail_Attachment --

Have Fun,

Brooke Clarke,  N6GCE

_http://www.PRC68.com_ (http://www.prc68.com/) 

http://www.end2partygovernment.com/2012Issues.html

http://www.prc68.com/I/DietNutrition.html

Nigel  Clarke via Test-Equipment wrote:

Hi Brooke,

I can't help re the thumb wheel but, depending on the diameter and  depth 

of

  the access hole, would something like this be  usable?......

http://www.ebay.com/itm/2-Gold-SMA-male-plug-to-BNC-female-jack-Radio-Adapte

 r-/160517642223

I've got some that are very  similar and the bonus is that body, including

the SMA collar, is  solid.

They wouldn't be my first choice over a "normal" SMA for  most  purposes 

but

they can be quite useful at times.

 It's possible that you might find something similar with an SMA female

 outlet rather than BNC but I don't recall having seen  those.

Regards

 Nigel

GM8PZR

In a  message dated 06/01/2015 16:28:30 GMT Standard Time,

 _brooke at pacific.net_ (mailto:brooke at pacific.net)  writes:

Hi:

The DAGR GPS  receiver has the SMA antenna jack (J3) in a  hole and so 

needs

a  special SMA thumb wheel that reaches into

the  hole.

I'm  trying to find out who makes that plastic SMA thumb wheel. An   

example

is on the DAGR to RA-1 antenna  cable:

 http://www.prc68.com/I/Images/DAGR-to-RA-1-Cable3b.jpg

 http://www.prc68.com/I/DAGR.shtml#DAGR_RA-1

 _<http://www.prc68.com/I/Images/DAGR-to-RA-1-Cable3b.jpg>_ 
(http://www.prc68.com/I/Images/DAGR-to-RA-1-Cable3b.jpg) 

 SMA  DAGR Spinner

p/n: 13499-988-9389-001, NSN:  5935-01-534-6963

The NSN goes  to Rockwell Collins, but I doubt  they actually make it.

Mail_Attachment  --

Have  Fun,

Brooke  Clarke

_http://www.PRC68.com_ (http://www.prc68.com/) 

 http://www.end2partygovernment.com/2012Issues.html

 http://www.prc68.com/I/DietNutrition.html

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