[Milsurplus] [Boatanchors] DAG Receiver: What Is This Thing?

[mikea]

On Thu, Jan 21, 2016 at 08:13:13PM -0600, David Stinson wrote:
> This is the top of my DAG receiver:
> https://goo.gl/photos/55fu8uG5MFuzRe3AA
> 
> There's a threaded cap on the right side that covers
> the sense antenna port.
> The one of the left, for the loop connection, is missing.
> 
> My question:
> If I were going to ask some outfit like McMaster Carr
> about one, what do I call it?  How do I specify its
> size and thread?  What do you call the ball/chain keeper that is screwed to
> the chassis?

If you have a thread gauge or an assortment of screws, you can measure the
threads per inch. A ruler or vernier calipers across the diameter of the
threads will give you at least a horseback guess at the dimension.

-- 
Mike Andrews, W5EGO
mikea at mikea.ath.cx
Tired old sysadmin