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Discussion of precise time and frequency measurement

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Need a simple ID for some gear

DS
d.seiter@comcast.net
Fri, Oct 3, 2008 8:43 AM

I don't know a whole bunch about microwave gear, so I need a little help.  I came across a small box in a pile this evening and I don't have a clue what it is.

It's a T construct, with SMAs at both ends of the horizontal.  The vertical end looks like it's terminated to gnd.  Internal construction in a plate which connects all three terminals.  Above and below the plate is a ceramic triangle with a circular black insert.  Each plate of the outer case has a circular magnet the same size as the black insert on the ceramic plates, on the external side, and there is a U shaped steel clamp which covers the entire assembly.

This is probably a really easy question for some of you out there....what is it?

I also came across some K&L filters from my time at Cylink, but the website gave me no joy.  When the sample says S/N 1, I don't expect much...  I suppose I could just feed a signal through them and see where the outputs occur....  both series have 5787.5 embedded n the part number, so I'm thinking that's the center or cutoff frequency.

-Dave

I don't know a whole bunch about microwave gear, so I need a little help. I came across a small box in a pile this evening and I don't have a clue what it is. It's a T construct, with SMAs at both ends of the horizontal. The vertical end looks like it's terminated to gnd. Internal construction in a plate which connects all three terminals. Above and below the plate is a ceramic triangle with a circular black insert. Each plate of the outer case has a circular magnet the same size as the black insert on the ceramic plates, on the external side, and there is a U shaped steel clamp which covers the entire assembly. This is probably a really easy question for some of you out there....what is it? I also came across some K&L filters from my time at Cylink, but the website gave me no joy. When the sample says S/N 1, I don't expect much... I suppose I could just feed a signal through them and see where the outputs occur.... both series have 5787.5 embedded n the part number, so I'm thinking that's the center or cutoff frequency. -Dave
SW
Stan W1LE
Fri, Oct 3, 2008 1:08 PM

Sounds like a isolator, a passive ferrite device.

Stan, W1LE    Cape Cod

d.seiter@comcast.net wrote:

I don't know a whole bunch about microwave gear, so I need a little help.  I came across a small box in a pile this evening and I don't have a clue what it is.

It's a T construct, with SMAs at both ends of the horizontal.  The vertical end looks like it's terminated to gnd.  Internal construction in a plate which connects all three terminals.  Above and below the plate is a ceramic triangle with a circular black insert.  Each plate of the outer case has a circular magnet the same size as the black insert on the ceramic plates, on the external side, and there is a U shaped steel clamp which covers the entire assembly.

This is probably a really easy question for some of you out there....what is it?

I also came across some K&L filters from my time at Cylink, but the website gave me no joy.  When the sample says S/N 1, I don't expect much...  I suppose I could just feed a signal through them and see where the outputs occur....  both series have 5787.5 embedded n the part number, so I'm thinking that's the center or cutoff frequency.

-Dave


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Sounds like a isolator, a passive ferrite device. Stan, W1LE Cape Cod d.seiter@comcast.net wrote: > I don't know a whole bunch about microwave gear, so I need a little help. I came across a small box in a pile this evening and I don't have a clue what it is. > > It's a T construct, with SMAs at both ends of the horizontal. The vertical end looks like it's terminated to gnd. Internal construction in a plate which connects all three terminals. Above and below the plate is a ceramic triangle with a circular black insert. Each plate of the outer case has a circular magnet the same size as the black insert on the ceramic plates, on the external side, and there is a U shaped steel clamp which covers the entire assembly. > > This is probably a really easy question for some of you out there....what is it? > > I also came across some K&L filters from my time at Cylink, but the website gave me no joy. When the sample says S/N 1, I don't expect much... I suppose I could just feed a signal through them and see where the outputs occur.... both series have 5787.5 embedded n the part number, so I'm thinking that's the center or cutoff frequency. > > -Dave > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > >
LJ
Lux, James P
Fri, Oct 3, 2008 1:19 PM

Ferrite circulator.
Black insert is ferrite
If one of the three ports is terminated, it¹s hooked up as an isolator.

Jim

On 10/3/08 1:43 AM, "d.seiter@comcast.net" d.seiter@comcast.net wrote:

I don't know a whole bunch about microwave gear, so I need a little help.  I
came across a small box in a pile this evening and I don't have a clue what it
is.

It's a T construct, with SMAs at both ends of the horizontal.  The vertical
end looks like it's terminated to gnd.  Internal construction in a plate which
connects all three terminals.  Above and below the plate is a ceramic triangle
with a circular black insert.  Each plate of the outer case has a circular
magnet the same size as the black insert on the ceramic plates, on the
external side, and there is a U shaped steel clamp which covers the entire
assembly.

This is probably a really easy question for some of you out there....what is
it?

I also came across some K&L filters from my time at Cylink, but the website
gave me no joy.  When the sample says S/N 1, I don't expect much...  I suppose
I could just feed a signal through them and see where the outputs occur....
both series have 5787.5 embedded n the part number, so I'm thinking that's the
center or cutoff frequency.

Ferrite circulator. Black insert is ferrite If one of the three ports is terminated, it¹s hooked up as an isolator. Jim On 10/3/08 1:43 AM, "d.seiter@comcast.net" <d.seiter@comcast.net> wrote: > I don't know a whole bunch about microwave gear, so I need a little help. I > came across a small box in a pile this evening and I don't have a clue what it > is. > > It's a T construct, with SMAs at both ends of the horizontal. The vertical > end looks like it's terminated to gnd. Internal construction in a plate which > connects all three terminals. Above and below the plate is a ceramic triangle > with a circular black insert. Each plate of the outer case has a circular > magnet the same size as the black insert on the ceramic plates, on the > external side, and there is a U shaped steel clamp which covers the entire > assembly. > > This is probably a really easy question for some of you out there....what is > it? > > I also came across some K&L filters from my time at Cylink, but the website > gave me no joy. When the sample says S/N 1, I don't expect much... I suppose > I could just feed a signal through them and see where the outputs occur.... > both series have 5787.5 embedded n the part number, so I'm thinking that's the > center or cutoff frequency. >