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Discussion of precise time and frequency measurement

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Delay through GPS antenna splitter/amplifier -- an answer, and a question

RW
Richard W. Solomon
Sun, Mar 18, 2007 1:26 AM

Just a guess, but SPDT toggle switch ?
How much does he want for them ?

Regards, Dick, W1KSZ

-----Original Message-----
From: time-nuts-bounces@febo.com [mailto:time-nuts-bounces@febo.com]On
Behalf Of Joseph Gray
Sent: Saturday, March 17, 2007 9:15 PM
To: Discussion of precise time and frequency measurement
Subject: [time-nuts] Coax switch

The local surplus guy got in a few dozen coax switches. The only markings on
them say "Type DSWA0". Dimensions are about 2.6" H x 2" D x 1" W. There is a
toggle switch on the front and three BNC connectors on the back.

I can't find any information about these. Does anyone know anything about
these?

Thanks.


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Just a guess, but SPDT toggle switch ? How much does he want for them ? Regards, Dick, W1KSZ -----Original Message----- From: time-nuts-bounces@febo.com [mailto:time-nuts-bounces@febo.com]On Behalf Of Joseph Gray Sent: Saturday, March 17, 2007 9:15 PM To: Discussion of precise time and frequency measurement Subject: [time-nuts] Coax switch The local surplus guy got in a few dozen coax switches. The only markings on them say "Type DSWA0". Dimensions are about 2.6" H x 2" D x 1" W. There is a toggle switch on the front and three BNC connectors on the back. I can't find any information about these. Does anyone know anything about these? Thanks. _______________________________________________ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
JG
Joseph Gray
Sun, Mar 18, 2007 2:27 AM

Just a guess, but SPDT toggle switch ?
How much does he want for them ?

Regards, Dick, W1KSZ

I would assume so. I have one and will have to put a meter on it. I was
curious if anyone knew what frequency range these might be good for.

As for price, he said he would probably put them on ebay for $10 each. If
there is interest, I can see about arranging a group buy with him before he
puts them on ebay.

> Just a guess, but SPDT toggle switch ? > How much does he want for them ? > > Regards, Dick, W1KSZ I would assume so. I have one and will have to put a meter on it. I was curious if anyone knew what frequency range these might be good for. As for price, he said he would probably put them on ebay for $10 each. If there is interest, I can see about arranging a group buy with him before he puts them on ebay.
JG
Joseph Gray
Sun, Mar 18, 2007 2:34 AM

I just checked with a meter and they are DPDT. I read about 0.2 Ohms from
the center BNC when switched to each outer BNC.

----- Original Message -----
From: "Joseph Gray" jgray@zianet.com
To: "Discussion of precise time and frequency measurement"
time-nuts@febo.com
Sent: Saturday, March 17, 2007 8:27 PM
Subject: Re: [time-nuts] Coax switch

Just a guess, but SPDT toggle switch ?
How much does he want for them ?

Regards, Dick, W1KSZ

I would assume so. I have one and will have to put a meter on it. I was
curious if anyone knew what frequency range these might be good for.

As for price, he said he would probably put them on ebay for $10 each. If
there is interest, I can see about arranging a group buy with him before
he
puts them on ebay.


time-nuts mailing list
time-nuts@febo.com
https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts

I just checked with a meter and they are DPDT. I read about 0.2 Ohms from the center BNC when switched to each outer BNC. ----- Original Message ----- From: "Joseph Gray" <jgray@zianet.com> To: "Discussion of precise time and frequency measurement" <time-nuts@febo.com> Sent: Saturday, March 17, 2007 8:27 PM Subject: Re: [time-nuts] Coax switch >> Just a guess, but SPDT toggle switch ? >> How much does he want for them ? >> >> Regards, Dick, W1KSZ > > I would assume so. I have one and will have to put a meter on it. I was > curious if anyone knew what frequency range these might be good for. > > As for price, he said he would probably put them on ebay for $10 each. If > there is interest, I can see about arranging a group buy with him before > he > puts them on ebay. > > > _______________________________________________ > time-nuts mailing list > time-nuts@febo.com > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >
DJ
Didier Juges
Sun, Mar 18, 2007 2:47 AM

I assume these are signal switches, as opposed to power switches?

Didier

Joseph Gray wrote:

I just checked with a meter and they are DPDT. I read about 0.2 Ohms from
the center BNC when switched to each outer BNC.

----- Original Message -----
From: "Joseph Gray" jgray@zianet.com
To: "Discussion of precise time and frequency measurement"
time-nuts@febo.com
Sent: Saturday, March 17, 2007 8:27 PM
Subject: Re: [time-nuts] Coax switch

Just a guess, but SPDT toggle switch ?
How much does he want for them ?

Regards, Dick, W1KSZ

I would assume so. I have one and will have to put a meter on it. I was
curious if anyone knew what frequency range these might be good for.

As for price, he said he would probably put them on ebay for $10 each. If
there is interest, I can see about arranging a group buy with him before
he
puts them on ebay.


time-nuts mailing list
time-nuts@febo.com
https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts

I assume these are *signal* switches, as opposed to *power* switches? Didier Joseph Gray wrote: > I just checked with a meter and they are DPDT. I read about 0.2 Ohms from > the center BNC when switched to each outer BNC. > > ----- Original Message ----- > From: "Joseph Gray" <jgray@zianet.com> > To: "Discussion of precise time and frequency measurement" > <time-nuts@febo.com> > Sent: Saturday, March 17, 2007 8:27 PM > Subject: Re: [time-nuts] Coax switch > > > >>> Just a guess, but SPDT toggle switch ? >>> How much does he want for them ? >>> >>> Regards, Dick, W1KSZ >>> >> I would assume so. I have one and will have to put a meter on it. I was >> curious if anyone knew what frequency range these might be good for. >> >> As for price, he said he would probably put them on ebay for $10 each. If >> there is interest, I can see about arranging a group buy with him before >> he >> puts them on ebay. >> >> >> _______________________________________________ >> time-nuts mailing list >> time-nuts@febo.com >> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >> >> > > > _______________________________________________ > time-nuts mailing list > time-nuts@febo.com > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > >
JG
Joseph Gray
Sun, Mar 18, 2007 2:59 AM

I assume these are signal switches, as opposed to power switches?

Didier

Well, as I said, they have BNC connectors on them. Also, from the markings
on the panel they were mounted in, they were part of some type of telemetry
system.

I was going to try hooking the one I have up to a signal generator and
comparing the input/output at various frequencies (using my scope) to see if
there is any noticeable degradation. I don't have anything fancier to test
these with.

>I assume these are *signal* switches, as opposed to *power* switches? > > Didier Well, as I said, they have BNC connectors on them. Also, from the markings on the panel they were mounted in, they were part of some type of telemetry system. I was going to try hooking the one I have up to a signal generator and comparing the input/output at various frequencies (using my scope) to see if there is any noticeable degradation. I don't have anything fancier to test these with.
RW
Richard W. Solomon
Sun, Mar 18, 2007 3:15 AM

DPDT ??

73, Dick, W1KSZ

-----Original Message-----
From: time-nuts-bounces@febo.com [mailto:time-nuts-bounces@febo.com]On
Behalf Of Joseph Gray
Sent: Saturday, March 17, 2007 10:34 PM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Coax switch

I just checked with a meter and they are DPDT. I read about 0.2 Ohms from
the center BNC when switched to each outer BNC.

----- Original Message -----
From: "Joseph Gray" jgray@zianet.com
To: "Discussion of precise time and frequency measurement"
time-nuts@febo.com
Sent: Saturday, March 17, 2007 8:27 PM
Subject: Re: [time-nuts] Coax switch

Just a guess, but SPDT toggle switch ?
How much does he want for them ?

Regards, Dick, W1KSZ

I would assume so. I have one and will have to put a meter on it. I was
curious if anyone knew what frequency range these might be good for.

As for price, he said he would probably put them on ebay for $10 each. If
there is interest, I can see about arranging a group buy with him before
he
puts them on ebay.


time-nuts mailing list
time-nuts@febo.com
https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts

DPDT ?? 73, Dick, W1KSZ -----Original Message----- From: time-nuts-bounces@febo.com [mailto:time-nuts-bounces@febo.com]On Behalf Of Joseph Gray Sent: Saturday, March 17, 2007 10:34 PM To: Discussion of precise time and frequency measurement Subject: Re: [time-nuts] Coax switch I just checked with a meter and they are DPDT. I read about 0.2 Ohms from the center BNC when switched to each outer BNC. ----- Original Message ----- From: "Joseph Gray" <jgray@zianet.com> To: "Discussion of precise time and frequency measurement" <time-nuts@febo.com> Sent: Saturday, March 17, 2007 8:27 PM Subject: Re: [time-nuts] Coax switch >> Just a guess, but SPDT toggle switch ? >> How much does he want for them ? >> >> Regards, Dick, W1KSZ > > I would assume so. I have one and will have to put a meter on it. I was > curious if anyone knew what frequency range these might be good for. > > As for price, he said he would probably put them on ebay for $10 each. If > there is interest, I can see about arranging a group buy with him before > he > puts them on ebay. > > > _______________________________________________ > time-nuts mailing list > time-nuts@febo.com > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > _______________________________________________ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
JM
John Miles
Sun, Mar 18, 2007 3:17 AM

Dick: you got my message re: the TDS 544, right?  (Apologies for the misuse
of bandwidth but I have had a lot of trouble emailing Earthlink users
lately, and wanted to make sure I got through.)

-- john, KE5FX

-----Original Message-----
From: time-nuts-bounces@febo.com [mailto:time-nuts-bounces@febo.com]On
Behalf Of Richard W. Solomon
Sent: Saturday, March 17, 2007 8:15 PM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Coax switch

DPDT ??

73, Dick, W1KSZ

Dick: you got my message re: the TDS 544, right? (Apologies for the misuse of bandwidth but I have had a *lot* of trouble emailing Earthlink users lately, and wanted to make sure I got through.) -- john, KE5FX > -----Original Message----- > From: time-nuts-bounces@febo.com [mailto:time-nuts-bounces@febo.com]On > Behalf Of Richard W. Solomon > Sent: Saturday, March 17, 2007 8:15 PM > To: Discussion of precise time and frequency measurement > Subject: Re: [time-nuts] Coax switch > > > DPDT ?? > > 73, Dick, W1KSZ >
CV
Christian Vogel
Sun, Mar 18, 2007 9:34 AM

Hi Richard,

DPDT ??

double pole, double throw, which could be drawn like this:

-----o
-----o ---- o -----    (pole 1)

-----o
-----o ---- o -----    (pole 2)
^
|
Two "throws" each.

Chris
Hi Richard, > DPDT ?? > double pole, double throw, which could be drawn like this: -----o -----o ---- o ----- (pole 1) -----o -----o ---- o ----- (pole 2) ^ | Two "throws" each. Chris
DJ
Didier Juges
Sun, Mar 18, 2007 11:04 AM

Interesting, I only have one problem with Earthlink users: absolutely
nothing gets through :-)

Didier

John Miles wrote:

Dick: you got my message re: the TDS 544, right?  (Apologies for the misuse
of bandwidth but I have had a lot of trouble emailing Earthlink users
lately, and wanted to make sure I got through.)

-- john, KE5FX

Interesting, I only have *one* problem with Earthlink users: absolutely nothing gets through :-) Didier John Miles wrote: > Dick: you got my message re: the TDS 544, right? (Apologies for the misuse > of bandwidth but I have had a *lot* of trouble emailing Earthlink users > lately, and wanted to make sure I got through.) > > -- john, KE5FX >
RW
Richard W. Solomon
Sun, Mar 18, 2007 12:54 PM

That's 6 BNC connectors, the switch has only three.

73, Dick, W1KSZ

-----Original Message-----
From: time-nuts-bounces@febo.com [mailto:time-nuts-bounces@febo.com]On
Behalf Of Christian Vogel
Sent: Sunday, March 18, 2007 5:35 AM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Coax switch

Hi Richard,

DPDT ??

double pole, double throw, which could be drawn like this:

-----o
-----o ---- o -----    (pole 1)

-----o
-----o ---- o -----    (pole 2)
^
|
Two "throws" each.

Chris

time-nuts mailing list
time-nuts@febo.com
https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts

That's 6 BNC connectors, the switch has only three. 73, Dick, W1KSZ -----Original Message----- From: time-nuts-bounces@febo.com [mailto:time-nuts-bounces@febo.com]On Behalf Of Christian Vogel Sent: Sunday, March 18, 2007 5:35 AM To: Discussion of precise time and frequency measurement Subject: Re: [time-nuts] Coax switch Hi Richard, > DPDT ?? > double pole, double throw, which could be drawn like this: -----o -----o ---- o ----- (pole 1) -----o -----o ---- o ----- (pole 2) ^ | Two "throws" each. Chris _______________________________________________ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts