[time-nuts] HP 3586B Selective Level Meter

[shalimr9 at gmail.com]

Sorry for the triplicate message before, it looks like my new shiny phone  
is sending messages before I am finished...

The 3586 is a very nice machine. Make sure you have Option 003 if you get  
an "A" or a "B" and you intend to use it for voice or digital data that  
requires 3kHz bandwidth.
I paid $90 for mine a while back, and while it was broken, it was a  
relatively simple fix.
I have little hope of such a good deal again.

Didier KO4BB

On , Tom Holmes <tholmes at woh.rr.com> wrote:
> For what it's worth, I was at Fair Radio in Lima, OH on Thursday, and they

> had three of the 600 ohm 'B' models on the floor. Don't know the condition

> or the asking price, but if you are interested you should be able to get  
> the

> contact info via Google. They have had these boxes for quite a while as  
> they

> were there on my last visit about three years ago, so they might be

> interested in making them go away.



> Tom Holmes, N8ZM

> Tipp City, OH

> EM79





> > -----Original Message-----

> > From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On

> > Behalf Of Robert Benward

> > Sent: Saturday, July 28, 2012 6:40 PM

> > To: Discussion of precise time and frequency measurement

> > Subject: Re: [time-nuts] HP 3586B Selective Level Meter

> >

> > Chuck,

> > Got two of these guys, the "B" and the "C". The C is the desirable one,

> 50ohms,

> > but you will pay about three times the price. Use the adapter, it's

> > $16 from the link below, it just isn't worth taking apart. Also, you  
> will

> need a

> > 50ohm BNC feed thru termination, then set the front panel to 10Kohm  
> input.

> That

> > will get you back to a 50 ohm input. Then you need to add approx 1.76dB

> to

> > correct the display for the change from 75ohms to 50ohms.

> > You can use the display offset function. Assuming this a fancy

> voltmeter,

> > note that for 0dBm in a 75 ohm system you need 274mV at the terminals.

> 0dBm

> > in a 50 ohm system can only provide 224mV, and thus will read -1.76dBm.

> > Thus add 1.76dBm to correct the display.

> >

> > Impedance 50 75 75

> > Voltage 0.224 0.224 0.274

> > Watts 0.001 0.001 0.001

> > dBm 0.000 -1.761 0.000

> >

> >

> >

> >

> > Good luck

> > Bob

> >

> >

> > http://www.milestek.com/s-147-trompeter-connectors.aspx

> >

> >

> > ----- Original Message -----

> > From: "Chuck Forsberg WA7KGX N2469R" caf at omen.com>

> > To: "time-nuts" time-nuts at febo.com>

> > Sent: Thursday, July 19, 2012 2:22 AM

> > Subject: [time-nuts] HP 3586B Selective Level Meter

> >

> >

> > > Got one of these massive (by today's standards) beasts the other day.

> > > It has the option 003. Quite the light show when it powers up.

> > >

> > > I have its external reference daisy chained with a radio and two other

> > > instruments sucking 10 MHz from my Thunderbolt.

> > >

> > > I have not decided what to do with the AT&T front panel input.

> > > Should I get a BNC adapter for it? Or replace it with a BNC

> > > connector?

> > >

> > > --

> > > Chuck Forsberg WA7KGX N2469R caf at omen.com www.omen.com

> > > Developer of Industrial ZMODEM(Tm) for Embedded Applications

> > > Omen Technology Inc "The High Reliability Software"

> > > 10255 NW Old Cornelius Pass Portland OR 97231 503-614-0430

> > >

> > >

> > >

> > >

> >

> >

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