Signal generator and hp frequency counter

[kaos513]

Hello guys I'm a bit confused I have a hp frequency counter and I hooked it up to my hp signal generator Im getting tone, which means I'm under 10khz. Reads 91.0000 ect... . Can't understand which is if off calibration generator or frequency counter thanks.

 

[Tallman]

A man who wear two wristwatches never really knows what time it is.
One or both of those will have a 10MHz bnc output port. borrow a frequency counter from some one and check that port on both. Or spend the bucks and have the frequency counter calibrated.

 

[nomadradio]

Ah, what kind of signal generator?

And where did you hook the counter on it?

73

 

[kaos513]

HP single generator 8656b And Hp53131A frequecy counter 250 mhz hooked to channel 1 on frequency counter

 

[Tallman]

The manual says it is only good to 225MHz unless you have some options installed.
Just in case you don't have a manual here is a link to the one I read.
https://www.manualslib.com/manual/529224/Hp-53131a.html?page=18#manual

 

[kaos513]

The manual says it is only good to 225MHz unless you have some options installed.
Just in case you don't have a manual here is a link to the one I read.
https://www.manualslib.com/manual/529224/Hp-53131a.html?page=18#manual

 

[Robb]

Usually, on the back of the counter it will tell you if any options have been installed. Looks like it can do a ghz or more; but it should also say if it has a TCXO or an OCXO.

Got a pic of the sig gen, because I'd be willing to trust that counter, it is a pretty solid piece.

 

[kaos513]

Will upload the pictures of my HP signal generator soon thanks

 

[kaos513]

Below is the pic

 

[kaos513]

Yes or no ?

 

[Robb]

Yeah, its an xlnt piece too.
Guess you need to get them calibrated . . .

 

[kaos513]

confused is it rf out to counter or is it modulation out to counter ?

 

[Tallman]

confused is it rf out to counter or is it modulation out to counter ?

Never connect it directly to the transmission line. It will blow up the input circuits making it useless.
It is a Frequency Counter. Will read the dead carrier frequency and the audio if it is demodulated. It is a good one to have. I bought one from a salvage company and had to repair it and get it calibrated.

 

[Robb]

Mike explains the problem and gives a solid yet inexpensive solution TO DO THE JOB RIGHT





https://www.ebay.com/itm/0-1-2000MHz-30dB-Low-Noise-RF-Amplifier-LNA-Broadband-Module-Receiver-A2P1/112516459571?_trkparms=aid=555018&algo=PL.SIM&ao=1&asc=20131003132420&meid=a4727ca35f6f4a6e856b91ed0e70627f&pid=100005&rk=2&rkt=12&mehot=pp&sd=272914444409&itm=112516459571&_trksid=p2047675.c100005.m1851



https://www.ebay.com/itm/12-SMA-Mal...409329?hash=item5d840d18b1:g:7eUAAOSwGBdarLlk



https://www.ebay.com/itm/BNC-female-jack-to-SMA-male-plug-RF-connector-straight-gold-plating-Adapter-RS/113649951313?hash=item1a7610a251&enc=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&checksum=113649951313a52b55f51db441c9bde69b291037d656&autorefresh=true

Now, add a 9v batter clip and a 9v battery and then you use you O=scope probe on the oscillator circuits and trigger your freq counter without loading the circuit and getting a FALSE reading.

 

[kaos513]

I have that as well don't know how that will help with my signal generator.