• You can now help support WorldwideDX when you shop on Amazon at no additional cost to you! Simply follow this Shop on Amazon link first and a portion of any purchase is sent to WorldwideDX to help with site costs.

Sencore CB42 CB Analyzer calibration?

You know most frequency counters have a 10.000 MHz outlet on the back of the cabinet. I have a cheap frequency counter that has the 10.000 MHz outlet on the back. I opened it up just to inspect it since it was a eBay purchase. The 10 MHz is a top quality reference oscillator in a temperature controlled oven. I took it to a local calibration lab and had it all checked out. No adjustment was required since it met the manufacturer specifications.
I asked if there was any error in the read out and they said it was less than .5 Hz difference. (More warm up time?)
Close enough for any standard in my book.
If you use any item for a transfer standard you have to have calibrated twice as often as the items you calibrate. I guess that's a mil-spec thing.
I did a lot of calibration work in the military and it seemed like every eight weeks we took my station apart and down to the base calibration shop.

I have the B&K precision 1040 and the 2040 units(Calibrated) and like that setup. I'm still making cables to hook it all together.


That 10.0 MHz output from your counter can be zero beat with WWV to calibrate the counter yourself.
 
The cb42 came with most of its original test cables....the only one missing is the one I need....bnc to bnc.....so I can plug the cb42 rf generator into my bk 1801 freq counter.

Believe it or not Radio Shack actually still sells those. I bought three of them longer than I needed cut them in half and put whatever connectors I needed for that hook up. BNC to PL-259, BNC to Banana, BNC to RCA plug. I'm still making cables to have it all hooked up and so I don't have to do any cable swaps.
 
Interestied in knowing what counter you have. I been looking myself for one wih a 10 mhz port. All my counters are a bit old. B7K 1801, Heathkit IM 2410. I have a Motorola Auto tune deviation/ frequency counter. Most of the time with commercial and Ham gear I use my IRF 1200s and my HP 8640B.
Great setup for CB servicing. I have 3 2040's here in the shop.


I'm sorry I took so long to get back on this. I uploaded a photo of the frequency counter that has the 10 MHz port on the back. This is a nice single purpose piece of test equipment. Stable as a rock and the drift of the Galaxy radios is very apparent when you are doing the alignment.
 

Attachments

  • DSC04860.JPG
    DSC04860.JPG
    2 MB · Views: 27
Hey folks...Im sure this is the wrong place to ask but....Is there nothing like the sencore cb42 currently on the market. ..a all in one type system?....thanks
 
I'm sorry I took so long to get back on this. I uploaded a photo of the frequency counter that has the 10 MHz port on the back. This is a nice single purpose piece of test equipment. Stable as a rock and the drift of the Galaxy radios is very apparent when you are doing the alignment.
Nice looking counter. May have to find one like this.

Hey folks...Im sure this is the wrong place to ask but....Is there nothing like the sencore cb42 currently on the market. ..a all in one type system?....thanks
Sorry there is not. There are however several units built for Cb work. But nothing really on the market aimed towards it now.

I have 3 2040's, a CB42, IFR 1200S, HP 8640b.
The IFR was over 9K new. I paid 100 bucks for the HP and repaired it.
 
Hey folks...Im sure this is the wrong place to ask but....Is there nothing like the sencore cb42 currently on the market. ..a all in one type system?....thanks
There is nothing for sale currently that is CB only test equipment. If you can find B&K Precision 1040 and a 2040 the two together make an all in one test center. Finding ones that work will be hard and expensive. I have over $400.00 tied up in the two I have and they are calibrated. But they did not work when I got them. There is lots of test equipment out there that is not worth the effort to put in the trash.
 

dxChat
Help Users
  • No one is chatting at the moment.
  • @ Wildcat27:
    Hello I have a old school 2950 receives great on all modes and transmits great on AM but no transmit on SSB. Does anyone have any idea?
  • @ ButtFuzz:
    Good evening from Sunny Salem! What’s shaking?
  • dxBot:
    63Sprint has left the room.