TA-0371: Racal Dana 1992 Frequency Counter 1.3 GHz

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TA-0371: Racal Dana 1992 Frequency Counter 1.3 GHz - Calibration

Рет қаралды 2,838

10 ай бұрын

The Racal Dana 1992 Teardown Calibration do and don't.
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50_Ohms-BNC: go.tonyalbus.com/50A
50_Ohms-BNC-inline: go.tonyalbus.com/50B1
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#1992 #racal #racaldana

Пікірлер: 43

@timgraham8975 10 ай бұрын

Wow makes me feel old, I can remember using them when they were new! Were the cat’s meow back in the day.

@TonyAlbus 10 ай бұрын

Cool!, would love to have looked at then new... they just look so cool!

@TheDefpom 10 ай бұрын

Yes indeed I did some videos on fixing these units, I also did one on replacing the TCXO with a better one, I made my own.

@TonyAlbus 10 ай бұрын

Hi Scott, yes its a simple improvement for a lot of joy! nice!

@tedcuff9155 6 ай бұрын

I used Scott's video to replace the switches in mine. I have 2 of them with the military ocxo and they are rock solid.

@grerlab2777 10 ай бұрын

Always interesting to follow... Nice video... Thanks Tony...✌

@TonyAlbus 10 ай бұрын

Thanks Grer!

@Stephen_Heathcote 10 ай бұрын

Excellent! Mine is still going strong. Have the TCXO option on mine, but have all my instruments on 10mhz ref. Even on the TCXO it tracks well, but has to be on for around 2 hours to become stable, hence the use of the external ref :)

@TonyAlbus 10 ай бұрын

Great Stephen, cool you have the TCXO ! yes hopefully it will run for years.

@davidv1289 10 ай бұрын

Very nice counter, Tony. The TI A ---> B button is Time Interval A to B for measuring timing or phase relationships. That and ratio measurement is what makes it a "universal" counter. I have been looking for one to repair, but they are very popular (aka expensive). Regards, David

@TonyAlbus 10 ай бұрын

Thanks David.. good info , i never looked into that and its great to know now! yes still very popular :)

@davidbrowne1588 10 ай бұрын

Hi Tony I have one of these, I got it some years ago from eBay,it was sold as not working, But worked fine, I have now changed all of the switches, as some of mine were hard, It was made for the MOD, so all possible options the best TCXO is fitted, but like you I am running from Ext, GPS ref, I was the one that asked about a prescaler, as you are going to do a video on one, soon I hope, I also had to replace the resistors for the 50ohm load, I don't know if it was me that blown them,😢 A great counter from the 1980, My not as fast as some of the new hp counters, but very happy Thanks Dave 2E0DMB

@TonyAlbus 10 ай бұрын

Hi David! wow you have a very cool version with all options. sorry i forgot about the prescaler, i will put it on my list again.

@davidbrowne1588 10 ай бұрын

@@TonyAlbus thanks Dave

@gregreynolds5686 10 ай бұрын

I always think the controls and displays are really nice on later Racal kit - I used to have a signal generator that was lovely to use.

@TonyAlbus 10 ай бұрын

Thanks! yes agree, i somehow just like the design.

@johnwest7993 10 ай бұрын

I'm a sucker for any counter with 9 or more 7-segment LED displays. They are so easy to read, and they look almost as cool as Nixie's!

@TonyAlbus 10 ай бұрын

Oh yes :) here too, can't have too many counter :)

@zdzisiek1979 10 ай бұрын

Fajny miernik :)

@TonyAlbus 10 ай бұрын

Thank you! yes happy man here :)

@User-rm9cw Ай бұрын

Sid with Racal Dana! Great! Save the Sid button here 👇

@TonyAlbus Ай бұрын

Thank you!

@User-rm9cw 18 күн бұрын

@@TonyAlbus you're welcome! Have a great day! Respect and best wishes ;)

@marcinmakan9710 7 ай бұрын

Hello, what is the maximum voltage (or amplitude) of a signal that the BGT7TBL FA-3 (or FA-2) frequency counter can handle? I would appreciate your support a lot!

@TonyAlbus 7 ай бұрын

the manual says the power measure can go upto +20dBm , so it can take that for sure. no other specs found so far.

@TheDefpom 10 ай бұрын

Yeah those big caps might need doing, I found about half of them tended to be bad.

@TonyAlbus 10 ай бұрын

Yes indeed if they are also from the 80 .. then they have a nice age by now :)

@piotr-Garou 10 ай бұрын

👍

@TonyAlbus 10 ай бұрын

Thank you!

@CasualInventor 10 ай бұрын

Regarding the big capacitor at 13:10, I also found a couple of these peculiar caps in my Racal-Dana 9906 UTC. They checked out OK but I was a bit puzzled by the six uniform indentations around the middle. Do you know why they have these dents? Is it a factory tuning method to get the right capacitance? (Doubtful since they only seem to be bulk decoupling caps). Would like to know what you think about it. Love the Racal-Dana systems though - really nice to work on and quite hackable.

@piotr-Garou 10 ай бұрын

Cześć. Tak wykonane kondensatory spełniają wymagania przemysłowe lub wojskowe. Posiadają, wykonane przez producenta, wgniecenia technologiczne. Ich zadaniem jest dociśnięcie zwijki kondensatora w taki sposób, aby pod wpływem drgań, nie przemieszczała się wewnątrz obudowy. Mają też dużo większe gabaryty, ponieważ wykonane są ze znacznie grubszej folii, stanowiącej okładziny kondensatora, oraz dielektryk. I przez to powinny być długowieczne ;)

@TonyAlbus 10 ай бұрын

Looking at Piotr answer we could have let them stay in..as they are military long lasting onces ..

@TonyAlbus 10 ай бұрын

@@piotr-Garou Thanks you! nice information!

@CasualInventor 10 ай бұрын

@@piotr-Garou To fascynujące. Dzięki!

@Runco990 10 ай бұрын

I was about as hot for one of these as I am for Russian Redheads!!! 😍 UNTIL I got my 12 digit resolution HP counter that was way cheaper AND had all working buttons. But for the right price, (NOT possible on ebay) I'd absolutely take one!

@TonyAlbus 10 ай бұрын

Hi, i am more hot for latins :) but love this counter. HP is very nice too, had one upto 1200 MHz but was LCD no backlight , not always easy to read.

@MarcelHuguenin 10 ай бұрын

Hey Tony! Mooi exemplaar wederom toegevoegd aan de collectie. Uit hoeveel van dit soort mooie vintage dedicated counters bestaat deze inmiddels?

@TonyAlbus 10 ай бұрын

Hi Marcel, dank je, ja erg blij mee. ik heb geen idee hoeveel, maar niet genoeg :)

@MarcelHuguenin 10 ай бұрын

@@TonyAlbus 😂

@MarioRiesebeek 10 ай бұрын

Mooie counter! Ik heb de 1998 met militaire tcxo. Deze heeft ook een gatetijd van 20 seconden door de up button drie seconden in te houden. Erg benieuwd of deze dat ook heeft

@TonyAlbus 10 ай бұрын

Hallo Mario, ja de 1998 is ook erg mooi, die komt ook nog op video :) oh dat ga ik eens proberen of deze dat ook heeft, dank je voor de tip!

@davidbrowne1588 4 ай бұрын

I just did a post and it has gone ? anyway i have just got a S/H Prescaler XP12-10, 12V, input frequency range 50MHz - 12.5GHz it is a true divide-by-10 prescaler i have tested it with my 1992 counter and it works great very sensitive, only tested to 4.4GHZ as that is all my gen will go up to, so now my 1992 will do all that i need Thanks Dave Browne 2E0DMB

@TonyAlbus 4 ай бұрын

Thanks David, can you send me a link by email of that divider, very interesting. (youtube does not allow links in comments, and removes, even if i allow all) find my email in the about