RACAL 1992 oscillator: which one is the best ?

[IV3YNB]

Hi all,

I'm going to buy a RACAL DANA 1992 universal counter.
I've heard about the oscillator option: one is better than the other
but... which one is the best ?

I know about some option numbers: 04C, 04E and so on... which is the
best ? what are the differences between the single models ?

Thank you in advance for your help
Matteo - IV3YNB

 

[Peter Matler]

IV3YNB schrieb:

Hi all,

I'm going to buy a RACAL DANA 1992 universal counter.
I've heard about the oscillator option: one is better than the other
but... which one is the best ?

I know about some option numbers: 04C, 04E and so on... which is the
best ? what are the differences between the single models ?

Thank you in advance for your help
Matteo - IV3YNB

Depends on... but I 04E is the most stable oven; build into the 1992-02M
(military). Most of the military have 04E.

04T TCXO (3x10E-7/month; +-1x10E-6 between 0..40C)
04A Oven (<3x10E-9/day; +-3x10E-9/C between 0..45C; warmup 6 min to 1x10E-7)
04B Oven (<5x10E-10/day; +-6x10E-10/C between 0..45C; warmup 20 min to
1x10E-7))
04C ??? I don't know.
04E Oven (<5x10E-10/day; <7x10E-9 between 0..50C; warmup?)
04R Rubidium Modell, I have never seen...

See http://www.microlease.de/Static/Catalogue/Datasheets/Racal_1992.pdf

Peter