[time-nuts] RCC 8000
ernieperes at aol.com
ernieperes at aol.com
Sun Dec 30 12:43:51 EST 2007
Hi Rob,
Yes , I tried RadioClocks UK but no helping hand...they offered if I ship the unit back to the factory,
??????? they give a price for the conversion...../ assume to expensive /...
??????? I am living about 25km from DCF77 in Germany, so believe the receiver part is not a big deal,
??????? but the "code " is different then MSF60....
Rgds Ernie.
-----Original Message-----
From: Rob Kimberley <rk at timing-consultants.com>
To: 'Discussion of precise time and frequency measurement' <time-nuts at febo.com>
Sent: Sun, 30 Dec 2007 5:36 pm
Subject: Re: [time-nuts] RCC 8000
Made by Radio Code Clocks in UK (now called Time & Frequency Solutions
www.timefreq.com ).
MSF 60 KHz receiver. I'm sure they had DCF77 option.
Have you tried Googling it?
Rob Kimberley
-----Original Message-----
From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On
Behalf Of ernieperes at aol.com
Sent: 30 December 2007 13:58
To: time-nuts at febo.com
Subject: Re: [time-nuts] RCC 8000
Hi,
I am looking a description/manual for Radio Clock? type RCC 8000 receiver...
assume it is tuned ?60kHz ..... and should like to convert? to DCF
77......every advise is appreciated.
Rgds, Ernie
-----Original Message-----
From: Ulrich Bangert <df6jb at ulrich-bangert.de>
To: 'Discussion of precise time and frequency measurement'
<time-nuts at febo.com>
Sent: Sun, 23 Dec 2007 11:33 am
Subject: Re: [time-nuts] HP 5370B question
Bob,
just for fun I run the same test with my SR620 counter with results VERY
similar to your measurements. See the attached distribution.
Best regards
Ulrich Bangert
> -----Ursprungliche Nachricht-----
> Von: time-nuts-bounces at febo.com
> [mailto:time-nuts-bounces at febo.com] Im Auftrag von Mike Feher
> Gesendet: Samstag, 22. Dezember 2007 12:41
> An: 'Discussion of precise time and frequency measurement'
> Betreff: Re: [time-nuts] HP 5370B question
>
>
> Bob -
>
> With most counters, I have found that running them at
> slightly less than 10 MHz gives you an extra displayed digit
> of resolution. If the "1" out of 10 MHz were to be displayed,
> it would take up one more digit in the MSD position, leaving
> you one less in the LSD position. Since the numbers are so
> close anyway, if measuring for stability, I personally would
> prefer that extra digit in the LSD position. Regards - Mike
>
>
>
> Mike B. Feher, N4FS
> 89 Arnold Blvd.
> Howell, NJ, 07731
> 732-886-5960
>
>
> -----Original Message-----
> From: time-nuts-bounces at febo.com
> [mailto:time-nuts-bounces at febo.com] On Behalf Of Robert E. Martinson
> Sent: Saturday, December 22, 2007 1:57 AM
> To: 'Discussion of precise time and frequency measurement'
> Subject: Re: [time-nuts] HP 5370B question
>
> I ran my 5370B for one hour, counting its own reference with
> a one second gate. The summary of the results are:
>
> min 9999999.99650 Hz
> max 9999999.99963 Hz
> avg 9999999.99796 Hz
> median 9999999.99787 Hz
>
> Per the manual's Performance Test 5 (page 4-12) the spec is
> +/- 0.005 Hz. It would be nice if my average was
> 10,000,000.000 HZ but?? From a Time-nuts thread of several
> months ago, the adjustment for this result is very touchy and
> it's likely you will make the result worse rather then
> better. Since mine is in spec, I'll leave it alone.
>
> I have sent the graphical & raw data to Corby, if anybody
> else is interested please advise me of your email address.
>
> Regards,
> Bob Martinson, N1VQR
>
>
>
>
> -----Original Message-----
> From: time-nuts-bounces at febo.com
> [mailto:time-nuts-bounces at febo.com] On Behalf > Of corby d
> dawson
> Sent: Wednesday, December 19, 2007 2:15 PM
> To: time-nuts at febo.com
> Subject: [time-nuts] HP 5370B question
>
>
> Hi,
>
> Could a few of the 5370B owners connect the counters
> reference output to its counting input jack and with a 1
> second gate let me know what the last 2 digits are doing?
>
> An earlier post implied that the last couple digits will
> wander around due to the way its designed.
>
> I'd like to know what a couple different counters show to see
> if that is indeed true!
>
> Thanks,
>
> Corby Dawson
>
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