Not much, except that it provides handy
calibration/measurement points.
73, Dick, W1KSZ
On Sun, Oct 13, 2019, 12:46 PM Hal Murray wrote:
>
> dickw1...@gmail.com said:
> > provide frequencies at 72.5, 725 and 7,975 MHz that are
>
> What's interesting about 72.5, 725, or 7975 MHz?
>
>
> --
>
The eBay auction number : 223703183757
gb
Sent from iPad Air
> On Oct 13, 2019, at 5:07 PM, Gregory Beat wrote:
>
>
> Time Nuts —
>
> Used (surplus) ES-911/GPS/NTP units have appeared on eBay from an east coast
> reseller. These units were likely surplussed, due to 1024 week rollover
>
Time Nuts —
The ESE ES-911/GPS/NTP unit was specifically designed to meet the National
Emergency Number Association (NENA) Standard NENA-04-002 for a Public Safety
Answering Point (PSAP) Master Clock. It traditionally provides “Time
Synchronizing” all components of a PSAP.
==
Used (surplus)
dickw1...@gmail.com said:
> provide frequencies at 72.5, 725 and 7,975 MHz that are
What's interesting about 72.5, 725, or 7975 MHz?
--
These are my opinions. I hate spam.
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Didier has allowed .doc and .docx documents. I've uploaded Perrier's
.docx so the set is complete.
Don
On 2019-10-12 16:33, Perry Sandeen via time-nuts wrote:
Yo Bubba Dudes!,
For those who may be interested, I D/L djl's FA-2 manual and revised
both pictures and text.
Don said he would post it
I use a GPSDO as my lab
standard and as the reference
for my Freq Counters.
I have another "Box" I picked
up that will accept a 10 MHz
signal from my GPSDO and
provide frequencies at 72.5,
725 and 7,975 MHz that are
locked to the GPSDO.
After sufficient warm-up I
was surprised to see the FA-2
Hello: proportional controllers from the Old Country are also available
for around $15 on ebay. The one i have uses type K thermocouple.
Don
On 2019-10-12 18:13, Perry Sandeen via time-nuts wrote:
Yo Bubba Dudes!,
The suggestion was made to use a ebay item number 192112054053 heater
for this
I created a temperature test setup for my TCXOs. Relay control did not last
long because the relay was operating once a second or so and the Peltier
uses a lot of current. The relay contacts welded in a few hours. Luckily I
was watching when it happened. A PID controller running H bridges works a
No, the power switch turns off all power. See my post about the warm up
characteristics of the FA2 OCXO:
http://lists.febo.com/pipermail/time-nuts_lists.febo.com/2019-October/097803.html
---
>First, does the internal OCXO run when the power is turned off?
