wb0...@yahoo.com said:
> I built a small CMOS divider connected to the UT+ 1 PPS output...
What do you mean by "CMOS"? Old 4000 series parts or HC or ... ?
> Here's the problem: my counts vary significantly (+/- 1 or more) from
> cycle to cycle, which is much higher than expected based on 5
Boy you are spot on about what "damage" sales guys can do.
The original OCXO spec is x10 better than the 16Hz I get with the DAC at the
limit.
Thanks.
-Brian, WA1ZMS/4
iPhone
> On May 26, 2014, at 6:25 PM, Bob Camp wrote:
>
> Hi
>
>
>> On May 26, 2014, at 5:54 PM, Brian, WA1ZMS wrote:
>>
I'm trying (in lieu of setting up a GPSDO) to use the 1 PPS output of a
Motorola ONCORE UT+ module to do a one-time reference oscillator adjustment of
my frequency counter (setting its reference oscillator which has a small
trimmer).
My counter has a "totalize" mode where it counts pulses fro
http://www.amtronix.com/
Joe Gray
W5JG
On Mon, May 26, 2014 at 2:31 PM, Brian, WA1ZMS wrote:
> I am trying to repair my HP-8920 RF Com test set since its internal
>
> 10MHz OCXO has aged way beyond the DAC EFC cal range. (There
>
> is no trimmer cap to allow adjustment.)
>
>
>
> The OCXO is 10
Hi
On May 26, 2014, at 5:54 PM, Brian, WA1ZMS wrote:
> My high-spec ULN Wenzels have trimmers.
>
I doubt that HP has put a trimmer OCOX into a new design since the 10811 was
new. The Wentzel ULN’s are *not* high volume parts.
> This this thing is 16Hz high at 10MHz so it's way off.
16 Hz
My high-spec ULN Wenzels have trimmers.
This this thing is 16Hz high at 10MHz so it's way off. Must be sudden failure.
If I use an external ref the test set is fine. OK for lab use. But a pain when
out working in the field on ham repeaters. It may be an OEM number. At work we
noticed quite a
Hi
On May 26, 2014, at 4:31 PM, Brian, WA1ZMS wrote:
> I am trying to repair my HP-8920 RF Com test set since its internal
>
> 10MHz OCXO has aged way beyond the DAC EFC cal range.
How far out is it?
> (There
>
> is no trimmer cap to allow adjustment.)
Trimmer caps went out a long time ago
I am trying to repair my HP-8920 RF Com test set since its internal
10MHz OCXO has aged way beyond the DAC EFC cal range. (There
is no trimmer cap to allow adjustment.)
The OCXO is 10MHz and is marked PTI XO1145.
PTI no longer lists nor seems to sell this OCXO.
Has anyone seen or have a
Hi
Here’s my guess:
Powers of two sound fine. Anything more than that is getting into the “waste of
bits” area.
Fully silly range might be +32 to -32. On a practical basis, some of that range
is not useful (+32 for example).
Pick a number at one end or the other (zero or 255 or ...) for “I d
On 5/26/14, 11:13 AM, Magnus Danielson wrote:
Hi Jim,
On 05/26/2014 07:43 PM, Jim Lux wrote:
I'm in the middle of implementing a lightweight time distribution system
using SpaceWire (a fast point to point serial link with simple routers
to build networks).
SpaceWire provides a special token ca
Hi Jim,
On 05/26/2014 07:43 PM, Jim Lux wrote:
I'm in the middle of implementing a lightweight time distribution system
using SpaceWire (a fast point to point serial link with simple routers
to build networks).
SpaceWire provides a special token called a timecode which propagates
from a "tick s
I'm in the middle of implementing a lightweight time distribution system
using SpaceWire (a fast point to point serial link with simple routers
to build networks).
SpaceWire provides a special token called a timecode which propagates
from a "tick source" to various nodes, but that just provide
> Does anyone have experience with the Synergy SSR-6Tr
> and the fairly recent Lotus based M12M.
Thomas,
I've also recently discovered that Furuno makes a GPS module that is M12
compatible (size, power, communication)...
The advantage of the newest model (GT-8736) is it has GPS + SBAS + GLONASS
13 matches
Mail list logo
