Hi Paul,
I only ask as you seem to track this thing the best here on time-nuts,
as far as I have seen, such that it is your emails that keeps me best up
to date with the progress.
Cheers,
Magnus
On 2020-08-05 19:21, paul swed wrote:
> Hi Magnus been a while since have emailed.
> Its one site tha
On 8/5/20 4:18 PM, Mark Haun wrote:
I wonder if someone maintains a directory of ionosondes. Seems like
waste/duplication to have every interested party set up their own,
instead of piggy-backing on what's already out there. There's also the
pollution factor---one certainly hears them often eno
One thing I've noticed in old mystery oscillators and other RF modules,
is that they often use 3-terminal or other regulators inside. If you
gradually increase the supply voltage, the current goes up rapidly, then
levels off as sufficient overhead is reached. That gives some idea of
where they
Hi
In that era, 12 and 24V are the two candidate supply voltages. Assuming there
are no
wires to the other pins, no need to supply power to them.
What to do:
Try 12V and see what happens. If you get a stable output at > +7 dbm and good
( = low ) harmonics. That’s the supply. If not, slowly in
Hello Time-Nuts,
OK, have one for the old timers out there. Does anyone have pinout or
voltage input information on a Brightline oscillator? This company
was founded by Charles S. Stone in Cedar Park, TX. His company was
soon purchased by Frequency Electronics and he went to work for them.
The
We seem to be going through another stage in our technological evolution
right now as far as redundancy goes.
To explain what I mean:
A long time ago things were so unreliable that everyone knew that you
needed two systems, even if one was the watch in your pocket and a compass
and sextant for PN
I wonder if someone maintains a directory of ionosondes. Seems like
waste/duplication to have every interested party set up their own,
instead of piggy-backing on what's already out there. There's also the
pollution factor---one certainly hears them often enough while operating
narrowband on shor
I was researching potential calibration sources for our orbiting
receivers (where we need to line up GNSS signals with HF signals) and
after looking at the usual suspects like WWV, we came across another one.
Ionosondes - they're all over the place, and these days, they're fairly
accurately ti
Jim
Thanks for the insights. Oh I am not selling it for emp. I am simply saying
no would be general wants a rusty old steel tower as a career booster. I
remember when LORAN C was shut down the president said he was saving $36M a
year. Thats drop in the old bucket. I also remember the LORAN C antenn
On 8/5/20 12:40 PM, Tom Knox wrote:
Hi Paul and Magnus;
Not to mention one space EMP would kill all the Sat systems, where a ground
base system even if affected would be easy to access for repair.
The vulnerability of GNSS systems to EMP attacks is not all that high -
GPS is, after all, a DoD
Hi Paul and Magnus;
Not to mention one space EMP would kill all the Sat systems, where a ground
base system even if affected would be easy to access for repair.
Cheers;
Tom Knox
act...@hotmail.com
"Peace is not the absence of violence, but the presence of Justice" Both MLK
and Albert Einstein
Luciano,
I agree entirely!
I like the motto "do no harm"!
When I try a mod such as replacing the dead op amp on the A9 board. I
make before and after tests to make sure no degradation has occurred.
Since this means parts in 10 -14th AD at 128 Seconds most don't have the
capability. However a lot
Hi Magnus been a while since have emailed.
Its one site that was a test transmitter. Its in New Jersey, USA.
The goal of the testing I believe is to establish the viability of an
alternate PNT reference to GPS. Additionally the ability to communicate
some level of message broadcast. This should be
Hi,
Do you know that they would do test with two actual transmitter sites?
Cheers,
Magnus
On 2020-08-05 16:00, paul swed wrote:
> Hello to fellow time nuts.
> Warm up those old Austrons. eLORAN out of New Jersey has been on the air
> intermittently prior to a test run next week. Due to the storm
Hello to fellow time nuts.
Warm up those old Austrons. eLORAN out of New Jersey has been on the air
intermittently prior to a test run next week. Due to the storm they have
lost power and should have it back today or tomorrow.
The intention will be on the air operation till the 20th. That's a long
Hi
> On Aug 5, 2020, at 2:55 AM, tim...@timeok.it wrote:
>
>
> I would like to share with you my thoughts on two important points that
> concern a little all attempts to modify and upgrade the equipment.
>
> In general I am very reluctant to modify both the electrically and
> mechanically
10 years ago I started a project to try to improve on the 5065A by buying an
Optical Unit in Europe and only use the temperature control boards. Temperature
control with a fan and aging with a DAC based on 20 year experience with my
FRK. Age, move and Macular hole in the left eye ended that pro
tim...@timeok.it writes:
> Another important point is that of the certainty of the results
> of a change. I mean that most hobbyists who have a 5065A, including
> me, do not have the opportunity to measure the proposed improvement
> effects, first of all because they do not have a referen
I would like to share with you my thoughts on two important points that
concern a little all attempts to modify and upgrade the equipment.
In general I am very reluctant to modify both the electrically and
mechanically, in this case, the HP5065A. Modifying, even completely a board, I
agr
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