I got a Halcyon OFS-1 a while back, and found it was virtually
impossible to use here in Denmark, which seems to be located too far
away from the Allouis (162 kHz) or Droitwich (198 kHz) transmitter
sites. One major design flaw of the OFS-1 is the digital divider used to
divide an analog signal.
You can find more information about an experimental modification to
increase the robustness and usefulness of the OFS-1 here:
http://dabbledoo.weebly.com/halcyon-ofs-1.html
Best regards
Ole
Den 19-06-2017 kl. 17:15 skrev Clint Jay:
Mine is somewhat different to that model, the case is the same as the
leftmost one but the board is quite different to the middle picture.
I'll post some links to pictures of the internals and start drawing out the
circuit over the coming few days.
On 19 June 2017 at 14:29, paul swed <[email protected]> wrote:
Great pix can be found here and absolutely can easily be reverse
engineered.
https://www.vintage-radio.net/forum/showthread.php?t=97999
Very simple straight forward design.
Regards
Paul
WB8TSL
On Mon, Jun 19, 2017 at 9:25 AM, paul swed <[email protected]> wrote:
Hello to the group. I suspect I will never see such a unit in the states.
Also it wouldn't be useful.
But that said its sounds as though its a traditional simple receiver that
should be able to be reverse engineered. At least for the signal and
locking chain. If a micro is involved then things get fuzzy fast. Anyhow
good luck with you digging in.
Regards
Paul
WB8TSL
On Mon, Jun 19, 2017 at 8:27 AM, Clint Jay <[email protected]> wrote:
Thank you Stephen, Nigel, I'll take some pictures of the board in my
OFS-1
but it doesn't match any of the pictures I've tracked down so far.
Interesting that the board mounted on the rear of the enclosure with the
trimmers appears to be Vero or perf board of some description...
On 19 June 2017 at 11:54, Stephen Tompsett (G8LYB) <
[email protected]>
wrote:
I have a little Halcyon information I managed to find a few years ago
when I acquired a couple of PFS units. It includes a brief document on
OFS alignment.
I'll mail the documentation to you directly...
On 19/06/2017 10:17, Clint Jay wrote:
I have been given a Halcyon Electronics OFS1 standard which seems to
work,
it's a version that has 198KHz and 162KHz selector on the fron and
after
a
reasonable period of time it displays 'lock' and gives a nicely
stable
1,10
and 10 MHz output on the front panel BNCs, (I know, it should be 1,5
and
10MHz out, read on)
Does anyone know of a PDF manual? This version has two KHz crystals
inside
it and I'd like to see how/if it's been modified so a manual with a
schematic would be even more useful.
--
Stephen Tompsett (G8LYB)
Tel: 01788 578940
Mob: 07956 855816
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--
Clint.
*No trees were harmed in the sending of this mail. However, a large
number
of electrons were greatly inconvenienced.*
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