[time-nuts] WWVB/Anthorn Re: time-nuts Digest, Vol 195, Issue 27

[paul swed]

Andre you can add layers of litz wire. You actually have litz wire? Thats
hard to find these days. But it most likely will need to be more than a few
layers. I would slip to small pieces of cardboard on both sides of the
existing coil (glue in place) and then fill with the new wire. Check the L
every 5 layers. May guess you need 10.
But what you want to do can be done.
Regards
Paul
WB8TSL

On Sun, Oct 18, 2020 at 5:54 AM Andre <Andre at lanoe.net> wrote:

> Hi folks.
> Just a quick question, but I found a small AM/FM radio here (50p!) with a
> tiny ferrite rod.
> Wonder what it uses to set the frequency for AM range?
> Surely not a tuning diode like MV1404 as these are incredibly expen$ive.
> Was wondering about pulling the rod and modifying it for WWVB as my
> existing radio clock
> works and it would be a shame to mess that up.
> Should be easy enough as I have (somewhere!) a working LCR meter so can
> wind a suitable
> winding over the existing one if its too far off or simply add a couple of
> layers of Litz wire
> to approximate the required 65 kHz WWVB.
> I'd also need to locate a 65 kHz quartz crystal for the XT2 position.
> External antenna might be better here as it would be very weak indeed
> being from the USA
> but there's a couple of methods I can use to improve this like using an
> optical relay from
> multiple locations at equidistant points.
> thanks! Andre
>
> ________________________________________
> From: time-nuts <time-nuts-bounces at lists.febo.com> on behalf of
> time-nuts-request at lists.febo.com <time-nuts-request at lists.febo.com>
> Sent: 17 October 2020 23:02
> Teference to match the DUT.  But if you do want to mix both the REF and
> DUT channels, wouldn't it be better to use a single source to drive both
> mixers?
> >
> > John
> > ----
> >
> > On 10/17/20 8:59 AM, Gerhard Hoffmann wrote:
> >> I'm trying to make a quick frequency extender for a timepod.
> >> MCL PSC2-1 power divider, 2* SRA-1  7 dBm ring mixer, 2 DIL 80
> MHz-oscillators
>
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