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

[Andre]

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