I've pondered if IRIG modulated on 10MHz would make enough sense to
work, or if the modulation would end up degrading the 10MHz enough to no
longer be a good reference.
I've done similar things, and yes, it can work.
AM has the least effect, but IRIG has a 3:1 voltage amplitude range,
so the signal power range is 9 dB, which may or may not matter in
your application.
One can also use phase modulation and a Costas-loop demodulator.
Joe Gwinn
On Sun, 29 Aug 2021 03:30:23 -0400, time-nuts-request@lists.febo.com
wrote:
Re: time-nuts Digest, Vol 208, Issue 23 (Msg 10)
> Date: Sun, 29 Aug 2021 14:33:24 +1000
> From: Julien Goodwin <time-nuts@studio442.com.au>
> Subject: [time-nuts] Re: of possible interest
> To: time-nuts@lists.febo.com
>
> On 21/3/20 6:07 am, djl wrote:
>>
>> https://www.sv1afn.com/en/products/vhf-uhf-triplexer-1.html
>>
>> 10 mhz and uhf/vhf on same cable.
>
> I've pondered if IRIG modulated on 10MHz would make enough sense to
> work, or if the modulation would end up degrading the 10MHz enough to no
> longer be a good reference.
I've done similar things, and yes, it can work.
AM has the least effect, but IRIG has a 3:1 voltage amplitude range,
so the signal power range is 9 dB, which may or may not matter in
your application.
One can also use phase modulation and a Costas-loop demodulator.
Joe Gwinn
