Re: [HCDX]: Vatican Radio on 527 kHz
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Re: [HCDX]: Vatican Radio on 527 kHz

This is just a guess, since I live several thousand miles from the station.  If
they're only using USB+carrier on 527, it may be to avoid interfering with
maritime services on or around 500 kHz.  500 kHz until recently was used by
ships in distress to send S-O-S, and some coastal stations operate (operated?)
between 510 and 526 for more routine cw traffic.

> Aart Rouw wrote:
> Dear fellow DX-ers,
> This is not top-DX but a simple question that bothered me for a while :
> With a certain regularity I can receive Vatican Radio on 527 kHz. At my QTH,
> reception is often spoilt by splashes from Switzerland on nearby 531. Trying
> to get a clearer signal by listening in LSB mode, I have noticed that the LSB
> signal is apparently absent (or considerably reduced). USB is OK. Does someone
> know if indeed Vatican Radio transmits in a carrier + USB mode on this
> frequency ? If so, why ? (it seems more logical to take a carrier + LSB mode
> to avoid interference from 531).
> Regards,
> Aart Rouw
> Bühl, Germany
> AR7030 + 15m longwire
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