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Re: XM1 keps and footprint



Maybe that explains why I couldn't locate the signal. From FN44rn my AZ-
199.95 and EL- 36.60 provided no signal I could detect. I was looking for
the 2343.91mHz signal. Since my downconverted freq is 145 (for 2401 signal)
I looked at 77.91 (+\- 100kHz) but came up empty.

Have I overlooked something? Is anyone receiving these signals? What are
your operating conditions?

I would think, if they can be found, these signals would be great for
aligning the antennas accurately...

----- Original Message -----
From: Howie DeFelice <hdefelice@petrexintl.com>
To: <amsat-bb@AMSAT.Org>
Sent: Monday, July 09, 2001 8:12 PM
Subject: Re: [amsat-bb] XM1 keps and footprint


> Although I haven't seen the published footprint, I tend to believe the
> footprint for "Rock" and "Roll" are beam formed for coverage in CONUS. It
> also may be hard to monitor these signals on a narrowband receiver. I
think
> they are transmitting MCPC (multiple channels per carrier) digital music
> using QPSK modulation, but this is speculation because I haven't been able
> to find any published information yet.
>
> Howie
> AB2S
>
> ----
> Via the amsat-bb mailing list at AMSAT.ORG courtesy of AMSAT-NA.
> To unsubscribe, send "unsubscribe amsat-bb" to Majordomo@amsat.org
>

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