[amsat-bb] PEHEUNSAT-1 heard on 2 metres.
Sil - ZL2CIA
zl2cia at amsat.org
Tue Jan 16 02:43:53 PST 2007
Hi,
This may be old news, but PEHEUNSAT-1 seems to be
transmitting.I believe that I heard PEHEUNSAT-1
this evening.
Pass ended at 1000 UT (2300 local). Signals seemed
to consist of a voice broadcast in Spanish
followed by a short burst of carrier. I could not
hear any modulation of this carrier and did not
decode anything.
I have since googled and see that the downlink in
the 2 metre band is at 9k6 b/s. I was still setup
for NO-44 at 1200 b/s and of course 9k6 sounds
much like noise to the human ear. The satellite
may well have been transmitting data.
On hearing the signal, I retuned the rig and
tracked the frequency by watching the
discriminator output meter. The frequency
decreased in a way consistent with Doppler shift.
I caught the last few minutes of the pass by
chance, and only because the radio was still tuned
to 145.8235 MHz (FM) after an earlier pass of NO-44.
I have another pass at 1129 UT (0029 local time)
and I will try to be ready for that one.
Sil - ZL2CIA
Antenna: 6 ele hori - homebuilt.
Rig: FT736R
Parallel decoding of AX.25 using home built
interface and AGWPE/UISS, and Heath Packkit 232
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