[Date Prev][Date Next][Thread Prev][Thread Next] - [Date Index][Thread Index][Author Index]
Re: 145.900 is not just used by pacsats!
- Subject: Re: [amsat-bb] 145.900 is not just used by pacsats!
- From: Tovar <tvr@xxxxxxxxxxxxxxxx>
- Date: 10 Sep 1999 01:06:06 -0700
- In-Reply-To: Dave Guimont's message of "Thu, 09 Sep 1999 14:31:32 -0700"
- User-Agent: Gnus/5.070096 (Pterodactyl Gnus v0.96) Emacs/20.3
Personally I do not feel good about beaconing blindly knowing about
these other satellites. With a omni directional uplink you do run a
chance of getting into the FO birds.
73, Randy N7SFI
Agreed! I think the key word here is "blindly". If an APRS user knows
a target satellite is overhead or reasoanbly close to being above the
horizon (say, within a few minutes), then well-managed beaconing on a
PACSAT uplink seems reasonable. I have no problem with APRS operations
on under-utilized satellites or those facing obsolescence or dysfunction,
so long as this is consistent with the intentions of the control operators.
For example, if KO-23 can no longer support BBS operation but can still
act as a digipeater, then it might be a good candidate for UI operations.
The 2 meter satellite sub-band is a busy place. I don't know if they're
all alive, but i count eight satellite at/near 145.900 MHz and it is even
possible that more than one might be overhead at the same time. Operation
on an 2 meter uplink frequency when a suitable satellite not nearby is
causing interference to other satellites [97.101(b) and 97.101(d)] and
such operations may be also contrary to good amateur practice [97.101(a)].
Interference from stations who can't hear the satellite are our biggest
problem on AO-27 (even beyond over-use), and those who do get e-mail,
cards, and/or phone calls when they cause problems. (BTW, these are
usually help people operate successfully.) We don't need more problems
in that sub-band.
Randy is not only very active on the satellites and especially helpful
to newcomers, but is working on getting one up and functioning. I feel
we need to take his concerns very seriously.
-- KD6PAG
Attachment: Current 2 meter uplink frequencies (from my personal 'modes.dat')
-------------------------------------------------------------------------------
Downlink Satellite Uplink
437.1258 USB LO-19 145.840 FM
435.175 FM KO-23 145.850 FM
435.910 USB FO-20 145.850 FM
435.910 USB FO-29 145.850 FM
436.792 FM AO-27 145.850 FM
29.357-29.397 USB RS-15 145.857-145.897 USB
437.1258 USB LO-19 145.860 FM
435.910 USB FO-20 145.870 FM
435.910 USB FO-29 145.870 FM
436.500 FM KO-25 145.870 FM
435.822 USB IO-26 145.875 FM
437.1258 USB LO-19 145.880 FM
435.910 USB FO-20 145.890 FM
435.910 USB FO-29 145.890 FM
435.120 FM UO-22 145.900 FM
435.175 FM KO-23 145.900 FM
435.8-435.9 USB FO-20 145.9-146 LSB
435.8-435.9 USB FO-29 145.9-146 LSB
435.822 USB IO-26 145.900 FM
437.0513 USB AO-16 145.900 FM
437.1258 USB LO-19 145.900 FM
435.910 USB FO-20 145.910 FM
435.910 USB FO-29 145.910 FM
437.0513 USB AO-16 145.920 FM
435.822 USB IO-26 145.925 FM
437.0513 USB AO-16 145.940 FM
435.822 USB IO-26 145.950 FM
437.0513 USB AO-16 145.960 FM
435.120 FM UO-22 145.975 FM
435.2777 FM POSAT 145.975 FM
145.985 FM MIR 145.985 FM
===============================================================================
----
Via the amsat-bb mailing list at AMSAT.ORG courtesy of AMSAT-NA.
To unsubscribe, send "unsubscribe amsat-bb" to Majordomo@amsat.org
AMSAT Home