2 lâchers depuis LAVENHAM dans le SUFFOLK :
1-- type PICO NANU ANU-5
fréquence : 434.196 MHz au tour de 434.200 MHz
shift : 450 Hz
ballon enveloppe : 36 pouces de fête
NDLR : vol en floating vers la Belgique, la France et direction Méditerranée au dessus de la Suisse et les Alpes.
David M0MDB
2-- type XABEN : XABEN-41
------Récepteur UHF NRX2 FM 434.075 MHz
Entrez votre message APRS entre des # .............# il sera inclus dans la trame de sortie sur 434.395 MHz
------Emetteur UHF RTTY USB 50 bauds
fréquence : 434.395 MHz
shift : 425 Hz
format : 8n2
Enveloppe : 1600 grammes
Mode : floating
Le fonctionnement du répéteur n'est pas garanti, il s'agit d'un test.
Résumé :
ATLAS :
TX USB 434.395 MHz 50b 425 8n2
RX FM 434.075 MHz your APRS message entre des #........#
XABEN :
TX USB 434.650 MHz 50b 425 7 bits
James M6JCX
Source : UKHAS
Message original pour traduction complète :
----------------------------------------------------------------------------
Dear All,
Apologies for leaving this so late!
We are launching two flights today from near Lavenham in Suffolk, UK. First
is a PICO flight by Dave which will be:
NANU = 434.200Mhz
This low altitude flight will follow a path that takes it over Belgium and
then on towards the mediterranean.
The second flight is an experimental high altitude floater, using a 1600g
howyee we'll be flying a very alpha packet/rtty repeater. Onboard is a
Radiometrix NRX2 receiver listening on FM on 434.075Mhz, if it hears any
aprs packets on this frequency it'll parse them and will pass on the data
to the main payload which will include this in the RTTY downlink on
434.395Mhz. It won't downlink the whole packet - to get data to be
downlinked it needs to be in between two # symbols. For testing I've been
putting this in the comment section of the packet e.g. #Hi from the UK#.
The whole point of this setup is to try and comply with the current
interpretation of the rules. We are going to be temporarily setting up a
packet network on 434.075Mhz using our amateur licences, the balloon is not
involved in this network - instead it is just listening and extracting out
some data (but not the callsigns as you may have noticed). As there are
transmitters on the flight train as well as a receiver there is a high
chance that the receiver will be overwhelmed by the downlinks, there will
be a gap in the transmissions so if nothing is getting through then wait
for the short gap.
THERE IS A HIGH CHANCE THIS WILL NOT WORK
As a back up we will have another tracker just doing tracking!
Details:
ATLAS =
Tx : USB 434.395Mhz 50 baud, 425 shift, no parity, 2 stop ASCII-8
Rx : FM 434.075Mhz APRS packet with message in between ##
XABEN
Tx : USB 434.650MHz, Call: XABEN, 425Hz shift, 7bit ASCII
The flight path will be similar to Nanu - heading initially East and then
on South
Listeners will be very welcome especially in Europe, you are welcome to
give it a go at hitting the repeater - feedback to IRC with your success.
James
M6JCX
Source : UKHAS
Contact : f6agv AT free.fr
