Author: SM0TGU

Här kommer senaste status över aktiva FUNcube-satelliter:

AO-73 FUNcube-1

The transponder is normally operational only when the satellite is in eclipse, ie the solar panels are NOT being illuminated. During weekends (from PM Fridays UTC to PM Sundays UTC) the transponder is operational 24/7.

When the transponder is switched off, the telemetry beacon is on full power, when the transponder is on the beacon it is on low power. During holidays, e.g. Christmas, New Year, Easter, etc, the transponder maybe activated for extended periods. Watch AMSAT-BB for announcements which are usually made on Friday evenings (UTC)

The nominal transponder frequencies are:

Uplink: 435.150 – 435.130 MHz LSB (Inverting)
Downlink: 145.950 – 145.970 MHz USB
Telemetry Tx: 145.935 MHz BPSK

(The passband may be up to 15 kHz higher depending on on-board temps. Lower temperatures give higher freqs!)

FUNcube-2 (aka FUNcube on UKube)

The FUNcube-2 sub-system continues to operate autonomously and, almost continuously, in amateur mode. The transponder is operational and the telemetry downlink is functioning with about 70mW output. The FUNcube-1 Dashboard does not correctly display the telemetry but it does correctly decode the data and uploads it to the FUNcube Data Warehouse from where it can be examined. Most of the real time data channels are operational and these include battery voltages, temperatures and ADCS data coming via the main On Board Computer (OBC).

The transponder is interrupted for a few seconds every 2 minutes when the other transmitter sends its CW beacon and, occasionally, for a few seconds when the main OBC reboots (approx seven times each orbit).

The nominal transponder frequencies are:
Uplink: 435.080 – 435.060 MHz LSB (Inverting)
Downlink: 145.930 – 145.950 MHz USB
Telemetry Tx: 145.915 MHz BPSK

(The passband may be up to 10kHz higher depending on on-board temps. Low
temperatures give higher freqs!)

EO79 FUNcube-3

Due to power budget constraints the transponder cannot be operational 24/7 and an orbit specific schedule has been developed. The transponder will commence operation 27 minutes after the spacecraft enters sunlight and will stay on for a period of 25 minutes. This schedule may be modified in future months as a result of experience.

The nominal transponder frequencies are:
Uplink: 435.0723-435.0473 MHz LSB (Inverting)
Downlink: 145.946-145.971 MHz USB

Further detailed info on EO79 transponder frequencies is at:
https://amsat-uk.org/2016/11/10/eo79-funcube-3-transponder-commences-regular-operation/

EO88/Nayif-1/FUNcube-5

EO88 is presently operating in autonomous mode. The transponder is operational when the satellite is in eclipse, i.e. the solar panels are NOT being illuminated.

When the transponder is switched off, the telemetry beacon is on full power, when the transponder is on the beacon it is on low power.

The transponder frequencies are:

Uplink: 435.045 – 435.015 MHz LSB (inverting)
Downlink: 145.960-145.990 MHz USB
Telemetry Tx: 145.940MHz

All FUNcube transponders are sponsored by AMSAT-UK and AMSAT-NL. We are very grateful for the assistance given by Innovative Solution In Space Bv, The Netherlands.

AMSAT-BB http://www.amsat.org/mailman/listinfo/amsat-bb

FUNcube
Yahoo Group https://amsat-uk.org/funcube/yahoo-group/
Web http://www.funcube.org.uk/
Forum http://forum.funcube.org.uk/

Hej!
Dom här killarna kommer nog att bli populära på satelliterna.
73 Håkan

Iceland/Greenland/Faroe Islands on Satellite July 4-19

Gabe Zeifman NJ7H/VE6NJH has finalized plans for an upcoming trip to
Iceland, Greenland, and the Faroe Islands. Once again, this is a trip
with family so radio is not his priority. However, he will put forth
my best effort to give these rare entities and associated grids to
everyone in range.

Gabe will be arriving in Iceland at about 0000Z on July 5 and spend
one night
at the hotel on the airport (access to HP83/84 line).

Gabe reports, “We will be in Iceland until July 10 with numerous
grids in the HP and IP fields possible, no strict plan yet.

“We will continue on to the Faroe Islands July 10-14. I will make an
effort to operate from both IP61 and IP62 while in the Faroes.

“Finally, we will head to Greenland on July 14th staying until the
18th. The destination in Greenland is Ilulissat in GP49. I do not
anticipate any other grids to be activated in Greenland, although if
there is an opportunity I will, but I don’t expect any opportunities.
>From GP49 all of North/Central America and Europe should be in range,
along with portions of South America, Asia, and Africa, much of it
even possible on SO-50. I anticipate a nearly perfect horizon to the
west.

“On the 19th we travel back to the US with a several hour connection
in Iceland. I will also have two nights on the beginning and end in
New York City, and July 21-25 in Florida (anyone who needs EM90, hit
me up).

“In exciting news, this very well may be the last DX use of NJ7H.
Don’t worry, I am not retired from roving. I am beginning my training
at the FAA as an air traffic controller on July 26th and will be very
busy with that. I expect facility placement in late October, and I am
requesting Alaska. Although I cannot yet be certain, I have been told
that I should expect to receive my request.

“QSLing for this trip will be via LoTW. I still need to get some new
generic cards printed, but if you need paper I’ll get cards printed
eventually, just don’t expect rush service (I have some from other
trips in the backlog, don’t worry I havn’t forgotten).”

Calls to be used:

Iceland: TF/NJ7H
Greenland: OX/NJ7H
Faroe Islands: OY/NJ7H

CAS-4A and CAS-4B Satellites from CAMSAT Launched today

Two CAMSATs armature radio payloads piggybacked on the optical remote sensing micro-satellites OVS-1A and OVS-1B have been launched at 11:00BJT
on June 15, 2017 at The Jiuquan Satellite Launch Center of China, using CZ-4B launch vehicle. The primary of this launch is a hard X-ray modulation
telescope satellite (HXMT).

Satellite Name: CAS-4A/OVS-1A

Architecture: Micro-satellite
? Dimensions: 494Lx499Wx630H mm
? Mass: 55kg
? Stabilization: three-axis stabilization system with its +Y surface faci ng the earth
? Primary Payload: optical Camera with 1.98m resolution
? Orbit:
? Orbit type : Sun synchronization orbit
? Apogee : 524km
? Inclination : 43?
? Period : 95.1min

? Amateur Radio Payload:
? Call sign: BJ1SK
? VHF Antenna: one 1/4? monopole antenna with max.0dBi gain is located at +Z side
? UHF Antenna: one 1/4? monopole antenna with max.0dBi gain is located at -Z side
? CW Telemetry Beacon: &n bsp; 145.855MHz 17dBm
? AX.25 4.8k Baud GMSK Telemetry: 145.835MHz 20dBm
? U/V Linear Transponder Downlink: 145.870MHz 20dBm, 20kHz, Inverted
? U/V Linear Transponder Uplink: 435.220MHz

? Satellite Name: CAS-4B/OVS-1B
? Architecture: Micro-satellite
?Dimensions: 494Lx499Wx630H mm
?Mass: 55kg
? Stabilization: three-axis stabilization system with its +Y surface facing the earth
? Primary Payload: optical Ca mera with 1.98m resolution
?Orbit:
? Orbit type : Sun synchronization orbit
? Apogee : 524km
? Inclination : 43?
? Period : 95.1min

?Amateur Radio Payload:
? Call sign: BJ1SL
? VHF Antenna: one 1/4? monopole antenna with max.0dBi gain is located at +Z side
? UHF Antenna: one 1/4? monopole antenna with max.0dBi gain is located at -Z side
? CW Telemetry Beacon: 145.910MHz&n bsp; 17dBm
? AX.25 4.8k Baud GMSK Telemetry: 145.890MHz 20dBm
?U/V Linear Transponder Downlink: 145.925MHz 20dBm, 20kHz, Inverted
?U/V Linear Transponder Uplink: 435.280MHz

73!
Alan Kung, BA1DU

Satelliten LilacSat-1 är nu släppt från ISS i samband med QB50-projektet. LilacSat har en mer avancerad amatörradio ombord jämfört med de andra satelliterna.
Läs mer på denna länk: http://lilacsat.hit.edu.cn/?page_id=594

Info:

The FM transponder is expected to be a popular mode using amateur
radio FM walkie-talkies or mobile radios. The voice filter passband
is in the range of 300~3500 Hz. Below 300Hz below the sub-audio in
the form of baseband data emplying a CCSDS mode of 300 bps telemetry
data transmission.

The BJ1SI-1 APRS digipeater will immediately forward the received UI
frame in real-time.

The BJ1SI-2 APRS digipeater will allow delayed forwarding with a
user specified forwarding path and an ASCII coded time delay.

Uplink
——-
+ Frequency 145.985 MHz PL 67
+ Antenna 1/4 wavelength monopole, linear polarization
+ FM repeater Analog voice, no PL
+ APRS Digi AX.25 UI 1200 bps AFSK

Downlink
——–
+ Frequency 436.510 MHz
+ Callsign BJ1SI
+ Antenna Turnstile
LHCP (Forward, main lobe)
RHCP (Backward)

+ Telemetry CSP/CSP + AX.25 UI (Cube Satellite Space Protocol) was
originally developed by the AAUSAT3 team at the University of
Aalborg in Denmark and is an open source, lightweight network layer
protocol)
+ FM repeater Analog voice + CSP
+ APRS Digi AX.25 UI 1200 bps AFSK
+ Power 23/27 dBm