Handle |
Mike |
QRA |
KP20KG or KP21KK |
QTH |
Kannelmäki, Helsinki or Kasiniemi, Padasjoki |
RX IF radio |
FT290R MkII |
RX converter |
Modified Drake 2880 |
LNA |
Homebrew P-HEMT |
NF |
0.65 dB |
RX antenna |
90 cm prime focus dish |
Feed |
Homebrew dual band horn |
Polarisation |
RHCP & LHCP |
TX IF radio |
FT790R Mk II |
TX transverter |
Homebrew |
TX PA |
Homebrew, 4 * M57762 |
PA RF output power |
50 W |
TX antenna |
90 cm prime focus dish |
Feed |
Homebrew dual band horn |
Polarisation |
RHCP & LHCP |
Antenna tracking |
Manual |
Doppler correction |
Manual |
Note |
Max. operating time 3 hours on 12 V, 24 Ah lead gel battery, all equipment in one box (click here for a plot of typical QSO's possible with this setup) |
Future plans |
LHCP dual band patch feed, sectorized, portable compact dish |
E-mail |
callsign@amsat.org |
WWW |
Handle |
Joonas |
QRA |
|
QTH |
Tuusula, near Helsinki |
RX IF radio |
Multimode IC-970 @ 433 MHz |
RX converter |
DB6NT MKU24 with 433 MHz IF, NF 0.6 dB, Drake 2880 with 144 MHz IF, NF 6 dB |
LNA |
DJ9BV design using P-HEMT FHX06, see AMSAT-DL 4/93 for details |
NF |
0.54 dB |
RX antenna |
95/86 cm offset dish, f/D ~0.7 |
Feed |
5.25 turn helix, quarter turn brass strip matching section, 15 cm semirigid to LNA |
Polarisation |
RHCP with dish |
TX IF radio |
Multimode IC-970 @ 144 MHz |
TX transverter |
SSB Electronic UEK-3 and USM-3 feeding M57762 for L1 uplink |
TX PA |
Homebrew 4 * M57762 |
PA RF output power |
30 W |
TX antenna |
2 * tapered helix group |
Feed |
Quarter turn brass strip matching section, feedline 6 m of Aircom |
Polarisation |
RHCP |
Antenna tracking |
Manual |
Doppler correction |
Manual |
Note |
Homebrew G0MRF signal source for 2.4 GHz, DSP-12 and DSP56002EVM for 9k6 RUDAK |
Future plans |
30 m TX 7/8" feedline with Spinner connectors, offset dish with helix feed for 23 cm |
E-mail |
partner at possu dot org |
WWW |
- |
Handle |
Mika |
QRA |
KP21PI |
QTH |
Padasjoki |
RX IF radio |
ICOM IC-821 |
RX converter |
DB6NT 144/2401 MHz MKU23G2 |
LNA |
Fujitsu FHX35/M |
NF |
- |
RX antenna | 60 offset dish |
Feed |
5.25 turn helix |
Polarisation |
RHCP |
TX IF radio |
ICOM IC-821 @ 436 MHz |
TX transverter |
DB6NT 436/1268 MHz MKU130TX |
TX PA |
Homebrew M57762 |
PA RF output power | 15 W |
TX antenna |
2 * 15 homebrew turn helix |
Feed |
- |
Polarisation |
RHCP |
Antenna tracking |
Manual |
Doppler correction |
Manual |
Note |
|
Future plans |
|
E-mail |
callsign@sral.fi |
WWW |
- |
Handle |
Petri | Petri |
QRA |
KP11WL | JO65GS |
QTH |
Tampere/Finland | Charlottenlund/Denmark |
RX IF radio |
FT-817 | FT-817 |
RX converter |
Drake 2880 | DB6NT MKU24 OSCAR |
LNA |
MGAxxxxx (GaAs MMIC) | - |
NF |
1.7 dB overall | 0.6 dB overall |
RX antenna |
25 element F9FT Yagi | 90 cm dish |
Feed |
- | Dual band 1268/2401 MHz patch |
Polarisation |
Horisontal | RHCP |
TX IF radio |
Kenwood TR-9500 | FT-817 |
TX transverter |
- | DB6NT |
TX PA |
SSB Electronics | DL2AM |
PA RF output power |
60 W | 60 W |
TX antenna |
31 element Yagi (435 MHz) | 90 cm dish |
Feed |
- | Dual band 1268/2401 MHz patch |
Polarisation |
Horisontal | RHCP |
Antenna tracking |
Manual | Manual |
Doppler correction |
Manual | Manual |
Note |
Only occasionally QRV 2003 - 2004 | RX is QRV, TX not yet tested |
Future plans |
- | - |
E-mail |
petri.kotilainen@nospam.nokia.com | petri.kotilainen@nospam.nokia.com |
WWW |
- | - |
Handle |
Janne |
QRA |
KP10AE |
QTH |
Säkylä/Nokia |
RX IF radio |
FT736R Mk.II or FT790R Mk II |
RX converter |
Homebrew, multiple versions |
LNA |
Homebrew, GaAs-FET |
NF |
1 dB |
RX antenna |
60 cm portable, 180 cm fixed |
Feed |
G3RUH type helix feed |
Polarisation |
RHCP |
TX IF radio |
FT736R Mk.II |
TX transverter |
Homebrew |
TX PA |
D-MOS, homebrew |
PA RF output power |
70 W @ 23 cm, 150 W @ 70 cm |
TX antenna |
180 cm dish |
Feed |
Waveguide horn @ 23 cm, Quad @ 70 cm |
Polarisation |
RHCP (23cm), Linear (70 cm) |
Antenna tracking |
60 cm dish: Armstrong, 180 cm on rotator, manual |
Doppler correction |
Manual |
Note |
180 cm dish only during holidays and select weekends |
Future plans |
Improved antennas and feeds |
E-mail |
janne dot o dot peltonen at nokia dot com |
WWW |
- |
Handle |
Club Station |
QRA |
KP30CR |
QTH |
Artjärvi |
RX IF radio |
Various |
RX converter |
Modified Drake 2880 |
LNA |
None |
NF |
3 dB |
RX antenna |
4 m prime focus dish |
Feed |
Homebrew horn |
Polarisation |
Linear |
TX IF radio |
- |
TX transverter |
- |
TX PA |
- |
PA RF output power |
- |
TX antenna |
- |
Feed |
- |
Polarisation |
- |
Antenna tracking |
Manual |
Doppler correction |
Manual |
Note |
Currently SWL only |
Future plans |
Automatic tracking |
E-mail |
- |
WWW |
www.viestikallio.fi |
Handle |
Lauri |
QRA |
KP33ON |
QTH |
Iisalmi |
RX IF radio |
FT-726R (145 MHz) |
RX converter |
Drake 2880 with homebrew modifications |
LNA |
- |
NF |
~5 dB |
RX antenna |
1.2 m prime focus dish |
Feed |
2.25 turn helix |
Polarisation |
RHCP |
TX IF radio |
FT726R (435 MHz direct) |
TX transverter |
S53MV 23 cm transverter under construction |
TX PA |
- |
PA RF output power |
10 W @ 435 MHz |
TX antenna |
16 element Yagi (Tonna) |
Feed |
Dipole |
Polarisation |
Linear (horisontal) |
Antenna tracking |
Manual |
Doppler correction |
Manual |
Note |
435 MHz up, 2401 MHz down !!! Also QRV from weekend location with FT847, 22 element 435 MHz Yagi, Drake converter + 60 cm offset dish |
Future plans |
24 GHz converter |
E-mail |
callsign@sral.fi |
WWW |
- |
Handle |
Saku |
QRA |
KP20KF |
QTH |
Helsinki |
RX IF radio |
FT847 |
RX converter |
DB6NT converter, 144 MHz IF |
LNA |
- |
NF |
~0.6 dB |
RX antenna |
60 cm dish |
Feed |
G3RUH patch |
Polarisation |
RHCP |
TX IF radio |
FT847 (435 MHz direct) |
TX transverter |
- |
TX PA |
- |
PA RF output power |
50 W @ 435 MHz |
TX antenna |
8 element Yagi |
Feed |
Dipole |
Polarisation |
Linear (horisontal) |
Antenna tracking |
Manual |
Doppler correction |
Manual |
Note | 435 MHz up, 2401 MHz down !!! |
Future plans |
Bigger dish, also L-band uplink |
E-mail |
sakke at iki dot fi |
WWW |
- |