Date |
Update |
Directory |
|
|
|
November
11th
2024 |
Polishing
the scratched display of a R&S FSH6 portable spectrum
analyzer  |
Ham Downloads |
November
6th
2024 |
Update
of page with historical sound tracks of various space
objects - Added recording of Ruzaevka-390 (RS44S) provided
by PU4ELT |
Sounds from Space |
October
28th
2024 |
Update
of page with historical sound tracks of various space
objects - Added recording of KOSEN-1 provided by PU4ELT
|
Sounds from Space |
October
9th
2024 |
A
869.4MHz bandpass filter for MESHTASTIC |
Ham Downloads |
October
9th
2024 |
Update
of page with historical sound tracks of various space
objects - Added recording of UmKA-1 provided by PU4ELT
|
Sounds from Space |
October
9th
2024 |
Update
of page with historical sound tracks of various space
objects - Added recording of SO-121 provided by PU4ELT
|
Sounds from Space |
September
21st
2024 |
Slideset
for presentation at AMSAT-DL Symposium 2024: Proposal
to ESA for a Geostationary Microwave Ham Radio Payload |
Ham Downloads |
September
10th
2024 |
Update
of page with historical sound tracks of various space
objects - Added recording of Platform-1 provided by
PU4ELT |
Sounds from Space |
September
10th
2024 |
Comparison
table signal generator phase noise |
Ham Downloads |
September
7th
2024 |
Artikel
für das Skriptum der UKW-Tagung in Weinheim: Vorschlag
der AMSAT-DL an die ESA: Ein neuer geostationärer
Satellit mit Mikrowellennutzlast
 |
Ham Downloads |
September
7th
2024 |
Slideset
for presentation at UKW-Tagung in Weinheim: Proposal
to ESA for a Geostationary Microwave Ham Radio Payload |
Ham Downloads |
September
5th
2024 |
Update
of page with historical sound tracks of various space
objects - Added recording of NAVSTAR 46, COSMOS 2395
and GIOVE-B provided by M0EYT |
Sounds from Space |
September
5th
2024 |
Update
of page with historical sound tracks of various space
objects - Added recording of some random contacts of
NA1SS on July 26th
2022 in the ISS including DD1US, DJ8MS, EB3A, IK4JQQ,
F4DXV, EB3SA, EA5TT and IZ6WLWS |
Sounds from Space |
September
5th
2024 |
Update
of page with historical sound tracks of various space
objects - Added recording of AISat provided by PU4ELT
|
Sounds from Space |
September
5th
2024 |
Update
of page with historical sound tracks of various space
objects - Added recording of ORBCOMM-FM25 provided by
Patrick Hajagos DK193WN
|
Sounds from Space |
September
4th
2024 |
Update
of page with historical sound tracks of various space
objects - Added recording of LO-19, AO-51 and Delfi-C3/DO-64
provided by Patrick Hajagos DK193WN |
Sounds from Space |
September
3rd
2024 |
Update
of page with historical sound tracks of various space
objects - Added recording of INS-2TD, VIZARD, KUZBASS-300,
KAI-1, CUBESX-HSE-2, CYCLOPS, UTMN, ISOI , MIET-AIS,
SIREN, Geoscan Edelveis, BY70-3 and UTMN-2 provided
by DL7NDR |
Sounds from Space |
September
3rd
2024 |
Update
of page with historical sound tracks of various space
objects - Added recording of NetSat-2, Painani-1, Lucky-7,
RAMSAT, Light-1, KSU-Cubesat, ION-mk01, CAPE-3, BY70-2
and Norbi provided by DL7NDR |
Sounds from Space |
September
2nd
2024 |
Update
of page with historical sound tracks of various space
objects - Added recording of INSPIREsat-1, OreSat0,
Delfi-PQ, MIMAN, Planetum-1, RANDEV, CTIM-FD and Plantsat
provided by DL7NDR |
Sounds from Space |
September
1st
2024 |
Retuning
a UHF Bandpass Filter to 744.5 MHz as IF RX filter for
QO-100 |
Ham Downloads |
September
1st
2024 |
Update
of page with historical sound tracks of various space
objects - Added recording of CHANG-E5 provided by M0EYT
|
Sounds from Space |
September
1st
2024 |
Update
of page with historical sound tracks of various space
objects - Added recording of SAKUR, CAS-5A, CAS-10,
HADES-D and GreenCube provided by DL7NDR
|
Sounds from Space |
September
1st
2024 |
Update
of page with historical sound tracks of various space
objects - Added recording of SAKURA provided by PU4ELT
|
Sounds from Space |
August
31st
2024 |
Update
of page with historical sound tracks of various space
objects - Added recording of SOKRAT, SUCHAI-3, VDNH-80,
VZLUSat-2, UPMSAT-2, BlueWalker-3, AlfaCrux, GRBAlpha
1, D-Star ONE Lightsat, Simba, SelfieSat and TUBIN provided
by DL7NDR |
Sounds from Space |
August
30th
2024 |
Update
of page with historical sound tracks of various space
objects - Added recording of OPS-SAT, AMURSat, JAISAT,
Orbicraft-Zorkiy and LEDSat provided by DL7NDR |
Sounds from Space |
August
30th
2024 |
Update
of page with historical sound tracks of various space
objects - Added recording of CosmoGirl-Sat provided
by PU4ELT |
Sounds from Space |
August
29th
2024 |
Update
of page with historical sound tracks of various space
objects - Added recording of SIREN, HAYASAT-1, GRBBeta,
TECHNOSAT, PSAT-2 and Orbicraft-Zorkiy provided by PU4ELT
|
Sounds from Space |
August
28th
2024 |
Update
of page with historical sound tracks of various space
objects - Added recording of Transit-5B provided by
PU4ELT |
Sounds from Space |
August
23rd
2024 |
Successfull
ARISS-Kontakt of Gymnasium Meschede / Germany Sunita
Williams KD5PLB in the ISS |
ARISS |
July
7th
2024 |
Be
careful with cheap 88-108 MHz band reject filters |
Ham Downloads |
June
29th
2024 |
Presentation
at Ham Radio Fair 2024 in Friedrichshafen: Proposal
to ESA for a Geostationary Microwave Ham Radio Payload |
Ham Downloads |
May
3rd
2024 |
MITEQ
interdigital bandpass filter FIL-1400-4012 optimized
for 1420MHz radioastronomy observations |
Ham Downloads |
May
2nd
2024 |
L-band
bandpass filter from RLC retuned to 1690MHz for weather
satellite downlink |
Ham Downloads |
May
1st
2024 |
Added
a new section with surplus items which I offer for private
sale
|
Surplus - For Sale |
May
1st
2024 |
Evaluation
of an unknown unidirectional coupler for the 2m up to
13cm bands |
Ham Downloads |
April
30th 2024 |
Unknown
L-Band dipole feed |
Ham Downloads |
April
29th 2024 |
LC
lowpass filter for the supply line of a noise source
|
Ham Downloads |
April
28th 2024 |
Analysis
of an L-Band 5-way Wilkinson Splitter / Combiner |
Ham Downloads |
April
27th
2024 |
Table
with the most important parameters of various coaxial
cables |
Ham Downloads |
27.
April
2024 |
Übersicht
der wichtigsten Daten von zahlreichen Koaxialkabeln
|
Ham Downloads |
April
26th 2024 |
Shielded
chamber for noise figure measurements |
Ham Downloads |
April
25th 2024 |
Analysis
of the Bendix TFC-6 circulator |
Ham Downloads |
April
24th 2024 |
Analysis
of the Dressler RSM 2000 Bias-T with variable attenuator
|
Ham Downloads |
April
23rd 2024 |
Analysis
of a Chinese 10Mhz - 10GHZ Bias-T |
Ham Downloads |
April
22nd 2024 |
INMARSAT
TT3008D small dish antenna analysis and evaluation
|
Ham Downloads |
21.
April 2024 |
PTT
fuer die SDR-Console am USB-Port des PCs
|
Ham Downloads |
April
20th 2024 |
External
display for ICOM IC-705 supporting transverter operations
|
Ham Downloads |
April
19th 2024 |
Analysis
of a Chinese 5-6000Mhz amplifier module |
Ham Downloads |
April
18th
2024 |
Description
of wideband amplifier MITEQ AMF-2F-005010-15-10P-L |
Ham Downloads |
April
17th 2024 |
Analysis
of an unknown Bias-T for the HF-Bands |
Ham Downloads |
April
16th 2024 |
Controlling
the R&S URVD/NRVD Power Meter by LabView
|
Ham Downloads |
April
15th 2024 |
Analysis
of a 1.3GHz 20W amplifier from China |
Ham Downloads |
April
14th 2024 |
Transmit-Receive-Switch
with Attenuator for IF frequencies of 145MHz and 435MHz
|
Ham Downloads |
April
13th 2024 |
Analysis
of a 2.4GHz 20W amplifier from JDElektronik DJ4ZZ
|
Ham Downloads |
13.
April 2024 |
Analyse
eines 2,4GHz 20W Verstärkers von JDElektronik DJ4ZZ
|
Ham Downloads |
April
12th 2024 |
A
4 pole bandpass filter for the 70cm band recycled from
a UHF duplexer |
Ham Downloads |
April
11th 2024 |
AMSAT-DL
proposal to ESA for a Geostationary Microwave Ham Radio
Payload |
Ham Downloads |
April
10th 2024 |
Fullduplex
operation in FT8 und FT4 via QO-100
|
Ham Downloads |
10.
April 2024 |
Mit
Windows 7/10/11 Rechner auf die Festplatte des R&S
FSIQ (mit Windows NT) zugreifen |
Ham Downloads |
April
9th 2024 |
Problems
with measurement of a 5.7GHz LNA |
Ham Downloads |
April
8th 2024 |
Low
cost DIY digital readout for an X-Y-axis table
|
Ham Downloads |
April
7th 2024 |
Wideband
Amplifier MITEQ AMF-5S-122132-12-13P |
Ham Downloads |
April
6th 2024 |
Wideband
Amplifier MITEQ AFS3-02000400-06-10P-4 |
Ham Downloads |
April
5th 2024 |
Analysis
of an unknown variable attenuator |
Ham Downloads |
April
4th 2024 |
Analysis
of a 2.4GHz 1.3W amplifier from Phillip Prinz DL2AM
|
Ham Downloads |
April
3rd 2024 |
Analysis
of a 2.4GHz 900mW amplifier from ID-Elektronik
|
Ham Downloads |
April
2nd 2024 |
Building
some new Bias-Ts |
Ham Downloads |
April
1st 2024 |
1.3GHz
2W driver amplifier with M67715 |
Ham Downloads |
15.
Nov. 2023 |
Internationale
Amateurfunkfreunde trafen sich am Rande der HamRadio
2023 in Friedrichshafen zum 3. QO-100 Usermeeting
|
Ham Downloads |
9.
Sept. 2023 |
Remote
VSWR & Power Meter -
Praesentation bei der
68. UKW-Tagung in Weinheim 2023 |
Ham Downloads |
9.
Sept. 2023 |
Remote
VSWR & Power Meter -
Artikel im Tagungsband
der 68. UKW-Tagung in Weinheim 2023 |
Ham Downloads |
Sept.
9th 2023 |
Remote
VSWR & Power Meter -
Presentation at 68th
UKW-Tagung Weinheim/Germany 2023 |
Ham Downloads |
Sept.
9th 2023 |
Remote
VSWR & Power Meter -
Paper in the proceedings
of the 68th
UKW-Tagung Weinheim/Germany 2023 |
Ham Downloads |
April
26th 2023 |
DC
overvoltage protection with BTS555 |
Ham Downloads |
28.
Feb.
2023 |
Restaurierung
einer Aktivantenne R&S HE003 |
Ham Downloads |
Mar.24th
2023 |
How
to become QRV on the QO-100 NB transponder -
Presentation
at meeting of DARC OV A05 in Freiburg/Germany
|
Ham Downloads |
March
8th
2023 |
Successfull
ARISS-Kontakt of Gymnasium Christian-Ernestinum in Bayreuth/Germany
with Koichi Wakata KI5TMN in the ISS |
ARISS |
20.
Feb.
2023 |
Vullduplex-Betrieb
in FT8 und FT4 über QO-100 |
Ham Downloads |
Feb.
11th 2023 |
How
to become QRV on the QO-100 NB transponder -
Presentation
at the Dreilaender Sysop Meeting 2023 in Engen/Germany
|
Ham Downloads |
Feb.
9th 2023 |
Excellent
isolator for the 13cm band of unknown type and brand
|
Ham Downloads |
Feb.
5th 2023 |
Retuning
Circulator TELEDYNE MICROWAVE C-1S13T-3 to 868MHz
|
Ham Downloads |
Feb.
4th
2023 |
Broadband
CATV amplifier based on MHW5142A
|
Ham Downloads |
31.
Jan.
2023 |
Amateurfunkkontakt
zur Internationalen Raumstation ISS - Raumfahrttage
2022 in Morgenröthe-Rautenkranz
|
Ham Downloads |
31.
Jan.
2023 |
Portabelbetrieb
über QO-100 - dem ersten geostationärem Amateurfunksatellit
- MIGR-Treffen 2022 Morgenröthe-Rautenkranz
|
Ham Downloads |
Jan.
30th
2023 |
Artificial
Mains Network (AMN/LISN) with isolating variable ratio
transformer
|
Ham Downloads |
27.
Jan.
2023 |
8.4
GHz LHCP Erreger für einen Parabolspiegel
|
Ham Downloads |
Jan.
27th
2023 |
8.4
GHz LHCP Dish Feed
|
Ham Downloads |
Jan.
22nd
2023 |
ALCATEL
FERROCOM 20B1-31 circulator for 1700-2300MHz
|
Ham Downloads |
Jan.
15th 2023 |
Circulator
Kathrein France CHF 05080 for the 70cm band
|
Ham Downloads |
Dec.
18th
2022 |
Update
of page with historical sound tracks of various space
objects - Added recording of HO-113, NO-116, RS14S and
HSU-Sat 1 provided by DL7NDR |
Sounds from Space |
Dec.
18th
2022 |
Update
of page with historical sound tracks of various space
objects - Added recording of Falconsat-3, Geoscan-Edelveis
and FO-188 |
Sounds from Space |
Nov.
29th
2022 |
Update
of page with historical sound tracks of various space
objects - Added recording of Venus, Mars and Mercury
|
Sounds from Space |
Nov.
29th
2022 |
Radio
Amateurs who are also a member of the NexStar Yahoo
group |
Astro Downloads |
Nov.
29th
2022 |
Update
of page with historical sound tracks of various space
objects - Added recording of CO-58 provided by Michael
Hoerenberg |
Sounds from Space |
Nov.
28th
2022 |
Update
of page with historical sound tracks of various space
objects - Added recording of ARDUIQUBE/DIY provided
by Michael Hoerenberg |
Sounds from Space |
Nov.
26th
2022 |
Update
of page with historical sound tracks of various space
objects - Added recording of CAS-6 and CAS-9 provided
by Michael Hoerenberg |
Sounds from Space |
Nov.
22nd
2022 |
Update
of page with historical sound tracks of various space
objects - Added recording of C-SIM provided by DL7NDR
|
Sounds from Space |
Nov.
20th
2022 |
Update
of page with historical sound tracks of various space
objects - Added recording of UWE-4, TY-4, Suomi100,
Snuglite, MXSat-1, MOVE-II, FMN-1, D-Star One Sparrow
and D-Star-One iSat provided by DL7NDR |
Sounds from Space |
Oct.
25th 2022 |
2.4GHz
200W Circulator based on Skyworks SKYFR-000827
|
Ham Downloads |
21.
Okt.
2022 |
Untersuchungen
einer Peltier-Kuehlung fuer eine Leistungsendstufe
|
Ham Downloads |
Oct.
16th 2022 |
70cm
High Power Circulator by retuning VALVO Band V Circulator
|
Ham Downloads |
19.
Sept.
2022 |
Anschluss
des ADALM Pluto SDRs an ein lokales Netzwerk (LAN)
|
Ham Downloads |
Sept.
19th
2022 |
Connecting
the ADALM Pluto SDR to the LAN |
Ham Downloads |
10.
Sept.
2022 |
Portabelstation
für QO-100 auf Basis eines ADALM Pluto -
Vortrag
auf UKW-Tagung 2022 in Weinheim |
Ham Downloads |
10.
Sept.
2022 |
Amateurfunk
ueber QO-100 von DP0GVN in der Antarktis -
Vortrag
auf UKW-Tagung 2022 in Weinheim |
Ham Downloads |
Sep.
4th 2022 |
2400MHz
40W Power Amplifier with MW7IC2240 |
Ham Downloads |
30.
August 2022 |
2400MHz
Power Amplifier 230W |
Ham Downloads |
Aug.
9th 2022 |
Anritsu
Preamplifier MA8610A |
Ham Downloads |
Aug.
9th 2022 |
70cm
low noise preamplifier P432VDG from Advanced Receiver
Research |
Ham Downloads |
Aug.
8th 2022 |
Wideband
Amplifier MITEQ AFS2-04001800-50-8P-2 |
Ham Downloads |
Aug.
8th 2022 |
Wideband
Amplifier MITEQ AMF-5F-06001800-15-10P-E
|
Ham Downloads |
Aug.
7th 2022 |
Unknown
13cm Circulator |
Ham Downloads |
July
28th 2022 |
Wideband
Amplifier MITEQ AMF-3F-00820096-14-30P |
Ham Downloads |
26.
Juli
2022 |
Ein
Filter für Satellitenbetrieb im Mode-J
|
Ham Downloads |
24.
Juli
2022 |
Netznachbildung
mit Regel- und Trenntrafo |
Ham Downloads |
June
10th
2022 |
ARISS
contact with German Astronaut Matthias Maurer
|
Ham Downloads |
June
10th
2022 |
Ham
Radio via QO-100 from DP0GVN in Antarctica
|
Ham Downloads |
5.
Juni
2022 |
Amateurfunk
ueber QO-100 von DP0GVN in der Antarktis
|
Ham Downloads |
June
4th
2022 |
HP
Server Power Supply HP-HSTNS-PL14 modified for Ham Radio
use |
Ham Downloads |
June
2nd 2022 |
2-6
GHz Isolator QUEST SM2060T02 characterized at 2.4GHz
|
Ham Downloads |
June
2nd
2022 |
Improvement
of receiver SNR as a function of its image rejection
ratio |
Ham Downloads |
May
26th
2022 |
Manual
for the AMSAT-DL Highspeed Multimedia Modem Software
from Kurt DJ0ABR |
Ham Downloads |
May
24th
2022 |
EME
UHF-LVR Power and SWR Meter 430-2400MHz |
Ham Downloads |
May
3rd
2022 |
A
868MHz bandpass filter K&L Microwave 10B120-865/530-0
|
Ham Downloads |
March
31st
2022 |
A
868MHz bandpass filter for LORAWAN |
Ham Downloads |
March
6th
2022 |
The
WellGood active loop antenna tested with the Airspy
HF+ SDR |
Ham Downloads |
5.
Maerz
2022 |
Erfolgreicher
ARISS-Kontakt des ERASMUS Gymnasiums in Denzlingen und
des Goethe Gymnasiums in Freiburg mit Matthias Maurer
KI5KFH in der ISS - Video aus der ISS hinzugefügt |
ARISS |
22.
Feb.
2022 |
Vortrag
gehalten direkt vor dem ARISS Kontakt mit Matthias Maurer
in Denzlingen |
Ham Downloads |
Feb.
17th 2022 |
Update
of page with historical sound tracks of various space
objects - Added audio recording of ARISS contact of
Matthias Maurer |
ARISS |
Feb.
12th
2021 |
Update
of page with historical sound tracks of various space
objects - Added recording of OPUSAT-2/Hirogari received
by Patrick Hajagos |
Sounds from Space |
Feb.
6th
2022 |
Update
of page with historical sound tracks of various space
objects - Added audio recording of HO-113 received by
Branko 9A3ST |
Sounds from Space |
Feb.
4th 2022 |
Update
of page with historical sound tracks of various space
objects - Added audio recording of ARISS contact of
Matthias Maurer |
ARISS |
Jan.
23rd 2022 |
Wideband
Amplifier MITEQ AMF-3F-005010-10-20P-ITC
|
Ham Downloads |
Jan.
22nd 2022 |
Unknown
1.9-2.3GHz Isolator |
Ham Downloads |
Jan.
8th
2022 |
A
35MHz-4400MHz RF Signal Generator based on an ADF4351
synthesizer and a PE43702 digital step attenuator
|
Ham Downloads |
Jan.
1st
2022 |
2400MHz
Wilkinson power splitter/combiner |
Ham Downloads |
31.
Dez.
2021 |
Ein
kompakter QO-100 Transceiver basierend auf einem "ADALM
Pluto SDR", der "AMSAT-DL 6W PA" und
der "QO-100 LNB & Supply & Clock"
Baugruppe von DJ0ABR |
Ham Downloads |
Dec.
21st 2021 |
Isolator
1500-3000 MHz TMT H3930 for the 13cm band
|
Ham Downloads |
Dec.
21st 2021 |
Update
of page with historical sound tracks of various space
objects - Added audio recording of 3rd
ARISS contact of Matthias Maurer received by AMSAT-DL
SatNOGS station DK0SB |
Sounds from Space |
Dec
19th 2021 |
Isolator
AEROTEK E60-1L1FM for the 13cm band |
Ham Downloads |
Dec.
16th
2021 |
Update
of page with historical sound tracks of various space
objects - Added audio recording of 3rd
ARISS contact of Matthias Maurer received by Matthias
DD1US |
Sounds from Space |
Dec.
13th
2021 |
Update
of page with historical sound tracks of various space
objects - Added audio recording of 2nd
ARISS contact of Matthias Maurer received by Matthias
DD1US |
Sounds from Space |
Dec.
12th
2021 |
Update
of page with historical sound tracks of various space
objects - Added audio recording of contact between Alex
KR1ST and NA1SS |
Sounds from Space |
Dec.
10th
2021 |
Update
of page with historical sound tracks of various space
objects - Added audio recording of 1st
ARISS contact of Matthias Maurer received by Matthias
DD1US |
Sounds from Space |
Dec.
10th
2021 |
Update
of page with historical sound tracks of various space
objects - Added audio recording of special transmission
of PCSat in memoriam to OSCAR-1 and Marconi received
by Alex KR1ST |
Sounds from Space |
