Date |
Update |
Directory |
March
29th
2026 |
Update
of page with historical sound tracks of various space
objects - ARISS School Contact of Sophie Adenot with
school in California / USA - recorded by DD1US  |
Sounds from Space |
March
16th
2026 |
Update
of page with historical sound tracks of various space
objects - Recording of Lunar-9 |
Sounds from Space |
28.
Feb.
2026 |
Vergleich
von diversen rauscharmen Breitbandverstaerkern hinsichtlich
Verstaerkung und Rauschzahl
Praesentaton bei der
46. GHz- Tagung Dorsten am 28. Februar 2026
 |
Ham Downloads |
Feb.
22nd 2026 |
What's
inside the BRAUN Preselector SWF 10-40 ?
|
Ham Downloads |
Feb.
22nd 2026 |
LOWE
HF-150 HF receiver setup |
Ham Downloads |
22.
Feb.
2026 |
Analyse
des Empfangssystems von J.I.L. incl. SX-400,
RF-1030.
RF-5080, RF-8014 ACB-300 |
Ham Downloads |
Feb.
13th 2026 |
10
Watt PA for the 13cm band WYDZ-PA-2.4G-10W
|
Ham Downloads |
13.
Febr. 2026 |
10
Watt PA für das 13cm Band WYDZ-PA-2.4G-10W
|
Ham Downloads |
January
4th 2026 |
Unknown
L-Band dipole feed |
Ham Downloads |
December
29th
2025 |
Update
of page with historical sound tracks of various space
objects - Random contact of Chris SV1/N1YE with Mike
Fincke NA1SS in the ISS |
Sounds from Space |
December
23rd
2025 |
Update
of page with historical sound tracks of various space
objects - the ISS DATV downlink does now feature a colour
bar test picture when no camera is connected - first
reception by DD1US |
Sounds from Space |
December
17th
2025 |
Installing
the correct Windows driver for the LimeSDR Mini
|
Ham Downloads |
November
30th
2025 |
Update
of page with historical sound tracks of various space
objects - Successful reception of STEREO-A in a distance
of 1.5 Mio km by Graham Leighton G8FXB |
Sounds from Space |
November
28th
2025 |
Update
of page with historical sound tracks of various space
objects - ARISS School Contact with two Italian schools
- recorded by DD1US |
Sounds from Space |
November
27th
2025 |
Update
of page with historical sound tracks of various space
objects - NASA's perseverance rover recorded the sound
of lightning on Mars |
Sounds from Space |
October
18th
2025 |
Update
of page with historical sound tracks of various space
objects - ARISS School Contact with 1st
Radford Semele Scout Group in UK including DATV downlink
- recorded by DD1US |
Sounds from Space |
October
11th
2025 |
Description
of wideband amplifier ALDETEC ALS01069 |
Ham Downloads |
October
11th
2025 |
Description
of wideband amplifier MITEQ AFS-4-07200780-20-10P |
Ham Downloads |
13.
Sept. 2025 |
90W
Leistungsverstärker für das 6 cm Amateurfunkband-
Praesentation bei der 70. UKW-Tagung in Weinheim
2025 |
Ham Downloads |
June
27th 2025 |
A
robust portable QO-100 station based on an ADALM Pluto
-
presentation at HAM RADIO 2025 Friedrichshafen/Germany
|
Ham Downloads |
August
30th
2025 |
Update
of page with historical sound tracks of various space
objects - Heard first time my own voice reflected by
the moon - recorded by DD1US |
Sounds from Space |
July
3rd
2025 |
Update
of page with historical sound tracks of various space
objects - Added recording of school contact via QO-100
between DP0GVN in Antarctica and DN7NBK at Gymnasium
Stift Keppel in Siegen/Germany recorded by DD1US |
Sounds from Space |
June
27th 2025 |
A
robust portable QO-100 station based on an ADALM Pluto
-
presentation at HAM RADIO 2025 Friedrichshafen/Germany
|
Ham Downloads |
June
19th 2025 |
Repurpose
a VIKINX DI0106D Distributor as a Reference Frequency
Distribution Unit |
Ham Downloads |
June
19th 2025 |
A
12 V to 28 V DC-DC-Converter for portable operation
|
Ham Downloads |
June
19th 2025 |
A
5 V to 12 V DC-DC-Converter for portable operation
|
Ham Downloads |
15.
Juni 2025 |
Ein
90W Leistungsverstaerker fuer das 6cm Band
|
Ham Downloads |
June
4th
2025 |
Update
of page with historical sound tracks of various space
objects - Added recording of ARISS school contact with
students at the Technological University of Dublin,
Ireland |
Sounds from Space |
May
27th
2025 |
Update
of page with historical sound tracks of various space
objects - Added recording of Sputnik 1 recorded at TH
Darmstadt/Germany provided by Luis Maria Benitez
|
Sounds from Space |
May
26th
2025 |
Update
of page with historical sound tracks of various space
objects - Added recordings of special transmission of
AO-21 in memoriam of the first man on the moon provided
by JA0FKM |
Sounds from Space |
May
20th
2025 |
Update
of page with historical sound tracks of various space
objects - Added recording of school contact via QO-100
between DP0GVN in Antarctica and DN1EME in Breisgau/Germany
provided by DL2GRC |
Sounds from Space |
May
18th 2025 |
Characterization
of 13cm band pre-amplifier SP-13 from SSB-Electronic
|
Ham Downloads |
April
23rd 2025 |
Low
noise broadband pre-amplifier from China based on QORVO
QPL9547 |
Ham Downloads |
23.
April 2025 |
Rauscharmer
breitbandiger Vorverstärker aus China mit QORVO
QPL9547 |
Ham Downloads |
April
22nd 2025 |
5700MHz
90W Power Amplifier |
Ham Downloads |
April
14th 2025 |
3400MHz
50W Power Amplifier |
Ham Downloads |
13.
April 2025 |
2400MHz
230W Leistungsverstärker |
Ham Downloads |
April
2nd
2025 |
2m
band circulator TDK CU519A retuned from 154 MHz to 145
MHz |
Ham Downloads |
April
1st
2025 |
Characterization
of 3.4GHz 10W PA Toshiba UM2784B
|
Ham Downloads |
April
1st
2025 |
Update
of page with historical sound tracks of various space
objects - Added recording of school contact between
the first German astronaut Rabea Rogge LB9NJ during
the FRAM2 mission with technical university Berlin/Germany
|
Sounds from Space |
March
14th
2025 |
Update
of page with historical sound tracks of various space
objects - Added recording of special activation of XU7AMO
in Cambodia via QO-100 |
Sounds from Space |
January
10th
2025 |
Update
of page with historical sound tracks of various space
objects - Added recording of BGS ARPIT provided by SP5LOT |
Sounds from Space |
December
14th
2024 |
Update
of page with historical sound tracks of various space
objects - Added recording of FM QSO via AO-123 provided
by PU4ELT |
Sounds from Space |
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
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 |
