The amateur radio linear transponder (SSB/CW) payload on the Russian satellite DOSAAF-85 (RS-44) has been activated.
Dmitry Pashkov R4UAB reports:
The satellite is named after the 85th anniversary of the Voluntary Society for the Assistance to the Army, Aviation and Navy, the organization responsible for the military training of Soviet youth.DOSAAF-85 is a small scientific satellite created by specialists of the company Information Satellite Systems (ISS) Reshetnev and students of the Siberian State Aerospace University (SibSAU) Krasnoyarsk.
The DOSAAF-85 satellite is designed to provide amateur radio communications, as well as to develop promising technologies. This is the third satellite that was created by specialists of ISS-Reshetnev and is based on the Yubileyniy platform, which features a hexagonal prism structure with body mounted solar cells.
The satellite was launched into orbit on December 26, 2019 from the Plesetsk Cosmodrome and is in an elliptical orbit with a perigee of 1175 km, an apogee of 1511 km and an inclination of 82.5 degrees.
Transmitter power: 5 watts
Beacon: 435.605 MHz – transmits CW call sign RS44
Inverting transponder:
Earth-to-Space: 145.965 MHz +/- 30 kHz
Space-to-Earth: 435.640 MHz +/- 30 kHz
Source Dmitry Pashkov R4UAB whose page also contains the satellite’s TLE, see
https://tinyurl.com/RussiaR4UAB
Peter 2M0SQL has added RS-44 to the AMSAT Live OSCAR Satellite Status Page at
https://www.amsat.org/status/
Linear Satellite Frequency Summary https://www.amsat.org/linear-satellite-frequency-summary/
Source:AMSAT UK
Antenna
RG8X No-Name Coax, You Need To Be Careful, Jim W6LG Shows What Happened To 100 Feet Of Gray Coax
Jim Heath W6LG shows what happened to RG8X that had 1500 applied. Watch the subsequent episodes for more information about coax. Read more
To Resonate or Not to Resonate?
Ben, K0ABR, simply asks Is resonate better than non resonate antenna? Read more
Attaching Coax to a Dipole
Gordon, KO4OCO, in reference to Dave’s 40 meter dipole video, he asks how the actual connection between the coupler and the antenna wire was mad... Read more
20M LOADED DIPOLE – HALF A YAGI?
Here we take a look at building a short, loaded dipole for 20 Meters, 14 MHz. In fact, this is going to be half of a 2 element yagi for the 20M band. Read more
Radio Wave Properties: Electric and Magnetic Dipole Antennae
“An HP model 3200B VHF Oscillator and ENI model 5100-L NMR RF Broadband Power Amplifier provide a 300 MHz signal to a half-wave dipole antenna.... Read more
Equipment
New Firmware Updates for the IC-705, IC-7300 and IC-9700 SDR Transceivers
Icom has released updates for its latest range of Amateur radios. The updates are available for the IC-705, IC-7300 and IC-9700 SDR transceivers. The... Read more
EL/AZ 3D Printed Antenna Rotator – Testing !
“One of the Youtube viewers made a comment a few weeks ago asking about my rotator project. Their comment inspired me to finish it. This project... Read more
ICOM IC 7300 Ham Radio Go Box, It’s Final Form?
“The go box is portable operation ready. How did I do on the wire mangement? What is its final config? Check it out and tell me what you think.... Read more
Bob Heil, K9EID – Manufacturers Showcase
“We are with Bob Heil, K9EID with Heil Sound on this weeks episode of the Manufacturers Showcase” Read more
XIEGU X6100 HF TRANSCEIVER | FULL MODE | SDR RADIO
X6100 is an ultra-portable shortwave transceiver. It adopts the SDR software radio platform architecture of excellent performance, which carries power... Read more
News
Massachusetts Court Okays Amateur Radio Tower, Citing Board of Appeals’ Error
A judge in the Massachusetts Land Court has ruled that the Zoning Board of Appeals in the City of Framingham “erred” in revoking a building permit for... Read more
FCC Investigating Alleged “Jamming” on 40 Meters
Reports suggest that jamming stations have been deployed on the lower portion of 40 meters. The jamming appears to be coming from Cuba. The signals, s... Read more
Audio and visual of Cuba jamming 40M, making it to OH
Audio and visual of Cuba jamming 40M, making it to OH Audio and visual of Cuba jamming 40M, making it to OH. #hamradio pic.twitter.com/J4wHLPMGhF — Ha... Read more
Volunteer radio operators to the rescue in Belgian floods
July 2021: Brabant Wallon’s Emergency Radio Network volunteers stepped in when the Police building in Wavre, Belgium – including its Tetra anten... Read more
FCC Investigating Whether Cuban Government Is Jamming HAM Radio
by Matthew Gault The federal government is investigating mysterious signals coming from Havana that are jamming popular frequencies. HAM radio operato... Read more
VHF
AO-109 (RadFxSat-2/AMSAT Fox-1E) Open for Amateur Use
AMSAT’s Engineering and Operations Teams have announced that AO-109 (RadFxSat-2/AMSAT Fox-1E) is now open for amateur use. AMSAT advises operators to... Read more
Radioddity REVEALS DB25-D Mini Mobile DMR Radio | First Look!
Radioddity has a new Mini Mobile DMR Radio about to be released which they are calling the DB-25-D. This is a small dual band DMR radio with 20W power... Read more
RV VHF Antenna Tips | Diamond X30N
I show how I erect a simple VHF antenna on my RV. Read more
Baofeng UV-10R Dual Band HT Ham Radio – First Look!
Today I go over the features and do some power testing on the Baofeng UV-10R Dual Band HT Ham Radio Specification: Brand Baofeng Power 10W Frequency V... Read more
ISS repeater remaining on until after Field Day
The International Space Station crossband FM repeater should remain active until after the Field Day weekend of June 26-27. Amateur Radio on the Inter... Read more
