View allAll Photos Tagged multiband
I was stuck for a 40 meter antenna & thought of going with my Buddipole with long whips, this setup is untested for that band in my hands.
After spending too much time experimenting I opted for a multiband end fed sloper instead which was narrow banded but got the job done on both 80/40 & 15 meters.
I'm not done experimenting with the Buddipole on 40 meters though...to be continued!
Description:
From the heart of Desert Bloom Observatory, the night unveiled the ethereal dance of the Pleiades (M45)—a cluster of radiant sisters bound by gravity and myth. Draped in silken blue veils of cosmic dust, these stars shimmer across the constellation Taurus, about 444 light-years from Earth. Their reflection nebulae are illuminated by scattered starlight across interstellar dust—an elegant harmony between myth, matter, and light.
Astro Imaging Details:
Telescope: Celestron Nexstar Evo 9.25 (235mm f/10 Schmidt-Cassegrain)
Camera: ZWO ASI2600MC Pro
Mount: Sky-Watcher EQ-6R Pro Computerized Equatorial Mount S303000
Guide Scope: ZWO 30F4 Miniscope
Guide Camera: ZWO ASI462MC Planetary Camera
Optics: Starizona HyperStar 4 HS4-C9.25 (White 10014)
Finder: Starizona Telrad Reflex Sight Finder
Focuser: ZWO Electronic Automatic Focuser EAF-5V
Controller: ZWO ASIAir Plus WiFi Camera Controller
Filter: Optolong L-Pro 2” Multiband Pass Filter
Accessories: Astrozap Dew Heater, Celestron Dew Shield
Additional: Samsung Cellular Phone, Memory Card
Exposure & Processing:
Exposure: 600 seconds × 186 frames
Stacked in DeepSkyStacker
Processed in PixInsight and Photoshop
All data were acquired and processed by me at Desert Bloom Observatory. I sincerely hope this image reflects the quiet beauty and timeless mystery of the Pleiades star cluster.
A graveyard stone
Inv. no.: 91.5.9.
found: Budapest, III. ker., Buda side foot-head of Árpád-bridge (1981)
Female figure with skirt-neck hidden by torques, a broad multiband bracelet on her left wrist. Her gown or shawl fitting close to her neck falls down from the hair which is parted in the middle, then lapping onto her shoulder.
www.micro-tech-medical.com/products/multiple-band-ligator...
Multiband Ligators
Endoscopic banding has been demonstrated as an effective and simple treatment for internal hemorrhoids. Banding is readily performed in an ambulatory setting and can result in less pain and have a shorter recovery period than surgical hemorrhoidectomy.
The Micro-Tech Hemorrhoids Multiple Band Ligator Set is a cost-effective solution for the outpatient treatment of hemorrhoids during a routine colonoscopy.
KEY BENEFITS
EXCELLENT VISIBILITY
A clear ligating barrel with rear mounted bands optimizes the endoscopic view while maintaining suction.
BAND DESIGN
The square band design provides consistent shape and reliable retention. The set comes with four pre-loaded latex-free bands.
USER-FRIENDLY SYSTEM
The handle unit tie hole enables quick and easy loading of the pull wire. The alert band notifies the operator when only one band remains.
SPECIFICATION
Multiple band ligator set
REFRequired Working Channel (mm)Scope O.D. (mm)Bands/Ligating UnitBand TypePackaging
MBLS-7F-NL2.89.4-13.07pcsLatex Free1/Box
MBLS-6F-NL2.89.4-13.06pcsLatex Free1/Box
MBLS-4F-NL2.89.4-13.04pcsLatex Free1/Box
MBLS-3F-NL2.89.4-13.03pcsLatex Free1/Box
MBLS-7F2.89.4-13.07pcsLatex1/Box
MBLS-6F2.89.4-13.06pcsLatex1/Box
MBLS-4F2.89.4-13.04pcsLatex1/Box
MBLS-3F2.89.4-13.03pcsLatex1/Box
REFRequired Working Channel (mm)Scope O.D. (mm)Bands/Ligating UnitBand TypePackaging
MBLS-XL-7F-NL2.811.0-14.07pcsLatex Free1/Box
MBLS-XL-6F-NL2.811.0-14.06pcsLatex Free1/Box
MBLS-XL-4F-NL2.811.0-14.04pcsLatex Free1/Box
MBLS-XL-3F-NL2.811.0-14.03pcsLatex Free1/Box
MBLS-XL-7F2.811.0-14.07pcsLatex1/Box
MBLS-XL-6F2.811.0-14.06pcsLatex1/Box
MBLS-XL-4F2.811.0-14.04pcsLatex1/Box
MBLS-XL-3F2.811.0-14.03pcsLatex1/Box
The Hosemaster supplies everything from hose assemblies & adaptors to filters, lubricators, spray guns, airline tools & equipment.
Looking like a spider’s web swirled into a spiral, the galaxy IC 342 presents its delicate pattern of dust in this image from NASA’s Spitzer Space Telescope. Seen in infrared light, the faint starlight gives way to the glowing bright patterns of dust found throughout the galaxy’s disk.
At a distance of about 10 million light-years, IC 342 is relatively close by galaxy standards, however our vantage point places it directly behind the disk of our own Milky Way. The intervening dust makes it difficult to see in visible light, but infrared light penetrates this veil easily. It belongs to the same group as its even more obscured galaxy neighbor, Maffei 2.
IC 342 is nearly face-on to our view giving a clear, top-down view of the structure of its disk. It has a low surface brightness compared to other spirals, indicating a lower density of stars (seen here in blue). Its dust structures show up much more vividly (yellow-green).
New stars are forming in the disk at a healthy clip. Glowing like gems trapped in the web, regions of heavy star formation appear as yellow-red dots due to the glow of warm dust. The very center glows especially brightly in the infrared, highlighting an enormous burst of star formation occurring in this tiny region. To either side of the center, a small bar of dust and gas is helping to fuel this central star formation.
Data from Spitzer’s infrared array camera (IRAC) are shown in blue (3.6 and 4.5 microns) and green (5.8 and 8.0 microns) while the multiband imaging photometer (MIPS) observation is red (24 microns).
It's February 2007 and one day I hope to make this radio play again. It's a TROY multiband tube set from the 1950s.
It was the first my girlfriend gift for my birthday, I still have it, it is portable multiband receiver.
This is my own home station -- an ICOM 7200, tuner, and my favorite keyer and paddle. Windows 7 is running on my mac in a virtual machine, with the N1MM logger software up and active. This station was connected (most of the time) to the 25' alpha-delta multiband dipole.
This swirling landscape of stars is known as the North America nebula. In visible light, the region resembles North America, but in this new infrared view from NASA's Spitzer Space Telescope, the continent disappears.
Where did the continent go? The reason you don't see it in Spitzer's view has to do, in part, with the fact that infrared light can penetrate dust whereas visible light cannot. Dusty, dark clouds in the visible image become transparent in Spitzer's view. In addition, Spitzer's infrared detectors pick up the glow of dusty cocoons enveloping baby stars.
Clusters of young stars (about one million years old) can be found throughout the image. Slightly older but still very young stars (about 3 to 5 million years) are also liberally scattered across the complex, with concentrations near the "head" region of the Pelican nebula, which is located to the right of the North America nebula (upper right portion of this picture).
Some areas of this nebula are still very thick with dust and appear dark even in Spitzer's view. For example, the dark "river" in the lower left-center of the image -- in the Gulf of Mexico region -- are likely to be the youngest stars in the complex (less than a million years old).
The Spitzer image contains data from both its infrared array camera and multiband imaging photometer. Light with a wavelength of 3.6 microns has been color-coded blue; 4.5-micron light is blue-green; 5.8-micron and 8.0-micron light are green; and 24-micron light is red.
a sinistra antenna vhf/uhf Diamond X-50, a destra antenna multibanda HF della Hy-Gain
modello AV-14AVQ + kit per gli 80m (MK80)
Questa antenna HF opera sulle bande dei 10, 15, 20, 40 e 80 metri
sotto l'antenna un paio di pinne rosa fucsia :D
This image layout reveals how the appearance of the North America nebula can change dramatically using different combinations of visible and infrared observations from the Digitized Sky Survey and NASA's Spitzer Space Telescope, respectively.
In this progression, the visible-light view (upper left) shows a striking similarity to the North America continent. The image highlights the eastern seaboard and Gulf of Mexico regions. The red region to the right is known as the "Pelican nebula," after its resemblance in visible light to a pelican.
The view at upper right includes both visible and infrared observations. The hot gas comprising the North America continent and the Pelican now takes on a vivid blue hue, while red colors display the infrared light. Inky black dust features start to glow in the infrared view.
In the bottom two images, only infrared light from Spitzer is shown -- data from the infrared array camera is on the left, and data from both the infrared array camera and the multiband imaging photometer, which sees longer wavelengths, is on the right. These pictures look different in part because infrared light can penetrate dust whereas visible light cannot. Dusty, dark clouds in the visible image become transparent in Spitzer's view. In addition, Spitzer's infrared detectors pick up the glow of dusty cocoons enveloping baby stars.
Color is used to display different parts of the spectrum in each of these images. In the visible-light view (upper right) from the Digitized Sky Survey, colors are shown in their natural blue and red hues. The combined visible/infrared image (upper left) shows visible light as blue, and infrared light as green and red. The infrared array camera (lower left) represents light with a wavelength of 3.6 microns as blue, 4.5 microns as green, 5.8 microns as orange, and 8.0 microns as red. In the final image, incorporating the multiband imaging photometer data, light with a wavelength of 3.6 microns has been color coded blue; 4.5-micron light is blue-green; 5.8-micron and 8.0-micron light are green; and 24-micron light is red.
Credit: NASA et. al.
136-174/400-480Mhz
WEIERWEI UV-5R The transcevier is a micro-miniature multiband
FM transceiver with extensive receive frequency coverage,
providing local-area two-way amateur communications along with unmatched monitoring capability
To capture this image, I stacked and processed two sets of multiple night sessions; one with RGB data using an LPS quad band filter and the other set with Ha/OIII data using a dual narrowband filter. I used Photoshop to blend the Ha and OIII monochrome images with the RGB image, more details below.
Camera: ZWO ASI2600MC Pro
Telescope/Lens: Askar ACL200
Mount: iOptron GEM28 EC
Filters: SVBony SV220 Dual Narrowband, Antlia Quad Band
Image Scale: 3.88″
FOV: 6.73º
Integration Time: 8hrs Narrowband, 12hrs Multiband
Capture Dates: Jun 22 – Jul 4, 2025
Bortle Scale: Bortle 6, Bright Suburban Sky
Aquisition Software: NINA, PHD2
Processing Software: Siril, Sirilic, GraXpert, Cosmic Clarity and Photoshop.
More info at alexisantonio.com/2025/07/14/sadr-region-and-crescent-neb...
More PX100 goodness. This shot exhibits the odd light leak-ish patterns I saw on most of this roll, which I shot using the darkslide-taped-to-the-film-exit technique. The is the top of an old Zenith Transoceanic B600 multiband radio.
Lucas Newton for “Reconfigurable Multiband FarIR Notch Filter Employing Phase Change Material.” Co-authors: Varittha Sanphuang and Niru K. Nahar (advisor).
The destructive results of a mighty supernova explosion reveal themselves in a delicate blend of infrared and X-ray light, as seen in this image from NASAs Spitzer Space Telescope and Chandra X-Ray Observatory, and the European Space Agency's XMM-Newton.
The bubbly cloud is an irregular shock wave, generated by a supernova that would have been witnessed on Earth 3,700 years ago. The remnant itself, called Puppis A, is around 7,000 light-years away, and the shock wave is about 10 light-years across.
The pastel hues in this image reveal that the infrared and X-ray structures trace each other closely. Warm dust particles are responsible for most of the infrared light wavelengths, assigned red and green colors in this view. Material heated by the supernovas shock wave emits X-rays, which are colored blue. Regions where the infrared and X-ray emissions blend together take on brighter, more pastel tones.
The shock wave appears to light up as it slams into surrounding clouds of dust and gas that fill the interstellar space in this region.
From the infrared glow, astronomers have found a total quantity of dust in the region equal to about a quarter of the mass of our sun. Data collected from Spitzers infrared spectrograph reveal how the shock wave is breaking apart the fragile dust grains that fill the surrounding space.
Supernova explosions forge the heavy elements that can provide the raw material from which future generations of stars and planets will form. Studying how supernova remnants expand into the galaxy and interact with other material provides critical clues into our own origins.
Infrared data from Spitzers multiband imaging photometer (MIPS) at wavelengths of 24 and 70 microns are rendered in green and red. X-ray data from XMM-Newton spanning an energy range of 0.3 to 8 keV (kiloelectron volts) are shown in blue.
Cradle of Cosmic Beginnings — The Embryo Nebula (NGC 1333)
In the quiet vastness of the Perseus Molecular Cloud, NGC 1333 — the Embryo Nebula — stirs with the breath of creation.
Glowing softly in hues of blue and amber, this reflection nebula shelters newborn stars wrapped in cocoons of cosmic dust. Their faint light dances through veils of interstellar mist, whispering stories of stellar infancy. Captured over five patient nights at Desert Bloom Observatory, this image gathers 88 frames of 600-second exposures — a tapestry woven from light and time. Every pixel speaks of formation, turbulence, and renewal — a glimpse into the universe’s eternal cycle of birth and becoming.
NGC 1333, located roughly 960 light-years away in the constellation Perseus, is a dense star-forming region within the Perseus Molecular Cloud Complex. It is dominated by reflection nebulosity — dust illuminated by young, hot stars — and marked by dark filaments and Herbig–Haro objects, where stellar jets collide with surrounding gas. The region teems with protostars, brown dwarfs, and protoplanetary disks, representing one of the most dynamic laboratories for studying early stellar evolution. The nebula’s distinctive structure resembles an embryo in a cosmic womb — a symbol of the universe’s relentless creativity.
Imaging Details:
Location: Desert Bloom Observatory, St. David, Arizona, USA
Telescope: Celestron Nexstar Evo 9.25" (235mm f/10 Schmidt-Cassegrain)
Mount: Sky-Watcher EQ-6R Pro Computerized Equatorial Mount S30300
Camera: ZWO ASI2600MC Pro
Guide Scope: ZWO 30F4 MiniScope
Guide Camera: ZWO ASI462MC Planetary Camera
Accessories: Starizona HyperStar 4 HS4-C9.25 White 10014, Starizona Telrad Reflex Sight, ZWO Electronic Automatic Focuser (EAF-5V), ZWO ASIAir Plus WiFi Controller, Optolong L-Pro 2” Multiband Pass Filter
Exposure: 88 frames × 600 sec (5 nights)
Processing: DeepSkyStacker, PixInsight, Adobe Photoshop
Captured with: Samsung Smartphone (control and monitoring)