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Fold-up Throw Line Box
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Thunderstorm ~ with No Teeth ~ Beautiful Timelapses of Convection Clouds
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Yaesu FT-DX10 ~ Setup N1MM ~ CW Computer CAT Menu Control Settings
New Yaesu compact HF and 50 MHz 100W SDR Transceiver available in December 2020.
Functionalities of the top line models in a smaller form factor transceiver. FTDX10 is going to utilize the Yaesu Hybrid SDR Configuration.
FTDX10 Price has been announced by Yaesu Dealers in Europe and Canada but not yet in USA since still missing for FCC Approval.
FT DX 10 Features
15 separate band pass filters
Effective QRM rejection with the IF DSP (IF SHIFT/WIDTH, IF NOTCH DNF, DNR, COUNTOUR)
High-quality and super stable final amplifier utilizing the new push-pull MOSFET RD70HUP2
Aluminum Heat Sink with 80mm low-noise axial flow cooling fan
High Speed Automatic Antenna Tuner with a large capacity 100-channel memory
RF & AF Transmit Monitor
Microphone Amplifier with Three-stage parametric Equalizer (SSB/ AM mode)
QMB (Quick Memory Bank)
Band Stack Function
Optional speaker – SP-30 designed for the new FTDX10
Optional roofing filter (300Hz) – XF-130CN available
Hybrid SDR Configuration
Like the FTDX101 series, the new FTDX10 utilizes the Yaesu Hybrid SDR configuration – Narrow Band SDR and Direct Sampling SDR. The Narrow band SDR receiver emphasizes excellent receiver performance, while the Direct Sampling SDR provides a Digital Processing Real-Time Spectrum Scope.
Narrow Band SDR
Narrow Band SDR with 3 types of Roofing Filters and Phenomenal Multi-signal receiving Characteristics
Like the FTDX101 series, the Down Conversion type receiver configuration with the first IF at 9MHz has been adopted. It makes it possible to incorporate excellent narrow bandwidth crystal roofing filters that have the desired sharp “cliff edge” shape factor. Thanks to the Narrow Band SDR with the latest circuit configuration including 500Hz, 3kHz and 12kHz roofing filters and low noise oscillator, the RMDR (Reciprocal Mixing Dynamic Range) reaches 116dB or more, the close-in BDR (Blocking Dynamic Range) reaches 141dB or more, and 3rd IMDR (third-order Intermodulation Dynamic Range) reaches 109dB or more, in the 14MHz band at 2kHz separation.
FT-DX10The New Yaesu FT DX 10 HF / 50 MHz Transceiver
High Resolution Direct Digital Synthesizer
250MHz HRDDS (High Resolution Direct Digital Synthesizer) affords Quiet and Clear Reception
The local circuit of the new FTDX10 uses 250MHz
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Near vertical incidence skywave, or NVIS, is a skywave radio-wave propagation path that provides usable signals in the distances range — usually 0–650 km (0–400 miles). It is used for military and paramilitary communications, broadcasting,[1] especially in the tropics, and by radio amateurs for nearby contacts circumventing line-of-sight barriers. The radio waves travel near-vertically upwards into the ionosphere, where they are refracted back down and can be received within a circular region up to 650 km (400 miles) from the transmitter.[2] If the frequency is too high (that is, above the critical frequency of the ionospheric F layer), refraction fails to occur and if it is too low, absorption in the ionospheric D layer may reduce the signal strength.
There is no fundamental difference between NVIS and conventional skywave propagation; the practical distinction arises solely from different desirable radiation patterns of the antennas (near vertical for NVIS, near horizontal for conventional long-range skywave propagation).
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hot air balloon launch When there is enough air in the balloon, the crew blasts the burner flame into the envelope mouth. This heats the air, building pressure until the balloon inflates all the way and starts to lift off the ground.
The ground crew members hold the basket down until the launch crew is on board. The balloon basket is also attached to the ground crew vehicle until the last minute, so the balloon won't be blown away before it is ready to launch. When everything is set, the ground crew releases the balloon and the pilot fires a steady flame from the burner. As the air heats up, the balloon lifts right off the ground.
Amazingly, this entire process only takes 10 or 15 minutes. The landing process, combined with deflating and re-packing the balloon envelope, takes a while longer.
When the pilot is ready to land, he or she discusses possible landing sites with the ground crew (via an onboard radio). They need to find a wide open space, where there are no power lines and plenty of room to lay out the balloon. As soon as the balloon is in the air, the pilot is constantly looking for suitable landing sites, in case there is an emergency.
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https://www.youtube.com/watch?v=AVtovll70Uk
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