Friday, July 10, 2015

Helikon-Tex Camogrom baseball cap. Mil-Tec plastic olive flask

Helikon-TEX

Helikon-Tex Camogrom baseball cap

Adjustable baseball cap equipped with a set of soft Velcro panels for ID/morale patches and other items. Intended for use in hot weather conditions. Mid-depth cut works with variety of LE/Mil headgear systems.
Helikon-Tex Camogrom baseball capHelikon-Tex Camogrom baseball cap

SKU - CZ-BBC-PR
ID Velcro panels
Lightweight. Breathable
Material - 60% Cotton, 40% Polyester


Модель - CZ-BBC-PR
Имеет шесть вентиляционных отверстий.
Ткань: материал с повышенной стойкостью к истиранию и влаги - поликоттон Ripstop (60% хлопок, 40% полиэстер).
Размер регулируемый с помощью липучки.
Mil-tec

Sturm Mil-Tec® US Style M1 plastic olive bootle with pouch

Sturm Mil-Tec® US Style M1 plastic olive bootle with pouchSturm Mil-Tec® US Style M1 plastic olive bootle with pouch

Water purifying tablet pouch
Total volume: 1 QT (0,9464 liter)
With two Alice clips
There was an abnormally hot summer, so I had to buy it and carry in the campaigns

Фляжка пластмассовая, Mil-Tec. С чехлом

Производство компании Sturm Mil-Tec®. Пластиковая фляга емкостью в 1 литр в футляре с креплением к ремешку.
Было аномально жаркое лето, поэтому пришлось ее купить и таскать собой в походах

Wednesday, July 8, 2015

The focal distance of the SLR lens. Intuitive chart

Фокусные расстояния в объективе зеркалки. Наглядная графика
The focal distance of the SLR lens. Intuitive chart. 10-100 mm
The focal distance of the SLR lens. Intuitive chart. 100-1900 mm

Friday, June 26, 2015

The Hobbyist's Guide to the RTL-SDR: Really Cheap Software Defined Radio. Mr. Carl Laufer

The Hobbyist's Guide to the RTL-SDR: Really Cheap Software Defined Radio. Mr. Carl Laufer
A comprehensive guide to the RTL2832U RTL-SDR software defined radio by the authors of the RTL-SDR Blog. The RTL-SDR is a super cheap software defined radio based on DVB-T TV dongles that can be found for under $20. This book is about tips and tutorials that show you how to get the most out of your RTL-SDR dongle. Most projects described in this book are also compatible with other wideband SDRs such as the HackRF, Airspy and SDRPlay RSP. What's in the book?
  • Learn how to set up your RTL-SDR with various free software defined radio programs such as SDR#, HDSDR, SDR-Radio and more.
  • Learn all the little tricks and oddities that the dongle has.
  • A whole chapter dedicated to improving the RTL-SDR's performance.
  • Dozens of tutorials for fun RTL-SDR based projects such as ADS-B aircraft radar, AIS boat radar, ACARS decoding, receiving NOAA and Meteor-M2 weather satellite images, listening to and following trunked radios, decoding digital voice P25/DMR signals, decoding weather balloon telemetry, receiving DAB radio, analysing GSM and listening to TETRA signals, decoding pagers, receiving various HF signals such as ham radio modes, weatherfax and DRM radio, decoding digital D-STAR voice, an introduction to GNU Radio, decoding RDS, decoding APRS, measuring filters and SWR with low cost equipment, receiving Inmarsat, AERO and Iridium L-Band satellite data, and many many more projects!
  • Guide to antennas, cables and adapters.