Band Antenna For 2 Meters
Found 11 free book(s)
G7FEK Limited Space Antenna
www.g7fek.co.ukunderstanding of what is happening with this antenna in different “real world” scenarios and are always welcome. A 46 ft multi band antenna for small gardens that works well on 80 meters Main bands (@~50 ohm) are 80m / 40m / 30m / 17m / 15m / 12m Other bands (see text): 20m / 10m 38 ft (11.7m) 8 ft (2.5m) 24 ft (7.4m) 50 Ohm Coaxial
The G5RV Antenna System -- An Analysis
www.bvarc.orgG5RV Multi-band •80 Meters dipole with part of the open wire doing the “make up” section •40 Meters – 2 “Half waves in Phase” with part of the open wire doing the make-up section. •20 Meters – 3/2 wl •15 and 10 Meters he had to use an ATU –i.e tuned feeders (high SWR)
Wire Antennas for the Beginner - American Radio Relay …
www.arrl.orgthe band isn't too active, meaning daylight hours for 80 meters and late night for 10. If the transmitter won't deliver power to the antenna, some different tests are called for. Ask a friend with a higher-class license to try to find the resonant frequen- cy by trying several spots across the band. If the antenna resonates at a frequency
The ZS6BKW Multi-band HF Antenna
w5ssv.comRSGB 2002) It’s only 90 ft long (27.51 meters), with a 40 ft (12.2 m) downlead. ZS6BKW - Horizontal or inverted V layout So, it’s a cousin to the G5RV (which only resonates on 14 & 24 MHz), but better as it needs no ATU on 40, 20, 17, 12, 10 and 6 meters. For simplicity, I set this antenna up as an inverted-v configuration. The reason was
CHEAT SHEET HAM RADIO FOR DUMMIES CHEAT SHEET
www.w8dyy.orgA band-by-band plan showing where to find different types of ... 2 meters (a mix of 20 kHz and 15 kHz channel spacing) 145.2 – 145.5 146.61 –146.97 147.00 – 147.39 – 600 kHz ... Mag-mount antenna with necessary adapters for connecting to various connectors
GPS, LNA, Sensitivity, Jamming, Cohabitation, TTFF
www.nxp.comConsequently, the out of band input IP3 measured for the BGU7005 is +9 dBm. But the GPS specification requires that the out of band linearity should be better than +9 dBm. Suppose that the UMTS 1800 jammer is 3 meters away from the GPS receive antenna and that the UMTS 1900 transmitter transmits at +30 dBm.
ZOOM series RigExpert Antenna and cable analyzer
www.rigexpert.comantenna, open circuit or short circuit. The following screen shot was taken in the real measurement. It shows 16 meters of 75 Ohm coaxial cable, antenna switching relay, and additional 37 meters of cable ending with an HF antenna. 11
ANTENNA BASICS FOR BEGINNERS - Top Band Hams
www.topbandhams.com18.1 17 51.2 360 deg = 510 ft 21.225 15 44 deg 50 ft 24.9 12 37.6 28.5 10 33 360 X 50 / 510 = 34.6 degrees 52 6 18 Antenna Length is usually described as wavelength (WL) in meters or degrees: 90° 180° 360° TIME λ/2 (180°) λ/4 (90°) ANTENNA LENGTH 1 …
High Performance 40 Meters Vertical Without Radials
www.w6nbc.comHigh Performance 40 Meters Vertical . Without Radials . This shortened easy-to-build vertical, with no-radials, is made from surplus military camouflage poles. It has gain and wave angle comparable to a full-sized ¼λ ground plane antenna with radials . By John Portune W6NBC . I wanted high efficiency 40 Meter antenna with low-angle radiation.
A Ten Meter Vertical Antenna for All License Classes
www.qsl.nethigh voltage at the end of the antenna. Ever notice that gizmo at the base of your ½ wave or 5/8 wave two meter mobile antenna? It’s a cylinder about 2 to 3 inches tall and about an inch round. Within that gizmo is the 50 ohm to Hi Z matching device. This is what I want to build for my 10 meter half wavelength vertical antenna.
SIMPLE'' WIRE'HF'ANTENNA' - Ozaukee Radio Club
www.ozaukeeradioclub.orgVer2cal'Wire'Antenna' • Actually'a'ver2cally'orientated' resonate'1/2'wave'dipole'with' the'earth'being'the' return ' half' • Due'to'poor'ground' conduc2vity'a ...