Tag: antenna

MFJ Octopus Antenna, MFJ-2100 Making Contacts
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MFJ Octopus Antenna, MFJ-2100 Making Contacts

VHF 145 MHz Low Loss Bandpass Helical Filter April 29, 2015 No comments     Low Loss Bandpass by Mile Kokotov Basic design of the…

2018 QST Antenna Design Competition Winners Announced
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2018 QST Antenna Design Competition Winners Announced

ARRL has announced the winners of the 2018 QST Antenna Design Competition. “Dozens of entries were received, but only three could win,” said QST Editor Steve Ford, WB8IMY. Requirements…

Jim Heath W6LG Discusses Antenna Gain, Yagis and Rotators
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Jim Heath W6LG Discusses Antenna Gain, Yagis and Rotators

Jim Heath W6LG talks about antenna gain using a light bulb. He shows a simple yagi and 2 brands of antenna rotator Antenna Rotatable 160…

Green Egg for Ham NMO Antenna Mount Cover – Ham Radio Q&A
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Green Egg for Ham NMO Antenna Mount Cover – Ham Radio Q&A

“The Green Egg for Ham is a cute name for a 3D printed cover for your NMO antenna mounts. The Motorola style NMO mount is…

SteppIR UrbanBeam and SDA 2000 –  full review (HF antenna)
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SteppIR UrbanBeam and SDA 2000 – full review (HF antenna)

SteppIR UrbanBeam “This is a full review of the SteppIR UrbanBeam (multiband HF antenna) with the SDA 2000 controller (OptimizIR). It’s part 3 of a…

Elecraft AX1 antenna
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Elecraft AX1 antenna

Elecraft AX1 antenna The Elecraft AX1 is a compact telescoping whip that disassembles into two 6” (15 cm) pieces, so it’ll fit into small “grab &…

Elecraft AX1 Multi-Band Whip Antenna
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Elecraft AX1 Multi-Band Whip Antenna

Elecraft AX1 – Portable HF antenna Elecraft AX1 Ultraportable 17/20 Meter Antenna System (FAQ) Q: What is the AX1? A: The AX1 is a dual-band (20…

20′ DX Flagpole Antenna | OCF HF Vertical Dipole | 3.5 to 50 MHz No Radials, Stealth, Portable
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20′ DX Flagpole Antenna | OCF HF Vertical Dipole | 3.5 to 50 MHz No Radials, Stealth, Portable

OCF HF Vertical Dipole Higher performance, HF Multiband DX Flagpole Antenna covering 3.5 to 50MHz with NO radials sound like relief for your CC&R and HOA…

JK2040-Hawk – Yagi antenna of 5 elements for the 20 m band and 3 elements for the 40 m band on a 40 foot (12.19 m) boom
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JK2040-Hawk – Yagi antenna of 5 elements for the 20 m band and 3 elements for the 40 m band on a 40 foot (12.19 m) boom

The JK2040 Hawk has phenomenal performance characteristics on 20m and 40m. The 38ft boom 20m Yagi has been optimized for high gain and a good…

Which Is Best? Fibreglass or Alloy Antenna

Video:YouTube/fredintheshed1 The age old question…. Fibreglass certainly can last longer and won’t bend but some say they bring in more noise….? I’ve been very happy…

Attic Mounted HF Loop Antenna In HOA, Does It Work?
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Attic Mounted HF Loop Antenna In HOA, Does It Work?

“I went to my friends house to check out his setup and get him up and running on some HF digital modes. A lot of…

2 Meter VHF Quarter Wave Ground Plane Antenna – Ham Radio Q&A
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2 Meter VHF Quarter Wave Ground Plane Antenna – Ham Radio Q&A

“Are you looking for a fun and easy antenna project? The 1/4 ground plane might be just the ticket. This particular ground plane is constructed…

Performance Test of MFJ-1846 Six-Band Hex-Beam Antenna
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Performance Test of MFJ-1846 Six-Band Hex-Beam Antenna

“Performance results of MFJ-1846 Six-band hex-beam antenna. The antenna shows great directionality and ample gain. The SWR doesn’t quite cover the 20 meter, 10 meter,…

Antenna Rotators  “ARRL The Doctor is In” podcast. Listen…and learn!
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Antenna Rotators “ARRL The Doctor is In” podcast. Listen…and learn!

“Antenna Rotators” is the topic of the new (August 2) episode of the “ARRL The Doctor is In” podcast. Listen…and learn! Sponsored by DX Engineering, “ARRL…

QST Antenna Design Competition Submission Deadline Looms
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QST Antenna Design Competition Submission Deadline Looms

The deadline to submit a design for the 2018 QST Antenna Design Competition is just ahead — September 1! The competition challenge is to design the best…

FA-VA5 600MHz Vector Antenna Analyzer Kit
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FA-VA5 600MHz Vector Antenna Analyzer Kit

Introducing the new high precision 600 MHz Antenna Analyzer for measurements of antennas, cables and other one port devices. The new VA5 is a portable,…

2 Days Off Grid – /P Ham Radio to Japan FT8 Random Wire Antenna
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2 Days Off Grid – /P Ham Radio to Japan FT8 Random Wire Antenna

“Hello Operators In the previous videos from this excursion, we covered portable off grid battery and solar power, the Raspberry Pi for data communication over…

Using the MFJ-1788 Mag Loop Antenna Horizontally
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Using the MFJ-1788 Mag Loop Antenna Horizontally

“I test the MFJ-1788 in a horizontal position on my rooftop. The performance is great on 20m. I used an MFJ Cobweb antenna as the…

Antenna and Analyzer Questions by KE0OG
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Antenna and Analyzer Questions by KE0OG

“New Ask Dave format with Dave Casler and with Ask Dave Editor Trevor Oman, takes on questions about antennas and analyzers.” Antenna Basics of building…

Alaskan Arrow LEO Satellite Antenna – 4 Elements for 2 Meters crossed with 10 Elements for 70 cm
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Alaskan Arrow LEO Satellite Antenna – 4 Elements for 2 Meters crossed with 10 Elements for 70 cm

The Alaskan antenna is meant for those who live in the higher lattitudes and need a little more gain. For us mere mortals who live…

Review of RigExpert AA-55 ZOOM Antenna and Cable Analyzer
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Review of RigExpert AA-55 ZOOM Antenna and Cable Analyzer

“This video is a comprehensive review of the functions and operation of the RigExpert AA-55 ZOOM Antenna and Cable analyzer. This lightweight portable analyzer can…

2 meter vertical antenna built with coat hangers
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2 meter vertical antenna built with coat hangers

2 meter vertical antenna built with coat hangers An Ultra-Simple 2-Meter Antenna You’ll get J-pole performance from this base station vertical antenna built with coat hangers…

William Welch K1IOC  – Rescued from atop ham radio antenna
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William Welch K1IOC – Rescued from atop ham radio antenna

With tree blocking ladder truck access, fire department executes rope and harness retrieval.   By Rich Saltzberg An 80-year-old Edgartown man was rescued Monday morning by…

2m 18 elements XPOL Yagi antenna PA144-XPOL-18-5
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2m 18 elements XPOL Yagi antenna PA144-XPOL-18-5

2m – 144MHz Dual Polarity Yagi Antenna PA144-XPOL-18-5. Wideband operation 144 – 145 MHz. Cross Polarized “XPOL” Yagi antenna with excellent mechanical properties. Electrical Specifications…

IARU Secretary Presents ARRL Antenna Book CD During Visit to Federation of Radio Amateurs of Cuba

Fonte originale con articolo completo Articolo IARU Secretary Presents ARRL Antenna Book CD During Visit to Federation of Radio Amateurs of Cuba su Etere Blog…