2m calculator

Builds a 2m Yagi from Recycled Trash - 2m Yagi built from parts found in the trash by N0EQ

17 elements 144 MHz Plus2 LFA Yagi Priority listing - No other 2M antenna comes close in performance to these Plus2 Yagis, commercial or otherwise.

19 elements Plus2 LFA Yagi for EME Priority listing - A Low-Noise Urban 19 element Plus2 LFA Yagi for 144MHz, check the VE7BQH list, no other 2M antenna comes close in performance. You can build it yourself for free

Online Dipole Antenna Calculator - Online calculator and construction instructions

VSWR Loss Calculator - This calculator is designed to give the efficiency loss of a given antenna, based on the input of VSWR (voltage standing wave ratio) and other subsequent factors

4:1 coax balun design - Online calculator for a 4 to 1 coax cable balun

Broadband Dipole 2MHz o 30MHz with no ATU - A broadband travelling wave dipole for HF bands, whose VSWR is less than 2:1 from 3 to 15 MHz and does not exceed 2.6 to 1 from 2.3 to at least 30 MHz

RF Transmission Line Loss Calculator - This calculator computes the matched line loss for a transmission line using a model calibrated from data for the transmission line types built in to the calculator. It also gives an estimate of the mismatched loss if the mismatch is specified.

Build a 2 Meter DDRR for Mobile - This is a story of an antenna and its modification over time into better forms By W5GVE

Twoband-Antenna for HT - Homebrew a 2m/70cm portable or mobile whip antenna for your HT or mobile radio

N0EQ Trashbeam - A 2m, 6 element beam built from neighborhood garbage

13el 50MHz Low Noise LFA Yagi - A Monster 13 element 6M LFA Yagi with flat SWR, 50 Ohm direct feed and minimal side lobes

The Mountain Thunder Radio Group - Mountain Thunder CB Radio Group is a group of CB SSB operators that started in the Pacific Northwest, Washington State.

TACLog - Tac Log is a free input format log book for VHF/UHF/SHF contests. Where most other programs dictate the order and format of the input data during contesting, TACLog gives you freedom of operation, both on the air and on your computer. EDI format and Region 1 rules compliant.

D-PRS Message Calculator - This page calculates the necessary GPS message (C1 message on most Icom radios) to use your Icom radio in GPS mode (not GPS-A mode) with D-PRS.

Calculate azimuth and elevation - Use this online calculator if you need to know your azimuth/elevation relative to a satellite

GAP Titan Product Reviews - Covers 10m 12m 15m 17m 20m 30m 40m and 100 KHz on 80m, & WARC Eham Reviews

Microwave Antenna Design Calculator - Available to run on all major operating systems, this free calculator provides quick estimation of antenna size required for a given gain and frequency.

Cantenna Calculator  ^updated - A circular waveguide calculator for designing cantennas include source code and windows executable by lincomatic

SuperSmith - Program to mechanize Smith Chart operation This graphics-intensive program is a valuable transmission-line calculator for both advanced and beginning users. Based on the venerable and highly intuitive Smith chart, it provides high-accuracy computations without recourse to paper, compass or straightedge.

Javascript Programs for Amateur Radio - GØHZK javascript calculators for ham radio, distance calculator, locator calculator, UTM calculator

20 W linear amplifer for 2 meters band - A basic VHF power amplifier suitable for 2M (144-146 Mhz) the output power vary from 3 to 25 Watts By VU2RAR

2 meters Power Amplifiers - Several 144 MHz Power Amplifier by YT1AR using GI7B GS31B GS35B GU34B

Electronic calculator - Some simple electronics calculator in javascript

Return Loss, SWR, Power Gain and Loss Calculator - A neat tool for your daily ham activities around the shack