Search Results for: g5rv

Implementation of G5RV inverted V using high strength aluminium MIG wire – 7 year review

This article continues on from Implementation of G5RV inverted V using high strength aluminium MIG wire documenting review after 7 years operation under a wide range of temperature, humidity and wind conditions. It adds some contemporaneous pics of some parts of the system. Support structure Above is a view of the steel mast (2021) with … Continue reading Implementation of G5RV inverted V using high strength aluminium MIG wire – 7 year review

Implementation of G5RV inverted V using high strength aluminium MIG wire – 5 year review

This article continues on from Implementation of G5RV inverted V using high strength aluminium MIG wire documenting review after 5 years operation under a wide range of temperature, humidity and wind conditions. Above is a view of the steel mast with the Inverted V G5RV rigged from the top of the 11m mast using a … Continue reading Implementation of G5RV inverted V using high strength aluminium MIG wire – 5 year review

Implementation of G5RV inverted V using high strength aluminium MIG wire – 12 month review

This article continues on from Implementation of G5RV inverted V using high strength aluminium MIG wire documenting review after 12 months operation under a wide range of temperature, humidity and wind conditions. Above is a view of the steel mast with the Inverted V G5RV rigged from the top of the 11m mast using a … Continue reading Implementation of G5RV inverted V using high strength aluminium MIG wire – 12 month review

Implementation of G5RV inverted V using high strength aluminium MIG wire – impedance measurements

This article continues on from Implementation of G5RV inverted V using high strength aluminium MIG wire documenting impedance measurements and voltage calculations. Impedance measurement Impedance was measured with an AA-600 looking into 500mm of RG400 then the Guanella 1:1 balun, then 9m of fabricated transmission line as described in earlier articles in the series. The … Continue reading Implementation of G5RV inverted V using high strength aluminium MIG wire – impedance measurements

Implementation of G5RV inverted V using high strength aluminium MIG wire

This article continues on from Workup of G5RV inverted V using high strength aluminium MIG wire and describes the implementation. Above is a view of the steel mast with the Inverted V G5RV rigged from the top of the 11m mast using a halyard though a purchase on a small gibbet to offset the antenna … Continue reading Implementation of G5RV inverted V using high strength aluminium MIG wire

Workup of G5RV inverted V using high strength aluminium MIG wire

This article is a workup of replacement of my 2mm HDC G5RV and feedline with high strength 1.6 aluminium MIG wire to evaluate practical issues with use of an aluminium conductor. The G5RV configuration is an inverted V, and although half a G5RV is 15m, the supports result in a 20m length of wire to … Continue reading Workup of G5RV inverted V using high strength aluminium MIG wire

Shack entry / ATU configuration for my G5RV with tuned feeder

At MFJ-993B on my G5RV with tuned feeder I discussed first impressions of the replacement ATU. This article documents the physical layout. The antenna is a G5RV with tuned feeders (Varney 1958). The tuned feeder is home made two wire line using 2mm diameter copper spaced 50mm. Above at the right, the open wire line … Continue reading Shack entry / ATU configuration for my G5RV with tuned feeder

MFJ-993B on my G5RV with tuned feeder

This article is an analysis of why my recently acquired MFJ-993B will not match my multiband antenna system on most bands above 20m. The MFJ-993B replaces an Ameritron ATR-30 which was capable of matching the antenna system on all HF amateur bands. A detailed analysis is performed 18.15MHz on the first problem band. Configuration The … Continue reading MFJ-993B on my G5RV with tuned feeder