Which Is The Best 450 Ohm Ladder Line

The MFJ-18H250 is a 250 foot piece of 450 Ohm twin lead ladder line. Two 18 gauge solid (non-stranded) copper-clad steel. Its insulated and spaced by heavy duty black polyethylene.

Multi-band center-fed dipole antenna capable of 1500 Watts. It consists of 52 feet flat-top fed with 17 feet of 450 Ohm matching section ending in an SO-239 coax connector.

MFJ-1778 – G5RV Wire Antenna – Multi-Band center-fed dipole antennas. These are multi-band, center-fed dipole antenna capable of 1,500 watts. Designed as 3/2 wavelength antennas for 14 MHz, they provide reasonable performance on many other bands. They cover all bands from 80-10 meters with a wide range antenna tuner. They are 102 ft. long and are designed to be used as an inverted vee or sloper to be more compact. Specifications: Assembled Wire Antenna: Yes Wire Antenna Type: Multi-band, non-resonant Antenna Power Rating: 1,500 Watts Wire Antenna Length: 102.00 ft. Antenna Tuner Required: Yes Feedline Connection Type: UHF female, SO-239 Minimum Recommended Feedpoint Height: 35.00 ft. Wire Gauge: 14-gauge Center Insulator Maximum Rope Size: 0.375 in. Wire Antenna Weight: 2.90 lbs.

The ZS6BKW antenna is an optimized variant of the venerable old G5RV. Unlike the original G5RV, which requires an antenna tuner on all bands, the ZS6BKW / G5RV is capable of operating on 10, 12, 17, 20 & 40m bands, generally without a tuner, and with SWR readings usually at 1.5:1 or less. Using a tuner, 6, 15, 30 & 80m bands are attained with much higher efficiency than the original G5RV. Each Antenna is handmade to order with materials carefully tested & selected by Ni4L for quality & durability: Poly-Stealth 13 – machine crimped for permanent connection (92′), FLEXI 420-OHM LADDER LINE #16 AWG (40′), W2AU LL-TRANSULATOR, LADDER-LOC Center insulator, SS hardware & two small end insulators. Hanging the Z6SBKW/G5RV: The ZS6BKW/ G5RV is completely assembled and ready to hang. It requires about 92’ of space and should be hung around 40’ high or higher. It can be hung in a flat top or inverted V configuration. Unlike Windom and OCF Dipoles, the ZS6BKW / G5RV is a very forgiving antenna when it comes to nearby towers, trees, fences and other structures. IMPORTANT NOTE: As with all models of the G5RV antenna, the Optimized version also requires a minimum of 70 feet of 50-52 ohm coax to complete the matching network. Without this 70 foot of coax, the antenna will NOT function correctly.

102 ft. all band doublet covers 160-6 Meters with balanced line tuner. Super strong custom fiberglass center insulator provides stress relief for ladder line (100 ft. included).

Hy-Gain AV-18VS – 10/12/15/17/20/30/40/80 Meters HF Vertical Antenna. The Hy-Gain Model 18V-S is a trapless, vertical antenna which is manually tuned to any band, 10 thru 80 meters, by a simple adjustment of the feed point on the base inductor. It is designed to be fed with 50 ohm coax, and works efficiently for DX or local contacts. It now features stainless steel hardware for all electrical and most mechanical connections. This antenna is self-supporting and can survive winds in excess of 80 mph. It is highly portable and knocks down to an overall length of 5 feet. Specifications: Coverage: 10, 12, 15,17, 20, 30, 40, 80m Max Power: 1500 Watts PEP Input Connector: Lug Height: 18 feet Weight: 4 pounds Wind Survival: 80 MPH Mast Size: 1.5 in – 1.625 in. OD

The RadioWavz G5RV Jr. antenna measures only 51 feet across the top for 40 thru 6 meter operation, and is fed at the center through a low loss 450 ohm ladder line. The interaction between the radiating section and the feed-stub makes the G5RV Jr. usually easy to match on all-bands from 40 meters through 6 meters with good antenna tuner. (An antenna tuner is required to make this antenna work on multiple bands)This antenna is made of high quality UV insulated 14awg. stranded wire on the top and a heavy duty 300 ohm twin lead. This 300 Ohm twin lead is made with heavy duty PVC made to last in the most inclement of environments. The twin lead terminates into a SO 239 connector.Band width: 40 meters to 6 meters (With a tuner)Antenna Width: 51 feet end to end 14awg. UV insulated stranded wire.Antenna hight: 14 feet 450 ohm ladder linePower: 1500w

G5RV HF Antenna

Covers all bands, 160-10 Meters with antenna tuner. 102 feet long, shorter than 80 Meter dipole. Use as inverted vee or sloper to be more compact. Use on 160 Meters as Marconi with tuner and ground. Handles full legal limit power. Add coax feedline — get on the air! The G5RV antenna is a multi-band center-fed dipole antenna capable of 1500 Watts. It was originally designed to operate as a 3/2 wavelength center fed antenna for 14 MHz, but amateurs soon discovered it would offer reasonable performance on many other bands. The MFJ-1778 (G5RV) consists of a 102 foot flat top fed with a 32.5 foot 450 ohm matching section ending in an SO-239 coaxial connector. The 450 ohm balanced transmission line serves as a 1:1 transmission line transformer on 14 MHz. The SWR is approximately 2:1 at 14 MHz. The same balanced line section acts like a transmission line impedance matching section on the other HF bands. This antenna generally requires the use of a suitable matching network (antenna tuner) since the SWR of the G5RV is almost certainly not 1:1 on any band. The use of a tuner will guarantee maximum performance from solid state exciters. The G5RV is a balanced antenna that is fed by an unbalanced coaxial line. This feed system causes unwanted parallel RF currents to appear on the shield of the coaxial feedline. A choke type balun should be used with this antenna to eliminate or reduce the undesirable parallel feedline currents. Failure to use a choke balun may result in RFI, RF feedback, or other symptoms of RF “in the shack”.

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