Boom Length is just about 5 feet and power rating is 500w. The Antenna Farm : HF/6 Meter Beam Antennas - VHF & UHF Mobile Radios Radio Accessories.This is a 2m and 70cm small yagi consisting of 5 Elements on 2m and 8 Elements on 70cm, for a claimed gain of 10 dBi. Similar in construction to the X200A dualband. Design with High Gain Due to high quality material use and advanced process design18511 CR 304 St. Note: Antenna of your Walkie-Talkie/Transceiver should be detachable. VHF/UHF(136-174 / 400-470Mhz) This high performance aluminum alloy dual band Yagi antenna is suitable for almost all Walkie-Talkies/Transceiver with frequency VHF/UHF.

The manual states:'Covers 144 to 146 MHz and 420 to 440 MHz, which is the entire band in Europe. The 2m driven element is also the 70cm driven element. A Simple & Cheap Dual band antenna will save you having two different antennas for UHF and VHF.Buy TWAYRDIO 144/430MHz Yagi Antenna 100W Dual Band 2M 70cm High Gain Aluminum Alloy Yagi Antennas with UHF Female Connector for VHF UHF Mobile Radio.It is an unusual, but not unknown, single element feed designed by DK7ZB. Introduction: Quarter Wave Dual Band VHF/UHF Ham Radio Antenna by Asni Nor Rizwan. By asni73 in Circuits Wireless.

In fact, I am using it in vertical polarization. The antenna works fine with either polarization. They will NOT function for the American FM Simplex and Repeater band sections of 146 - 148 MHz and 440 -450 MHz.'This is a bit misleading.

This is not required, but I like a choke feed on an antenna like this.SWR in House varied all over the place, but I could find places to point antenna where SWR would be 1.1 to 1 on 2m and 1.5 : 1 on 70 cm.On top of tower, fixed 15 deg elevation, vertically polarized on 1.5' diameter fiberglass cross boom. I used LMR-400 Utra-Flex for the pigtail coax feed. I also put 5 ferrite snap-on chokes at the feedpoint and supported the coax about 1/2' above the boom (to keep the ferrites from touching the boom). Pay close attention to the element lengths, as they DO NOT get smaller back to front on 70 cm side.Keep pigtail coax for feed as short as possible (one inch or less of leads), or you will lower the resonant freq of the antenna. Basically for the satellite uplink (70cm) nd downlink (2m).Solid Construction, Easy to Assemble if you have the right tools (7 mm thin socket a big help). I amusing 145.700 and 435.1 or so.

Be sure to use duplexers to prevent your uplink RF from getting into your 2m downlink. Now I have a Q5 signal 10 dB out of the noise at 0.1 deg Elevation on all birds.This is an EXCELLENT satellite antenna. I get perfect wx image recordings at any elevation > 3 degrees! (NOAA-15,18,19)I am using an ARR 2m Gasfet Preamp in the shack, which also works well on the Wx Sats.I used to have to wait until > 30 deg EL to get a signal into the birds due to vegetation losses which are very bad on 70cm. This includes CAS-4A, 4B, XW-2A, 2B, 2C, 2F, AO-91, AO-92A big plus: it receives NOAA wx birds at 137.xxx beautifully. 3.x software.I now hear every bird at 0.1 deg Elevation at AOS.

Dual Band Vhf Uhf Yagi