Dear John I am in the same category. I have only one antenna for all HF Bands. I am first licenced on April 2002. My antennna placed on a flat roof, about 10X18 m. All the roof is sealed with bituminus membrane, that covered with aluminum foil, this is my "ground". The antenna till 2010 was a toploaded vertical 15m. The capacity hat was 2 wires 10m each. The angle between vertical and each wire was 50 deg. Below the hat was a trap 100uH/100pF. The antenna was cut for 1870kHz. Today I have the same vertical radiator and groynd, but the capacity hat consists from 4 wires, 10m each, without any coil or trapp. On the base of antenna there is an auto coupler that tune the system on any HF Band. From 2015 till today I am not very active on any band. My main interest is topband. My activity on VHF (Hi-Hi), 17M and up, was during some main contests. The results of my activity (LOTW+Paper) are: ALL BANDS 269/40 160 M 142/26 80 M 161/28 40 M 197/38 30 M 149/34 20 M 170/36 17 M 75/26 15 M 101/30 12 M 24/11 10 M 74/24 There is not some receiving antenna, but from time to time a random wire placed for receiving. The helically wound is a very poor mono-bander antenna, that can't radiate more than a vertical of the same length, just a waste of time. I hope my information be useful for you. 73, Panos SV1GRD
------------------------------ Message: 7 Date: Sat, 3 Feb 2018 08:45:44 +0000 (UTC) From: John Randall <[email protected]> To: "[email protected]" <[email protected]> Subject: Topband: Best hf +top band antenna Message-ID: <[email protected]> Content-Type: text/plain; charset=UTF-8 Many people can only put up one antenna in a small garden which has to cover all HF bands, so what antenna would you advise that will cover top band to 10m. Perhaps a top loaded vertical or an inv L with loading coil on the top wire section. What about a helically wound vertical Inv L 73John Digitally signed mail - John? M0ELS ?The further a society drifts from truth the more it will hate those who speak it.? George Orwell _________________ Topband Reflector Archives - http://www.contesting.com/_topband
