Antenne à 8 bandes sur le terrain pour 80,40 (30) 20,17, 15,12 et 10 mètres.
Puissance maximale: 100 WATT PEP SSB, 15 WATT DIGITAL.
Longueur: 40 mètres.
Boîtier: ABS IP65
Connecteur BNC en téflon.
Tous les matériaux de fixation sont en acier inoxydable.
Un syntoniseur d’antenne n’est requis que sur la bande des 30 mètres.
Toutes les mesures pour cette antenne ont été prises en champ libre.
Nous utilisons 5 mètres de câble coaxial pour un isolateur de ligne.
De l’isolateur de ligne à l’analyseur, nous avons utilisé 10 mètres de câble coaxial RG58.
Le boîtier du réseau d'antenne était placé à 4 mètres du sol.
La longueur du fil d’antenne au réseau correspondant est de 40 mètres et connectée à un mât de 12 mètres au sommet, à la manière d’un sloper.
Revues
As a conclusion beforehand: The antenna is the burner par excellence.
Only recently I could achieve super results with only 40W power at the IARU1 SSB Fieldday. I have succeeded in some DX connections (K3, BY, JA, ...). Likewise, within EU from some stations quite values 59+20 were given to me.
I personally recommend to operate the antenna according to the technical description by Werner Schnorrenberg (DC4KU) -> see Tech Info. With a line insulator and the appropriate mounting height, the antenna works perfectly.
Thanks for the great product!
73, de Volker, DG1VM
In all setups so far, I've run it as a sloper, with the match box at 5m high and the far end approximately 7-10 meters high strung up via a tree. I feed the match box with 5m of M+P Hyperflex 5, then into an Alpha Delta ATT3G50U attached to a ground stake, then the HyEndFed Portable Mini 200w Line Isolator, 5 more meters of coax and finally the radio, a Yaesu FT-891.
The FT-891 has no internal tuner, so running this antenna direct is a treat. SWR in reality is a bit better than advertised. I observe an 80m bandwidth (2:1 to 2:1) of about 250 kHz for each tuning jumper. I usually choose the 3.7 MHz jumper as most of time I work the left hand side of the Canadian phone area. I will note that with the 3.7 MHz jumper in, 40m SWR does favor the lower side of the band.
Signal reports on phone have been fantastic running 80 watts. From South central British Columbia, I'm working stations on the East coast of Canada and all through the USA. Build construction of the antenna is very good - this weekend it survived some rather high winds and over the winter, snow has been no problem for it.
I should comment that the antenna is not permanently installed. It's only used on weekend camping trips which offer a chance to get out into S0-S1 noise areas. I will be experimenting with setting the far end higher in the trees this spring.
Thanks Ron for the beautiful build and tune. It's a pleasure each time to setup and take down the antenna. The supplied antenna storage reel and pouch are super handy as well.
73 and thanks,
Mike VE7KPZ
Sorry the bad English.
73 de Manfred, HB9FLU