This antenna will go on a 70 foot tower. It is the prime WARC beam for my
station and is a backup for my large tribander that is at 100 feet. I do not
operate on 6 meters. I have narrowed the choice down to a Tennadyne Log
Periodic (T10) & the 3 element SteppIR
T10 SteppIR
coverage 13 - 33 mHz 14 - 52 mHz
boom length 24 ft 16 ft
claimed gain 6.1 dBd 4.9 - 6.3 dBd
HPBW 52 degrees 29 - 34 degrees
FB ratio 15 - 25 dB 15 - 42 dB
weight 49 lb 42 lb
wind area 10.1 sq ft 6 sq ft
max SWR 1.7 : 1 1 : 1
moving parts? no yes
electrically reversible? no yes
Forget price for the moment.
Both cover the bands that I am interested in.
Gain appears to be similar - it is a function of boom length - correct?
HPBW is less on SteppIR but how do they do that with a shorter boom?
FB is claimed better on SteppIR
SteppIR's claim to fame is a 1 : 1 SWR at all frequencies. What does a flat
SWR at 1 : 1 give me in the real world? More watts transferred to antenna?
Is this a stronger signal at the DX stations QTH? Or what?
The SteppIR has moving parts but I have not heard an outcry that they are
not reliable.
I am a DXer and sometime contester.
Which one do I choose?
Thanks in advance ....
73, Bruce K1MY
|