[AARA] GCGmail] Optibeam 12-4 for sale

[Herman Campbell]

*Subject:* *[GCGmail] Optibeam 12-4 for sale*

Good morning all,
   I have the Optibeam 12-4 for sale. This version covers 40, 20, 15, 
and 10 meters with the 5kw balun.
The antenna is currently on the ground and disassembled into managable 
pieces.
This antenna  performed superbly and the specifications are spot on. 
Refer to the OptiBeam website for details.
Thomas DF2BO(owner) is very quick with email responces. The antenna is 
in very good condition and ready to be sold.
Home QTH is McDonough,GA.
Asking $1900.00 OBO.

73's,
Scott WEiSS N2WF
N2WF at bellsouth.net

OB12-4 		12 Element, 4 Band
		
Bands 		40 / 20 / 15 / 10
Gain (dBd) * 		3,6 / 5,2 / 5,9 / 6,8
Gain (dBi) ** 		10,5 / 12,5 / 13,5 / 14,5
F/B (dB) 		15 / 25 / 20 / 20
VSWR 		
40 m allgemeines setting: 		
7,00 - 7,05 - 7,15 		1,6 - 1,1 - 1,9
40 m USA phone setting: 		
7,15 - 7,20 - 7,30 		1,6 - 1,1 - 1,9
14,00 - 14,18 - 14,35 		1,4 - 1,1 - 1,4
21,00 - 21,25 - 21,45 		1,2 - 1,1 - 1,4
28,00 - 28,50 - 29,00 		1,5 - 1,1 - 1,4
		
Elements (number) 		12
Active Elements 		2 / 3 / 3 / 4
Max. Elementlength (m) 		14.9
Boomlength (m) 		7.6
Turning Radius (m) 		8.36
Feedlines (number) 		1 Coax 50 Ohm
Weight (kg) 		70
Windload at 130 km/h 		1.250 N / 1,56 m² / 16,8 feet²
		
Price *** 		2.699,00 EUR

* = average gain over dipol in free-space / for comparison: 2 el 
monobander 4 dBd, 3 el 5-6 dBd
** = average gain at 20m above ground (= dBd + 2.15 dB isotropic + about 
5 dB ground reflection)
*** = outside EU minus 19% tax - subject to change

*The OB12-4 is a high effective Yagi for the classical four bands 40, 
20, 15 and 10m, four monobanders on one boom.
*

  * The OptiBeam high Q air coil reduces the length of the 40m elements
    nearly lossfree down to a little bit below convenient 15 meters.

  * Due to the patented OptiBeam „direct coupled driver feed system“ and
    the especially developed „40m decoupling stubs“ a non compromise
    feed with a single 50 Ohm coaxial cable is achieved.

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