Log Periodic Dipole Array

Extreme Durability - Superior Performance

Original T-Series Models

Our original LPDAs have been field tested for decades with many early systems still on the air. Built to proven specifications, you can count on the same performance that has made Tennadyne the choice of discerning radio operators around the world. No moving parts or lossy coils, just rugged dependability.

* * NOTE – All LPDA systems require a choke to perform efficiently, whether you wind your own or purchase our fully terminated plug-n-play assembly. <-click here * *

Model	Coverage	Gain (dbd/dbi)	Boom Length	Elements	Longest	Turn Radius	Wind Load	Weight	Price
T6	13 – 30 MHz	5.10/7.24	12 FT	6	38 FT	20 FT	6.2	47#	$1,095
T7	18 – 32 MHz	6.2/8.3	18 FT	7	29 FT	16.5 FT	6.8	53#	$1,290
T8	13 – 32 MHz	5.80/8.34	18 FT	8	38 FT	20.9 FT	8	68#	$1,480
T10	13 – 33 MHz	6.10/8.24	24 FT	10	38 FT	22 FT	10.1	78#	$1,825
T11	13 – 55 MHz	5.80/7.94	24 FT	11	38 FT	21.5 FT	8.5	73#	$1,965
T12	13 – 33 MHz	6.50/8.64	30 FT	12	38 FT	24.6 FT	11.7	97#	$2,435
T28	50-1300 MHz	6.30/8.44	12 FT	28	10 FT	7.5 FT	3	38	$875

XD Models

Our XD models compliment the original LPDA design, but offer beefed up materials to support larger booms and elements, providing coverage down to 10MHz.

Model	Coverage	Gain (dbd/dbi)	Boom Length	Elements	Longest	Turn Radius	Wind Load	Weight	Price
T8.10-30XD	10 – 30 MHz	6.8/8.9	24 FT	8	53 FT	24.6 FT	11.7	78#	$2,590
T10.10-30XD	10 – 30 MHz	7.5/9.6	30 FT	10	53 FT	24.6 FT	13.7	98#	$2,935
T12.10-30XD	10 – 30 MHz	8.0/10.1	36 FT	12	53 FT	27.6 FT	16.21	115#	$3,375
T14.10-30XD	10 – 30 MHz	8.5/10.6	42 FT	14	53 FT	34.6 FT	18.7	145#	$3,940

High-Quality Aerospace Grade Materials

Setting the Standard for Performance and Durability

T8 in 50mph winds

Notice how the elements are swept back?

Whenever strong winds are expected, it’s best to point the boom into the oncoming wind to help disrupt and shed the wind off of the longer and more susceptible elements, and to minimize wind load.

The most draggy condition would be broadside to the boom.

We realize this isn’t always possible, just offering this information for anyone who might keep their eyes to the sky for such conditions.

T8 under 3/4″ of ice