Hi-Q Piranha -5/80


PIRANHA Antenna Specifications.



The NEWLY developed PIRANHA series of Hi-Q Antennas are the derivative of the Military On the Move HF mobile and fixed station antennas.

Major improvements:
                Hi-Impact Modified Polycarbonate coil housing

                Silver Plated # 12 propriety coil wire
                NEW disc with Silver Plated BRASS balls for precision tuning.
                Lower mast is 2’ long, black anodized, OR 1.5 inch Stainless Steel.
                Silver Plated WQD is installed at no extra cost.
                Mounting hardware Included.

Remotely Tunable 10 thru 80 meters

This is the LATEST innovation in HF mobile antennas! It is the PATENTED version of the standard Hi-Q Series of HF mobile and base antennas. The loading coil has 9.5" usable travel with approximately 350 uH inductance.

Mechanical details:

Lower mast, below coil:: 2' x 1.5"
Coil Size: 5" diameter x 11.5" long, Lexan
Whip needed:

80m: 102" whip (not supplied). No CapHat needed, however it will improve Radiation Efficiency if used. 
80-10m: 36" to 60" whip (not supplied) 
Photo Shown is: Hi-Q-5/80 RT with 2' Extension Rod and 32" CapHat.

Weight: 8 lbs
Tuning and Controller Information:

RT: The RT version has a Precision 12VDC Gearhead Motor (NOT a screwdriver!!!)

Recommended Controllers:

  • All Hi-Q antennas now have REED SW and dual MAGNET installed to provide TWO pulses per revolution, utilized by the Hi-Q DC Controller.
  • Simple DPDT switch.


Coil data:

Inductance: 350 uH
Reactance: 3140 ohms
Wire size: 12 AWG
Coil diameter: 5"
Coil length: 10" (8" usable)
Pitch: 11
Coil "Q" 580
Loss resistance: 16 ohms
100 w I (rf): 2.1 amps


3.750 Mhz
Radiation Efficiency: 12%
Relative radiated power: -9.2 dB
Bandwidth for 2:1 VSWR 35 kHz
Coil "Q" 450
7.2 Mhz
Radiation Efficiency: 43%
Relative radiated power: -3.7 dB
Bandwidth for 2:1 VSWR 120 kHz
14.2 Mhz
Radiation Efficiency: 77%
Relative radiated power: -1.1 dB
Bandwidth for 2:1 VSWR 475 kHz

Excellent performance on the rest of the higher bands!

** NOTE: If this was a BRAND "X" screwdriver antenna it would have a Radiation Efficiency of Less than 1/10th watt (that is right, one tenth of a watt out of your 100 w. radio)... a real QRP set up. And, yes, QRP rigs get out, but with the Hi-Q Series antennas you WORK THE WORLD! 

Charlie Gyenes, W6HIQ, HA5CMG and VA7HIQ

QTY Description Price US Shipping
 Hi-Q Piranha -5/80 Antenna $625.00  $ 49.00  
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Hi-Q Piranha -5/80

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