Hi-Q-Antennas for HF Ham Radio Mobile Operation KEYWORDS: W6HIQ, HA5CMG, VE7BOC, HF mobile antennas, mobile antenna, screwdriver antenna, coils

The Hi-Q-5/80

Manual Tune (MT) or Remotely Tunable/Motorized (RT)
6 thru 80 meters

So is BIGGER better? Yes and NO! On 80 M the ideal coil diameter is LESS than 6". Once past 5.5" diameter, one runs out of the COIL diameter to LENGTH ratio and the coil "Q" begins to fall down. Therefore I have chosen the 5" diameter LEXAN coil form with 7 TPI spacing with the # 12 wire and 6 TPI with the .125" dia. wire.

The CAP and Base are CadCam designed and CNC machined out of 6061T6 aluminum billet or Stainless Steel. The lower mast is 1.5" dia. SS tubing with SS mounting base with 3/8-24 thread. Cap has also 3/8-24 threaded hole for the whip. The Hi-Q-5 is designed to be used with the Hi-Q CapHat for MAXIMUM radiation Efficiency on 80 M. It is optimized for the 80 M band, however it performs great on the 60-40-20-15 and 10-meter bands. Two versions are produced, military, Hi-Q-5M And the Hi-Q-5/80 for the ham bands.

It is extremely rugged with a LIFE time guaranteed. 12 or 24 VDC, remotely tunable.

Antenna height: 3 ft, no whip

Antenna weight: 7 lb (6061T6)

Technical and Electrical specs:

Resonant freq. Low: 3.7 MHz

Base length: 2 ft

Whip length @ 3.7: 7.6' with Hi-Q-CapHat

Radiation Resistance: 1.1 Ohm

Electrical length: 16 degrees

Degree-amp area: 10.4

Ground loss (std inst): 4.0 Ohms

Antenna "Q": 100+

Power handling: SSB legal limit

Match with shunt coil

Coil Data:

Inductance: 115 uH (total coil)

Reactance: 1000 Ohms

Wire size: 12 AWG

Coil diameter: 5"

Coil length: 8"(6" tunable)

Coil Pitch: 7 TPI

Coil "Q": 620 (measured on HP 4342A)

Loss resistance: 2.4 Ohms

100 w I (rf): 3.6 amps

Performance:

Radiation Efficiency: 14 %

Relative Radiated power: -8.5 dB

Bandwidth for 2:1 vswr: 40 kHz

Resonant freq. Low:	3.7 MHz
Base length:	2 ft
Whip length @ 3.7:	7.6' with Hi-Q-CapHat

Radiation Resistance:	1.1 Ohm
Electrical length:	16 degrees
Degree-amp area:	10.4
Ground loss (std inst):	4.0 Ohms
Antenna "Q":	100+
Power handling:	SSB legal limit
Match with shunt coil

Coil Data:
Inductance:	115 uH (total coil)
Reactance:	1000 Ohms
Wire size:	12 AWG
Coil diameter:	5"
Coil length:	8"(6" tunable)
Coil Pitch:	7 TPI
Coil "Q":	620 (measured on HP 4342A)
Loss resistance:	2.4 Ohms
100 w I (rf):	3.6 amps

Performance:
Radiation Efficiency:	14 %
Relative Radiated power:	-8.5 dB
Bandwidth for 2:1 vswr:	40 kHz

TUNING METHOD

MT - Manual Tune model:

Knob at the base, sliding up/down.

RT - Remote Tune model:

MFJ-1922B or similar controller. ALL Hi-Q-Antennas now have a magnet to count rotations of the motor-output shaft. So, by adding an optional reed switch externally, you get a "pulse per revolution" for the MFJ-1922B or similar controller.
You may use a simple DPDT switch to tune the antenna.

Plug-n-Play Packages Available! (RT Remote Tune Model Only)

Package A

1 - Hi-Q-5/80 RT HF Mobile antenna
1 - WQD, whip quick disconnect
2 - Ferrite RF suppression cores

Package B

ALL of the above items in Package A, PLUS:
1 - GQD Giant Quick Disconnect, Alu.
1 - CapHat
1 - CapHat 1' ext. rod

Supply your own coax, two or four conductor cable and connector (power / turn-counting), ~4ft whip, controller or DPDT switch and antenna mount, and you are on the air!

Pricing and Ordering

QTY	Description	Price	US Shipping
	Hi-Q-5/80-MT Manual Tune	$450.00	$ 50.00
	Hi-Q-5/80-RT Remote Tune (Motorized) with PACKAGE A	$595.00	$ 45.00
	Hi-Q-5/80-RT Remote Tune (Motorized) with PACKAGE B	$650.00	$ 45.00
	Hi-Q-5/80 Military	$900.00	$ 50.00
Accessories Available! Click for Details!
All items professionally packaged in heavy wall tubing. US Shipping Rates are for USPS Insured Priority Mail. International Shipping is at cost quoted by USPS and will be added to your order.

Hi-Q-5/80 Photo Album

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