OPEK HVT-600 - 10 Band High Performance HF VHF Ham Radio Antenna

Product Description

OPEK HVT-600 - 10 Band High Performance HF VHF Ham Radio Antenna

The OPEK HVT Series Mobile Antennas are constructed of a rigid fiberglass core. This core is helically wound with copper wire and it is tuned to various band "tap" points.

The OPEK HVT Antenna is a shortened HI Q design and therefore it has a narrow SWR bandwidth, particularly on 80 meters.  When measuring SWR adjust the SWR meter slowly across the band... no more than 5 kilohertz at a time.  Otherwise, you may miss the resonant spot.

The OPEK HVT Series Antennas are intended for mobile installations; however, it is often used as a fixed base station or portable antenna.  Below you will find a few installation tips.

For back packing (QRP) the antenna disassembles in two section, the coil section which measures 27-inches long and the whip (stinger) which also measures 27-inches long. 

• Frequency Range: 3.70 MHz (80M Band)
• Frequency Range: 7.05 MHz (40M Band)
• Frequency Range: 10.10 MHz (30M Band)
• Frequency Range: 14.15 MHz (20M Band)
• Frequency Range: 18.20 MHz (17M Band)
• Frequency Range: 21.10 MHz (15M Band)
• Frequency Range: 24.95 MHz (12M Band)
• Frequency Range: 28.50 MHz (10M Band)
• Frequency Range: 50.50 MHz (6M Band)
• Frequency Range: 146.0 MHz (2M Band)
• Polarization: Vertical
• Impedance: 50-Ohms
• Input Power: 200-Watts
• Connector: PL-259 (Requires SO-239 Mount and Cable)
• Instruction Sheet: Click Here

• Use OPEK AM-204-7LA or similar UHF (SO-239) mount.
• Mount the antenna as far above the vehicle's roof line as possible.
• A solid grounding connection MUST be achieved between your antenna mount and vehicle ground for proper operation and performance.
• DO NOT rely on the battery ground. The mount must be solidly connected to your vehicle's frame for proper operation and performance.
• VERIFY your ground by using an ohmmeter to check for continuity between ground and the antenna's mount after installation. Resistance should measure < 0.8 ohms.
• If necessary, remove paint or coatings to ensure proper continuity of ground connections.
• Although you can achieve a solid ground without the use of a braided grounding strap, it is highly recommend that you use a grounding strap.
• DO NOT mount next to vertical metal surfaces (i.e., vehicle's body, doors, trunks, etc.).
• Leave at least 15-inches of open air space between the antenna and adjacent vertical metal objects.
• Use low-loss 50-ohm coaxial cable with at least 95% shield. A stranded center conductor recommended.
• Do not use foam dielectric coax cable. It is prone to moisture absorption and may deform in hot environments.
• Route your coaxial cable as far as possible from the your vehicle's electrical systems to avoid interference.
• Tune your OPEK HVT Antenna according to the instructions provided with the antenna.
• Band tapping jumper should be either left hanging loose or wound counter-clockwise and evenly spaced along antenna.

• For fixed installations, use OPEK AM-403-UHF stainless steel mounting bracket, or similar.
• Mount the antenna as far above your roof line as possible.
• A 20-foot counterpoise wire, or other suitable ground plane is REQUIRED for proper operation and performance. Keep counterpoise wire at least 2-feet over earth.
• A solid grounding connection MUST be achieved between your antenna mount and earth ground for proper operation and performance.
• VERIFY your ground by using an ohmmeter to check for continuity between ground and the antenna's mount after installation. Resistance should measure < 0.8 ohms.
• If necessary, remove paint or coatings to ensure proper continuity of ground connections.
• Although you can achieve a solid ground without the use of a braided grounding strap, it is highly recommend that you use a grounding strap.
• DO NOT mount next to vertical metal objects (i.e., metal siding, etc.).
• Leave at least 15-inches of open air space between the antenna and adjacent vertical metal objects.
• Use low-loss 50-ohm coaxial cable with at least 95% shield. A stranded center conductor recommended.
• Do not use foam dielectric coax cable. It is prone to moisture absorption and may deform in hot environments.
• Route your coaxial cable as far as possible from electrical systems to avoid interference.
• Tune your OPEK HVT Antenna according to the instructions provided with the antenna.
• Band tapping jumper should be either left hanging loose or wound counter-clockwise and evenly spaced along antenna.
• HVT-600 / 40M Mod / Hack by David - VK4ICE - Click Here