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)
- Max. Overall Length: 54-Inches | Coil Section: 27-Inches | Whip: 27-Inches
- 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
Other Details
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Product Reviews
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OPEK HVT-600 / Not a bad antenna!
I have had this antenna for over a month and have to say I am well please with its performance! I am using it mobile with a Yaesu FT-818 (6 watt transceiver) and get 55 signal reports with it regularly. Made a contact with Washington state with a signal report of 55 while I was mobile. It’s easy to set up and tuning is not as bad as some antennas I have used. I am using an LDG auto tuner and with it super low SWR. But with out the tuner I can easily get 1.3:1 constantly. In my opinion it was a good purchase for the money. The shipping from American Radio Supply was not the fastest but communication with them was prompt and polite. Will be doing business with them again! KF4PYS 73
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Thank You!
This antenna is excellent including UHF amateur band.