Hy-Gain DX-77A
SKU Part Number: DX-77A
The "DX-77-A" is an omnidirectional, self-supporting, automatic-bandswitching vertical radiator which operates on the 10, 12, 15, 17, 20, 30 and 40...
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£459.95 £383.29
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The "DX-77-A" is an omnidirectional, self-supporting, automatic-bandswitching vertical radiator which operates on the 10, 12, 15, 17, 20, 30 and 40 meter Amateur bands. No ground radials are used with the DX-77-A. The DX-77-A design is based upon an off-center-fed dipole, sometimes called a "Windom" antenna. Highefficiency high-power traps are used to isolate the active sections of this antenna.

The DX-77-A uses a heavy-duty tiltable mast clamp which will accept masts of up to 2 118" inches O.D. The entire antenna may be easily raised and lowered for tuning purposes and for recreational - vehicle (RV) installations. The DX-77-A also features an overall length of 29 feet (8.8 m), which contributes to exceptional bandwidths on 40 and 20 meters.

 
Frequency Bands: 2:1 VSWR Bandwidth
40m 7.0 - 7.3 MHz 100 KHz min.; 150' KHz typ.
30m 10.1 - 10.15 MHz 100' KHz min., 150 KHz tpy.
20m 14.0 - 14.35 MHz 200 KHz min., 250 KHz typ
17m 18.068 - 18.168 MHz 200 KHz min., 250: KHz typ.
15m 21.0 - 21.45 MHz 400 KHz min., 500 KHz typ
12m 24.89 - 24.99 MHz 300 KHz min., 400 KHz typ.
10m 28.0 - 29.7 MHz 1500 KHz min., 1700 KHz typ.

VSWR' of Resonance............................. .. .....................................................less than. 1.5:1
Maximum Power (at 95° F) ............................................ 750 watts ave., 1500 watts PEP
Gain..... . ........................................unity gain (compared to half-wave vertical dipole)
Input Impedance.....................................................................................................50 ohms

Total Height.……........................ ......................................................... 29 feet (8.8' m)
Bottom Radial Elements .........................................................................4 each, 5 feet (1.5 m)
Allowable Mast O.D. . ..................... ................................1.75 - 2.125 inches (44- 53 mm)
Recommended Masts8 to 10 foot length) .....…........ Aluminum, 2 inch O.D., .125 wall min Steel, 2 inch O.D., :058 wall min.
Weight................... ... ............................................……………………... 25 lbs. (11.35 kg:)
Wind Area . ... .... ............. ....'..............………………………........ 1.9 sq. ft. (.1767 sq. m.)
Maximum Wind Speed (unguyed) ........................................................ 60 mph ( 96.77 Kmph)

Download the manual here. 
Bands 10, 15, 17, 20, 30, and 40 Meters
Max Power 1500 Watts PEP
Input Connector SO-239
Mechanical Specifications
Height 29 feet
Weight 25 pounds
Wind Survival 60 MPH (no guy)
Recommended Mast Size 1.75 in - 2.125 in. OD

Shipping:

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Returns:

If you have any equipment that needs to be returned to Martin Lynch & Sons, please fill out the form below:

Click here for returns form

Upon receipt of goods you have 14 days to return goods however the goods must be returned in original packaging and care must have been taken with the goods you wish to return. Under distance selling regulations you are not entitled to any refund on carriage charges or modification charges made at your request.

Warranty Terms and Conditions

Outside of the 14 faulty return period, returned items cannot be accepted, unless covered by manufacturer's warranty. We will repair as much as possible on site however in exceptional circumstances products may have to be returned to the manufacturer of distributor.

For repairs/replacements under manufacturer’s warranty for any item please download a ML&S return form from the link above and return to ML&S with the faulty product.

International Warranty information

Warranty service for items we sell is available in the U.K. only, unless otherwise noted. It is your responsibility to pay freight for returned items to the U.K. and back to you for desired warranty coverage. All of our NEW products come with a minimum 12 month warranty, (Yaesu & Icom 24 months), with up to 90 days on second-hand equipment. Items returned for service must state "returned goods for repair" on the return air waybill or U.K. import customs duties apply and will be added to your invoice. For more info about returning items please contact our customer help desk, [email protected]