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W1BST 444.750

W1bst 444.750 is a repeater located on New Duran Ridge in New Duran, NH
W1BST 444.750 (+5000 khz I pl123) 70 cm band
Location: New Duram Ridge, elevation aprox. 1175′
Repeater: Motorola 1225 watts
Duplexers: Mobile Cell Wave
Antenna: Diamond X30 duel band with diplexer in line. Located aprox. 20′ off ground.
Link: Link to 147.0300 repeater on Bennett Hill.
What is a Diamond X30 Duel Band Antenna? It is a fixed station vertical antenna that operates on 2m/70cm frequency bands. The frequency band are 145/433MHz. It has a gain of 3/5.5dB and a max power handling of 150W. Its length is 1.3m. The construction of the Diamond X30 is made of fiber glass material. It is pre-tuned and fully weatherproof.
Special Features: | |
• Fiberglass radomes • Stainless steel hardware • Wide band performance • Factory adjusted – no tuning required • High wind rating • DC grounded |
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Specifications: | |
Band: | 2m/70cm |
Gain (dB): | 3.0/5.5 |
Max Power Rating: | 150 |
Wind Rating: | 135 MPH (no ice) |
Height (feet): | 4.5 |
Connector: | UHF |
Element Phasing: | 1-1/2l, 2-5/8l |
Remarks: Works well in areas where height and/or antenna restrictions are an issue. |
Improving your antenna is the most economical way to improve the performance of your station. Less than a hundred dollars spent on an improved antenna system will almost always provide better results than thousands spent on an amplifier unless you already have a top quality antenna system (100′ tower with a large highly directional antenna).
A good antenna system will allow you to work almost any station you can hear.
A good antenna is one that radiates all or most of the energy that is fed to it on a given frequency. This means, it resonates on the frequency in use. The most common antenna in use is the half wave dipole. A properly designed half wave dipole for a given frequency is considered a good antenna. However, if one wants a better performance, an antenna with a ‘gain’ over the dipole needs to be used. For example, using 100 watts output power fed to a half wave dipole is roughly the same as using 10 watts fed to a 3-element yagi antenna.
Antenna gain indicates how strong a signal an antenna can send or receive in a specified direction; it is calculated by comparing the measured power transmitted or received by the antenna in a specific direction to the power transmitted or received by a hypothetical ideal antenna in the same situation, usually a half wave dipole. There are a variety of antennas that offer a gain over the half wave dipole.