DA-1502 is a 2-dipole element array wide band VHF antenna for professional and amateur radio systems. Dipole incorporates 1/4 wave coax line matching circuit optimized for wide bandwidth and accurate matching. Maximum gain is achieved by coupling single dipoles into array. Dipoles in array are coupled by precision phasing cable harness keeping low SWR and minimum insertion losses. All connections made by soldering and are the one-piece. The vertical distance between centers of dipoles is 0.8 wave length. All antenna parts are made of aluminum . All components of dipole elements are DC grounded for better lighting and anti-static protection.
Frequency range, MHz : 136 – 174
After placing order, usually we
need about 10 days to make an order.
The shipping time to US by
regular (UPS) shipping service is usually about 15 days.
Note: because of local customs, we not are sending any paper instructions by parcel !
Short manual for installation:
Install the supplied hardware
exactly as shown in the photo. Colored markers on each dipole indicate upward
direction. Accordingly, the drainage holes at the end of the antennas should
point downward.
To calculate the vertical distance in meters, between the centers of the dipoles, it is necessary to multiply the wavelength of the transmission frequency by 0.8
The mast on which the antenna
is installed must be no lower than the upper edge of the upper dipole.
The antenna mast must be
grounded.
If you have any questions
about the assembly and installation of the antenna, please contact to me.