Are replacement WA380 antennas still available?
The WA380 series of VHF half-wave antennas are no longer available.
Here are some suggested alternatives:
Use quarter-wave antennas instead. The quarter wave antennas, when properly installed are quite efficient. The quarter-wave antenna element should have a length as follows:
169 - 185 MHz, range A - center frequency 177 MHz - 15-7/8"
185 - 200 MHz, range B - center frequency 192.5 MHz - 14-1/2"
200 - 216 MHz, range C - center frequency 208 MHz - 13-1/2"
The quarter wave antenna requires a ground plane for proper operation. The ground plane provides an electrical mirror image of the antenna element so that it appears to be equivalent to a dipole. When directly attached to the receiver antenna terminals, the receiver chassis acts as the ground plane. Quarter wave whip antennas are not recommended for remote installation with coaxial cable, unless a ground plane is included in the installation.
Install a half-wave or equivalent antenna that is capable of tuning the VHF-High Band frequencies of 169.0 to 216.0 MHz.
There are two antennas that will work for the "Travel" and "A" frequency ranges, 169 - 171 MHz and 174 - 185 MHz respectively:
Diamond Antenna RH205
Both antennas listed are intended for use in the 144 - 148 MHz Amateur Radio band. But both can be adjusted to work well in the 169 - 185 MHz frequency range. They can be ordered from most local Amateur Radio supply stores as well as the following multi-location suppliers:
Amateur Electronic Supply - www.aesham.com
Ham Radio Outlet - www.hamradio.com
Check the store websites for locations, hours, and phone numbers.
At this time, there are no known suitable commercial half-wave replacement antennas for the B and C frequencies ranges.
Both the Pulse-Larsen and Diamond antennas are straight and terminated with a BNC connector. To mount on the back of a receiver with UHF type connectors, a 90 degree UHF adapter and UHF to BNC adapter will be required. Other arrangements may require different adapters.
Adjust the lengths of the Pulse-Larsen and Diamond Antennas as follows:
|Antenna||169-172 MHz "Travel Band" Range||174 - 185 MHz "A" Range|
|Diamond Antenna RH205||44.5"||41.5"|