With such a lot of information on the net about push to talk communication's it's hard to find the best and most honest articles. here is a piece from a reputable website that i believe to be accurate, don't quote me on it but please read and enjoy
The IC-A15 from Icom, is a new air band transceiver designed to be used by ground crew working in airports and airfields. The IC-A15 is compact, lightweight and has a high capacity Lithium-Ion battery pack (2000mAh) so it can be used all day. It has great audio output to cut through environmental noise. And it’s built really, really rugged...and rain-resistant too...enough for the rigours of the aviation market. Just check out some of the interesting features of this new radio: Get your Communications heard.
5 watts of transmit power are built-in, enough to cover the largest of airports and get signals through and around thick walls and metal hangars. In addition 700mW of crisp, clear audio is provided by the built-in BTL amplifier which should make sure communications get heard. Easy to use, even for high turnover environments.
The IC-A15 Ground to Air Two Way Handheld Radio is really easy to operate and ideal for large companies where the cp040 walkie talkie
may be used by shift workers. The full-featured keypad allows direct input of channels and frequencies. 200 Memory channels and 8 alphanumeric LCD characters per channel allow you to allocate specific users a channel on the radio. A low battery indication and beep alert are also standard features. Long lasting
battery life, more than enough for shift work
The IC-A15 comes with a large Lithium-Ion battery pack (2000mAh) that can provide up to 18 hours of operation. Being Li-ion, it has superior weight-performance ratio. Compact, Rugged, lightweight
More power is housed in a smaller, lighter package. Carrying the lightweight IC-A15 on the belt will be less of a hassle for ground workers. The IC-A15 also meets strict military specifications (MIL STD MIL-810C/D/E/F) for ruggedness. The water resistant construction, equivalent to IPX4, provides reliable operation in wet conditions. Various charging options
The BC-179 desktop charger securely holds and charges the battery, even in bumpy conditions. The charger may be powered by an optional cigarette lighter cable, CP-22. An “AA” backup battery case, BP-261, is also available. The list price of the IC-A15 is £200.00 ex.VAT and is available from authorised Icom dealers. Ian Lockyer, Marketing Manager of Icom UK Ltd said, ‘The simple to use IC-A15 is an ideal ‘work horse’ ground to air radio for airports and airfields. The no-nonsense design will make it an important communication choice for airport operators.’ A high resolution picture of this product can be downloaded from our image bank