Haicom HI-303S

Haicom HI-303S ... unit incorporates the SiRF XTrac chipset which provides high sensitivity to satellite signals in more challenging signal strength environments, such as under heavy leaf cover, between tall buildings in 'urban canyons' or even indoors. However, while the GPS status screen of your navigation software will rarely show less than a full compliment of satellite locks your real time position may update slightly slower than with an alternative `traditional' chipset. The lag is barely noticeable at low speeds so for walkers and cyclists under heavy foliage, where the ability to receive a GPS location fix is vital, this GPS is the product of choice. The unique hinge design allows the MMF to fold from 180 to 0 degrees to accommodate the best satellite receiving angle so that you're unlikely to require the optional external antenna. Furthermore, the un