Holux gpslim 240 bluetooth gps receiver review

Looking at the holux gpslim 240 bluetooth gps receiver, you won’t believe the size, like a small candy bar.  The dimensions are 64 by 22 by 15 mm, extremely compact you can hang it round your neck and still look fashionable.

it comes with a sirf 3 chipset hence it is so sensitive, with the sirf III chipset gps receivers, you should expect a high degree of sensitivity as standard.  The chipset it uses is of a low power hence the battery is very small to accomodate the size.  Unfortunately the gpslim240 bluetooth gps receiver is not user replaceable as this is of a unique kind.  The run time is about 8 hours.

it has an on-off switch .  It also has three leds,an orange one that blinks when it has a fix, the blue one for bluetooth and red one that comes on when the battery power is slow.  It is chjarged by a standard mini usb connector. There is a tendency for the device to get dirty easily because of the shiny surface.
Note this has no socket for an external gps antennae but you wouldn’t miss it because of the sensitivity of the unit. Read more

Holux gpslim 236 bluetooth gps receiver review

The Holux gpslim 236 is a pretty compact bluetooth gps receiver, It measures 46.3 by 67 by 19 mm, isn’t that small?  It is also very light that you can put in your pocket and forget it. It uses a sirf star III chipset hence you can be guaranteed of it’s extreme sensitivity.  It picks up signals right from the middle of my living room, an attribute of the sirf 3 gps chipset.

Looking at the holux gpslim236, It has three lights on the top, a red one that flashes to indicate a gps fix, a blue one for bluetooth and the third yellowish light that signals low battery warning.  it has an on-off switch on the side as well as a socket for an external antennae , something I doubt you will ever need due to the sensitivity of the gps receiver. It also comes with a removeable 850mAh rechargeable lithium-ion battery that provides up to 10 hours working operation. Read more

Bt-77 bluetooth gps review

The BT-77 bluetooth gps receiver is very popular, I would consider it one of the most popular gps receivers. This is because it has been sold under different names including itrex, avl and other names

The bt77 uses a nemerix chipset, it is a 16 channel GPS tracking up to 16 satellites. Once fully charged it can last up to 30 hours. The box contents include the gps receiver and battery, an ac charger , usb car charger , a usb cable  and a cd. It may also come with a dashboard mat to place the receiver on so t doesn’t slide around. Because it comes with a usb cable , it can also be charged from a pc.

The device itself measures 81mm by 44mm by 20 mm. It has 2 flashing lights, a blue and red one,  the red light flashes when it has locked on to enough satellites otherwise it is steady. The blue one has to do with Bluetooth functionality. Read more