Garmin BKM-A User Manual

BKM4

Wireless Bike

Speed+Cadence

Monitor

M

OUNTING THE

S

PEED+CADENCE MONITOR ON

TO A BICYCLE FRAME

The BKM4 Bike Speed+Cadence Monitor mounts easily onto a bike frame. The speed monitoring unit is
positioned on the back of the rear triangle; the cadence monitoring unit is positioned on the bottom of the
rear triangle. One bike magnet pickup is attached to a spoke for use with the speed monitoring unit; the
other is attached to the inside of the crank arm for use with the cadence monitoring unit.

• Attach all pieces securely. Any sliding motion will affect accuracy.

• The bike magnet pickups must pass across the monitoring units. Misalignment will affect accuracy.

BKM4 B

IKE

P

AIRING THE

WITH A SPORTS MONITORING WATCH

The BKM4 Bike Speed+Cadence Monitor must “pair” with an ANT-enabled sports monitoring watch in
order to display performance data to the user. To pair your monitor:

• Bring the BKM4 Bike Speed+Cadence Monitor within 10-30 inches (25-75 cm) of the sports

monitoring watch.

• Ensure that you are standing at least 72 inches (183 cm) away from any other ANT-enabled bike

speed or cadence monitor. You can be in proximity to other ANT-enabled devices.

• After the BKM4 Bike Speed+Cadence Monitor pairs with the sports monitoring watch, the bike icon

appears on the watch’s LCD display.

Preliminary document not for redistribution. Product features and specifications may vary. Copyright ©2005 Dynastream Innovations Inc. 6/6/2006

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BKM4 B

IKE SPEED+CADENCE MONITOR

S

NOTE:

This device complies with Part 15 of the FCC Rules. Operation is subject to the following

pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection

PECIFICATIONS

Size (max dimensions): 31 x 29 x 14 mm
Weight: 14 g
Power: Single user-replaceable CR-2032 battery
Battery life: 5 years assuming use of 1 hr/day at 20°C
Storage temp: -20°C to +70°C
Operating temp: -10°C to +50°C
User-interface: Auto on/off
RF frequency/protocol: 2.4 GHz / Dynastream ANT transmit protocol
Communication range: > 3 m (receiver dependent)
Regulatory compliance: FCC, IC, and CE ready

FCC Compliance

two conditions: (1) this device may not cause harmful interference, and (2) this device must
accept any interference received, including interference that may cause undesired operation.

This equipment has been tested and found to comply with the limits for a Class B digital device,

against harmful interference in a residential installation. This equipment generates, uses and can
radiate radio frequency energy and, if not installed and used in accordance with the instructions,
may cause harmful interference to radio communications. However, there is no guarantee that
interference will not occur in a particular installation. If this equipment does cause harmful
interference to radio or television reception, which can be determined by turning the equipment
off and on, the user is encouraged to try to correct the interference by one or more of the
following measures:

- Reorient or relocate the receiving antenna.

- Increase the separation between the equipment and receiver.

- Connect the equipment into an outlet on a circuit different from that to which the receiver is
connected.

- Consult the dealer or an experienced radio/TV technician for help.

Changes or modifications not expressly approved by the party responsible for compliance could
void the product warranty and the user’s authority to operate this equipment under Part 15
regulations.

Preliminary document not for redistribution. Product features and specifications may vary. Copyright ©2005 Dynastream Innovations Inc. 6/6/2006

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