Equipment Interference

Equipment Interference

Wearing your device in the presence of everyday equipment may require that you make adjustments to prevent interference.

Devices and Equipment That May Cause Interference

This chart provides some simple guidelines for use of your devices and other supplies in the presence of certain equipment.

equipment interference

Legend

x = Remove item when in the presence of this equipment.

checkmark = Continue to use normally.

Site Only = Customer able to keep site on their body.

1 = Common consumer electronic devices that transmit in the same frequency band used by the MMT-7703 MiniLink® transmitter may prevent your CGM monitor or insulin pump from receiving the glucose information sent by the transmitter. Most cellular (mobile) phones and 900 MHz cordless phones, when transmitting or receiving, may cause significant interruption of transmitter-receiver communication. It is likely that other devices operating in similar frequency ranges will have a similar effect. This interference, however, will not cause any incorrect data to be sent and will not cause any harm to your transmitter.

2 = Common consumer wireless devices that transmit in the same 916.5MHz/868.35MHz frequency band used by the MMT-7709 CGMS iPro Digital Recorder (DR) transmitter may prevent the DR transmitter from downloading appropriately to Solutions CGMS iPro through the MMT-7304NPRO/MMT-7304WPRO COMLINK iPro receiver. Most cellular (mobile) phones and 900 MHz cordless phones, when transmitting or receiving, may cause significant disruption to communication between the DR transmitter and the COMLINK iPro receiver. It is likely that other wireless devices co-existing in similar frequency ranges will have a similar effect. This interference, however, will not cause any incorrect data to be sent and will not cause any harm to your digital recorder.

! = Your continuous glucose monitor (CGM) system is safe for use on commercial airlines. If questioned by airline personnel about use of your Medical Portable Electric Device (M-PED), please show them your airport emergency card. If the airline flight crew still request that you turn off your personal CGM system, you must comply. The CGM transmitter is an M-PED with emission levels that meet RTCA/DO160D Section 21, Category M. Per FAA Advisory Circular #91-21.1B, dated 8/25/2006, any medical portable electronic device (M-PED) that meets RTCA/DO160D Section 21, Category M in any mode "may be used onboard the aircraft without any further testing by the operator."

Recommended Separation Distances Between the mySentry System and Common Household Items

This chart provides some guidelines for keeping the mySentry monitor and outpost a short distance from household devices that generate a radio frequency (RF) because they may cause interference.

Household RF Transmitter Frequency Recommended Separation Distance (meter) Recommended Separation Distance (inch)
Telephones
Cordless Household 2.4 GHz 0.254 meter 10"
Cordless Household 5.8 GHz 0.254 meter 10"
TDMA-50 Hz (cell phone) 1.9 GHz 0.3 meter 12"
TDMA-50 Hz (cell phone) 800 MHz 0.3 meter 12"
PCS (cell phone) 1.9 MHz 0.3 meter 12"
DCS (cell phone) 1.8 MHz 0.3 meter 12"
GSM (cell phone) 900 MHz 0.3 meter 12"
GSM (cell phone) 850 MHz 0.3 meter 12"
CDMA (cell phone) 800 MHz 0.3 meter 12"
Analog (cell phone) 824 MHz 0.3 meter 12"
CDMA (cell phone) 1.9 MHz 0.3 meter 12"
WiFi Networks
802.11b; 11 Mbps maximum 2.4 GHz 2 meters 79"
802.11g; 54 Mbps maximum 2.4 GHz 2 meters 79"
802.11n; 11 Mbps maximum 2.4 GHz 2 meters 79"
Bluetooth 500 kb/s 2.4 GHz 0.1 meter 3.93"
ZigBee 250 kb/s 2.4 GHz 0.1 meter 3.93"

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