XM Delphi SkyFi users
There is a secret menu, which contains advanced data fields such as signal strength for SAT1, SAT2 and Terr. One screen will give you percentages and another will give you actual readings. There are also menus that give you the firmware information for your unit.
To get to this menu:
1) Turn your unit off.
2) Press <2> <0> <7> <XM Button> ---- This should turn your unit on.
3) Your unit should operate normally.
4) Press the <Display> button to cycle thru the menus. You will see all of the normal menus and the advanced menus also.
5) Once you turn off the unit and turn it back on the unit will reset to normal menu operation.
Much better than the "Antenna Amining" screen.
Screen 1:
SAT1: East Satellite (Roll) at 85 degrees west longitude.
SAT2: West Satellite (Rock)at 115 degrees west longitude.
TERR: Terrestrial Repeater signal
DEMOD: A check mark means you have demodulator lock. This means the receiver is locked on the signal from that source.
TDM: A check mark means you are synchronized with the Time Division Multiplexed signal from that source.
BER %: Percentage Bit Error Rate. This is the percentage of received data bits in error. For satellite this value should be less than 3% for error free audio. For terrestrial, it should be below 6%.
AGC: Automatic Gain Control Level. This is an indication of the amount of internal gain needed to recover the signal. The more negative, the higher the signal being received.
Screen 2:
BER: Raw Bit Error Rate. This is the number of received data bits in error. This value divided by the maximum number of errors in a measurement interval is the BER % on Screen 1. Max number for SAT1 and SAT2 is 5440. Max for TERR is 6800.
AGC: Same as on Screen 1.
C/N: Signal to Noise Ratio measured as Carrier Power divided by Noise Power. For SATs, this value needs to be greater than 7. It does not apply for TERR. This is a good satellite antenna pointing indicator.
RSBK and RSBY: Reed Solomon Block and Byte Errors. They should be 0.
Screen 3: Who knows.
Rock On
To get to this menu:
1) Turn your unit off.
2) Press <2> <0> <7> <XM Button> ---- This should turn your unit on.
3) Your unit should operate normally.
4) Press the <Display> button to cycle thru the menus. You will see all of the normal menus and the advanced menus also.
5) Once you turn off the unit and turn it back on the unit will reset to normal menu operation.
Much better than the "Antenna Amining" screen.
Screen 1:
SAT1: East Satellite (Roll) at 85 degrees west longitude.
SAT2: West Satellite (Rock)at 115 degrees west longitude.
TERR: Terrestrial Repeater signal
DEMOD: A check mark means you have demodulator lock. This means the receiver is locked on the signal from that source.
TDM: A check mark means you are synchronized with the Time Division Multiplexed signal from that source.
BER %: Percentage Bit Error Rate. This is the percentage of received data bits in error. For satellite this value should be less than 3% for error free audio. For terrestrial, it should be below 6%.
AGC: Automatic Gain Control Level. This is an indication of the amount of internal gain needed to recover the signal. The more negative, the higher the signal being received.
Screen 2:
BER: Raw Bit Error Rate. This is the number of received data bits in error. This value divided by the maximum number of errors in a measurement interval is the BER % on Screen 1. Max number for SAT1 and SAT2 is 5440. Max for TERR is 6800.
AGC: Same as on Screen 1.
C/N: Signal to Noise Ratio measured as Carrier Power divided by Noise Power. For SATs, this value needs to be greater than 7. It does not apply for TERR. This is a good satellite antenna pointing indicator.
RSBK and RSBY: Reed Solomon Block and Byte Errors. They should be 0.
Screen 3: Who knows.
Rock On


