ET-495 Deluxe Cordless Telephone
(430-0567) Specifications Faxback Doc. # 8030
MEASUREMENT CONDITION
Supply Voltage
Base:.................................................AC 120V +/-2V 60Hz
Handset:.................................................DC 3.7V +/-0.1V
Temperature:.............................................25 +/- 5 degrees C
CHANNEL FREQUENCY
Channel Base Unit Handset
TX RX TX RX
1 46.610MHz 49.670MHz 49.670MHz 46.610MHz
2 46.630MHz 49.845MHz 49.845MHz 46.630MHz
3 46.670MHz 49.860MHz 49.860MHz 46.670MHz
4 46.710MHz 49.770MHz 49.770MHz 46.710MHz
5 46.730MHz 49.875MHz 49.875MHz 46.730MHz
6 46.770MHz 49.830MHz 49.830MHz 46.770MHz
7 46.830MHz 49.890MHz 49.890MHz 46.830MHZ
8 46.870MHz 49.930MHz 49.930MHz 46.870MHz
9 46.930MHz 49.990MHz 49.990MHz 46.930MHz
10 46.970MHz 49.970MHz 49.970MHz 46.970MHz
Standard Modulation:...........................1 kHz Tone, +/- 2.5 kHz Dev.
Telephone Line:................................................48 +/- 1V DC
RF SECTION
Handset Receiver Unit Nominal Limit
Sensitivity @ 12 dB SINAD µ 0.5 1.0 Max
Image Rejection dB 70 50 Min
Bandwidth @ -6 dB kHz +/- 9.0 +/- 7.0
Adjacent Channel
@ 20 kHz dB 50 35 Min
Spurious Rejection dB 50 35 Min
Battery Low Indication V 3 3.3 + 0.15
S/N (1 mV RF Input) dB 75 65 Min
THD (1 mV RF Input) % 5 10
Audio Output
@ Maximum Volume mV 300 200 Min
@ Minimum Volume mV 120 70 Min
Frequency Response (Ref. 1 kHz)
@ 500 Hz dB 0 0 +/- 5
@ 3 kHz dB -14 -14 +/- 5
Transmitter Unit Nominal Limit
Transmit Power @ 3 Meter mV/M 0.7 0.7 +/- 0.3
Frequency Tolerance Hz +/- 500 +/-800
Modulation Sensitivity
@ 92 dB SPL kHz 3.5 3.5 +/- 0.5
Audio Frequency Response (ref. 1 kHz 92dB spl)
@ 500 Hz dB 0 0 +/- 5
@ 3 kHz dB 0 0 +/- 5
Current Drain Unit Nominal Limit
Standby (Average) mA 6 10
Talk mA 30 60
Battery Charge Current mA 27 40
Minimum Operating Voltage V 3.0 3.2
BASE
Receiver Unit Nominal Limit
Sensitivity @ 12 dB SINAD µ 1 2 Max
Squelch Sens. (SINAD) nV 0.5 1.0 Max
Image Rejection dB 70 60 Min
Adjacent Channel Selectivity
@ +/- 20 kHz dB 50 35 Min
Spurious Rejection dB 50 35 Min
S/N (1mV RF Input) dB 70 60 Min
THD (1mV RF Input) % 5 10 Max
Frequency Response (Ref. 1 kHz)
@ 300 Hz dB -3 -3 +/- 5
@ 3 kHz dB -7.0 -7.0 +/- 5
Line Output Level
@ 1mV RF Input dBm -13 -13 +/- 3
Speaker Output Level
@ 1mV RF Input dB SPL 88 83 Min
Volume @ Max @ 1 ft.
Transmitter Unit Nominal Limit
Transmit Power @ 3 Meter VP-P 0.2 0.2 +/- 0.05
Frequency Tolerance Hz +/- 500 +/- 800
Modulation Sensitivity
Telephone Line
1 kHz @ -15 dBm kHz 2.5 2.5 +/- 1.0
Speaker Phone
82 dB SPL 1 kHz kHz 2.5 2.5 +/- .5
Audio Frequency Response (Ref. 1 kHz)
@ 500 Hz dB 1.0 - 1.0 +/- 3
@ 3 kHz dB 0 0 +/- 3
TELEPHONE Unit Nominal Limit
Pulse Dialing
Dialing Rate PPS 10 8-11
Break Ratio % 60 58-64
Interdigital Interval mS 850 800-2000
Access Pause sec 2.0 1.7-2.3
Flash mS 700 500-900
Interdigital Interval
Between Pulse/Tone mS 800 700-900
Tone (DTMF) Dialing
Duration of Signals mS 100 50 Min
Interdigital Time mS 80 50 Min
Frequency
Row 1 Hz 697 687-707
Row 2 Hz 770 759-781
Row 3 Hz 852 840-864
Row 4 Hz 941 927-955
Column 1 Hz 1209 1191-1227
Column 2 Hz 1336 1316-1356
Column 3 Hz 1477 1455-1499
DTMF Output Level @ 20 mA Loop Current
Frequency
697 dBm -5.0 -7.5 Min
770 dBm -5.0 -7.5 Min
852 dBm -5.0 -7.5 Min
941 dBm -5.0 -7.5 Min
1209 dBm -3.0 -5.5 Min
1336 dBm -3.0 -5.5 Min
1447 dBm -3.0 -5.5 Min
TWIST dB 2.0 0.0 Min
DTMF Output Level @ 80 mA Loop Current
Frequency
697 dBm -5.0 -12.0 Min
770 dBm -5.0 -12.0 Min
852 dBm -5.0 -12.0 Min
941 dBm -5.0 -12.0 Min
1209 dBm -3.0 -10.0 Min
1336 dBm -3.0 -10.0 Min
1447 dBm -3.0 -10.0 Min
TWIST dB 2.0 0.0 Min
RINGER Unit Nominal Limit
Ringer Volume
A-Weighted @ 1 Foot
Speaker Phone
High Volume dB SPL 90 85-95
Low Volume dB SPL 80 75-85
Handset
High Volume dB SPL 90 85-95
Low Volume dB SPL 80 75-85
Minimum Ringer Start
Voltage @ 20 Hz Vrms 35 40 Max
Ringer Tap Voltage
@ Long Loop VDC 150 105 Min
Ringer Tap Voltage
@ Short Loop
S-1 Pass
S-2 Pass
S-3 300 Ohm Pass
S-4 1.2K Ohm Pass
SPEAKER PHONE Unit Nominal Limit
Speaker Volume Line Input
1 kHz @ -15 dBm Volume @ Max
A-Weighted @ 1 ft. dB SPL 88 83 Min
Volume Control Range dB 25 20 Min
Stability Line Input
1 kHz@ -35 dBm Consistent No Fading
Tone or cutting
Line Output
1 kHz @ 82 dB SPL
Loop Current 20 mA dBm -6 Max -6 +/- 3dBm
POWER SUPPLY Unit Nominal Limit
AC Power Consumption W 3.5 6.0 Max
Charge Output with 120 Ohm Load V 4 4 +/- 1
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