Midland 91-1060-91-1110, Service Manual Addendum, Page: 5 / 62

General Information
Low Current Base Tech 3.5
SPECIFICATIONS -VHF
General
Frequency Range:
A Band: 136-156 MHz, B Band: 146-174 MHz
Number of Channels:
500 channels with name, 10 groups of 50 channels
Channel Spacing:
FM 12.5 / 20 / 25 / 30 kHz
Digital C4FM
Operation Mode:
Simplex / Duplex / Full Duplex/ Repeat
Antenna Impedance:
50 ohm unbalanced
Power Supply:
DC 13.6 V, negative ground only
Consumption:
<120mA Standby
@RX
~1 A
@TX
≤ 12 A (60W), ≤ 20 A (110W)
Environmental Conditions:
-30 to +60 degrees C, 95% humidity @ 35C
Dimensions:
18.2” (w) x 3.4” (h) x 14.2” (d), (462 mm x 88 mm x 360 mm)
Weight:
24 lbs (11 kgs)
Transmitter
Output Power:
(91-1060) 25-60 W, continuous
(91-1110) 5-110 W, continuous
Switchable Bandwidth:
Full Sub Band
Maximum Deviation:
±
5kHz (wide band),
±
2.5 kHz (narrow band)
Frequency Stability:
≤ 1.5 ppm std, 10 MHz external optional
Frequency Response:
+1 dB / -3 dB, 300-3000 Hz, 1 kHz reference
FM Hum and Noise:
≤ 50 dB @1kHz 70% mod., ≤ 50 dB Digital mode
Modulation Distortion:
≤ 3%
Spurious & Harmonics:
≤ 0.25µW ( ≥ 80 dBc)
Receiver
Switchable Bandwidth:
Full Sub Band
IF Frequencies:
1
st
IF: 48.4 MHz, 2
nd
IF: 455 kHz
Frequency Stability:
≤ 1.5 ppm
Sensitivity:
≤ 0.40 µV @ 20 dB N.Q., ≤ 0.30 µV @ 12 dB SINAD
≤ 0.30µV, Digital 5% BER
Squelch Sensitivity
: ≤ 0.25 µV
Selectivity:
≥ 85 dB @ 25 kHz, ≥ 80 dB @ 12.5 kHz (TIA-603)
≥ 80 dB Digital
Intermodulation:
≥ 85 dB
Spurious Response:
≥ 100 dB
AF Response:
+1 / -3 dB, 300-3000 Hz, 1 kHz reference
AF Distortion:
≤ 3% @ 1 kHz 60% mod.
Audio Output Power:
7.5 Watts @ 8 Ώ / 10 Watts @ 4 Ώ
Signal to Noise Ratio:
≥ 50 dB @ 1 kHz 70% mod. (wideband), ≥ 45 dB (narrowband)
1 © 2012 Midland Radio Corporation