The 1U661-001 Radio Control Panel is designed to provide remote tuning of two VHF COMM transceivers, two VHF NAV / DME receivers and one ADF receiver.
The Control Panel is capable of tuning within a VHF COMM frequency range of 118.00(0) to 136.990 MHz in 25 KHz or 8.33 KHz increments (switch selectable). An optional extended tuning range from 137.00(0) to 151.97(5) MHz in 25 KHz increments is available. The VHF NAV frequency range is 108.00 to 117.95 MHz in 50 KHz increments. The ADF frequency range is 190.0 KHz to 1799.5 KHz in 0.5 KHz increments.
Pre-selecting frequencies for the NAV, COMM and ADF provide a single level of memory. Up to ten (10) additional memory channels can be stored and retrieved with the "MEM" buttons. Audio volume controls with an integrated power Off switch are available for both COMM and NAV radios. Other ancillary functions incorporated on the Control Panel are; Squelch On/Off, COMM Test, Marker Sensitivity Hi/Lo, NAV Test, Antenna/ADF mode and BFO On/Off.
A more detailed description of the 1U661-001 Control Panel can be found in the Operator's Manual.
- All electronic replacement for Cessna Citation 1U434-001 five-in-one mechanical controllers.
- Improves pre-selection of VHF COMM frequencies.
- Ten memories (VHF COMM and NAV / DME modules) store additional frequencies and waypoints.
- Controls Rockwell Collins VHF 21 C/D, and VHF 22 C/D VHF communications transceivers with a commercial serial data bus (CSDB).
- Optical frequency selector provides long term reliability and excellent tactile feel.
- Continuous, linear display and indicator dimming replaces old, two-step dimming scheme.
- Fully TSO'd for installations in Cessna Citation aircraft.
- Built-in self-testing.
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| Dimensions: |
7.65” W x 6.90” H x 6.00” D |
| Weight: |
8.0 pounds maximum |
| Displays: |
5½ digit dual line LCD; White digits on black background |
| Panel Color: |
Gray, FED-STD-595 color # 36118 |
| Knob Color: |
Black |
| Nomenclature: |
White, backlighted |
| Lighting: |
Panel & Display - Blue/White
COMM Transmit (XMT) - Green |
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| J1 (COMM 1) |
MS 3122A20-41P |
| J2 (COMM 2) |
MS 3122A20-41PW |
| J3 (NAV 1) |
MS 3122A22-55P |
| J4 (ADF) |
MS 3122A22-41P |
| J5 (NAV 2) |
MS 3122A22-55PW |
| J6 |
MS3122A18-32P |
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| Primary Power: |
28 volts DC, @ 100 mA nominal per Module (500 mA total) |
| Lighting: |
5 volts DC, @ 3.0 A maximum |
VHF COMM (1 & 2) |
Frequency Range
(switch selectable) |
118.00(0) to 136.97(5) MHz, 25 KHz spacing |
| 118.0000 to 136.9916 MHz, 8.33 KHz spacing |
| Extended Range |
137.00(0) to 151.97(5) MHz, 25 KHz spacing |
| Interface |
Commercial Standard Digital Bus (CSDB) |
| Compatible Equip. |
Collins VHF-21C, VHF-21D, VHF-22C and VHF-22D |
VHF NAV / DME (1 & 2) |
Frequency Range |
108.00(0) to 117.95(0) MHz, 50 KHz spacing |
| Interface |
ARINC 410, 2 of 5 |
| Compatible Equip. |
Collins VIR-30, VIR-32, VIR-42, DME-40 |
ADF |
Frequency Range |
190.0 KHz to 1799.5 KHz |
| Interface |
ARINC 410, BCD |
| Compatible Equip. |
Collins ADF-60, ARINC 570 ADF receivers |
The following conditions have been established as minimum design requirements in accordance with
RTCA/DO-160D except as noted. The 1U661-001 Radio Control Panel will meet or exceed each of the
following environmental specifications, verified by direct testing of test article. Some categories are not
applicable and are marked Category X.
Test Description Category:
- Temperature and Altitude: A2/C1
- In-Flight Loss of Cooling: X
- Temperature Variation: B
- Humidity: A
- Operational Shocks and Crash Safety: Per DO-160D Section 7.0
- Vibration: SB
- Explosion Proofness: X
- Waterproofness: X
- Fluids Susceptibility: X
- Sand and Dust: X
- Fungus Resistance: X
- Salt Spray: X
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- Magnetic Effect: A
- Power Input: Z
- Voltage Spike: A
- Audio Frequency Conducted Susceptibility: Z
- Induced Signal Susceptibility: Z
- Radio Frequency Susceptibility: R
(Radiated and Conducted)
- Emission of Radio Frequency Energy: M
- Lightning Induced Transient Susceptibility: A3XX
- Lightning Direct Effect: X
- Icing: X
- Electro Static Discharge: X
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The following TSO’s (ETSO's) apply:
- TSO C34e (2C34f) ILS Glide Slope
- TSO C36e (2C36f) ILS Localizer
- TSO C37d (2C37e) VHF COMM Transmitter
- TSO C38d (2C38e) VHF COMM Receiver
- TSO C40c (2C40c) VOR Receiver
- TSO C66c (2C66b) DME Receiver
- TSO C41d (2C41d) ADF Receiver
