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10 Watt
6 Watt – 10 Watt Dual Mode
VHF/AM AIRBAND TRANSCEIVERS
8.33 kHz/25 kHz or '25 kHz only' channel spacing
6 Watt
FSG 90F-H1
Installation & Operation
applies for FSG 90F
applies for FSG 90F-H1 article no. F10306
Before installing and operating the transceiver,
read this manual thoroughly, please!
Please observe the Safety Information!
Document No.:
Article-No.:
Date of Issue
Avionics Division
Erpftinger Strasse 36 « D-86899 Landsberg « GERMANY
Telephone +49 8191/ 3351-0 « Fax +49 8191/ 3351-49
e-mail: firma@dittel.com « Internet: http://www.dittel.com
FSG 90F
No. LBA.O.10.911/98 JTSO
118.000 ... 136.975 MHz
article no.
Keep for further use!
DFS-No.: B-7850/97
F10194
IM 034.00
D10033
November 2000
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Related Manuals for Walter Dittel FSG 90F
Summary of Contents for Walter Dittel FSG 90F
- Page 1 8.33 kHz/25 kHz or ‘25 kHz only’ channel spacing Installation & Operation applies for FSG 90F article no. F10194 applies for FSG 90F-H1 article no. F10306 Before installing and operating the transceiver, read this manual thoroughly, please! Please observe the Safety Information! Keep for further use! Document No.:...
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Page 2: Warranty - Copyright - Service
We reserve our right to change without prior notice due to new technological design or corresponding new production technology. Walter Dittel GmbH takes no guarantee for these documents with respect to application and interpretation. Walter Dittel GmbH ("Warrantor") warrants to the purchaser of new radio... -
Page 3: Table Of Contents
Section 3, Installation ....................17 General ......................17 Unpacking and Inspecting Equipment.............. 17 Pre-installation Test ..................17 3.3.1 Particular Remarks to FSG 90F(X) transmitter modulation ........18 Mechanical Installation..................20 3.4.1 Transceiver installation ..................20 3.4.2 Compass deviation ....................20 3.4.3 Antenna installation.................... - Page 4 FSG 90F System Table of Content W. Dittel GmbH Table of Content Page Section 4, Functional Description ................33 Introduction....................... 33 Operator's Controls ..................33 Frequency Display, 5-digit or 6-digit Liquid Crystal Display (LCD)....36 Connectors at rear side ..................37 Section 5, Set-up Procedure ..................
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Page 5: List Of Illustrations
Fig. Page Test Setup, Envelope Detector................... 19 Deviation of a compass by an operating FSG 90F(X), dependent on the distance between compass center and contour of transceiver......20 FSG 90F(X), Dimensions, Installation Drawing ............21 FSG 90F(X), Installation of the Fastener Strips ............22 Hook-up Diagram using wire harness F10189, 1-2 dynamic microphone(s).... -
Page 6: Abbreviations
FSG 90F System Abbreviations W. Dittel GmbH Abbreviations Aircraft Nautical miles Article Number (DITTEL) Nanowatt (10 Automatic Gain Control Peak Envelope Power Ampere hour Phase-Locked Loop Amplitude Modulation parts per million Antenna Push-To-Talk Ass'y Assembly Picowatt (10 American Wire Gauge... -
Page 7: Section 1, Safety Information
• Always switch OFF the radio first when starting an engine or vehicle! • When operating the FSG 90F(X) on a 24 Vdc source a suitable Voltage Converter 24 Vdc/12 Vdc of at least 4 Amps must be used! •... -
Page 8: Used Symbols
1. Safety Information W. Dittel GmbH • Prior to any flight verify proper FSG 90F(X) functions by means of a short communications test. It has to be taken into account that with a faulty antenna or cable this COM test may absolutely turn out positive at the airfield or in short distance to the ground station. -
Page 9: Section 2, General Description
This installation and operating manual IM 034.00 contains instructions and descriptions for application, installation, presetting operation and testing, as well as interconnecting diagrams of the multi-use FSG 90F / FSG 90F-H1 VHF/AM Transceiver System of Walter Dittel GmbH, Luftfahrtgeraetebau, D-86899 Landsberg, Germany. -
Page 10: Brief Description
• Direct Tune Mode: Active channel name or frequency only. With the Dual Mode models FSG 90F and FSG 90F-H1, up to 99 channel memories in 8.33 kHz / 25 kHz CH spacing (6-digit display), and another set of up to 99 channels in the '25 kHz only' CH spacing (5-digit display) can be preset. - Page 11 Receive by speaker and / or headphone. 30 mA current consumption saving can be achieved in standby mode (Squelch ON), when the FSG 90F(X) is used in installations, where no external audio is required for speaker output. Listening through headphone remains however possible. This external AF OFF function may be selected in SET-UP.
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Page 12: System And Type Approval Information
W. Dittel GmbH System and Type Approval Information The Dual VHF/AM Airband Transceivers FSG 90F(X) comply for both, the combined 8.33 kHz/25 kHz as well as "25 kHz only" channel spacing with all applicable National and International Type Approval requirements, for any airborne and ground operations. -
Page 13: Operating License
A132937J. Equipment supplied Walter Dittel Description Article number Dual Mode 6 Watt VHF/AM Transceiver FSG 90F, Installation and F10194 Operation manual, Operating instructions, Warranty card to cover 24 months Dual Mode 10 Watt VHF/AM Transceiver FSG 90F-H1, Installation and F10306... -
Page 14: Optional Accessories
FSG 90F System 2. General Description W. Dittel GmbH Optional Accessories Description Article no Connector kit, SUB-D 25-pin, incl. mounting hardware F10212 Folded-top antenna, for gliders, antistatic, 118-137 MHz, 9 m/29.5 ft cable RG-58C/U, BNC connector. Applies for wood or GRP tail-fin,... -
Page 15: Accessories Required, But Not Supplied
Always ensure IDENTICAL microphones are used for parallel operation. Similar requirements are applicable for headphone characteristics. f) Always ensure that during SET-UP all of the many FSG 90F(X) functions are adjusted to achieve optimized radio system performance. g) Operation of amplified microphone systems close to the radiating... - Page 16 FSG 90F System 2. General Description W. Dittel GmbH THIS PAGE INTENTIONALLY LEFT BLANK Page November 2000...
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Page 17: Section 3, Installation
For FSG 90F set supply to 13.8 Vdc at radio input terminals. For FSG 90F-H1 set supply to 14.0 Vdc at radio input terminals. Turn ON the radio with the ON/OFF/VOL switch on front panel. Switch OFF the Squelch (push SQ button). -
Page 18: Particular Remarks To Fsg 90F(X) Transmitter Modulation
(spectrum mask) is the only true, real measurement method. Such measurements can be made only with specific test setup. 7. For tests of the FSG 90F(X) modulation capability, a sine modulation signal is useful only below some 70% AM depth, and is on the other hand helpful only in determining of possible overmodulation, but is not applicable to judge "voice distortion"... - Page 19 FSG 90F System 3. Installation W. Dittel GmbH ¬ Transmitter Check ¬ Frequency ¬ Distortion ¬ Scope ¬¬ Receiver Check Counter Analyzer > 15 W Dummy load, if required or ROHDE & SCHWARZ RADIOCOMMUNICATION ¬ VHF ¬Modulation ¬¬ VHF Signal...
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Page 20: Mechanical Installation
FSG 90F(X) VHF/AM transceivers are designed to be installed into the instrument panel or operating console from its front side. Fixing is made by four DZUS fasteners (ARINC NORM SIZE). All dimensions to install the FSG 90F(X) refer to Figure 3-3. For installation of the fastener strips refer to Figure 3-4. - Page 21 FSG 90F System 3. Installation W. Dittel GmbH 122 mm 47.5 mm FSG 90F(X) . 3-3: IMENSIONS NSTALLATION RAWING November 2000 Page...
- Page 22 FSG 90F System 3. Installation W. Dittel GmbH DZUS FASTENER STRIPS TYPE PR 35-1 Instrument Panel DZUS FASTENER Flat aluminium STRIPS profile 8 x 20 mm TYPE PR 35 Fig. 3-4: FSG 90F(X) Installation of the Fastener Strip Page November 2000...
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Page 23: Antenna Installation
• Distance to other aircraft antennas, like another COM, NAV antenna, should be at least 1.5 m/5 ft. When using two radios FSG 90F(X), a distance of 1 m/3.3 ft. between COM antennas is sufficient. • The antenna mounting area should be as flat as possible. -
Page 24: Airborne Wiring
Cable connector case mounting shall not clamp or damage the wiring. • The FSG 90F(X) is protected against reversed polarity only when using a suitable DC supply protection fuse. For 6 Watt models, we suggest a 3.15 Amp. quick acting fuse or an automatic 3 amp circuit breaker. - Page 25 DO NOT wire other pins than noted! Unless otherwise noted, all wires are #22 AWG (0.3 -0.4 sq. mm). Built-in circuit breaker when using Walter Dittel Battery A/C Power Supply, A/N F10023. Length of pre-fabricated wire harness F10189: 2.9 m/ 9.5 ft.
- Page 26 Intercom operation requires a microphone which provides audio OUT with the PTT key de-energized (not keyed). Built-in circuit breaker when using Walter Dittel GmbH Battery A/C Power Supply, A/N F10023 Length of pre-fabricated wire harness F10190: 2.9 m/ 9.5 ft...
- Page 27 FSG 90F System 3. Installation W. Dittel GmbH A/C antenna 470 R AF External input ¬¬ e.g. COM 2, NAV, MKR 470 R Audio OUT to Audio Panel FSG 90F(X) Antenna cable (as required) RG 58 C/U Antenna INTERCOM- #20 AWG Switch ¬...
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Page 28: Microphone Connection
During receive, while IC is ON, both the IC loudness and external audio volume are temporarily reduced to improve receive intelligibility. Receiving volume is set on the FSG 90F(X) front panel (VOL), while intercom volume can be optimized with a SET-UP adjustment. -
Page 29: Loudspeaker / Headset Interconnection
• In order to save current while supplied from battery an external suitable illumination switch is suggested. The FSG 90F(X) includes a display which can be back-lit. Pin 23 may be connected either directly to 14 Volt or to the switched 13.3 Vdc output Pin 24 (perhaps via a suitable dimmer). -
Page 30: Connection To A 28 Vdc Airborne System
3.6.2 Ground checks with engine running It must be ensured that the aircraft's electrical DC system voltage at the FSG 90F(X) input terminals is within the tolerances permitted at 14 Vdc (or 28 V with DC converter).