UHF RADIO TRANSMITTER 3694 UHF RADIO RECEIVER 3696 UHF RADIO REPEATER 3711 A short range real-time telemetering system for Aanderaa PDC-4 raw data signals from Automatic Weather Station 2700, Data Buoys and other monitoring stations.
Approved by the Norwegian Post and Tele-communication Authorities. Approval No.99000011and 99000012.
Automatic weather stations and data buoys are normally Arm used on AADI Automatic Weather Stations and placed far from inhabited areas. To convey data in Data Buoys. The Receiver 3696 and Repeater 3711 real-time from these stations or buoys, UHF radio have a cone joint with an 18-pin receptacle which fits communication has been found to be a good and a vertical 2” aluminum mast section. inexpensive solution. The Radio Transmitter 3694, Radio Receiver 3696, and Radio Repeater 3711 have The antenna has a good low angle omnidirectional been designed to take care of this data transmission. radiation pattern. The modulation type for the transmission is frequency modulation which allows The radio set is a low power, short range system, the 10-bit PDC-4 Aanderaa code to modulate the operating in the UHF band on frequencies between transmitter directly. 400 and 500MHz, and requires line of sight between the transmitter and the receiver to function properly. The output from the receiver is PDC-4 signals, the same A typical application for the radioset is transmitting as the input to the transmitter. This code is accepted a message from an AADI Automatic Weather Station by the 3127 Deck Unit for transfer of data into a PC. every 10 minutes. This message consists of a number of 10-bit data words and lasts for about 4 seconds per The range of the radio set varies with topography. On word. land and over uneven terrain a range of 50km is realistic provided line of sight. Over flat land and water the The Transmitter 3694 has a 2.5” OD aluminum housing range is only 6-8km with a normal antenna height. with a half wave whip antenna on the top and a standard AADI sensor foot with a 6-pin receptacle at its lower end. To get a better range or where line of sight is not The transmitter fits directly onto the AADI Sensor Cross possible, use Repeater 3711.
D313 - Jan 2013 System ground -6 volt Power supply Receptacle, external view; Pin configuration UHF Transmitter 3694 Power supply Pin Config.UHFReceiver3696andRepeater3711 © 2012 Xylem, Inc. Aanderaa isatrademarkXylem of Inc. itssubsidiaries. oroneof www.aadi.no thisdocumentandmore informationof Visit our Web siteforthelatest version -6 volt(3711 only) Specifications UHF Radio Transmitter 3694: 166mm 43mm 260mm Receiver 3696: 210mm
Ø 25.5mm Ø 63.5mm
D313 January 2013 Illustration of thetransmitter.Illustration of Note: bushing = Orientation hole O-ring 24.6x2.4 O-ring RM0516-24 6-pin Lemoinsert Body Cover O-ring 0416-24 O-ring SOR131 4052: M8 Setscrew Electronic board Whip antenna o Antenna foot3704 ;Pin = Signal
NC NC Norwegian Type Approval No. 99000011 Adapter 3715 For installation ona2”conejointwith18-pinpluguse Connection 3694: Net weight: Temperature stability: Current consumption: Input impedance: Output impedance: Output power: Frequency: Type transmission: of RF module: Net weight: Current consumption: Input impedance: Output signal, PDC-4: Frequency: Sensitivity: Type reception: of receiver: Double heterodyne RF module: UHF Radio Receiver 3696 U Operating temp.: Material andfinish: Common toallunits Otherwise specifications asfor3694and3696 RF module: Accessories, optional: Dimension: Connection:
UHF Radio Repeater 3711 by thesameauthority. the user. Actual frequency willnormallybespecified from theap responsibility forobtainingtheapplicablepermission Concerning thisequipment, restrictions onuseof the * Note: Power supply: Approval: Antenna: HF Radio Transmitter 3694 Fax +4755604801 Tel +4755604800 Midtun, 5828Bergen, Norway Sanddalsringen 5b, P.O. Box 103 Aanderaa Data Instruments AS pro pri ate authoritiesremains solelywith
550g ±5ppm Transmitting 100mA max 10kΩ 50Ω 100mW max chan 400 to500MHz* Frequency shift F1D Woods &Douglas, ST 500 700g 40mA 50Ω 6V, 35mA at maximumload As transmitter* -117dBm at 12dBSINAD Frequency shift, F1D 2nd I.F.455kHz 1st. I.F.45MHz Woods &Douglas, SR500 – 10-15µ Aluminum 6061T, anodized 2852, 10m(shield) vertical sur cone forfitting receiver toa Brackets 3346&tubewith H: 166mm, OD:63mm Radio Cable 2852 standard mastsectionwith 18-pin receptacle mating – ETS 300220, ETS300683, with connectortypeN wavevertical whiptype Half Woods &Douglas, SX 500 3435, 3465and3485 Sensor Cross Arms 3415, mating receptacle 6-pin Standard sensorfootwith 30 to+ 7 to– nel spacing:25KHz 14Vdc 50°C face. Radio Cable
(see front picture)