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Vine Antenna DU-1500L | 1.5Kw Manual ATU | LAMCO BarnsleyPrice: £599.95 SKU: LAMCO DU-1500L ATU Product Categories: VINE ANTENNAS ANTENNA TUNERS Product Tags: ATU, DU-1500L, LAMCO DU-1500L, LAMCO DU-1500L 1.5Kw Antenna Tuner, Vine Antenna DU-1500L 1.5Kw Antenna Tuner LAMCO Barnsley Product Page: https://www.vine-comms.co.uk/product/vine-antenna-du-1500l/
Product DescriptionVine Antenna DU-1500L 1.5Kw Antenna TunerLAMCO BarnsleyVine Antenna DU-1500L 1.5Kw Antenna Tuner LAMCO Barnsley
EASY START GUIDE Read all the information in the manual leading up to this point,then use the below Instructions to start using your tuner. Set CAPACITOR to '2' and INDUCTOR to fully counter-clockwise ('0') and the center Switch to BAYPASS. Turn the center switch to the LOW Z 1 position (immediatly to the left of BAYPASS) Apply 30 to 50 watts of transmitter power and note SWR show non the meter. Unkey the transmitter and then move the switch to the HIGH Z 1 position. Apply 30 to 50 Watts or less transmitter power and note SWR show non the meter. Depending on wich of the HIGH Z 1 or LOW Z 1 settings showed a lower SWR, try more positions on the same side to see if the SWR is lower. Choose the position among all switch position that shows lowest SWR. Adjust the capacitor for lowest SWR. Then turn the roller inductor clockwise to a higher setting and note if SWR changes. If SWR drops adjust the capacitor for a lower SWR Value. Go back and forth between these two controls adjusting them for best match and the lowest available SWR. If the capacitor shows best meter null (lowest SWR) at a setting of '0' turn the center switch to the other side of BAYPASS. If the best meter null (lowest SWR) is with the capacitor at '100' turn the center switch to the next higher position. It possible depending on your antenna and the frequency in use that a good'starting' match may not be readily apparent (i.e. all starting positions ont he center switch show a somewhat high SWR). Try adjusting the roller inductor and/or capacitor to a higher initial setting and repeat the same instrictions if this the case. WARNING: While all the components of the DU 1500 L are rated to easly handle continuous duty operation at full rated power, do NOT adjust the antenna tuner when runnung high Output power. Adjust the tuner lowest SWR at less that 50 watts and then enable your linear amplifier. High circulating currents are present when high power is applied to the tuner adjusting the tuner controls for lower SWR while running high power through the tuner can damage the unit. WARNING: In normal operation the DU 1500 L produces very high RF voltages and currents.We do not recommend operation of this without the top cover securely installed due to the danger of contact with high voltage. Always be sure that a dummy load or antenna is properly connected when power is applied. Voltages in excess of ratings can occur if no load is connected. SPECIFICATION FRONT PANEL INDICATORS AND CONTROLS Meter ........................................ Cross needle Power and SWR meter CONTROLS Input Tuning .............................. Continuous rotation 4,5kV capacitor 330pF Output Tuning ........................... Continuous rotation 4,5kV capacitor 330pF Antenna Switch Selector........... Five position ceramic switch: COAX 1, Tuned and COAX 2 Tuned and BYPASS, COAX 1 DIRECT, COAX 2 DIRECT Power Range Switch ................ Two position: 3 00W/3kW REAR PANEL CONNECTORS Coax 1 ...................................... SO-239 Teflon connector Coax 2 ...................................... SO-239 Tflon connector Balanced Line ........................... Dual high voltage ceramic terminal Include 4:1 balun OTHER Frequency Coverage ................ 1.8-30MHz ,continusoly tunable Power Maximum ....................... 3000W max 3kW Input impedance ....................... 50ohm Output inoedance ..................... 25-600ohm an d wire 2000ohm Dimension ................................. H 330xW 330xD 120 Weight ...................................... 5.5kg
CONTROL/CONNECTORS FRONT PANEL FUNCTIONS (Refer to page 3)
Continously adjustable input capacitor
Dual needle meter displays FORWARD and REFLECTED Power in Watts. The SWR in measured where the two needles intersecton the red scale.
Continuously adjustable output capacitor.
Five-position rotary switch an output coaxial connector.
impedance matching circuit but provinding SWR, FORWARD and REFLECTED power meter readings.
LECTED meter readings.
Two-position switch selects the range (300W or 3kW) of FORWARD and REFLECTED Power displayed on the power meter. When the METER (power range) switch 300W the FORWARD meter scale reads 300W full scale and the REFLECTED meter scale reads 40W full scale. When the METER switch 3kW, the FORWARD meter scale reads 3kW full scale and the REFLECTED meter scale reads 400W full scale.
REAR PANEL CONNECTORS
Coaxial connector for input from SWL receiver or transmitter.
Coaxial connector for output to Antenna One or Wire Antenna
coax output.
Post/Wing-nut type ground connector.
Two feed through ceramic posts for output to RF balanced twin-lead antennas.
INSTALLATION Select a location for the DU 1500 that allows the connectors to be free of any possible contact during operation.
WARNING: SOME BALANCED OR END-FED ANTENNAS WILL PRODUCE HIGH RF VOLTAGES AT THE FEEDTHROUGH CONNECTORS. RF BURNS MAY RESULT IF TOUCHED DURING TRANSMISSION.
INSTALLATION PROCEDURES
This lets you select the dummy load from the OUTPUT SELECTOR switch. Any antenna that does not require the use or fan antenna tuner may be connected to the BYPASS connector, if desired.
BEFORE OPERATION
WARNING: DO NOT OPERATE THE DU 3000 WITH THE COVER OFF!
NOTES
Gives the highest FORWARD power reading. Gives the lowest REFLECTED power reading.
Uses the largest capacitance (highest number) on the TRANSMITTER and ANTENNA controls.
OPERATION INSTRUCTIONS The followings set of instructions will allow the operator to quickly place the DU 1500 L into operation.Included are descriptions of the fromt panel controls and their functions. This is followeed by instructions for antenna matching and selection,and a brief discourse on antenna systems matching thery. (1)CAPACITOR This control connects to tje variable tunung capacitor used as one of the elements in the L type matching network.This capacitor has a tuning range of 40-500pF and is continuous tuning with no stops. (2)INDUCTOR This control is connected to the roller inductor,another element int he L type matching network.This inductor has a tuning range of 0,2-18uH which is coveredin approximately 30 revolutions of the control knob.A gear reduction system behind the front panel of the DU 1500 L is connected to a concentric skirt turns counter numbered 0-29 in 180 degree Arc over the top of this control,to make returning to earlier settings easier and quicker. (3)IMPEDANCE SWITCH This 11 position rotary switch is used to change the configuration of tuning network For matching eitherhigh or low impedance antenna systems.This switch also selects Additional capacitors as needed for matching at lower frequencies.When placed in the 12o'clock position,the tuner is connected to the BYPASS configuration and the network has on effect ont he transmission line systems(antennas are fed through directly from the transmitter to the antenna without use of the tuner.)The SWR and power metering remains usable even when this switch is set to BAYPASS. The purpose of this switch is to set the capacitor either across the input or across the antenna, Depending on whether a load of above or below 50 ohms is trying to be matched(reverses the L network). (4)ANTENNASELECT KNOB This 3 position switch is used to select one of up to four antennas conected to the rear panel Of the DU 1500 L and correspond to theCOAX1,COAX2,COAX3 connectors. (5)METER The meter on model DU 1500 L dual crossneedle SWR and wattmeter. Forward power output ismeasured on the right-hand needle,left-hand scale. Reflected power is read on the left-hand needle,right-hand scale. SWR is read by reading the point at which the two needles cross on the red scale lines on the face of the meter. Power output is read in switchable scales of 200 or 2000 watts. (6)POWER RANGE SWITCH The power scale switch is used to set the power output metering to scales of either 200 or 2000 watts.
CHAPTER 3 SPECIFICATIONS Circuit Type: L network RF Power Rating: 2000 watts Frequency Range:1.8-30MHz continuous Input Impedance: 50 ohm nominal Output Matching Range: At least 10:1 SWR,any phase angle. Input/Output Connectors:Input and four antenna coax connectors Are SO-239,UHF type.Studs with wing nuts for single wire and Balanced feeders. Capacitor Voltage Rating: 3500 volts Inductor: 0.2-18 uH silver-plated roller inductor. Size: H12 x W33 x D33 cm Depth measurement cabinet only, Does not account for knobs or connectors. Weight: 5.5 kg https://www.hamradio-shop.co.uk/product/vine-antenna-rs-hf-osf-80/ https://www.hamradio-shop.co.uk/product/vine-antenna-rs-hf-ocf-40/ Product Gallery
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