DRAKE MN2700 Instruction Manual Download Page 1 | Manualshive

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DRAKE MN2700 Instruction Manual Download Page 1

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Summary of Contents for MN2700

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Page 4: ... 3 m 1 7 a p 5 I F z j L 5 3 6 z z 7 i g e I dL_w l r Z R L DRAKE COMPANY 19 78 I 7 1 r 6 C YL f c 7 PRINTED IN U S A 7 z u _ j a 2 s y22 a E s aar rr _ ...

Page 5: ... Description Specifications INSTALLATION 2 1 Unpacking 2 1 Location 2 1 Requirements 2 1 Antenna Connections 2 1 OPERATION Front Panel Controls Rear Panel Connections Use of the Drake B 1000Accessory Balun Operating Procedure 0ff the Air Tuning Reflected Power Use with Transceivers or TIR Combinations CHAPTER IV MAINTENANCE ...

Page 6: ...Fig 1 1 MN2700 Matching Network ...

Page 7: ...itor transmitter power output in watts directly and continuously 3 Attenuate 2nd harmonic output from a trans mitter by 25 to 35 dB thus it may eliminate the need for a low passTVI filter fixed loading 5 Give optimum match with multiband antennas 6 Precisely match a transmitter to an antenna across a complete amateur band 7 Permit off the air transmitter tuning using a dummy load 8 Eliminate the n...

Page 8: ...5 l VSWR referenced to 200 ohms 3 l on 10 meters Rear Panel Feed point impedances up Connectors to 5 l VSWR referenced to 50 ohms Also 5 l referenced to 200 ohms with the Drake B 1000 ac cessory balun 3 l on 10 meters 1000 watts average continuous duty 2000 watts PEP Reads VSWR or forward power 0 200 watts or 0 2000 watts f 5 of reading 1 of full scale 0 5 dB or less on each band after tuning Heig...

Page 9: ...Chapter 111 Operation of this manual for service Connect the EXT GND post of the matching net work to the station ground with a short piece of NOTE heavy braid Fill out the enclosedregistration card and return it to the factory within 10 days of 2 4 ANTENNA CONNECTIONS purchase to insure registration and validation of the warranty Antennas such as beam antennas single band dipoles trap dipoles and...

Page 10: ... Fig 3 2 Rear Panel Connections ...

Page 11: ...mponent of the load Resistive Range Switch Switchesin additional fixed capacity to provide additional resistive tuning range 3 2 REAR PANEL CONNECTIONS Figure 3 2 XMTR Jack 50 239 socket for input from the transmitter DL Jack 50 239 socket for the connection of a dummy load oranother coaxial fed antenna ANT 1 and ANT 2 50 239 sockets for 2 separate coaxial fed antennas LW3 and LW4 Screw terminals ...

Page 12: ...age to the matching network and the transmib ter Initial tuning must be done with low transmitter power Final small ad justments may be made at full power Do not change any switch positions under high power Preset the operating controls as follows BAND Switch To desired band Resistive Tuning To 5 Reactive Tuning To 5 Resistive Range To o 10 Reactive Range To o 10 VSWR Set Control Fully Countercloc...

Page 13: ... minimum VSWR and then increase the transmitter power to normal operating level 3 6 REFLECED POWER It is possible to read reflected power with the When the matching network has been adjusted MN 2700 although the instrument was not primari the lowest possible dip it is properly tuned to pre ly designed to do this T read reflected power first sent a 50 ohm resistive load to the transmitter Ad rotate...

Page 14: ...NOTES ...

Page 15: ...meter If any problems arise that cannot be corrected either return the unit to your dealer or write to our Service Department Please describe your problem in detail including external connections control settings type of antenna transmitter ete Do not return your MN 2700 to the factory without proper authorization Send your requests for authorization to the following address R L DRAKE COMPANY 540 ...

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