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1. for each radio cable Station Master includes the option to select from among multiple antennas per band microHAM 2011 rights reserved Manual Control microDOUBLE TEN Switch is also usable without an automatic Band Decoder In such case the user will need to supply a manual 1 of 10 switch for each radio The design for such a switch is shown at Figure 7 06 2FEMALE 1 Ai o T GHD GND cable mieg TEN from Antenna Switch Manual Switch Box Fig 7 microHAM 2011 rights reserved TYPICAL PERFORMANCE The following figures show measurements on port 4 More detailed results for all ports are available at www microham com SWR toport4 bl Reflection SWR 4 45 Ref 1 88 C C I PE N ME oo oo r EN Fig 7 SWR is measured from the input to the selected antenna port 10 microHAM 2011 rights reserved Insertion loss A to Port 4 bl OF fF 2 Transmission Log Mag 8 05 dB Ref 80 88 2 Start 1 008 MHz Stop 30 808 MHz Mkr MHz 1 88 3 58 7 00 14 02 21 00 28 00 30 00 Fig 8 11 microHAM 2011 rights reserved Isolation A to Port 2 B to Port 4 bl OFF 2 Transmission Log Mag 28 8 dB Ref 9 80 dB k O IT N Ul 7 oo Start 1 008 MHz Stop 30 088 MHz Mkr MHz 2 Mk Fig 9 Isolation is measured as the signal level at the port selected on A vs Power input at B with the p
2. L 3 6 kg 7 93 lbs 1 5 kg 3 30 lbs fixture 14
3. associated documents and accessories in the original unopened package prepaid to microHAM or to your supplier for refund less shipping and a restocking fee 13 microHAM 2011 rights reserved SPECIFICATIONS Frequency range 2 p EE 1 7 30 MHz Characteristic impedance 50 ohm Number of antenna ports 10 Number of radio ports sinistres anni sereine 2 Supply voltage 12 to 16V DC to select Consumption dee eee max 180mA Isolation voltage of relays 10KV Connectors PTFE 50239 or N depending on version rc scm 2 MHz lt 1 03 1 14 MHz 1 06 1 28 MHz lt 1 15 1 Insertion loss typical 2 MHz lt 0 03 dB 14 MHz 0 03 dB 28 MHz 0 06 dB Isolation depending on port 2 MHz 80 115 dB 14 MHz 70 105 dB 28 MHz 60 80 dB Guaranteed power rating SWR Ecole 71 30 MHz lt 5KW SWR lt 2 Rt 30 MHz 3KW SWR E cr eR EE 30 MHz 2KW Operating temperature range 85 70 C 31 158 F Dimensions W 360mm 14 18 x H 103 mm 4 x D 120 mm 4 72 Weight e
4. e the L plate and the double C clamps First install the mounting hardware to the tower position the part 1 next to part 2 Push the long screws 3 through these parts and fix the screws inside part 2 using washers and nuts Place these parts on the tower from back side push part 2 onto the screws with teeth to the mast and fix using washers and nuts Then using 4 short screws and lock washers 4 install the box of the antenna switch Finally attach the antenna switch lid using the four captive screws from the bottom side The installation procedure is illustrated on Fig 3 Fig 3 Before fixing the switch lid carefully dry the whole box and the lid optionally insert humidity absorber into the box After installation and functional testing fix and tighten all connectors and insulate them using a suitable tape Also insulate all unused ports or use protection caps microHAM 2011 rights reserved Connecting the Switch micro DOUBLE TEN SWITCH connects directly to microHAM Station Master or other band decoders and antenna selectors providing 12 to 16 volts to select an antenna Connect terminals A1 A10 shown in the foreground in figure 4 below to the antenna select outputs and the GND terminal to the ground or DC return terminal of the band decoder or antenna controller for one radio Connect terminals B1 B10 to the antenna select outputs and the GND terminal to the ground or DC return terminal of the band dec
5. le and parallel the extra wire plus shield with the eleventh return conductor CONFIGURATION The antenna switch enables switching 10 antennas to either of two radio ports The basic configuration is such that each band from 160m to 10m has a separate antenna port port 1 for 160m port 2 for 80m etc The microHAM Band Decoder discontinued and microHAM Station Master Port A have DB25 connectors for connecting an antenna switch Typical connection information is shown in the following table Band DB25M Antenna port 160 20 1 80 21 2 40 22 3 30 10 4 20 23 5 17 11 6 15 24 7 12 12 8 10 25 9 60 13 10 GND 18 19 Table 2 microHAM 2011 rights reserved If you have multiple antennas on one band it will be necessary to select them using an external switch For example Band Antennas 160 Vertical 80 Delta Loop Inverted V 60 Dipole 40 XM240 30 3el Yagi 20 6el Yagi 17 12 WARC Dual Band Yagi 15 717 stack 10 6 6 6 stack Assign Decoder outputs and connect antennas to the switch ports as shown Decoder Output Antenna Switch Port 160 Vertical 1 80 Delta Loop 2 80 Inv V 3 60 Dipole 4 40 XM 240 5 30 Yagi 6 20 6el Yagi 7 17 12 WARC Yagi 8 15 7 7 Stack 9 10 6 6 6 Stack 10 For the 80m band an external two position switch or Band Decoder option will be needed
6. microHAM 2011 All rights reserved micro DOUBLE TEN SWITCH microHAM fax 421 2 4594 5100 e mail support microham com homepage www microham com 5 December 2011 microHAM 2011 rights reserved TABLE OF CONTENTS CHAPTER PAGE 1 IMPORTANT WARNINGS edes Qd and 3 2 DESCRIPTION 2 as uu DU KO vocet DN 3 3 CHARACTERISTICS AND FUNCTIONS eee 3 INSTALLATION occa na CEN ROM LOI CERA ECL UON CLE aa 5 Di CONFIGURATION ramener iK UG andi 8 b TYPICAL PERFORMANCE rp end 10 7 PACKAGE CONTENTS nnmis dao antaa aad Kd A Cats 13 8 WARRANTY nnda an anne dI n riis pua 13 9 SPECIFICATIONS Green donnee 14 microHAM 2011 rights reserved IMPORTANT WARNINGS DESCRIPTION micro DOUBLE TEN SWITCH antenna switch is a remotely operated antenna switch antenna relay It can select ten antennas to each of the two common radio ports and can be installed either in the shack or on the tower CHARACTERISTICS AND FUNCTIONS 10 antenna positions enable use of separate antennas for every band massive cast aluminum wall thickness 4mm 0 158 IP 66 class enclosure with O ring seal guarantees a high level of protection against weather and RF interference enclosed relays have insulation vol
7. oder or antenna controller for the other radio Fig 4 Configure your controller or band decoder to activate the appropriate output for the desired antenna on each band With some decoders it may be necessary to use summing diodes connect multiple outputs to a single control lead for example when using a multiband antenna If the micro DOUBLE TEN SWITCH is going to be placed outside your band decoder should have relay outputs or you should use an auxiliary relay driver board to protect any decoder with solid state drivers Remember that the best protection is a galvanic isolation with a high isolation voltage microHAM 2011 rights reserved Cable length vs Wire Size If antenna switch is located some distance from the decoder or controller it is necessary to use a cable of the appropriate length and wire size Cable length Conductor diameter Conductor Cross section AWG m ft mm mm 2 50 150 0 4 0 14 26 100 300 0 5 0 2 24 300 1000 0 8 0 5 20 It is helpful although not necessary to use a shielded cable with the shield used as an added ground lead to reduce voltage losses Connect one end of the cable to the terminals of antenna switch and solder the other end to an appropriate connector for your controller or band decoder micro Ten Switch requires a cable with eleven conductors ten antennas plus return ground It is convenient to use shielded 12 wire six pair cab
8. ort selected at B terminated in 50 ohms 12 microHAM 2011 rights reserved PACKAGE CONTENTS The product includes micro DOUBLE TEN SWITCH and mounting bracket If the shipment is incomplete please contact us at the following address E mail support microham com fax 421 2 4594 5100 by Post microHAM s r o Nadrazna 36 90028 Ivanka pri Dunaji SLOVAKIA WARRANTY microHAM warrants this product for three 3 years The product must not be modified in any way or the warranty is voided What is covered During the warranty microHAM s r o will repair or replace defective product at their sole discretion You must send the unit postpaid with a copy of the original invoice to the distributor from whom you purchased the product microHAM will pay return shipping What is not covered This Limited Warranty does not cover 1 damage caused by misuse negligence user modifications or failure to follow the user manual 2 connection to improper or excessive voltage or voltage surges 3 the incorrect installation of any cables connected to the device by the user 4 weather related storm lightning or electrostatic discharge damage 5 damage due to switching with RF power applied hot switching microHAM assumes no liability or responsibility for damage to other devices or injuries to persons as a consequence of using our products If the terms of the above warranty are not acceptable return the unit all
9. tage of 10KV contacts are of high silver content alloy microstrip PCB architecture with a compensated stub provides low SWR and insertion loss in the range of 1 7 to 54 MHz integrated surge protection compatible with any band decoder with 12V source output lid screws are secured against fallout easily mounted on a wall or tower using a massive fixture in the shape of double C enabling installation on tubes tower legs of various diameters all antenna ports are grounded without power all unselected antenna ports are grounded two level interlock against connecting the same antenna to both outputs microHAM 2011 rights reserved INSTALLATION The antenna switch is intended to be used either inside or outside Installing inside the shack If the switch is operated inside the shack it can be installed in any position It can be installed onto the wall using 4 screws see Fig 1 Fig 1 or using the L fixture connectors up or down see Fig 2 Fig 2 microHAM 2011 rights reserved Installing outside the shack When installed outside the shack on a tower the orientation of switch is of great importance Mounting the switch in any way other than connectors down may result in moisture leakage into the enclosure Moisture accumulation may cause improper operation adversely influence function and even may result in a failure of the switch Always install the switch in position with connectors down Us

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