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6-to-2 antenna switch IND-I Triplexer

6-to-2 antenna switch IND-I Triplexer

This is high isolation, low loss 6 to 2 RF switch for indoor use. Designed for triplexer.

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422.29 € (tax incl.)

422.29 €
349.00 € (without tax)

in stock, shipped in 2-3 days

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The lowest price in the 30 last days was 422.29 €

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Description

This is the indoor version of the popular RF switch six to two. The indoor version - IND-I - means that it is not waterproof and includes a fan with a dust filter. This version has a redesigned RF PCB with improved parameters. The overall design has been modified so that the switch can be easily disassembled for inspection or repair. The switch consists of an RF PCB, a shielding spacer, and a board with protective FiFo logic, BCD inputs, and RFI filters.

The switch can be used to switch six antennas to two TRX - SO2R, switch filter banks, or switch six TRX to two outputs. The modified version allows a frequency range up to 70 MHz. The control is classic, i.e., 2x6 control wires, or BCD, or a combination of both. In the case of BCD control, a wide range of control voltages can be used.

The protection board also provides FiFo switching – First In, First Out. This means that whoever selects the port first gets to use it, and the second person cannot select it. The protective plate includes an LED indicator for easy control and function monitoring.

The Triplexer version is slightly different from the Classic version. There, small dummy loads are connected to three ports: 1, 3 and 5. These are 5 W resistors with an impedance of 50 ohms. In addition, they feature unique protection against overheating and disconnection at high power. The other ports are connected to GND.

The ports with dummy loads can be used to connect a diplexer or triplexer. The unused ports of there filters are loaded with a characteristic impedance of 50 ohms to ensure their parameters.

The switch includes a fan and dust filters. Since the switch is expected to be placed in an enclosed space where temperatures may be higher, it is recommended not to disconnect the fan. Especially at higher power levels and in digital modes, the relay may heat up.

Main functions

Six ports switchable to two inputs/outputs
Frequency range DC to 70 MHz
Characteristic impedance 50 Ohm
High isolation and low insertion loss
Ports 1, 3, 5 with internal dummy load 50 Ohms 5 W
Ports 2, 4, 6 connected to GND
Power rating DC to 30 MHz
- 3 kW continue wave
- 4 kW PEP (SWR < 1:1.7) - tested with OM-4000
- Power rating 2 kW @ 50 MHz, 1 kW @ 70 MHz
Control positive DC 2 x 6, 2 x BCD or combination
Hazzard board protection with 2 x 6 and BCD inputs
First-Win logic
High quality RF PCB thickness 2 mm
Fan with dust filters
High quality connectors
Aluminium shield enclosure
AL box size 250x145x100 mm (with connectors)
Stainless screws
ASSEMBLED and TESTED VERSION

Parameters

Frequency range DC to 70 MHz
Power rating DC to 30 MHz
- 3 kW continue wave
- 4 kW PEP (SWR < 1:1.7) - tested with OM-4000
- Power rating 2 kW @ 50 MHZ, 1 kW @ 70 MHz
High isolation between A and B ports: 100 dB (20 m), >90 dB (10 m) - no port selected
High isolation A-1 and B-2: >95 dB (80 m), >82 dB (20 m), >75 dB (10 m), 69 dB (6 m)
High isolation A-1 and B-6: >98 dB (80 m), >90 dB (20 m), >83 dB (10 m), 78 dB (6 m)
Ports 1, 3, 5 with internal dummy load 50 Ohm 5 W
Ports 2, 4, 6 connected to GND
Ports with dummy loads have little bit lower isolation
Control DC 2 x 6 wires + 12 to 15 V or image
Control BCD + 3 to 15 V (TTL compatible or direct 13 to 15 V BCD) image
When the BCD voltage is higher than 13 V, it directly supplies the relay
BCD inputs with optocouplers and protections
BCD inputs wide range 3 to 15 V DC
BCD data format is 1 to 6
BCD inputs with positive control compatible with OM-power, Microham. Pull up for open collector - image
DC supply voltage is recommended 13.8 V
DC supply current up to 0.4 A
Fan with lower speed
Dust filters

Isolation example

TRX A output power 1 kW =1,341 k 60 dBm
Isolation to port B is 80 dB → 60 dM - 80 dB = -20 dB
~10 UW at TRX port B

⚠ DO NOT forget to

Isolation between antennas!
The safe power isolation is not only about the switch isolation!
Never switch relay during TX!
Use high quality RF connectors and coax cables. The shielding of coaxial cables has a significant impact on insulation and potential interference.

Connection

You can use 2 x 6 + GND = 13 wires (12 to 15 V DC)
You can use 2 x BCD (TTL) + GND + 13.8 V = 8 wires
You can use 2 x BCD (> 13 V) + GND = 7 wires
Combination: one port 6 wires, second BCD

Available as

ASSEMBLED: ready to use

RECOMMENDATIONS TO BUY:

Easy Controller 6-2

Included in package

Switch assembled and tested

Manual

If you want to know more please check our wiki with 6-to-2 IND-I manual.

Third party software FreqEZ

ℹ FreqEZ is a Do-It-Yourself hardware/software project by Larry K8UT that provides highly configurable Band Decoding and Remote Antenna Selection. For amateurs who use N1MM+ and DXLab logging software, FreqEZ will leverage those programs TCP/UDP broadcasts for antenna switching. For other amateurs, FreqEZ can connect to the BCD band outputs available from most transceivers. The FreqEZ software and is freely available to all hams, and consists o

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