Automatic band decoder and antenna switches

microHAM supplies high quality accessories for your hamshack, such as Band Decoders, various types of Antenna Switches, Antenna Stacking devices, special devices designed dedicated for the SO2R operating technique, USB Interfaces and many others ...

microHAM Station Master

The microHAM Station Master is the successor to the popular Band-Decoder, and offers a lot of additonal functions. With the Station Master you integrate a lot of devices of your shack: automatic antenna switching with the freely programmable band decoder, computer controlled rotator direction,, CAT control of your radio, switching of bandpass filters, a sequencer for amplifiers and last but not least the integration of your SteppIR antenna. With the iLink connection you can further integrate your existing soundcard interface by microHAM: works with Micro-Keyer, Micro-Keyer2, Digi-keyer, Micro-Keyer2R(+) etc.

The most control functions are derived from frequency and PTT information. This offers you 20 frequency dependent output switches to control an antenna switch (for example). Some antennas can be declared as receive only antenna, the Station Master will block transmitting on these antennas. Additionally a freely programmable sequencer is availabkle, for example to control the delayed switching of pre amplifiers or amplifiers.

The intelligent rotor control allows the use of nearly any rotor manufacturer and type. The position information may be an analog voltage (e.g. Yaesu, Hy-Gain) or a digital pulse (e.g. SPID). Depending on band and your individual setup the antenna will turn automatically, for example after entering just the prefix of a call or a locator (depending on your log program).

Several fixed antennas can be grouped into a 'virtual rotr', selecting the right antenna depending of the destination. This can be used with antennas like 4-Squares or Beverages.

If you use a SteppIR or Ultrabeam antenna, this can also be controlled by the StationMaster. This has several benefits. A SteppIR antenna directly coupled to your transceiver would follow each and every frequency change, even when another antenna is in use. The Station Master transmits control information to the variable antenna only if it also the active antenna. Another benefit is that large split offsets can be compensated, the antenna will not retune between Tx and Rx.

With the clearly arranged controls of the Station Master, practically all functions can be controlled from the front panel. This makes the operation independent of a computer, provided the band limits and setup has been programmed once before.

The built-in CAT interface allows to connect nearly any radio to the computer and the log software. Already existing microHAM interfaces can be integrated with the iLink port. The required 'iLink' cable (both sides 6p MiniDIN, 1:1) is included in shipment. We offer an optional 10 keys keypad MK-KEYPAD, see below.

Station Master Features

  • General
  • Programmable Antenna, BPF, Rotor and PA controller
  • Twenty (20) programmable relay outputs
  • Integrated level converter for transceiver computer control port
  • Decodes all frequencies of connected transceiver, including 75m, 6m, VHF and UHF
  • Unlimited number of custom defined frequency segments "bands"
  • Single USB connection to computer
  • Stand alone operation
  • Internal Rotator control
  • Virtual Rotators function
  • Separate RX/TX antenna support
  • Automatic Antenna Scan function
  • Separately programmable up to 20 outputs sequencer
  • Automatic power amplifier support
  • Fully compatible and simple integrated with microHAM "keyers" MK, DK, CK, MKII and MK2R
  • Proprietary SteppIR support for automatic tunning and protection
  • Hot Switch protection with user defined timing
  • TX Inhibit support for Yaesu's transceivers
  • Receive only antennas support
  • Optical isolation from computer
  • PS/2 keyboard or keypad with dual control of Station Master and microHAM "keyer"
  • Integrated chokes and filters for maximum RFI immunity
  • Metal/Aluminum case, powder coated and silk screened
  • Free, no time limit firmware/software upgrades via Internet
  • CAT control
  • Integrated level converter for CI-V, FIF-232, IF-232, or RS-232
  • Up to 57600 Baud with fake handshake support
  • Supports most Elecraft, Icom, Kenwood, Ten-Tec, Yaesu and other radios
  • Antenna control (Port A):
  • Ten (10) programmable relay outputs
  • Configurable power for common
    • ground
    • 13.8V positive
    • external power, max. + 24V
  • Compatible with all remote antenna switches using common ground or positive control
  • Additional Antennas or BPF Control (Port B):
  • Six (6) programmable relay outputs
  • Configurable power for common
    • ground
    • 13.8V positive
    • external power, max. + 24V
  • Compatible with all automatic BPF on the market
  • RX Antennas and TX Sequencer (Port B):
  • Four (4) programmable relay outputs
  • Both poles of relay contact available
  • Independent settings of Lead and Tail delay for each sequencer output
  • Internal Rotator Control:
  • Three (3) programmable relay outputs
  • Both poles of relay contact available
  • Configurable support for BRAKE or SPEED control
  • Support for multi-turn rotators
  • Support for rotators with analog (pot) or discrete (pulse) azimuth read back
  • Programmable software limit switches
  • Dead zone definition
  • Target finding strategy selection for optimal handling
  • Support for "slipping" rotators
  • Four memories for most wanted azimuths
  • Automatic azimuth control from logger
  • Virtual Rotator Control:
  • Unlimited number of antennas can be joined to Virtual Rotator
  • Programmable azimuth ranges for each Virtual Rotator antenna
  • Automatic azimuth control from logger
  • Unlimited number of Virtual Rotators per Band
  • Power Amplifier Control:
  • Automatic tunning for CI-V controlled automatic amplifiers (Icom PW1, Expert SPE, Tokyo Hy-Power)
  • Automatic band switching for BCD controlled amplifiers (Yaesu VL-1000, FL-7000)
  • Support for QSK Power Amplifiers
  • Weight and Size:
  • Weight 950g
  • 230 x 130 x 45 mm (without protruding parts)
Order No.
MICRO-SM microHAM Station Master 369.00 € Buy now
Info freight charges

Special Cables for Station Master

Order No.
PA-ACOM-2000 Cable for Acom-2000A 77.50 € Buy now
PA-EXP-1KFA Cable for Expert 1K-FA 53.50 € Buy now
PA-VL-1000 Cable for Yaesu VL-1000 53.50 € Buy now
FT-INH-DIN8 'Inhibit' Cable Yaesu 18.00 € Buy now
PA-PW1-HL Cable for Icom PW-1 53.50 € Buy now
ROT-DXA-DXC Cable for rotors Yaesu DXA/DXC 65.50 € Buy now
Info freight charges

Cable list for microHAM CW-Keyer and Station Master

Order No.
CWK-CIV CAT cable for all Icom with CI-V remote interface (List) 17.90 € Buy now
CWK-IF232 CAT cable for various Kenwood (List) 17.90 € Buy now
CWK-RS232-KY CAT cable for various Kenwood and Yaesu (List) 17.90 € Buy now
CWK-DIN CAT cable for various Yaesu (List) 17.90 € Buy now
CWK-MINI6 CAT cable for various Yaesu (List) 17.90 € Buy now
CWK-MINI8 CAT cable for various Yaesu (List) 17.90 € Buy now
CWK-RS232-T CAT cable for Yaesu, TenTec etc. (List) 17.90 € Buy now
CWK-RS232-YX CAT cable for Yaesu FT-847 17.90 € Buy now
CWK-RS232-E CAT cable for Elecraft 17.90 € Buy now
CWK-RS2322ST CAT cable for TenTec Omni V 17.90 € Buy now
Info freight charges

CW-KEYER List of CAT cables

CWK-CIV Icom All Icom with CI-V interface, TenTec Omni VI, VI+  
CWK-IF232 Kenwood TS-50, TS-60, TS-140, TS-440, TS-450, TS-680, TS-690, TS-711, TS-790, TS-811, TS-850, TS-940, TS-950
TS-50, TS-60: requires IF-10D
TS-140, TS-680: requires IF-10C
TS-711, TS-811: requires IF-10A
TS-940: requires IF-10B
CWK-RS232-KY Kenwood/Yaesu TS-480, TS-570, TS-590S, TS-870, TS-2000
FT-1000MP / MARKV / Field, FT-2000, FT-950, FT-DX3000
CWK-DIN Yaesu FT-736, FT-747, FT-767, FT-980, FT-990, FT-1000, FT-1000D
FT-990: requires ROM version 1.3
FT-1000/1000D: requires ROM version 6.0
CWK-MINI6 Yaesu FT-757GX-II, FT-840, FT-890, FT-900  
CWK-MINI8 Yaesu FT-100, FT-817, FT-857, FT-897  
CWK-RS232-T Yaesu,TenTec FT-920, TEN TEC Argonaut V, Jupiter, Orion, Pegasus  
CWK-RS232-YX Yaesu FT-847  


10er Tastatur

The 10 Keypad is directly connected to the microKEYER and allows control of various CW functions, like recall of stored standard buffers, adjusting speed and many more. The RTTY functions require a full PS/2 keyboard (a USB keyboard will not work!).

Order No.
MK-KEYPAD 10 keypad 25.40 € Buy now
Info freight charges

microHAM antenna switches

Remote controlled antenna switches for 6 or 10 antennas

The antenna switches by microHAM are weatherproof for mast mounting, but can be operated in the shack as well. The switches can be controlled by the "micoHAM band decoder" (see above, 5m cable included) or other band decoders. The PCB in the switches is a special HF design with striplines, using individual stubs for optimum SWR and lowest insertion losses. Unused antennas are grounded, when unit is powered off all antennas are grounded. The solid aluminum die cast chassis with 4 mm wall thickness provides excellent protection against RF interference (class IP66). Normally all switches come with PL jack (female), N jacks are optionally available. Switches are available with 1-to-6, 2-to-6 or 1-to-10 configurations.

Typ micro Six Switch micro DoubleSix Switch micro Ten Switch
No. of radios 1 2 1
No. of antennas 6 6 10
Frequency Range 0 - 60MHz 0 - 30MHz 1.7 - 60MHz
Impedance 50Ω 50Ω 50Ω
Relay voltage +9 to +16V +9 to +16V +9 to +16V
Max. current consumption max. 80mA max. 180mA max. 80mA
Dimensions 220 x 103 x 120mm 220 x 103 x 120mm 220 x 103 x 120mm
Weight without mounting bracket 2.2kg 2.4kg 2.4kg
Temperature range -35° to +70°C -35° to +70°C -35° to +70°C
Max. Power (CW)
1.8 to 30MHz
5KW at SWR 1:1.3
3KW at SWR 1:2
2KW at SWR 1:3
5KW at SWR 1:1.3
3KW at SWR 1:2
2KW at SWR 1:3
5KW at SWR 1:1.3
3KW at SWR 1:2
2KW at SWR 1:3
Max. Power (CW)
30 to 60MHz
1.5KW at SWR 1:3 - 1.5KW at SWR 1:3
SWR at 1.8MHz
Insertion loss at 1.8MHz
Isolation at 1.8MHz
>80 dB
>64 dB
>58 dB
>50 dB
85 - 115 dB
65 - 100 dB
60 - 90 dB
>75 dB
>61 dB
>55 dB
>47 dB
Order No.
374.00 € Buy now
555.00 € Buy now
425.50 € Buy now
Order No.
446.00 € Buy now
535.00 € Buy now