Modular 7 ANT RX switch system |
 
This is ideal solution for Single OP through SO2R to Multi-Multi, with up to 2 independant RX per band!
Modular 7 RX ANT switch
- Broadband
- Low insert loss
- High Isolation
- Internal dummy loads 50 or 75 Ohm / 2W
- Simply LC BPF for dummy load isolation
- Internal high voltage/current protections
Controller More: link
- Manual rotary switch 7 RX ant + off
- Three bands BPF + BYPASS
- Ext RX ANT switch for TRX
- Internal PCB
- Three BPFs for 160m-80m-40m and bypass.
- High IP3 preamp with 2N5109.
- variable ATT allows set gain of preamp.
- In/OUT protections.
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7 ANT RX splitter system |
 
This is the box which allows you to split (up to 7) RX antennas to 2 RX. You can take advantage of this for 2 independant RX on band(s). You can insert this splitter between two 7 RX ANT SWITCHes and there is complete solution for 2 independant RX on band.
- Info:
- Broadband: 0.1 MHz to 60 MHz
- Splitter or Combiner
- Low loss
- Protections- high voltage / current
- 50/75 ohm impedance - easy jumper switch
- Electrostatic protection with glim lamps.
- High power protection.
- Stainless screws.
- Quality PTFE SO-239 connector or N or F connector on request.
- IP56 box.
- Size 20x15 cm (feeder).
- Available as
- Assembled : ready to use with SO-239
- Assembled : ready to use with SO-239 to F adapters
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K9AY loops antennas - simply feeder WITHOUT controller |
 
- RX antenna
- Broadband
- 4 directions
- Needs small room
- Great for portable operations
- 50/75 ohm feed line version
- Good for phasing more pieces into the array
- Two versions
- Variable load resistor (also fixed on PCB) - RLOAD
- Fixed load resistor - RLOAD
- Common-mode coax choke iclude.
- Electrostatic protection with glim lamps.
- Controlled by coax feed line (twin line for Rload).
- Stainless connections screws.
- Quality PTFE SO-239 connector.
- IP56 box.
- Size 10x10 cm (feeder).
- Without controller.
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K9AY++ RX antenna system with controller |
 
Low Noise RX antenna
- Broadband
- 4 directions
- Needs small room
- Great for portable operations
- 50/75 ohm feed line version
- Good for phasing more pieces into the array
- PREAMP with variable gain 0 to 18dB
- Three switchable BPFs or BYPASS
- RX protections in feeder and controller
- RX source switch for TX and RX antenna
K9AY++ system includes:
- RF box into the feed point of the ANT loops Picture
- Aluminium holder Picture
- Controller Picture
- DC cable with ferrite tube and two adapters SO-239 to F
- Two adapters SO-239 to F
- Common-mode controller cable choke
- Total parcel weight abt 2 kg
 All parts
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Single wire beverage antenna: classic / BOG |
 
- RX antenna
- Broadband
- Single directional
- Low noise
- Protections- high voltage / current
- Termination resistace selectable in three steps
- 50/75 ohm feed line - easy jumper switch
- Common-mode coax choke included
- Electrostatic protection with glim lamps.
- High power protection.
- Stainless screws.
- Quality PTFE SO-239 connector or N or F connector on request.
- IP56 box.
- Size 10x10 cm (feeder).
- Available as
- KIT : all parts + PCB + box
- Assembled : ready to use
- Assembled + insulators for beverage wire (2 + 11) - picture

- PCB : feeder + terminator
PRICE for more than 3 pieces on request
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2el End-Fire beverage atenna array: Classic / BOG |
 
Main functions:
- Info:
- Broadband: 0.1 MHz to 30 MHz
- In right configuration works 160 to 40m More examples in WiKi
- Gain around + 2.5 dB compare to single wire beverage
- Great F/B compare to single wire beverage
- Can null some direction by PH line
- Very low noise
- 50/75 ohm impedance - easy jumper switch
- Antenna construction with wires in air or BOG
- 2 x single wire beverage + 2-way splitter
- One single wire beverage with 180 deg phase shift
- Electrostatic protection with glim lamps.
- High power protection.
- Stainless screws.
- Quality PTFE SO-239 or F connector, N or BNC on request.
- IP56 box. Recommended to protect it against rain and snow.
- Size 10x10 cm (feeder and 2-way splitter).
- Available as
- KIT : all parts + PCB + box
- Assembled : ready to use
- PCBs
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Bi-directional Two wire Beverage |
 
- Single or two coax outputs.
- Free configurable by your QTH.
- Transformer calculator in wiki.
- Common-mode coax choke iclude.
- Electrostatic protection with glim lamps.
- Controlled by coax feed line or two coax outputs.
- Stainless connections screws.
- Quality PTFE SO-239 connector.
- IP56 box.
- Size 10x10 cm (feeder).
- Question by e-mail
- ASSEMBLED ONLY FOR:
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One coax output - switchable direction Wires in the air or BOG (beverage on ground)
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Two coax version - both directions at the same time *
Wires in the air or BOG (beverage on ground)
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Top band beverages and wire antennas acessories |
 
Other questions
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4-way bi-directional beverage switch |
 
- RX antenna switch for
- 2x Bi-dir beverage
- 4 directions over 1 coax
- Switching by voltage over coax
- 50 or 75 ohm feed line versions
- Common-mode coax choke included
- Electrostatic protection with glim lamps.
- Stainless screws.
- Quality PTFE SO-239 connector or N or F connector on request.
- IP56 box.
- Size 10x10 cm.
- Available as
- KIT : all parts + PCB + box
- Assembled : ready to use
- PCB : feeder + terminator
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4 directions 4-way bi-directional beverage system - ready to use |
 
- RX antenna
- Broadband
- BPFs, preamp, protections, RX way switch and more
- High voltage protections
- 50 or 75 ohm feed line versions
- Common-mode coax chokes included
- This antenna consists of 2 x Bi-dir beverage sets, 4-way antenna switch and controller. That all allows you to have 4 directions beverage system with only one coax line to the controller. Controller could have internal optional PCB with 3 BPFs, preamp and protections. There is also RX ant switch for TRX which does not have input for RX antenna. More in manual.
- Available as
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Complet 4 directional beverage system, assembled and tested
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2-way RX splitter-combiner BOX |
 
- Main:
- Broadband: 0.1 MHz to 60 MHz
- Splitter or Combiner
- Low loss
- Protections- high voltage / current
- 50/75 ohm impedance - easy jumper switch
- Electrostatic protection with glim lamps.
- Stainless screws.
- Quality PTFE SO-239 connector or N or F connector with adapters.
- IP56 box.
- Size 10x10 cm (feeder).
- Available as
- KIT : all parts + PCB + box
- Assembled : ready to use
- Assembled : ready to use, with 3 x SO-239 to F adapters
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2-way small RX splitter-combiner |
 
- Info:
- Broadband: 0.1 MHz to 60 MHz
- Splitter or Combiner
- Low loss
- Protections- high voltage / current
- 50/75 ohm impedance - easy jumper switch
- Electrostatic protection with glim lamps.
- High power protection.
- Quality SMA connectors.
- Available as
- KIT : all parts + PCB
- Assembled : ready to use
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2-way small RX splitter-combiner in enclosure |
 
- Info:
- Broadband: 0.1 MHz to 60 MHz
- Splitter or Combiner
- Bypass IN to RX1
- Low loss
- Protections- high voltage / current
- 50/75 ohm impedance - easy jumper switch
- Electrostatic protection with glim lamps.
- High power protection.
- Quality SMA connectors.
- Available as
- KIT : all parts + PCB
- Assembled : ready to use
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2-way small RX splitter-combiner with bypass |
 
- Info:
- Broadband: 0.1 MHz to 60 MHz
- Splitter or Combiner
- Bypass IN to RX1
- Low loss
- Protections- high voltage / current
- 50/75 ohm impedance - easy jumper switch
- Electrostatic protection with glim lamps.
- High power protection.
- Quality SMA connectors.
- Available as
- KIT : all parts + PCB
- Assembled : ready to use
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RX Triplexer (2L) |
 
- Three Band Pass Filters
- Low loss
- More than -35 dB for the neighboring band
- Stackable - more triplexers for more bands
- Protections
- Works as plitter or combiner
- More single band RX from one antenna Example Example
- More single band antennas to one RX Example Example
- PCB size 100x100 mm
- Available as
- KIT : all parts + PCB
- Assembled : ready to use
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3BPF RX board |
 
- Info:
- For 160m, 80m and 40m
- Low loss
- Ideal option for RX triplexer More with 2L RX triplexer
- Good filtering
- Electrostatic voltage protection with Neon lamps
- SMA connectors
- PCB size 100x100 mm
- Available as
- KIT : all parts + PCB
- Assembled : ready to use
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Common-mode current COAX choke |
 
- CMCC for your RX antennas
- Broadband
- High current insulation
- 50 or 75 ohm versions
- High quality PTFE coax cable
- Low insert loss
- Quality PTFE SO-239 or N connector or F .
- IP56 box.
- Size 10x10 cm.
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Common-mode current choke for COAX and CTRL cables |
 
Main functions:
- Common-Mode Current insulator
- High curren insulation
- Coax impedance 50 or 75 Ohm
- Controller (analog) wires insulator
- Good quality PTFE coax cable
- Low insert loss
- Quality PTFE SO-239 or N connector or F.
Parameters:
- Info:
- Control cable voltage up to 100 V DC / AC
- Maximal current on wire up to 300 mA
- Version K9AY++ 7 wires + GND (schematic)
- Universal version 8 wires + GND only shield (schematic)
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Preamplifier module with 2N5109 |
 
Main functions:
- Info:
- Broadband: 0.1 MHz to 60 MHz
- Very high IP3
- Good gain up to 18 dB
- High output power up to 26 dBm
- Variable ATT for gain 0 to 18dB
- Bypass relays
- You can set transistor bias as you need by trimmer
- High quality relays with TWO contact parallel
- Designed for SMA connectors
- PCB size 50x50 mm
- Available as
- ASSEMBLED and tested
- KIT : all parts + PCB
- PCB only
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RX Preamplifier BOX with 2N5109 |
 
Main functions:
- Info:
- Broadband: 0.1 MHz to 30 MHz
- Very high IP3
- Gain up to 18 dB
- High output power up to 26 dBm
- Variable ATT for gain 0 to 18dB
- Bypass relays
- Front-end diode protections. On/Off by Jumpers
- Power over coax with the Bias Tee BOX - LINK
- You can set transistor bias as you need by trimmer
- High quality relays with TWO contact parallel
- Connectors SO239 or F
- BOX size 100x100 mm
Versions:
- RX preamp box ASSEMBLED and tested
- PACK of RX preamp box and Bias Tee box ASSEMBLED and tested
- KIT of RX preamp box: PCB + box + rest parts with transistor and radiator
- PCB only
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Bias Tee BOX (DC voltage) |
 
Main functions:
- Info:
- Broadband: 0.1 MHz to 60 MHz
- Variable ATTENUATOR pic
- Front-end protection with diodes pic
- DC short protection abt 1A
- High voltage and current protections
- LED diode indication of DC power on the coax
- You can set ATT when you have too high gain of preamp.
- Connectors can be SO-239, F or adapters PL-239 to F for universal use
- BOX size 100x100 mm
- Available as
- ASSEMBLED and tested
- KIT : all parts + PCB
- PCB only
- As pack with RX preamp Box here
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Bias Tee BOX for AC & DC voltage over coax |
 
Main functions:
- Info:
- Broadband: 0.1 MHz to 60 MHz
- Variable ATTENUATOR pic
- Front-end protection with diodes pic
- Power supply common-mode filter
- Power supply short protection
- High voltage and current protections
- LED diode indication of AC/DC power on the coax
- For: preamplifiers, Bi-dir beverages, 4-way antenna switch etc
- You can set ATT when you have too high gain of preamp.
- Connectors can be SO-239, F or adapters PL-239 to F for universal use
- BOX size 100x100 mm
- Available as
- ASSEMBLED and tested
- KIT : all parts + PCB
- PCB only
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Variable high power Attenuator |
 
Other questions
- High power variable ATT
- ATT works in two modes:
- ATT in RX and TX way
- ATT only in TX way - controlled by PTT
- Internal FAN
- TWO FAN speeds + protection
- PTT IN/OUT works in sniffer mode!
- Quality PTFE SO-239 connector or N on request.
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Antenna six to two switch with hazard protection board (FIFO) v3 |
 
more than 3 pieces on request
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Antenna six to two switch with hazard protection board (FIFO) - TRIPLEXER version |
 
more than 3 pieces on request
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Antenna one to two STACK MATCH |
 
more than 3 pieces on request
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Antenna one to three STACK MATCH |
 
more than 3 pieces on request
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Antenna six to one switch v3 |
 
more than 3 pieces on request
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Antenna six to one switch - KIT |
 
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Antenna four to one ultimate QRO switch |
 
more than 3 pieces on request
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Antenna four to one QRO switch - KIT |
 
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BlinkySWR QRP SWR / Power Meter |
 
BlinkySWR QRP SWR / Power Meter A tiny, cheap, simple, accurate, energy harvesting resistive SWR and power meter for SOTA and back packers.
Variants:
- KIT: Partially assembled, builder has to solder SOIC8 AtTiny13A microcontroller & 6 SMD LEDs and flip two electrolytic capacitors
- Fully assembled
SMAs not included!
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Shipping status - In Stock
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Band Decoder MK2 OK1HRA code |
 
wiki
Band decoder MK2 Automaticaly switch eight output, by frequency or band data from your transceiver.
Contains
- PCB board with soldered all SMT parts.
- THT components for assembly in six steps.
- Aluminium box with laser grave printing.
- Configure from open source firmware.
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Manual IP switch KIT OK1HRA code |
For low latency manual switching up to 16 outputs over ethernet. 8 is controlled by buttons, other with rotary encoder. It consists of two parts.
 
IP control - web | wiki
- Control box assembled, tested
- Firmware uploaded
- In local network with DHCP ready for plug and play
- Configure change via telnet CLI
- Included micro USB cable
 
IP relay driver KIT - wiki
KIT contains
- PCB with soldered all SMD parts
- THT connectors
- 3D print parts(DIN rail mount)
- ESP32-GATEWAY ethernet board with uploaded firmware
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Status:
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WEB switch 63 relay for Arduino DM5XX code |
 
web | wiki
Need for assembly
- PCB
- SMD and THT parts
- Mechanical screw
- Arduino MEGA and Ethernet shield
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Status
PCB In Stock
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web | wiki
Large PCB Relay board
- 5 x 30 cm
- 16 realy (one bank)
- Power 12V DC
- Switching 10A/120VAC, 10A/24VDC
- Include LED light
- Two control connector
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Status
Relay PCB In Stock
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Open Interface III |
 
Block diagram 
Included
- Asembled and tested Interface rev 3
- USB cable
- microSD card
- DC power cable
- DB25 female connector
- USR ES1 Ethernet module (optional)
TRX cable (from 40€) on email request
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Status - Sold out
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Outdoor GPS module |
 
wiki
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Status - In Stock
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Single USB rotator interface KIT rev.4 K3NG code |
 
web | wiki
KIT contains
- PCB with soldered all SMD parts
- THT parts
- 3D print parts
- Aluminium enclosure
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Status
In Stock
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HF Band plan |
 
- Actual IARU Region 1 Band Plan from 1 June 2016
- Band 160m - 6m
- + USA class
- + JA 160m CW and 80m RTTY
- Size A3, 297 x 420 mm
- 170g/m2 glossy paper
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Europe Locator VHF UHF QTH map |
 
High quality poster
- All european countries
- QTH grid (Maidenhead) locator system
- Radioamateurs prefixes
- Large cities
- European DXCC table with coutry flag
- Table for signed worked DXCC by band 6m - 4m - 2m - 70cm - 23 cm - UHF
- General meteor shower calendar
- List of all EU functional beacon on 144 MHz and 432 MHz, valid from 1 January 2019
- Publication date 1 January 2019
- Size 59 x 98 cm
- 170g/m2 glossy paper
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Azimuth map |
 
High quality poster
- Azimuth map with a shear in the DL
- Azimuth map with DXCC data valid from 20. March 2019
- German language mutation
- IBP/NCDXF Beacon schedules
- Size B3, 480 x 340 mm
- 170g/m2 glossy paper
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LNB 10 GHz with PLL + TCXO and Bias Tee |
 
- Ku band LNB
- Very low noise
- 1 ppm TCXO built in
- Cheap
- V + H pol
- Supply over one coax
- Voltage supply +12V for V-pol
- Bias Tee board
- V + H pol
- Supply over one coax
- Variable ATT in bias tee
- High voltage / current protection
- Voltage supply +12V for V-pol, +17V for H-pol
- Bias tee connectors: IN (LNB) = F, OUT = SMA and F
- Option: RTL-SDR receiver with 1ppm TCXO
- RTL-SDR USB receiver
- In metal box
- 1 ppm TCXO for better stability
- Input SMA connector
- SMA - SMA cable included (17 cm)
- Firmware already installed
- 8 bit, up to 2 MHz of spectrum
- compatible with: HDSDR, SDR console etc.
- Option: 3D printed POTY adapter
- UV stable material - PETG
- 22 mm tube diameter
- ONLY ADAPTER, not 2.4 GHz antenna!
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LNB 10 GHz with external source for PLL + Bias tee box and much more |
 
- Ku band LNB
- Very low noise converter
- External 25MHz PLL reference signal over IF coax cable
- LO = 9750 MHz: 10489 - 9750 = 739 MHz IF etc
- V + H pol
- Supply over one coax
- Voltage supply +12V for V-pol, +15V for H-pol
- Bias Tee board
- DC supply over one coax together with 25 MHz PLL reference signal
- Build in TCXO with 0,2 ppm as alternative to 10 MHz reference input More in WiKi
- 10 MHz reference input for very big frequency precision and stability
- LO = 9750 MHz: 10489 - 9750 = 739 MHz IF etc
- Variable ATTENUATOR in the bias tee
- High voltage / current protection
- Voltage supply +12V for V-pol, +15V for H-pol
- Bias tee connectors: IN (LNB) = F, OUT = SMA
- Option: 10 MHz PLL-GPSDO reference source
- 10 MHz reference source locked to GPS signal
- RF output typ + 5 dBm
- HW by BG7TBL, modification by OK2ZAW
- Including GPS antenna and DC cable
- Including coax cable with BNC and SMA
- Option: 3D printed adapter for POTY dual band antenna
- UV stable PETG material
- 22 mm Cu tube diameter
- ONLY ADAPTER, not 2.4 GHz antenna!
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