Prices and shipping notes:

All prices at the web page include VAT for EU customers (OSS - VAT of your EU country).
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.
Shipping status - In stock
Shipping price included for World Wide!
please contact me for payment information
Only ANT SWITCH:



Only CONTROLLER:



Complet system: Switch + Controller(s):


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
Shipping status - In stock
Shipping price included for World Wide!
please contact me for payment information
Select:


K9AY simply loops antenna switch - feeder WITHOUT controller

The K9AY is terminated loop. It consists of a wire loop of any convenient shape (diamond, delta, etc), hung from a single support and with a ground rod at the bottom. A 9:1 impedance-matching transformer is connected from one end of the loop to the ground and terminating resistor is connected the other end of the loop to the ground. This antenna is directional. Favoring signals are arriving from the feed point end. There, with the two loops, you can switch between four directions. You can also change the antenna far field by changing the RLOAD (RTERM) of the loop.

Main functions:

  • Lower noise RX antenna
    • Broadband 0,2 MHz to 30 MHz
    • 4 directions by about 110 deg.
    • Needs small room
    • Great for portable operations
    • 50/75 ohm feed line version
    • Good for phasing more pieces into the array

  • ONLY FEEDER! WITHOUT CONTROLLER! This controller could be use.
  • Common-mode coax choke icluded.
  • High voltage electrostatic protection with neon lamps.
  • High power IN/OUT protection with PTC.
  • Controlled by DC voltage (external wires) or AC/DC voltage over the coax feed line.
  • Variable terminator resistance (Rload) also by external DC voltage.
  • Stainless connections screws.
  • Quality PTFE SO-239 connector.
  • Size 10x10 cm (feeder).
Shipping status - In stock
K9AY simply NEW SMD version
HamParts.shop your amateur radio parts!

Shipping price included for World Wide!
please contact me for payment information
K9AY simply older THT versions - SPECIAL LIMITED OFFER
Web page for THT version


Top band beverages and wire antennas acessories


Shipping status - In Stock




Bank transfer
Bias Tee BOX (DC voltage)

Main functions:

  • Info:
    • Broadband: 0.1 MHz to 60 MHz
    • Variable ATTENUATOR pic
    • Front-end protection with diodes pic
    • SMD new version - HPF (100kHz)
    • 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
Shipping status - In stock
Bias-Tee DC NEW SMD version
HamParts.shop your amateur radio parts!

Shipping price included for World Wide!
Older THT version - please contact me for payment information



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
    • SMD new version - HPF (100kHz)
    • 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
Shipping status - In stock
Bias-Tee AC/DC NEW SMD version
HamParts.shop your amateur radio parts!

Shipping price included for World Wide!
Older THT version - please contact me for payment information



4SQ-8DIR antenna system


Shipping status - Out of stock - only PCB now

Shipping price included for World Wide!
Please contact me for payment information

Antenna six to two switch with hazzard protection board - LAST PIECES


more than 3 pieces on request

Shipping status - In stock

Shipping price included for World Wide!
Older THT version - please contact me for payment information

Antenna six to two switch with hazzard protection board - TRIPLEXER version - LAST PIECES


more than 3 pieces on request

Shipping status - In stock

Shipping price included for World Wide!
Older THT version - please contact me for payment information

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!
Shipping status - Sold out


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.

Status: Sold out

Production of the Band decoder has been discontinued, but you can build your own, based on the available source code.
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

Status: Sold out

Production of the Manual IP switch has been discontinued, but you can build your own, based on the available source code.
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

Status - Sold out

Production of the Open Interface III has been discontinued, but you can build your own, based on the available source code.
Outdoor GPS module


wiki
Status - In Stock




Bank transfer
Simple Rotator interface V. OK1HRA code

web | wiki
    KIT contains
  • PCB with soldered all SMD parts
  • THT parts
  • 3D print parts
  • Connectors with terminal block
  • DC power cable for POE
    Optional front panel
  • Intended for internal use on your desk
  • Knob for quick azimuth selection
  • USB-C for controlling with serial communication
  • Direct control of the direction of rotation with a CW paddle
Status In Stock

Select a configuration





Bank transfer

Optional WiFi e-ink display
WiFi e-ink diplay board you can order on
the manufacturer's website (OK Czechia)

Optional WiFi gyroscope controller
Gyrotator controller you can order on
the manufacturer's website (BY China)
APRS WX station (2023) OK1HRA code

Wiki

    KIT contains
  • Complete PCB with firmware
  • All mechanical parts
  • POE module with AC adapter by destination country
  • Basic tools
    Optional external thermistor
  • DS18B20 thermistor with 1m wire
  • All screws

    KIT does NOT CONTAIN 3D printed parts

Status In Stock

Select a configuration





Bank transfer

Optional WiFi e-ink display
WiFi e-ink diplay board you can order on
the manufacturer's website (OK Czechia)
openWSPR OK1RAJ

Web

  • Fully assembled and tested openWSPR Receiver
  • with uSD card
  • with ALPHA version SW
Status In Stock

Select a configuration





Bank transfer
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
Shipping status - In Stock




Bank transfer
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

Shipping status - In Stock




Bank transfer
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
Shipping status - In Stock




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