The splitter or combiner is a very useful device. It can provide equal voltages, equal current, or equal power to matched or unmatched loads. Like all passive splitters and combiners, this device is less than ideal. Isolation is maximum only when at least one port are properly terminated. In this case isolation between the two splitted/combinated ports is maximum when the main port is properly terminated. This HW is designed only for RX line. There are some more high current and voltage protections on all ports. Both impedances 50 or 75 Ohm can be selected by the jumper.
Main functions:
- 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 10×10 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
Parameters:
- Info:
- Impedance 50 or 75 Ohm
- Insert loss: around 0,5 dB
- Split 3 dB, together with IL around 3,5 dB
- Isolation more than 30 dB, 160-40 m more than 40 dB
- SWR on splitted ports better than 1:1,1 on HF, resp. 1:1,19 on 6 m
- SWR on main port around 1:1,2 on HF, resp. 1:1,3 on 6 m
- Maximal current continue 100 mA
- Maximal voltage around 65 V
Use:
- Antennas splitter
- RX signal divider
- One antenna, two RX
Versions:
- KIT or assembled
- Connectors: SO-239, N or with adapters also F
Review
How Antenna Traps Work
How Antenna Traps Work Read more
Make a mains filter for EMC & noise reduction
This video shows how I have made a mains filter that is extremely effective in reducing and in some cases eliminating completely EMC from the electric... Read more
Survey of Less-Expensive Vertical Antennas
Oggie Mike, KB7HFS, asks for a recommendation for a new vertical antenna. He already has a radial field and a mount; his prior antenna was destroyed i... Read more
Learning Morse Code, Straight Key or Paddles?
“The eternal question and a sure way to start trouble at your next Ham radio club! Is the straight key a better learning tool or will the modern... Read more
Antenna
Testing My Mini 64:1 Half-Wave End-Fed Antenna Transformer.
Testing My Mini 64:1 Half-Wave End-Fed Antenna Transformer. Read more
100 ft Tilting Tower
Raising a 100 ft tower with a winch on a 35 ft pole. Read more
I Found & Eliminated My QRM / RFI (Radio Frequency Interference)!
This is the third in a series of videos following my efforts to track down a source of local QRM / Radio Interference. Following the build of a succes... Read more
HF Antennas for Beginners: Tuesdays with Tim and Jeff
“We are bringing in 2021 with Tuesdays with Tim, K3LR and Jeff,KB8ZWT discussing HF antennas. Did you recently upgrade from tech to general? Tha... Read more
News
Ham Radio’s SuitSat Returns in Short Horror Film
SuitSat loses its innocence in a new video short sci-fi thriller Decommissioned. “Inspired by true events,” the video short resurrects the 2006 spaces... Read more
Capture the MAGIC of Six Meters — eBook
Have you ever wondered about the “Magic” of Six Meters? After all, you’ve probably pressed the six meter button on your rig and failed to find any mag... Read more
Eastern Iowans Rely On Ham Radio When Severe Weather Strikes
A derecho with winds of 80 to 100 MPH struck eastern Iowa last August, disrupting power and telecommunications for some 400,000 residents. But, as... Read more
David A. Duncan, K7DUN, Wins the January 2021 QST Cover Plaque Award
The winning article for the January 2021 QST Cover Plaque award is “CW-ELMER – An Advanced Morse Code Learning System,” by David A... Read more