Wall wart type power supply for Minicircuits ZX60-P103LN+

[APX8000]

Welp....my Strisberg multicoupler decided to just stop working. Sooo, seeing that I have a Minicircuits ZX60-P103LN+ and a ZFSC-4-1-BNC+ splitter, I figured I'd roll my own until I get it repaired. Anyone recommend a good low-noise wall wart type regulated power supply for the 103 ?

 

[prcguy]

Welp....my Strisberg multicoupler decided to just stop working. Sooo, seeing that I have a Minicircuits ZX60-P103LN+ and a ZFSC-4-1-BNC+ splitter, I figured I'd roll my own until I get it repaired. Anyone recommend a good low-noise wall wart type regulated power supply for the 103 ?

Any linear wall wart with sufficient current capability should be fine. I would not use a switcher type and probably 99% of 5V wall warts are switchers these days. A linear type will be larger and heavier with less current rating than a switcher type.

If you have a spectrum analyzer or radio/SDR with spectral display you might be able to tell if a switcher is going to induce noise into the system. For VHF/UHF you could try wrapping one to three turns of the wall wart power cable through a #43 mix or Laird 28 mix snap on or toroid ferrite right at the WW housing. Then terminate the multicoupler input with a 50 ohm load for lowest noise floor then power up and look for noise at all frequency ranges you might use while connecting and disconnecting the wall wart.