25:1 to 81:1 Baluns/Ununs

These baluns and ununs can be used for impedance matching and also as End Fed halfwave antenna matching transformers to 50 or 75 ohm coax cable.

50:1250 ohm (25:1) CUBE™ Unun, 100 KHz - 4 MHz, VLF, 1000 Watts PEP

CU-25-1000VLFN
$99.95
In stock
1
Product Details
UPC: Does not apply
Brand: Palomar Engineers
MPN: CU-25-1000VLFN
Type: NEW
Input ohms/Output ohms: 50 in / 1250 output
Frequency Range < 2:1 SWR (MHz): 100 KHz - 4 MHz < 2:1 SWR
PEP Power Rating (watts): 1000
Insertion Loss (dB): <.05
Input Connector: Type N
Output Connector(s): Type N
Enclosure Size: 4" x 4" x 2" with side mounting tabs
Weight (pounds): 2

The CU-25-1000VLFN is a 25:1 quad core, Unun housed in a NEMA enclosure box (4″ x 4″ x 2″) with top coax connector output of 1250 ohms used to translate a 50 Ω unbalanced coax input to 1250 Ω unbalanced output at RF power levels up to 1000 watts PEP. With a matched 600 ohm load the SWR over the frequency range 100 KHz to 4 MHz is less than 2:1 (return loss <-10 dB) on the coax input.

Input and output connectors are type "N".

Also includes ground lug/wingnut connected to input and output shield connectors.

Note: Picture shows unun with 9:1 ratio which is shown for illustration of the form factor. Actual 25:1 unun will have the proper label and frequency range and no ground connector..



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