Balun MINI LL

Product detailed description

Balun MINI version

New version 2025

- more massive boxes, thicker walls
- brass bushings for lid screws
- Uniform box design for all models
- new performance limits
- wider choice of mechanical designs
- choice of pressure valve design
- choice of Amphenol N connector
- MINI version also available in a clamp mount version
- overall precision design

Balun suitable for the transition from ladder line to coaxial power supply.
For multiband antennas fed by ladder line - e.g. G5RV, Doblet, deltaloop and similar.

Suitable for use with 100 W transceiver.

Specifications:
- 1:1 impedance transformation ratio.
- input impedance 50 Ohms
- power load up to 300 W PEP max (SSB 300 W / CW 150 W / digi 70 W)
- Mechanical design for hanging by rope or screwing
- PL (UHF) input connector
- the wires of the ladder line are connected to M4 screws and secured with a wing nut
- the ladder line is attached to the plastic insulator with plastic tightening straps
- the fasteners are stainless steel
- the box is IP-65 rated
- box size 75x75x45 mm
- weight 0,2 kg

The box can be equipped with a pressure valve at an additional cost.
Function of the pressure valve - if the instrument box is exposed to temperature changes - e.g. the difference between day and night temperatures or if heat is generated in the box during operation and the box cools down after operation - pressure changes and condensation of water vapour occur in the sealed box.
In some cases, a vacuum may even be created, which can cause dust and moisture to enter.
Installing a pressure equalizing valve is a very simple way to provide ventilation while preventing vapor condensation and dust from entering the enclosure.
If you are interested in installing a pressure valve, add the valve offered in the Accessories category to your cart. The extra charge is the price of the valve.

Example of connecting a 450 ohm transmitting double line to the MINI LL balun.

Attach the coaxial cable to the balun so that it does not hang by its own weight on the connector.