2-Way External Masthead Splitter/Combiner, Triple Filtered
Product Code: BLAMHS12P
- Can be used to combine signals
- Boosted signal through the output
- F-Type
- 1 input 2 outputs
- Suitable for outdoor use
Product Description
2-Way External Masthead Splitter/Combiner Screened with Power Pass; 1 Input; 2 Output
Screened wideband units intended for splitting digital aerial feeds in strong signal conditions where the use of distribution amplifiers or active splitters is unnecessary. These products can also be used as general-purpose signal splitters or combiners.
Triple filtered: 5G, 4G, & TETRA
Features:
- 4-way and 8-way models also available.
- Low insertion loss with excellent 75Ω impedance matching and high isolation between outputs.
- Fully screened RF modules in robust diecast enclosures. Strong cast-in 'F' connectors.
- Proven free-draining moulded enclosures give easy access and cannot trap water.
- Directional power pass (20V and 250mA max.) from any output leg to the common input, allowing an upstream amplifier to be powered.
- With equipotential bonding point/earthing tag.
- Suitable for indoor or outdoor use.
Technical Information:
| Product | Ways | Frequency Range (MHz) | Insertion Loss VHF1 (dB) | Insertion Loss UHF2 (dB) | Output Isolation (dB) | Power Pass3 |
PROMHS12P Mk 2 | 2 | 47-862 | <3.5 | <4.2 | >22 | Yes |
1 47-230MHz. 2 230-862MHz. 3 Directional (diode-steered) power pass from any output(s) to common input. Typical voltage drop 0.8V. Power is isolated from reaching any un-powered output legs. For use in DC negative earth systems only.
Technical Specification
IEC or F Type
F-Type
Number of Outputs
2
Number of Inputs
1
Internal or External
External
Width
50mm
Depth
112mm
Height
109mm
Weight
0.18kg
11/07/2026
11/07/2026
prompt service and very helpful on line aerial selection by inputting post code Prices seemed reasonable
19/06/2026
Slow communication, website said delivery in few days but item was out of stock and this was not communicated until I emailed after a week of nothing.
08/06/2026
Communication with staff was fantastic, product quality was outstanding, price was good, and delivery was excellent. I will recommend it to anyone.
02/06/2026
Another fantastic experience. Easy to order, excellent quality & exceptionally fast delivery.
Google Company Reviews
10/07/2026
very pleased with the aerial purchased @ tool station . However the so called f type plug useless and not as pictured .
03/06/2026
Friendly staff sorted out my payment problem.
31/05/2026
I bought a 4-way distribution amplifier to replace an old one made by another company. Ordering and delivery went as planned. The amplifier is a solid piece of kit, built to last. Easy to fit. Works well. Nice one !
22/05/2026
Ordered a part that i couldnt find anywhere else, it arrived on time and was exactly what i needed. Cheers blake 👍🏽👍🏽👍🏽
22/05/2026
Can’t fault it. Great service from a family-run business. Will definitely buy again.

Many thsnks