# Opticum SUMATOR RTV/SAT IN coaxial signal combiner for terrestrial TV and satellite IN (model 18928)

**URL:** https://aio.lv/en/product--opticum-18928--11807083
**Data updated:** 2026-03-09 07:57 (EET)
**Category:** SAT Antennas & Dishes
**Manufacturer:** opticum
**Manufacturer code:** 18928
**EAN:** 5903175950246
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 5.49 €
**Prices and availability valid until:** 2026-07-08 23:59
**Price without VAT (21%):** 4.54 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--opticum-18928--11807083

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 30.06.2026 | free |
| Pickup points | 03.07.2026 | 1.99 EUR |
| Courier delivery to door | 03.07.2026 | 4.99 EUR |

## Summary description

Opticum SUMATOR RTV/SAT IN is a coaxial signal combiner designed to merge terrestrial TV (RTV) and satellite (SAT) signals into a single IN line. It enables connection of both antenna and satellite feeds to equipment with one coaxial input, simplifying installation in homes or small installations. Suitable for use with set-top boxes, TVs and receivers where combined signal input is required.

## Long description

Opticum SUMATOR RTV/SAT IN coaxial signal combiner for terrestrial TV and satellite IN (model 18928) is a passive device that merges terrestrial (RTV) and satellite (SAT) coaxial signals into a single input line. It allows connection of an antenna and a satellite feed to equipment with one coaxial IN, simplifying installations in apartments, homes and small-scale setups where a combined feed is required for set-top boxes, televisions or receivers.
Advantages
The combiner provides a compact and passive solution to combine two RF sources without the need for external power. Its straightforward coaxial connectors reduce cable clutter and installation complexity. As a passive device, it maintains signal paths for both terrestrial and satellite sources while minimizing additional components in the signal chain. The unit is compatible with standard coaxial cables and fittings used for RTV and SAT systems.
Suitable for
Homes and apartments where a single coaxial input is available
Set-top boxes and TVs that accept a combined antenna/satellite feed
Small installations requiring a compact, passive combiner
Temporary installations or testing setups for RTV and SAT equipment
Key specifications
Function: Passive coaxial combiner for merging terrestrial and satellite signals into one output
Connectors: Standard male/female coaxial connectors compatible with RTV and SAT cabling
Frequency coverage: Designed for use across typical terrestrial TV and satellite frequency ranges
Power: Passive device, does not require external power supply
Construction: Compact housing suitable for indoor mounting and simple integration into existing cabling
How to use
Connect the terrestrial antenna coaxial cable to the RTV input and the satellite dish coaxial cable to the SAT input. Then connect the combiner output to the single coaxial IN on the set-top box, TV or receiver. Ensure connectors are tightened securely to maintain signal integrity and avoid loose fittings. As the device is passive, no power connection is needed. If signal levels are low, consider using amplification or checking cable quality upstream of the combiner.
Usage recommendations
Use short, high-quality coaxial cables and properly shielded connectors to preserve signal quality. Avoid placing the combiner outdoors or in damp environments; install it indoors or in a dry enclosure. When combining signals for devices that require powered satellite LNB control (13/18 V, 22 kHz), verify compatibility of the receiver and any inline amplifiers to ensure correct power and control signals are delivered to the satellite dish.

## FAQ

### How much does the Opticum SUMATOR RTV/SAT IN combiner 18928 cost, and is it available for purchase?

The price is 5.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 3 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 30.06.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All opticum products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized opticum service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/11807083/67208433_large.webp