Customer voices

Every device purchased from us is part of a project. We accompany our customers during the implementation. About 95% of the installations are done by the customers themselves. The feedback proves us right in our approach. And we are happy about the success achieved.

Christopher Battenhausen – Networking via telephone and coaxial cables

In our house from the nineties there are neither network cables nor empty conduits and so we, like probably many homeowners, were faced with the question of how to bring stable Internet access to the PC workstations and supply the WLAN access points. We could forget about repeaters: reinforced concrete ceilings and thick walls. We used Powerline for years, but it can’t provide gigabits for the new fibre-optic connection that is to be installed soon. Besides, it ran unstably for years.

In the house, there is a classic star-shaped satellite installation with a multi-switch in the attic. With two Gigacopper G4204C satellite modems, one in the living room and one in the study, we have connected it to the network. The signal travels from the satellite box in the living room to the satellite box in the study via a feed switch, which is connected behind the subscriber outputs of the multi-switch. The connection is rock-solid with 1.4 Gbit/s and does not impair the satellite reception in any way. So I am satisfied 😉
Now the network link from the router, which is in the other study, to the living room had to be established. The second study has no satellite socket and there is no other cable between the rooms.

So we laid a cable: Two thin twisted copper wires. The strands are so thin that I could easily slide them under the skirting boards and under the door frame or hide them behind them. You could even hide such a thin stranded wire under wallpaper! The cable is about 18 m long, and I even had to solder two sections together in the middle, because it was not possible to lay it all in one. A Gigacopper G4201TM modem was connected to each end. The connection ran immediately at 1.6 Gbit/s. Really impressive with such a “lousy” line.
And what’s more, the system is also expandable, i.e. more rooms with satellite sockets can simply be added. And when the VDSL2 is replaced by fibre, we can simply connect the fibre router in the basement to the rest of the network via the telephone cables that will no longer be needed. Big kudos to the team at Gigacopper.
My questions about the frequency ranges, the feed crossover and compatibility with VDSL2 were answered promptly and comprehensively by Mr Gipke. The ordered devices were shipped immediately and arrived quickly. that’s how customer service works! 🙂 would never have thought that possible.

Dietmar S. (Stahnsdorf) – Networking via telephone cables

First of all, I don’t like to write reviews, so I rarely do.
But many people probably feel the same way I do. House built about 25 years ago without network cables. 3 floors plus basement, all connections TV, telephone, internet arrive in the basement. Reinforced concrete ceilings in between, ergo no Wlan or Lan. At that time there was practically no internet and I didn’t even have a PC.
Who would have thought back then that nothing would work without the internet. But there was a telephone and TV socket on every floor. So over the years, after DSL Light, the “quantum leap” to Vodafone Kabe (500 Mbit/s). The whole thing started with Powerline with 200 Mbit/s and up to today 1200 Mbit/s devices and additionally 3000 Wlan Repeater (as Lan bridge) everything from AVM. Unfortunately, despite “upgrading”, only between 50 and 80 Mbit/s arrived, and on bad days only 30 Mbit/s.
In times of home office, home schooling and home studying, this is completely unacceptable. In a few months we will have fibre with over 1000 Mbit/s, but what’s the use.
By a happy coincidence, I became aware of Gigabit Ethernet over coax cable or Gigabit Ethernet over telephone cable and the company Giga Copper. The promises of fast internet were too good to be true. Unfortunately, I am almost illiterate in terms of craftsmanship and technology, so I was quite sceptical about the whole thing. But what can I say, all the customer reviews are right! The customer service is outstanding, every time you call (without waiting time) you have a competent expert on the line who can advise you or help you further. Emails are answered at short notice. I haven’t experienced that for many years.
So I ordered 2 G4202T (InHome configured). If I didn’t have two left hands, another phone call would have been superfluous, but I had plugged the cables in incorrectly. Then plug and play, internet connection over 2 floors 99% of the speed that arrives in the basement. Wifi at over 90%! I would never have thought that possible.
An extraordinary product from an extraordinary company – an unconditional recommendation for anyone in the same situation as me.

Alexander C. (Neckarbischofsheim) – Preparation for fibre optic expansion in the region.

As a preparatory measure for the fibre optic expansion in the greater Neckarbischofsheim area, an interested party carried out a test with our hardware.

Here is the article: Glasfaserinfo Neckarbischofsheim

Many thanks for this from our side(GCN).

Jan R. (Hammoor) Networking between 2 buildings. Forwarding of a fibre optic connection (600/300 Mbit/s) via telephone cable.

Good morning,
I had read the reviews on Amazon, but I still didn’t think it would work sooo well! Thank you very much, everything problem-free!
Great product and great service!!!

Dr. Thomas S. (Aachen) Networking within the house and between 2 buildings

Perfect network connection via KOAX cable.
When we renovated our listed house a good 25 years ago, we installed a well-equipped KOAX and telephone star network, but did not consider LAN. In addition to a KOAX cable for the later (never implemented) cascaded SAT connection, we laid a “replacement” KOAX, Tel and NYM 5×2.5 cable for later use as an underground cable to the similarly equipped outbuilding about 50 m away as an island solution. Now a PV system installed on the roof of the outbuilding required a LAN connection to the main building. I remembered the unused NYM cable and installed dLan. Despite high-quality DINrail equipment, I only achieved rates of 50 / 20 MHz with an inconstant connection. Asked Google for alternatives -> found GIGACopper.
Of course I was not very optimistic about KOAX / Tel data transmission. But it was worth a try, especially as the costs were manageable.

I trusted the physically “thick” KOAX cable the most, the Tel cable rather less. Two KOAX adapters G4204C, configured as master and client, arrived super-fast when I ordered them from GIGA’s HP. Self-explanatory, the connection was made in a few minutes and I immediately had a data rate of approx. 1500/1500 MHZ in the neighbouring building via my “reserve” ground KOAX cable. I did not want to believe it at first. I then disconnected the dLan slave in the neighbouring building (Wlan adapter 1200+) from its weak DINrail and connected it via Lan to the GIGA client and – lo and behold – I can continue to use the adapter as a WlanPoint as before (the product does offer some advantages such as guest network and 2.4 / 5.0 supply), but now with a full data rate.
But people want more! So, after extensive consultation with the managing director of GIGA, Mr. Gipke, I connected the KOAX cable from the GIGA Master to my EMP Centauri SAT Multiswitch ProfiLine 5/16 to a (freely selectable) OUTPUT and also connected my “replacement” ground KOAX cable to a (freely selectable) OUTPUT of the MS. I now have a data rate of approx. 1500 / 1300 MHz at all F-terminal sockets of the star network incl. my “replacement” KOAX cable in the adjacent building. The SAT TV reception / switch distribution is not affected in any way. Amazing!
I am convinced that a solution via Tel cable would also succeed. From my side -> clear purchase recommendation!

Peter L. (Heraklion) Networking in the house via coax cable

Just coming back to inform you that everything is working flawlessly! Your device actually saved me a ton of cabling money! 😀 Previous PoE speed was 6mbps out of my max 50mbps! Once again, thank you very much!

Jürgen Barth (Kraichtal): Distribution 1Gbit Internet in the house via coaxial cable

I recently purchased and installed your equipment.

I was (and still am!) so excited that I posted a video on YouTube describing my journey from dlan to your products. Link here:

If you like the video, feel free to share the link.

Many greetings from a happy customer,

Darren T. (Zorneding): Hnetworking via coaxial cable

All setup, works perfectly. It’s so fast it shows some issues in my network setup that I need to look into. Installing cat6/7 throughout the house would have been crazy (should have been installed when the house was built) but using the coax they put in for satellite instead is alot cheaper and arguably faster.
The full incoming internet provider bandwidth is available throughout the building now, my kids and wife are happy and we are setup for the on-demand streaming world expected by the kids.
You have a really nice product here!

Felix Fechner (Tübingen): Connection of outbuildings via telephone cable (Google Rezension)

I wanted to connect an outbuilding to the existing internet connection.
I failed with WiFi and Powerline because of the distance. It didn’t even work to establish a connection.
But: Both buildings have an old telephone system. I now use it to transmit the data via

To do this, I simply feed the signal into the telephone system in the main building, I connected both networks in the basement and I already have internet in the outbuilding. So it wasn’t even necessary to lay any cables. At first I was quite sceptical because the telephone systems in both buildings are widely branched and certainly anything but interference-free. The distance itself is not without problems and the cables are not twisted (no twisted pair). But the system does not seem to have the slightest problem with this. I currently use only two cables (1 wire pair) and actually have the full bandwidth of 1.5 Gbit/s (sum of upload and download). You have to let that roll off your tongue! This is actually quite a bit of overkill for any normal application. I couldn’t have wished for better support from GIGA Copper. Extremely friendly and just as fast and competent. I even got detailed answers to difficult technical background questions about encryption.

I have been using the system for almost three months now and can only warmly recommend it to anyone who wants to extend their home network over long distances.

Engelbert B. (Limburg): Networking between 2 buildings via telephone cable (simple “electrician” cable), 200m (Google Rezension)

We have an old 2 or 4-wire telephone line that connects two infrastructures over a cable length of almost 200m. In the last few years, a master/slave modem from a well-known network supplier based on VDSL2 was used for this connection, but instead of 100Mbit/s it only delivered 15Mbit/s and this only with interruptions and small data throughputs.

It was only by chance that we became aware of the company from Düsseldorf. At first we were sceptical because of the above-mentioned points, but right away the company was there to help us in word and deed – for this, great praise. With the two devices we purchased and the detailed explanations and ideas, we were able to eliminate faults and ultimately improve the line considerably. What can we say: a performance increase of 2800% (to approx. 435Mbit/s in both directions) and the whole thing without any disconnections.

Should you have an old telephone line and want to use it as network infrastructure (colloquially network cable), stop searching and forget what you may have already seen on the internet – you are more than right here! We can recommend the company Giga Cooper Networks from Düsseldorf without any reservations.

Christian C. (Nürnberg): Networking via telephone cable between 2 flats (3rd and 4th floor) in the apartment building via the cellar

The package arrived today. Unpacked, plugged in and so far running like a charm. Great thing. Connection is up and running at 1855/1855 Mbps.

Klaus W. (Elsdorf): Networking in the house via telephone cable

If everything were so simple: I discussed the task with Mr Goldberg on Thursday and was able to install the two devices without any problems on Saturday. Today’s acid test in my home office confirms the efficiency with a 1a performance.

Thank you very much for the very good technical advice and your extremely fast and completely problem-free handling.

I will gladly recommend you to others.

Jörg H. (Düsseldorf): Internet distribution in the house via telephone cable

Thank you very much for the great support. The modems were really the solution to our problem.

Using Powerline, the connection between the main house and the back house was a shaky 40 – 50 Mbps. Measured with iperf3. With the modems, the value is currently around 400 MBit. The igmp EntertainTV stream runs stably without any further settings.

Andreas C. (Salzgitter): Networking in the house via telephone cable

I would like to share positive results here once again.

I was sceptical all along, but the product works and I am thrilled.

House connection: Vodafone 200MBit DL / 25MBit UL Before from the attic down to the basement via Zyxel Powerline Adapter, measured max. 66 Mbit DL.

With the installed GiGa Copper modem, measured 200Mbit DL. Top alternative if only one telephone cable is available. Many thanks

Tom Alby (Hamburg): Distribution 1Gbit Internet in the house via telephone cableür-ethernet-nutzen/

Nico N.(Riederau): Networking between two buildings, 100m

I have just commissioned the line to my father’s house. 1581/1470 on an estimated 100m line with two strands and 5 sleeves in between – adventurous:

I use a bell wire that was laid to our outdoor unit from the heat pump and had strands left over, go from there via an underground cable through a ditch, across the property, into my father’s outdoor heat pump unit, from there into his heating system and from there to the network distributor.

Technology that inspires!

Lars U. (Gößnitz): Distribution of fibre optics in a 3-party house from the basement to the 2nd floor

Yesterday I finally got around to trying it out and was very happy that everything worked without any problems during my short test. The maximum data rate of 1.5Gbit/s is achieved.

Jürgen B. (Buchholz): Connection between residential house and stable via 60m underground cable, 2 access points and 3 IP cameras

So I did find your advice “sketchy”.

Otherwise you would have told me to bet in any case. Electrician with network knowledge and installer with electrical knowledge both swore that it wouldn’t work with your boxes. Original comment: Why didn’t you run a network cable up to the house (dig 60m!)?

And I didn’t bet!!! In the first and second stables we have a download >600 Mbit/s! Just awesome!

Thanks a lot for the advice!

Tobias K. (Münsingen): Networking in the house via telephone cable

As already discussed with your colleague today, once again my very positive feedback – the devices helped me a lot and saved a lot of manual work!

Jens Fischer (Glinde): Networking in the house via telephone cable, conversion from Powerline to (Google Rezension)

I just wanted to give you the feedback that I am completely thrilled with the GigaCopper modems! The set-up was child’s play (even though I couldn’t restrain my curiosity and connected directly to the management interface of the devices ;-). After a few minutes of cabling, I literally got the green light on the line port. My bandwidth measurement was then also impeccable: I was able to achieve a whopping 780Mbps in both directions constantly over a 2 minute measurement period with iperf. This made my Powerline jealous, as it had been dawdling along at around 35-50Mbps.

The first day of HomeOffice including HomeSchooling also produced a very good picture with several parallel video conferences, and I was also able to enjoy HD video streaming in the living room via yesterday as a test.

I am far from wanting to send the modems back. Rather, I am now squinting at the next two modems to bring my two ring wire lines into the next decade. However, that doesn’t fit into the monthly budget anymore, so I’ll have to let some suffering build up in the family for now. The new 4K UHD TV is coming next week, and if Disney+ only jerks or looks pixelated then I’ll be forced to dig into my pocket again for the next two modems 😊

Top eBayer, happy to do it again! Oh no, it wasn’t via eBay. I will definitely recommend GigaCopper and plan to publish a short blog post about my positive experience.

Detlef Bühler (Frankfurt am Main): Networking in the house via telephone cable (Google Rezension)

After struggling with other solutions for so long, I couldn’t believe that the solution was so simple.
I had the time and was able to install it as soon as it came (it wasn’t difficult) and I now have a fantastically fast connection available when I would have been happy with a safe, simple speed. So of course I’m happy 🙂
I’m beginning to believe that my struggle for connection is over, because so far there have been no failures. In short, I’m very happy with the solution and I’m surprised that it doesn’t seem to be very widespread, at least that’s how it seemed to me. I have also rated it – positively, of course.

Danny H. (München): Networking in the house via telephone cable

I am happy to report success. For the first time in the years we’ve been living here, I’m watching TV upstairs. It’s fantastic! Almost unbelievable! It’s a dream come true. I can’t tear myself away from the television.

I’m now putting everything back together again so that I can set everything up neatly at the weekend.

Thank you very much for your help! It was and is sensational!

I am already looking forward to implementing more projects with you in the coming year.

Thank you from the bottom of my heart.

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