Electronics > RF, Microwave, Ham Radio

Use that Cable for VHF, UHF stuff?

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Lord of nothing:
Hi
Sry I dont know much about Antenna Cable but can I use that for VHF, UHF Signal Transmission?
https://www.delock.de/produkte/G_88894/merkmale.html

I have a Splitter who should split the Signal into Multiple SDR for that I need a short Cable to reach the SDR.
THX!

radiolistener:

--- Quote from: Lord of nothing on October 16, 2021, 08:15:19 pm ---Sry I dont know much about Antenna Cable but can I use that for VHF, UHF Signal Transmission?
https://www.delock.de/produkte/G_88894/merkmale.html

--- End quote ---

It can works, but note that thin cables have higher loss. Also note that splitter has insertion loss. 2 port splitter has about 3 dB loss, so if you want to receive weak signals you're needs to avoid using splitter and connect your antenna directly.

Also note that this cable has a hard cover and this often leads to separation from the connector. So if you want to connect and disconnect this cable often, then you're needs spare connectors and crimping tool to replace connectors :)

3isenhorn:
Hello,
Generally you can use the cable, but Delock is quite expensive.
I would recommend getting alternatives, I personally use some cheap cables from China, but you could also use minicircuits if you want known quality, e.g
https://www.minicircuits.com/WebStore/dashboard.html?model=086-10SM%2B


--- Quote from: radiolistener on October 16, 2021, 08:47:02 pm ---It can works, but note that thin cables have higher loss. Also note that splitter has insertion loss. 2 port splitter has about 3 dB loss, so if you want to receive weak signals you're needs to avoid using splitter and connect your antenna directly.

--- End quote ---



Very true, but the cable loss is not so large within VHF/UHF. But you should be careful with the power divider.

Wallace Gasiewicz:
You said "multiple SDR receivers" If you are also using this for transmit, there are plenty of problems. But for receive, why just not use 75 ohm CATV/UHF TV cable. Then buy a a commercially available multiple output  TV amp for these freq? Cheap 75 ohm cable generally has low loss.
It is a lot cheaper.
A splitter will decrease your Rx by a denominator equal to the number of outputs plus an additional loss.
Or just use any decent small coax for running to the receivers from the amp. With short jumpers loss is not a considerable factor.
Works on my OTA TV system quite well.
Even if your receiver is 50 ohm input, it should not matter much at all.
Besides lots of VHF receiver inputs are not exactly 50 ohms either.

Wally KC9INK

Lord of nothing:
 ;D Dont worry I use then only for Reception.
I still got an Splitter used who was build by Mini-Circuits. I dont know which Model exactly its 6/ 8 Port Splitter I dont remember right.
Everything run on SMA so I would just use a SMA Jumper Cable.
I also will use an LNA to Boost the Signal.

--- Quote ---https://www.minicircuits.com/WebStore/dashboard.html?model=086-10SM%2B
--- End quote ---

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Well its a little hight since I must pay Import from non EU (UK...). I pay for the Delock  19,32 €*  + 20% Tax.
* Price change per Day

--- Quote ---I personally use some cheap cables from China
--- End quote ---
Yes me to but are there some Genuine Seller on Aliexpress who offer a good quality?

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