CCMC50 Coaxial Common Mode Choke
€69.00*
% €76.94* (10.32% saved)
Available, delivery time: 2-5 days
Product number:
0372
Product information "CCMC50 Coaxial Common Mode Choke"
CCMC50 Common Mode Noise Filter
Noise filters are nothing new and are often used for transmitting purposes. They are used to prevent unwanted radiation via the coax shielding. It is less known that they can also suppress unwanted radiation when receiving signals, especially when an active antenna is used. However, in this case, the situation is reversed: en route to the antenna, unwanted interferences from electric home appliances can be effectively eliminated.
This Coaxial Common Mode Choke (CCMC50) has been especially optimized for maximum common mode noise rejection of >30dB wide band in the frequency range of 500kHz – 50MHz. With slight limitations a much wider frequency range is covered. This is possible by using a cascaded system of ferrite cores with various frequency dependent material properties, combined with high quality PTFE coaxial cable. We recommend to connect the CCMC50 as closely as possible to the receiver.
For the highest demands we still offer the proven Common Mode Noise Filter CCMC30, which is specially optimized for maximum Common mode noise rejection of guaranteed> 30dB broadband in the reception range from 150kHz - 30MHz.
With the CCMC50 a reasonably priced version is now available with the following minor limitations against the CCMC30:
Common mode noise rejection guaranteed> 30dB, broadband in the reception range from 500kHz - 50MHz instead of starting at 150kHz. Starting with the medium wave over short wave up to the 6m amateur radio band, which should be sufficient for most applications.
Not suitable for outdoor use because it is not splashproof.
With regard to efficient noise suppression, the CCMC50 is not very much different from the galvanic isolator GI1000. However, the CCMC50 performes down to lowest frequencies including DC voltage, in contrast to the GI1000, which blocks DC voltages and very low frequencies. The CCMC50 can thus be connected directly to the coax cable which passes the supply voltage or the control signals to the active antenna. A series connection of the GI1000 directly connected to the receiver followed by the CCMC50 right behind the power inserter may result in an even better performance.
Technical Data
- Optimal frequency range: 500 kHz – 50 MHz
- Common Mode Wave suppression: >30 dB: 500 kHz -50MHz (>20 dB: 100kHz-70MHz)
- Insertion loss: <1 dB max. 500MHz, < 1.5dB bis max 1.5GHz
- Size: 127x65x43mm (160mm with BNC connectors)
- Connectors: 2x BNC 50Ohm
- Weight: 160g
- Made in Germany
Absolutely not for transmitting purposes!
Skip product gallery
Accessory Items
Mini adapter cable
From
€12.50*
Mini adapter cable
Very short, flexible adapter cable made of Hyperflex 5 for short connections in top quality.
The mini adapter cable is the ideal solution if you either want to connect two devices of different sizes or need a short, flexible coax connection.
If you want to connect small SDRs like the Airspy HF+ with accessories like the GI300/or GI1000, there is often a problem: the BNC adapter and the GI300 or GI1000 are much bigger than the HF+ SDR receiver. Now you could use a regular adapter cable, but since the GI300/1000 separates the ground from the line, the cable must be as short as possible, but still flexible enough to bridge the height difference. Also, it is often not a good idea to plug the GI 1000 directly into a device, as the weight could damage the socket.
This mini adapter cable consists of a short piece of Hyperflex 5, about 10-14cm long and SMA or BNC connectors. The result is impressive and works very well.
Skip product gallery
Similar Items
CCMC30 Common Mode Noise Filter
€99.99*
CCMC30 Common Mode Noise Filter
Noise filters are nothing new and are often used for transmitting purposes. They are used to prevent unwanted radiation via the coax shielding. It is less known that they can also suppress unwanted radiation when receiving signals, especially when an active antenna is used. However, in this case, the situation is reversed: en route to the antenna, unwanted interferences from electric home appliances can be effectively eliminated.
NTi's Coaxial Common Mode Noise Filter (CCMC30) has been especially optimized for maximum common mode noise rejection of >30dB wide band in the frequency range of 150kHz - 30MHz. With slight limitations a much wider frequency range is covered. In the medium wave range for example a noise suppression of up to 45 dB can be achieved.
This is possible by using a cascaded system of ferrite cores with various frequency dependent material properties, combined with high quality coaxial cable. For outdoor use, the system is housed in a water-proof enclosure. We recommend to connect the CCMC30 as closely as possible to the receiver.With regard to efficient noise suppression, the CCMC 30 is not very much different from the galvanic isolator GI1000. However, the CCMC30 performes down to lowest frequencies including DC voltage, in contrast to the GI1000, which blocks DC voltages and very low frequencies.
The CCMC30 can thus be connected directly to the coax cable which passes the supply voltage or the control signals to the active antenna. A series connection of the GI1000 directly connected to the receiver followed by the CCMC30 right behind the power inserter may result in an even better performance.
Technical Data
Guaranteed frequency range: 150 kHz – 30 MHz
Common Mode Wave suppression: >30 dB: 150 kHz -30MHz (>20 dB: 30kHz-60MHz)
Insertion loss: <1 dB (up to max. 150 MHz)
Size: 100x68x50mm (132mm with BNC connectors)
Connectors: 2x BNC 50Ohms
Weight: 320g
Made in Germany