85.91 €
(tax incl.)
This protection limiter box is able to protect your receiver against the high power RF signals and prevent from destruction.
RX Coax Match & limiter with CMCC BOX
This device is impedance matching transformer for 75 to 50 or 50 to 75 Ohm. It's designed for your RX antenna system and offer more than impedance matching.
83.49 €
(tax incl.)
83.49 €
69.00 € (without tax)
69.00 € (without tax)
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This RX Protection limiter with CMCC (common-mode current choke) BOX is able to protect your receiver against the high power RF signals and prevent from destruction. These high RF signals are common in the multi transmitter environment - contest QTH, but also it can limit strong RF peak from the close lightning. Simply, but powerful, high voltage protection limits AC voltage peaks to 65 V. Transformators work as isolation and Common-mode current as filter.
The SuperFuse protects against high current in the RX line and disconnect the circuit. This SuperFuse is big advantage compare to the best products on the market. Thanks to the circuit construction there is minimal problem with IMD. Limiter works for the signals higher than 20 mW. This device do not degrade the dynamic range of the receiver. The signal which is limited by this protection is usually higher than the value which is in the dynamic range of most receivers on the market.
Using & Where to put this box
- In ham shack: 75 Ohm coax from antenna - 50 Ohm to RX
- 50 Ohm ANT - this box - 75 Ohm coax - this box - 50 Ohm RX
- RF power limited to 13 or 17 dBm
Main functions
- Coax impedance matching 75 to 50 or 50 to 75 Ohm
- Low insertion loss
- Diode RF limiter for signals higher than 10 dBm (10 mW) - 13 dBm hard limit
- SuperFuse protects circuit against current higher than 100 mA
- Neon lamps light up with AC voltage higher than 65
- Common-mode current insulator
- High RF isolation
- Input to Output coax ground isolation
- High quality connectors
- IP56 box - recommended to protect it against rain and snow
- Feeder size 100x100 mm
- ASSEMBLED and TESTED VERSION
Parameters
- Impedance matching 75 to 50 or 50 to 75 depends on connection
- RF limiter output +13 dBm (could be se to +17 dBm by jumper)
- SuperFuse break circuit when current is higher than 100 mA
- Neon lamps protect while > 65 V AC
- Low insertion loss
- Galvanic isolation IN to OUT
- Common-mode isolation > 40 dB @ 160m, > 30 dB @ 40m, > 18 dB @ 10m
Available as
ASSEMBLED BOX: ready to use
Connectors: PL SO-239 and F
Included in package
Coax match assembled and tested
Manual
If you want to know more please check our wiki with RX Coax Match & limiter manual.
one version with F and PL SO-239 connectors
limiter OFF
limiter 13 dBm
limiter 17 dBm
common-mode isolation
Data sheet
- type
- ASSEMBLED
- design
- in enclosure
- usage
- RX
- impedance
- both 50 & 75 Ohm
- front-end protection
- input and output
- frequency range
- 0.1 MHz to 30 MHz
- product dimensions
- 100x100x50 mm - PU box IP56
- product weight (brutto)
- 0.30 kg
- package dimensions
- 18.5x14x10.5 cm
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47.19 €
(tax incl.)
This protection limiter module is able to protect your receiver against the high power RF signals and prevent from destruction.
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