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M1CBK England flag England

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Hello and welcome to my information page on QRZ.  If you are here after having a QSO with me then thank you for looking, or if you are Short Wave Listener then all reports are welcome and eQSL's returned.


I am very Happily married to my wife Dawn 2E0WTZ, and we live together in Slade Green, North Kent.


We are QRV on (80m - 70 cm) from our Home Shack.


Simple and convenient Transceiver selection is achieved by using two W2IHY Iplus switches with two W2IHY 3x4 Switch Plus units, along with two W2IHY 1x4 Remote Coax Switches. An external remote mounted Ameritron RCS-8VX five port Antenna switch is used for final Antenna selection, connected through an Alpha Delta Lightning protection system on each port mounted to a common grounded buss bar.  The single main Coax feeder for HF + 6m is fed through a grounded line isolator located externally to prevent any RFI problems. The floor located Shack has no direct Ground connection due to the length required.  All Antenna feeders are grounded externally after the Line Isolator and this configuration allows High Power QRO operation with no RFI problems in the Shack. RF Outputs from the operating desk are via a bulkhead connector which enables full isolation by disconnection when not in use and then the disconnected feeders are simply terminated to a separate short circuit bulk head to protect the station from lightning damage in the event of a storm.


Two ATU units are selectable, either a manual tune Palstar AT2K or the Palstar HF Auto both capable of 160m - 6m operation.  One of the stations W2IHY 3x4 Switch Plus units makes available to the output of the HF/6M amplifier driven by any one of 5 selectable Transceivers either the AT2K / HF Auto / Comet 54Mhz Low Pass Filter / Bypass directly to antennas.

Station Components

Yaesu FTdX5000MP with SM-5000 + RF Space SDR IQ running HDSDR V2.76 as Panadapter

Icom IC-7100

Kenwood TS-590SG

Flex Radio Systems Flex 3000 (Power SDR 2.72) Also Power SDR by KE9NS

Flex Radio Systems Flex 6300 Signature Series (Smart SDR) Version 2.0.19

Amplifier Alpin 100 1.3Kw (GU74) Valve


Icom 7100 - Dstar operation TX/RX with a 15W VHF/UHF Dummy Load with a dedicated RF Shark

Yaesu FTM-100DR - C4FM operation TX/RX with a 15W VHF/UHF Dummy Load with a dedicated RF Shark 

Hytera MD-785GPS UHF - DMR operation TX/RX with a 15W VHF/UHF Dummy Load with a dedicated RF Shark

Yaesu FTM-400XDR Local FM/C4FM Use

DV Tools DV Dongle Dstar operation (Reflectors)


AOR AR-DV1 Digital Voice Receiver / Used as a Station monitor and to scan the RF Shark Hotspots.

SDR RSP2 1Khz - 2GHz Receiver for General Listening around the Bands


LP100A Digital Vector RF Watt Meter

Plastar AT2K 2Kw Manual ATU

Palstar HF Auto ATU

DL2K 2Kw Dummy Load 

Comet 54Mhz Low Pass Filter



The SWR on the output of the Amplifier is monitored by a LP-100A Digital Vector RF Wattmeter with control lines coupled to a W2IHY 3x4 switch which in the event of an unexpected SWR reading will automatically disable the Amplifier key line and sound an alarm above a preset threshold.

8433982 Last modified: 2017-11-05 16:50:54, 6945 bytes

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