eBay

Screened linear amplifier keying/PTT/switching cable

1m long, Phono/RCA male to Phono/RCA male

Thousands of cables sold worldwide!

High quality screened (shielded) cable. Length approx 1m/3ft 3ins. Suitable for transceivers equipped with a phono/RCA jack for PTT output.

Although it is essential that interconnections in a high RF environment like that near a large amplifier are correctly shielded, many of our customers have had difficulty finding properly screened phono cables. Ours have a high-density helical stranded copper screen.

Cable cut open to show screening

This cable enables your transceiver to control the transmit/receive switching of your HF linear amplifier. Essential if your linear doesn't have RF sensed switching. Even with amplifiers with RF switching, it eliminates the need for switching delays that often mean missing the first part of the other station's transmission - irritating at best, but disastrous while contesting or working fast CW!

Both ends of the cable have Phono/RCA male plugs. One connects to the Key, Tx or PTT input connector of the linear amplifier. The other end connects to the KEY, Tx or PTT socket on the radio.

Also perfect for switching the MFJ-1025 and MFJ-1026 noise cancellers and many transverters and Tx/Rx antenna switchers.

Please check carefully by consulting the manuals for both your radio and your linear amplifier and ensure the keying output of your radio and the input of your linear are compatible before purchasing this cable. The radio or linear can be damaged by connecting incorrectly.

Although we are happy to offer advice, it is ultimately your responsibility to verify that the switching output of your transceiver and the switching input of your amplifier can be safely connected to each other using this cable.

We also sell cables for transceivers which require different connectors. Please visit our eBay shop.

Fair postage. Proof of posting obtained for all shipments. No packing charges. Orders received before 3 p.m. are normally posted on the same day (Mon-Fri).

UK seller - in stock, tested and ready for despatch.

Money back guarantee. If you are unhappy with your cable in any way, simply return it within 60 days for a refund.

If you can't find the cable you need, please contact us. We may be able to make up a custom cable to suit your requirements.