MFJ-1708B - Transmit Receive RF Switch
SKU Part Number: MFJ-1708B
Transmit Receive RF Switch RF sensed switch - Fitted with relay - Delay adjustment - 3x SO-239 sockets - 2x Phono sockets Control & Aux - LED...
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£142.96 £119.13
Availability: In stock

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Transmit Receive RF Switch
RF sensed switch - Fitted with relay - Delay adjustment - 3x SO-239 sockets - 2x Phono sockets Control & Aux - LED power indicator - Power off defaults to transmit mode - Power 12V DC - Size 102 x 72 x 40mm - Weight 200g

With power applied, the MFJ-1708 senses transmitted RF and switches the antenna from receive to transmit using a relay. The antenna socket to the receiver is then grounded which protects the receiver. There is a delay circuit adjustment which gives you delayed switching. It also has a control line input, which allows switching from an external key, keyer or foot switch.


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If you have any equipment that needs to be returned to Martin Lynch & Sons, please fill out the form below:

Click here for returns form

Upon receipt of goods you have 14 days to return goods however the goods must be returned in original packaging and care must have been taken with the goods you wish to return. Under distance selling regulations you are not entitled to any refund on carriage charges or modification charges made at your request.

Warranty Terms and Conditions

Outside of the 14 faulty return period, returned items cannot be accepted, unless covered by manufacturer's warranty. We will repair as much as possible on site however in exceptional circumstances products may have to be returned to the manufacturer of distributor.

For repairs/replacements under manufacturer’s warranty for any item please download a ML&S return form from the link above and return to ML&S with the faulty product.

International Warranty information

Warranty service for items we sell is available in the U.K. only, unless otherwise noted. It is your responsibility to pay freight for returned items to the U.K. and back to you for desired warranty coverage. All of our NEW products come with a minimum 12 month warranty, (Yaesu & Icom 24 months), with up to 90 days on second-hand equipment. Items returned for service must state "returned goods for repair" on the return air waybill or U.K. import customs duties apply and will be added to your invoice. For more info about returning items please contact our customer help desk, [email protected]