Mfj-442x slimline electronic keyer (without paddle)
Click the image to enlarge

MFJ Enterprises

MFJ-442X Slimline Electronic Keyer (without paddle)

£0.00
(£0.00 exc. VAT)
£121.96
(£101.63 exc. VAT)
Fast uk delivery
Worldwide delivery
Out of Stock
Qty:


0 Reward points
Product code: mfj-442x
Download a pdf document for MFJ-442X Slimline Electronic Keyer (without paddle)

Want to be notified when this product is back in stock? Complete the form below and we'll send you an email when it is.

Finance Available

Radioworld now offer finance through our partners Close Brothers.

Add the item to your basket in the normal way and at checkout choose to make payment via Finance. You’ll then be taken through to our partners Pay4Later to make your finance application.

Item CostFinance OptionDepositMonthly PaymentsTotal Cost
£121.96
12 Months 14.9% APR
£12.20
£10.51
£138.31
£121.96
18 Months 14.9% APR
£12.20
£7.01
£138.31
£121.96
24 Months 14.9% APR
£12.20
£5.25
£138.31
£121.96
36 Months 14.9% APR
£12.20
£3.50
£138.31
£121.96
48 Months 14.9% APR
£12.20
£2.63
£138.31
£121.96
12 Months 19.5% APR
£12.20
£10.93
£143.36
£121.96
18 Months 19.5% APR
£12.20
£7.29
£143.36
£121.96
24 Months 19.5% APR
£12.20
£5.47
£143.36
£121.96
36 Months 19.5% APR
£12.20
£3.64
£143.36
£121.96
48 Months 19.5% APR
£12.20
£2.73
£143.36

Click here to recommend this product to a friend

Recommend a friend

Mfj-442x slimline electronic keyer (without paddle)

MFJ-442X Slimline Electronic Keyer (without paddle)


The MFJ-442X Slimline electronic keyer is a similar model to the MFJ-42, but it requires the user to fit their paddle. It is compatible with all modern transceivers and offers a speed range of 2 to 65 words per minute. The keyer features adjustable volume and weighting controls, as well as options for iambic, auto, and semi-auto modes. It supports a maximum of 507 characters with 9 elements per character. The key output is through a phono connector. The keyer can be powered by either an internal 9V supply or an external 12V supply. Its dimensions are 106 x 67 x 110mm.

Selected MFJ PRODUCTS Normally delivery 14-21 days special order,

All orders placed on this website will not be subject to VAT for customers residing in the European Union or the rest of the world. However, it is important to mention that VAT will still be applicable based on the rates set by your country upon delivery.

Our Price Match Promise means that if you find any of our Equipment at a lower advertised price elsewhere, we will match the price for you, subject to the below.

  • The product is identical to ours in brand, colour, size and model number.
  • The price must be the advertised price clearly on the competitor's online site.
  • The item must be in stock and available for immediate purchase (rather than available to order), with the authorised stockist able to complete delivery within 2-3 days.

Please fill out the form below. The details will be used to help us with your price promise request.

Your Details

Competitor Product

Weblink showing other retailers product at a reduced price, in stock and ready for dispatch

Product Details