5314027836

18

THE SHORT WAVE MAGAZINE

March, 1980

DATOIUG

ELECTRONICS

LIMITED

• YOURDXPO 3    !

Datong RF Speech Clippers add "punch" to your speech signal and help you get through where otherwise you wouldn't Their low-distortion R.F. clipping technigue helps in two ways.'

** MSiMl

Model A.S.P.

Model D75

Firstly łt allows your transmitter to radiate morę useful average power and aecondly it improves the intelligibility of ybur speech m difficult conditions.

The renowned fully automatic R.F. Clipper MODEL ASP is nowjoined by a new manually operated R.F Clipper MODEL D75. This supersedes our original manually controlłed unit. MODEL RFC, and oners the following addttional features:

•

*    Input monitor LED - lights when clipping is betwen 0 and 20 dbs.

*    Power-onLED

*    Low/High input impedance selector

*    Stylish appearance to blend with any rig

Remember: all Datong R.F. clippers connect in senes with your microphone. No intemal connectłons are required. For R.F. clipping at minimal cost our MODEL RFC/M is still available. • MODEL RFC/M is a fully assembłed and tested R.F. Clipper in PCB module fomv You provide Controls, case and power source.

Data sheets on all three R.F. clippers, including the new MODEL D75. are available on request. Price: Model D.75 £49.00 plus Vat (£56.35 total). Model A.S.P. £69.00 plus VAT (£79.35 total).

MORSE

TUTOR

Morse Tutor hasa calibrated speed control plus. and thisis vital. a separately adjustable delay between letters.

Start at. for exampłe. 12 words per minutę but with a two second delay and just reduce the delay as you improve. It delivers five character groups of letters. numbers. or both together The sequence is random so the supply is unlimited!

All this plus portability, built-m loudspeaker, personal earpieceand key jack. Only £43 00 plus VAT (15%). inclusive price £49.45. Fuli data sheet free on request.

MODEL FL1

Frequency Agile Audio Filter

AS REVIEWED IN AUGUST ISSUESOF

^,,QSr^,and^,‘73”

A versatile add-on unit for Communications receivers which helps to extract wanted stgnals from backaround mterference. It connects in dspeaker or headphoi

pass-band tuning" for SBB/ or RTTY reception. and bandwidth down to 20Hz (with limited a.f.c.) gives an amazing capability for pulling weak

w

W

senes with the loudspeaker orheadphones Theeffect issimilarto "I F

SBB/ f.c.Jgn

CW stations out of the QRM. Model FL1 is unique in bemg able to tune itsetf when notchina out unwanted whistles.

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Price: £59 00 plus VAT (£67.85 total).

MODEL UC/1 UP CONVERTĘR

If you already own a good qual'ity ten-metre or two-metre receiver or transceiver you are only £118 away from a realfy high performance je recerver. Just add the magie ingredient, MODEL

nthesised 1 MHz segments from 60kHz

generał cover UC/1 from DATONG!

You get fuli coverage in thirty synthesised 1 MHz segments from 60kH2 (Rugoy MSF) to 30MHz, at high sensitivity and with all the fadlities and high performance of your existing rig!

For good measure UC/1 also adds two-metre coverage to ten-metre receivers. Price: £119.00 plus VAT (£136.85 total).

MODEL AD170 ACTIVE ANTENNA

For sensitive reception right through from MSF at 60 kHz to Band 1 TV DX around 50 MHz, without the need for

an antennae farm. MODEL AD170 has no adjustments and needs no extemal tuning units.

Although only three metr es long. MODEL AD170 has the same directional properties as a fuli size dipole. even at 60 kHz.

Price: £33.00 plus VAT (£37.95 total); Spedal price compłete with mains power unit: £37.00 plus VAT (£42.55 total).

/*■ f M

ALL PRłCES OUOTED INCLUDE POST & PACKING

NEW SHORT FORM CATALOGUE AVAILABLE FREE ON REOUEST (OUOTE REF. RC12)

If you wonder how our products blend into a station. October's Rad. Com. aives some nice examples; out of the 7 photographs of members shacks. 4 show Datong eguipment in use - (three FL1 s. two RFC's and a UC1)

□ATOIMC3 ELE

□IMICS LIMITED

Spence Mills. Mili Lane. 3ram!ey, Leeds LS13 3HE, Engłand. Telephone: [phone]