5314027907

THE SHORT W A V E MAGAZINE

March, 1980

( ((i

\W'

^\\

South Midlands

HANTS - YORK - DERBY - LINCS

♦ i <%r *•

J \i Q \

STOLLE 2050

ROTATORS

AR30 Light VHF/UHF AR40 VHF 4 Light HF BT1 Medium Outy CD44 Medium Outy CD45 Medium Outy HAM IV Very Heavy Outy T2X Ultra Heavy Outy 2050 VHF;UHF Memomatic 2010 VHF/UHF Automatic

AR40

£41.00 £52 00 £79.50 £95.00 £99 00 £145.00 £190.00 £37 50 £45 83

CD45

For antennas to 3 sq ft (tower) £52.00

»7%7^V*I

V.H.F. LINEAR AMPLIFIER

80W out for IOW nominał drive. 145MHz. 12V OC (circa 10A). Switchable. SSBFM Hang time. RF or manuał cont. Low noisc pre amp Remote control unit avaiiable.

B108. (Post free > £99 00

V H F LINEAR AMPLIFIER

& 16CW out 1or 15W maximum drive 145MHz. 12V OC (circa 18A) RF or manuał switchmg. SSB/FM. Excellent heat sink - over temp.; tnp Out/reset with LED. PA15-160BL.

(Post free ) £178 50

• • ^ <v

WATT METERS

LDM885 Through linę (illus 20-200-2000W FSO (P&P 75pł LPM880 Absorption. 5-20-120W FSD (p&p 95p)

1.8- 54MHz £44 50 18 500MHz. £69.00

ANTENNA COUPLER

3.5 30MHz. 50/75 ohm Coax IVSWR<5:1) and Single Wire (10 250ohms) transłormed to 50ohms. To 500W PIP SSR Wattmeter 20 * 250W FSO LAC895 tp&p free £80.50

HF BALUN TRANSFORMER HIQ

1.1 Rabo. 3 40MHz. S0239 (UHFł Socket 5)'x1E 0 7$ozs. "Hang up type". High power handhng

HIQ (Post free of charge! £8. 70

VHF MONITOR RECEIVERS

12 Chan. FM Monitor. 2}‘ x 1}‘x4j‘ 8ozs. 1 2KHz BW. 130- 170MHz.

HF 12 c/w Accessones £50 00

HF 12A12 c/w S (20 23).

RIO 7) £70.00

HF 12M9 c/w 16. 6. 8. 10.

67. M. 12. 14 £66 95

< r".

DIP OSCILLATOR

1.5-250MHz on fundamental, c/w earphone. battery. 6plugmcoils. 1.15MHz crystal set 2kHz modulation LDM8l5(p&p free of charge) £45 00

VHF AND UHF CONVERTORS

SOohm. 9 12V. BNC (p&p free)

MMC-28-70-144/IF £1900

MMC - 70 144/JF/LO £21.00

MMC-432/łF/S £26.00

MMC-1296/IF £26 00

A MULTIMETERS

\ 20K ohms per volt 1000X over)oad on ohmś

Pług m rangę selection.

*** 80 Microtcst 40Ranges £16.50

680G Supertest 48Ranges £24 50

680R Supertest 80Ranges £32 00

' ) HF/VHF SWR METER

j.^lJ Twm Metcr. 3 5 to 1 70MHz. Całibrated to 3 1 SWR. 50ohms. Relative power. S0239

r sockets. T3 170L (p&p 60pł £11.25

_DIGITAL FREOUENCY COUNTER

10OKHz to 30MHz. 12V DC operation 5 7 segment displays resolves to 10HZ only

6i x 2i' x 5$'.

RT75D (p&p free). New Low Pricc £38.26

HIGH EFFICIENCY VHF VERTICALS (lllustrated)

RINGO RANGER: 6dB gain over i' ground piane. Uses 3 phascd $ ^ar>d i stub. Ultra Iow angle radiation No rad'3's reguired.

ARX2 144MHz 9' 6‘ tali. IJIbs (p&p £1.00)

NEW LOW PRICE £20 00

Other omnidirectionał VHF antennas - honzontai and vertical in stock.

* ALL PRICES EXCLUDE VAT 15% *

i.

COAXIAL RELAYS

12V DC operation. 50ohms. IKWPEPat 3 OM Hz 50dB isolauon at 1 GHz. 0.2dBlossat 0 5GHz (p&p free of charge).

CX540D 3BNC Sockets £1850

CX530D 3BNC + 1 *N‘ £18.50

CX520D 3'N* sockets £18.50

CX120A 50W Cabłe entry £9.30

CX120P 5CW Pin connectioo £9.30

VHF/UHF SWR/POWER METER

Power 10W FSD on 50 (70). 144. 432MHz VSWR. Całibrated to 3:1.50ohms. Oetachable RF head/mdrcator unit. UH74 (p&p 60p) £12.75

DIGITAL MULTIMETER

1-10-100010000. ACV DCV ACmA. DCmA. Obms 10M ohm input impedance as AC & DC. Automatic zero and polarny.

ME522 (p&p free) New Low Price £38.26

NEW FIVE BAND HF VERTlCAL ANTENNA

SMCHF5. 80. 40. 15. 10 metres 500W PEP 1O20M. 200W 4O80M 50ohm coax feed. With/without radials. or use trapped radial kit. Securicor delivery on either or both together £3.00.

SMCHF5V Vertical 2.9Kgabout 15j' Remarkablevalue £35.00

SMCHF5R Radiałkit 1.8Kgarca6* £23.35

SOUTH MIDLANDS COMMUNICATIONS LIMITED

AGENTS STOCK AND SALES

OSBORNE ROAD. TOTTON. SOUTHAMPTON S04 4DN 9 5 30 Mon Fri 9 1.30 Sat.

Hcad Office. Showrooms Cables: Aerial Southampton Telex: 477351 SMCOMM G Tel: Totton (0703) 867333

G3ZUL

GI3KDR

GM8GEC

GI3WWY

GW3TMP

Bnan

John

Jack

Mervyn

Howarth

GW4GSW Alan

Stourbndge

Bangor

Edmburgh

Tandragee

Pontybodkin

Swansea

(03843)

(0247)

(031665)

(0762)

(035287)

(0792)

5917

55162

2420

840656

846/324

24140