19 June 2007

A source of integrated circuits for the SC26L have been found and procured. This board is now available again for anyone wishing to add CEPT to a UK only rig.

5 November 2006   The list of kits has been reviewed and it has been decided to withdraw from sale the Antenna Autochange, and also the conversion boards SC26T, and SC27U.  The availability of reasonably priced dual or multiband CB rigs has now made the purchase and fitting of some synthesizer kits uneconomic.  In some cases the integrated circuits required for the kits have disappeared from stockists World-wide.

        Contents

        Receive Preamp, boxed, RP11S

        Speech Processor, boxed, SP1000

        Safety Microphone, boxed, SM2

        Piptone bleep, PT1000S

        Kaytone bleep, KT2000

        Tunetone bleep, TT2000

        Hygain bleep, HG2000

        Spectra bleedover filter, SF10.7

        Noise squelch, NS1000

        Frequency mod-demod, FM455

        Speech Processor for Cybernet multimode, SP059

        VCO block for Cybernet multimode, VCO27

        UK band add-on for PLL02A multimode rigs, SC02A

        UK & Lo-Lo band add-on for PLL02A rigs, SC02B

        UK band add-on for PLL02A AM/FM rigs, SC02C

        UK band add-on for Cobra 148/Superstar 360 rigs, SC106

        UK band add-on for Superstar 3900 rigs, SC3900

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RP11S RECEIVE PREAMP for 11metres, RF switched 0-20dB panel adjustable gain. Through power handling 100W. Over voltage and reverse voltage protected. Protected against static discharges at input and output ports. Purpose made box 76 x 70 x 38mm. Fitted with SO239 connectors. Operating supply 13.5V 80mA. Boxed Kit £29.00, Boxed Built £47.00.

SP1000 SPEECH PROCESSOR to increase the sideband power and hence communications effectiveness of SSB and AM ransmissions. The unit has a frequency response which enhances the higher voice tones which carry most of the intelligibility. The peak to mean ratio of the transmission is improved by 10dB which has the same effect as increasing the transmit power by 10 times. Boxed Kit £29.00, Boxed Built £63.50.

SM2 SAFETY MICROPHONE lightweight headset connected via a thin cable to a control box. This box which is usually mounted near the gear lever in a vehicle has a push button for momentary operation and a toggle switch for long overs. A curly lead connects the control box to your rig.  Built £29.95.

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PT1000S PIPTONE Roger Bleep. The unit provides 50mV across a 600 ohm microphone. Tone frequency and amplitude are pre-settable. A relay is included for loudspeaker and PTT switching. PCB size 44 x 25 x 17mm. PCB Kit £7.25, PCB Built £11.75.

KT2000 KAYTONE Bleep (a name coined by Spectrum), this unit is the successor to the original Kaytone sold in 1979. End of message morse K particularly useful for weak signal situations. Adjustable pitch, speed, and level. A relay is included for TX and RX switching making it suitable for all rigs. PCB size 58 x 39 x 15mm.   PCB Kit £9.00, PCB Built £15.50.

TT2000 TUNETONE Bleep. Musical end of message signal with nine individually selectable notes. Adjustable pitch, level, and speed. With relay switching to make it suitable for all commonly available rigs. PCB Kit £9.95, PCB Built £18.75.

HG2000 HYGAIN BLEEP  A board designed to mimic the sound made by the bleep unit in the Hy Gain 5 multimode rig. Adjustable speed and level.  With relay switching to make it suitable for all comonly available rigs.  PCB kit £12.50, PCB Built £21.50.

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NS1000 NOISE SQUELCH a really effective cure for all the annoying background noise produced by FM receivers. Allows reception of weak signals without loss of any except those which would have been unreadable anyway. Particularly useful for homebase use where its performance like that of AM is less annoying.        PCB Kit £11.25, PCB Built £16.75.

SF10.7 SPECTRA FILTER active filter incorporating a 2 pole crystal filter to replace the 10.7MHz ceramic first IF filter in early CB radios. The effect is to reduce bleedover by about 90% and by being active does not cause loss of sensitivity of the rig. PCB size 36 x 20 x17mm. PCB Kit £7.00, Built £9.25.

FM455 FREQUENCY MOD-DEMOD adds very good quality FM transmission and reception to AM only CB rigs. Receive side connects to the last IF amplifier before the AM detector. The transmit side connects directly to the microphone input and provides processed audio to the varicap diode in the PLL circuit. PCB size 44 x 39 x 16mm. PCB Kit £9.00, PCB Built £14.00.

SP059 SPEECH PROCESSOR for Cybernet multimode rigs. Specially designed to overcome poor quality audio on PTBM059 & PTBM121 chassis. The board picks up the audio drive to the VCO processes it and then feeds an add-on varicap board. PCB size 40 x 20 x 15mm. PCB Kit £7.50. PCB Built £11.00.

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VCO27 VCO BLOCK for Cybernet multimode rigs to allow conversion for 10 metres or to allow the rig to accomodate extra channels such as UK81. Type for CB bands VCO27, for 10 metre band VCO28. Built £7.50.

SC02A SYNTHESIZER CONVERSION, eprom board for adding UK81 to Cybernet multimode rigs. PCB size 40 x 30 x 10mm.  PCB Kit £13.50, PCB Built £15.00.

SC02B SYNTHESIZER CONVERSION, adds UK81 and 40 below the existing low band to Cybernet multimode rigs. To achieve this spread of channels a replacement VCO block VCO27 will probably be required. PCB size 40 x 30 x 10mm. PCB Kit £13.50, PCB Built £15.00.

SC02C SYNTHESIZER CONVERSION, adds  UK81 to Cybernet AM/FM rigs. PCB size 40 x 30 x 10mm. PCB Kit £13.50, PCB Built £15.00.

SC106 SYNTHESIZER CONVERSION, adds UK81 to Uniden multimode rigs, Stalker 9, Cobra 148GTL DX, Superstar 360, Maddison, Jackson, State rig type when ordering. PCB size 40 x 30 x 10mm. PCB Kit £13.50, PCB Built £15.00.

SC3900 SYNTHESIZER CONVERSION, adds UK81 to Superstar 3900 and Galaxy Pluto rigs. PCB size 50 x 40 x 10mm.  PCB Kit £15.00, PCB Built £16.50.

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