The is very little activity in this product range, which is surprising as I had expected a steady increase in media groups and access radio groups needing to set up stations.  Maybe the prospect of the majority of commercial stations going digital in the not-too-distant future is putting off groups from making the investment.  The truth is of course that the DAB radios produce really poor quality audio in comparison with the analogue service.  It is just digital for the sake of it.  Technology should not be retrograde!  Maybe customer reaction will either cause the analogue stations to be continued, or they might just find a way to improve the quality of the audio AND reduce the power consumption of the DAB sets to levels equivalent or lower than the analogue ones.

At last I have made the time to re-calculate the prices of the equipment to take into account the work required to meet the R&TTE Directive.   The prices as shown below and are effective immediately. 

ECONOMY BROADCAST EQUIPMENT FOR 88-108MHz

Mono 1W Transmitter, 0-1W presettable output, synthesized covering 30 channels on 100KHz steps in a 3MHz portion of band II, typical versions 87-90, 102-105, & 105-108MHz. Audio bandwidth 50Hz to 15KHz with pre-emphasis. Built in mono compressor and peak limiter.  Built in SWR meter and output power monitor. Two part painted aluminium case. With 1/4" audio input jack, ON/OFF power switch and LED, out of lock LED, PWR/SWR switch and cal pot on front. SO239 RF socket, BNC RF sampler socket, BNC AF monitor socket, DC input connector, and fuse holder on rear panel.  Supplied with 1 metre DC power lead.  £335.00.  Power supply 13.5V 2.5A  £20.00.  Optional, XLR female connector and balanced line transformer input £21.00.

Transmit Amplifier 25W, two stage amplifier tuned to cover a 3MHz portion of the band, typically requires only 400mW to produce 25W output and capable of running continuously at 32W output. Harmonic attenuation to better than -60dB below the carrier at full output. Diecast box with large extruded heatsink that runs at about 40 C in continuous operation, ON/OFF toggle switch and LED on front. SO239 input and output sockets, 1metre twin DC input lead and fuse holder on rear.  £120.00.     Power supply 13.5V 12A £70.00.    Patch lead (transmitter to amplifier). £2.50.

RACK-MOUNT BROADCAST EQUIPMENT FOR 88-108MHz

Mono 1W Transmitter, 2U x 150mm rack case with integral power supply. 0-1W presettable output, synthesized covering 30 channels on 100KHz steps in a 3MHz portion of band II, typical versions 87-90, 102-105, & 105-108MHz. Audio bandwidth 50Hz to 15KHz with pre-emphasis. Front mounted ON/OFF toggle switch and LED indicator, out of lock LED indicator, SWR/PWR switch, SWR cal control, SWR/PWR panel meter. Rear mounted IEC filtered connector for mains input, XLR 3 pin female connector for audio input with balanced line transformer, BNC AF monitor socket, fuse holder, and SO239 connector for RF output, BNC RF monitor socket. IEC mains cable.   £470.00 

Mono 10W & 25W Transmitter, 2U x 250mm rack case with integral RF power amplifier and larger power supply, and fan cooling. Otherwise data as the 1W transmitter above.  10W version £580.00, 25W version £650.00. 

Stereo 1W Transmitter, 2U x 250mm rack case with transmitter as above plus a compressor and stereo encoder, additional XLR connector and balanced line transformer. Average desk levels from -6dB to +14dB are gain adjusted by the compressor to the same level as a 0dB average signal. £600.00. 

Stereo 10W & 25W Transmitters. 2U x 250mm rack case with integral RF power amplifier and large power supply, and fan cooling. Otherwise data as 1W stereo transmitter above. 10W version £700.00, 25W version £780.00. 

ANTENNAS, METERS & CABLE

Omnidirectional 'Slim Jim' Antenna, looks like a giant trombone on end, gives 1.5dB gain and together with an almost horizontal radiation pattern usually out-performs dipoles, folded dipoles, and colinears. 2.5metres overall height.           £50.00.   Mast to pole clamp to suit 2” mast.  £5.00.

SWR meter calibrated at 100MHz.                                                                         £20.00.

SWR/Power meter calibrated at 100MHz.                                                              £25.00.

Coax cable RG213UBX, 0.08dB/m loss.                                          £1/m, £75/100m reel.

Coax cable MINI 8, 0.126dB/m loss (measured)                          £0.75/m, £60/100m reel.

Normal delivery 15-20 working days, 3-4 calendar weeks.  Emergency Service 7-10 working days, 2 calendar weeks, add £75 to cost of transmitter and £40 to the amplifier.   Delivery by carrier, minimum £25.00.  

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