OPERATING INSTRUCTIONS OPERATING INSTRUCTIONS Ashdown FreeBASS Modelling Bass Diversity Wireless System
Thank you for purchasing your Ashdown Engineering Amplifier. If you live in the UK, please register your purchase by completing this form and return it to the following address: Ashdown Engineering, The Stables, Stevens Farm, Chignal St James, Chelmsford, Essex CM1 4TX, England (Alternatively you can register online at http://www.ashdownmusic.com) If you live outside the UK, the local Ashdown distributor may have included a specific registration form for your country.
Important Safety Instructions BASIC PRECAUTIONS WARNING - When using electrical products, basic precautions should be followed, including the following: 1. Read all the instructions before using the product. 2. Do not use this product near water – for example, near a bathtub, washbowl, kitchen sink, in a wet basement or near a swimming pool. 3. This product may cause permanent hearing loss. Do not operate for long periods of time at a high volume level or at any level that is uncomfortable.
Introduction The Ashdown Freebass is a UHF Diversity wireless system specifically engineered for use with bass instruments. Probably the first in the world created expressly for this particular application. Many wireless systems prove inadequate when used for BASS because the instruments signal can be extremely dynamic. This combined with the very low frequencies involved produce a waveform that is exceedingly difficult to reproduce faithfully over a wireless link.
Belt Pack UHF Transmitter with connection cable CH/ON KEY - Turn the transmitter ON by using the CH/ON key. Once the transmitter is turned ON subsequent presses of the CH/ON key will cycle through 4 x operation modes, in order these are: 1. Channel Digit One 2. Channel Digit Two 3. RF Power Level 4. Lock/Unlock A further press of the CH/ON key will return you once again to Mode 1. and the cycle continues round again.
UHF Diversity Wireless Receiver Front MAINS ADAPTER & DC JACK (rear panel) The Ashdown Freebass UHF diversity receiver is supplied with a mains adapter to power the unit. This plugs into the DC jack on the rear panel of the unit. Use only the mains adapter that is supplied with the system. Using any other mains adapter may result in damage to your system. POWER BUTTON - Turn the receiver ON by pressing the POWER button on right hand side of the front panel.
Back AUDIO OUTPUT (rear panel) - Audio output is provided on unbalanced Jack socket and balanced XLR socket located on the rear panel. Use either one of these for connection to your amplification system. MODELLER - 16 bass Models have been created and integrated into the Ashdown Freebass wireless system. These are selected from the MODELLER 16 way rotary switch on the front panel of the receiver. SQUELCH (rear panel) - A SQUELCH circuit is like a noise gate for a wireless system.
UHF Frequency Ranges F7:798.000-822.000(799-827)MHz CH 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 MHz 798.125 798.325 798.525 798.725 798.925 799.125 799.325 799.525 799.725 799.925 800.125 800.325 800.525 800.725 800.925 801.125 801.325 801.525 801.725 801.925 CH 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 MHz 802.125 802.325 802.525 802.725 802.925 803.125 803.325 803.525 803.725 803.925 804.125 804.325 804.525 804.725 804.925 805.125 805.325 805.525 805.725 805.
Specifications TRANSMITTER Oscillation Mode Carrier Frequency Frequency Response Frequency Stability THD Modulation Mode RF Output Power Dynamic Tone Frequency Max Deviation Battery Current Drain Weight RECEIVER Channel Frequency Band Receiver Type Frequency Response Frequency Stability THD Modulation Mode S/N Ratio Dynamic RF Sensitivity Audio Output Power Supply Dimensions Weight PLL UHF Synthesized UHF 470-900MHz Dependent on applicable country regulations 50Hz-15kHz +/-3dB +/-0.
Notes
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