Hosted by National Hamfest (Lincoln) Ltd in Association with the RSGB
New Product Introductions
SOTABEAMS at the Hamfest
SOTABEAMS will be showcasing new firmware for their popular WOLFWAVE advanced audio processor at the Hamfest. The new firmare includes three exciting binaural modes for use on CW and SSB as well as an unusual implementation of a notch filter for use on SSB.
The binaural system makes different tones appear to come from different direction and is based on the latest research into this effect. On CW it allows signals to be differentiated by apparent direction as well as tone, while on SSB it gives a pleasant pseudo-stereo effect. As well as the standard binaural mode two experimental “fold-back” modes have been implemented where the centre frequency appears in one ear while frequencies above and below it are in the other ear. The binaural implementation is especially helpful for contesting as slightly wider RF filtering can be used making it easier to pick up “off-frequency” callers.
The new notch/bandstop system allows the user to completely remove a selected part of the audio spectrum. This facility is especially useful for SSB DXing where interference from other SSB signals and data sytems can easily be identified and removed.
G3AAF Electronics introduces the new Spectrum Analyser ToolKit from RF Design at Newark Hamfest. SAT1 extends the performance of your spectrum analyser to include noise figure alignment plus a unique very low noise amplifier (VLNA) for the lowest DANL (noise floor) available. SAT1 and SAT1 PRO are supplied with a laminated calibration graph for noise figure measurement and supported by a range of on-line Application Notes and an email help line. For more information please visit www.g8fek.com.
Professional Grade Audio Equalisation for Amateur Radio Control which frequencies you want to boost or cut!
Parametric Equalisation: A parametric equaliser allows any specific part of the frequency range to be selected and adjusted in strength. The user is able to precisely select a frequency to boost or cut. For example, instead of having a simple mid-range adjustment as in a standard graphic equaliser which boosts or reduces a pre-set range of frequencies, you can specify exactly which frequency to boost or reduce.