agenda

The Sherwood Ratings: Transceiver Performance for the HF DX & Contest Operator , Rob NC0B

Rob Sherwood’s name has become something of a standard in the radio amateur equipment world as a trusted comparison guide to the technical performance of a wide range of transceivers.

This presentation will explain the process that Sherwood Engineering go through to produce detailed performance figures for a wide range of transceivers. Rob will talk about the acquisition of a true random sample of the radio, through to the technical processes of measurement and the compilation and presentation of comparative results.

The presentation will also include details of Rob’s recent findings on the long awaited new Elecraft K4D.

Rob will also talk about how modern receivers have become very good but how generally many transmitters need attention to some aspects of their performance.

The Sherwood comparison table

Assessing your station against ICNIRP EMF levels  –  John M0JAV

Ofcom is implementing changes to all transmitting licences to require licensees to comply with ICNIRP general public limits on EMF exposure. This will include previously licence exempt users who transmit at powers of more than 10W EIRP. John will introduce the work of the RSGB and ARRL experts in assessment of exposure to EM fields.

RSGB responded to the Ofcom consultation (on behalf of UK amateurs) and we are now preparing guidance on compliance with the new requirements. The talk will outline these requirements and introduce four ways to conduct and record the results of the assessment include calculating required separation, use of known compliant station configurations and potential mitigating actions.

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