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Most base-type radios, especially HF radios, have keyer circuitry
built in. On those radios where it has been optional (Icom 970, e.g.), it has been a fairly expensive option. Can anyone estimate the amount that it adds to the price of an HF radio? What would we save if it were left off? Considering the ever shrinking role of Morse, does it really make sense to insist that all HF radios include it? It almost seems as if the various manufacturers are afraid to go first in making it an option. It seems like it is more of an ideological issue than a practical one. My guess is that the actual bill-of-materials needed to include a basic keyer into the design of a new transceiver design is no more than $5, and quite possibly less. Assuming that the transceiver has a jack for a straight key, you can add a basic iambic keyer with nothing more than a second jack, a very small microcontroller (e.g. a PIC costing a dollar at most) and some wiring. In transceivers that are already microprocessor-controlled (which is most of the new ones, I think) the iambic-keyer and memory functions can be rolled into the code of the existing micro... so all you really need to add is a jack, wiring, and the additional programming logic. So, the incremental cost of adding one should be quite small. Keyers with a much larger memory, beaconing functions, etc. might require more hardware... but these days you can pack a *lot* of code and memory into a tiny little 6- or 8-pin surface-mount microcontroller. -- Dave Platt AE6EO Friends of Jade Warrior home page: http://www.radagast.org/jade-warrior I do _not_ wish to receive unsolicited commercial email, and I will boycott any company which has the gall to send me such ads! |
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