70cm Model Plane Remote Controls


In the postings on DSE, SOCOG, LIPDs and etc and the future of 70 cm of late, there has been no mention of one other activity - radio controlled model planes.
 
For some months now Oatley Electronics has been advertising digital TxRx units for $37 that work on 433.9 MHz. I guess these would be in the LIPD grabbag. One wonders what would happen if a couple of Mitsubishi bricks were hung on the end. One may not have to -  See Electronics Australia for March 1999, p67/68. The topic under discussion is radio controlled planes and as the scan file was a bit big for here, I quote -
 
"Oatley Electronics is planning a suitable 433 MHz high power radio control system, which we hope to publish later this year."
 
There is then brief mention of 27 MHz, 40 MHz and 433 MHz in RC context. The article continues and makes reference to 304 MHz and the fact that EA has previously published RC material on this latter frequency. Then, and I quote -
 
"Unfortunately this frequency is also allocated for defence purposes, so the operating range of these projects is therefore limited to comply with the regulations."    <snip>
"However, as mentioned, Oatley Electronics is planning a 433 MHz system, which may better suit your needs."
 
How many radio controlled model-planes are there out there? And additionally, by necessity at any given meet, the aeromodellers have to have several frequencies in hand to avoid control conflicts in multiplane activities.
 
        73  Rod  VK2BQJ

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