The boards designed by Glenn, VK3PE, arrived today.
?
These boards are have identical circuitry to the David Fainitski, N7DDC, boards EXCEPT:
1) Glenn's board uses the same PICs but with different packaging and footprints. A 44pin QFP is used for the main PIC and a 14 pin
? ? SOIC is used?for the second PIC. Both of those PICs are available today from Mouser and Digikey. The 5mm QFN parts David
? ? specified are difficult to find today with the worldwide shortage (except in China) and will probably be available later this year or
? ? maybe?next year.
2) Glenn's board has a USB-Micro connector footprint added in addition to the USB-C connector footprint so you can use either.
3) Glenn's board has "tabs" on the side to adjust the width so it fits in several extruded aluminum enclosures. AS-IS fits in a 100mm
? ? x 88mm enclosure (like the uSDX Triband Transceiver). Trim the "tabs" to the first line and the board fits in a 100mm x 82mm
? ? enclosure. Trim the "tabs" off to the?second line the board is the same size as David's ATU-10 board and fits in a 100mm x 71mm
? ? enclosure. Is that a cool idea Glenn had or what ?
4) You would be responsible for all the rest of the parts needed. The IM41G latching relays are still available on ebay for $10 for 10 :
? ? 10pcs IM41GR 5-1462037-4 Signal Relay 2A 120VAC 3VDC SMT 8 Pins
5) You get the pleasure of building your own ATU.?
Boards are available from me for $5 postpaid in the USA and shipped in a "Non-Machinable Postage" envelope. Overseas postage is outrageous and much higher. Send me a private email if you want one.?
73 Kees K5BCQ
