G3RUH 9600 Baud Packet Radio Modem PCB -------------------------------------- SECTION 7 - COMPONENTS LIST From G3RUH PCB Manual (18 pages) (See Section 12. for 19200 baud changes) RESISTORS - (All 2%, 0.4" pitch) R1,6,14-16,21 100k (6) R8 47k R22 56k R2,5 4k7 (2) R17 82k R23 3k3 R3 18k R18 39k R24 12k R4,9-13,20,27-28 10k (9) R19 27k R25,26 100 (2) R7 33k Note: 4k7 = 4700 ohms, etc VR1 10k Cermet Trimmer e.g. Spectrol 63, 64 series, Bourns 3386, 3266, 3296 etc. PCB Drilled for all types. CAPACITORS C1-16,19,21-22,24-25 100n 20% monolithic (21) 0.1" pitch (NOT 0.2") C17,33-34 10u 16v tantalum (3) 0.2" pitch C18 4n7 20% monolithic ceramic 0.1" pitch C20 100p 20% monolithic ceramic 0.1" pitch C23 1n 20% monolithic ceramic 0.1" pitch C26 220p 2.5% polystyrene Note: C27-28,32 1n 2.5% polystyrene (3) 100n = 0.1u C29 3n3 2.5% polystyrene 10n = 0.01u C30 100p 2.5% polystyrene 4n7 = 0.0047u C31 470p 2.5% polystyrene 1n = 0.001u etc INTEGRATED CIRCUITS U1,3 4029 (2) Up/down counter U2 27C64 Eprom - RX (or 27C128 and/or NMOS) U4,7,12,14,18 74HC164 (5) 8-bit shift register U5,17 74HC74 (2) Dual D type U6,13 74HC86 (2) Quad EXOR U8 74HC161 4-bit counter U9,19 ZN429E-8 (2) DAC (or ZN426E-8), Ferranti or GEC Plessey U10 LM339N Quad comparator U11 74HC14 Hex Schmitt inverter U15 27C128 Eprom - TX (or 27C256 and/or NMOS) U16 TL084CN Quad op-amp MISCELLANEOUS TP0-8 Test points (9) JMP1-5 3-pin header, male, SIL, 0.1" pitch JMP6-8 2-pin header, male, SIL, 0.1" pitch 8 x Shorting jacks - 0.1" for JMP1-8 P1 3 pin connector, male, SIL, 0.1" pitch ) P2 6 pin connector, male, SIL, 0.1" pitch ) e.g. Molex etc P3 5 pin connector, male, SIL, 0.1" pitch ) D1 1N4001 diode (or equivalent 1 amp) Q1 LM340T5, LM7805CT etc 5v TO-220 voltage regulator 1 x Redpoint TV46 (TO-126 size) Heatsink. 27 degC/w, 22x19 mm 1 x M3x6 screw and nut IC sockets: 2 x 28-pin. (Optional 14 x 14-pin, 3 x 16-pin). Turned-pin type recommended. 1 x PCB. Notes: Board is single Eurocard size, 160 x 100mm. Double sided, plated through, max copper ground-plane, solder resist and legend. Drilled for an optional DIN 41612 96 way connector. Four 3.3 mm mounting holes provided on 6.05 x 3.50 inch centres. Two spare 16 pin IC positions. A suitable heatsink can also be fabricated from a piece of 1.6mm aluminium, 19mm wide x 40 mm, folded into a "U" shape 19x20 and 10mm high sides, and a 3. 3mm hole drilled in the centre. ORDERING PCB #18 post paid UK/Europe, #19 air-mail elsewhere. CMOS TX and RX Eproms (programmed), when ordered at the same time as the PCB, #6/pair. DACs #5/pair. Built and tested PCB #65. Any eproms ordered separately #5 each chip. You are free to copy the eproms if you wish. PAYMENT Sterling Cheques, Eurocheques (max #150), Travellers Cheques, Cash, or bank draft drawn on a London bank. Also electronic funds transfer, please add #6 bank charges. No credit cards. You can "buy" English pound notes at many banks. I will also accept US dollars in cash only (green notes/ travellers cheques) at a rate of $2 per pound. In case of difficulty, contact me. Prices include postage and packing. Note: # = GBP = Pounds Sterling. James Miller G3RUH, 3 Benny's Way, Coton, Cambridge, CB3 7PS, England Tel: +44 1954 210388 Fax: +44 1954 211256 g3ruh@amsat.org COMMERCIAL AVAILABILITY The modem design is also incorporated in products from: PacComm Inc: NB-96 Kantronics: DE-9600 MFJ: MFJ-9600 Tasco: TMB-965 Symek: TNC2-H and about a dozen more licensees.