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$40 Digital Voice Storage ID'er WA4ADG 10 Feb 89 +
220-MHz 9600-Baud Data Radio System for Packet W2DUC 67 Feb 89 +
A New Addition for your TNC K9MLD 72 Dec 89 +
Add a digital readout to the "poor man's spectrum analyzer" WA2PZO 84 Sep 88 +
Amateur FSK: A spectral analysis WA6NCX 42 Dec 86 +
AMTOR, AX.25, and HERMES: a performance analysis of three systems W9JD 63 Dec 85 +
AMTOR, AX.25, and HERMES: a performance analysis of three systems Comments, G3PLX 9 May 86 +
Annunciator bell for the Kantronics KPC2 K1ZJH 22 Aug 86 +
Artificial Intelligence Applications In Amateur Radio NULN 30 Oct 89 +
Audio filter design, computer-aided KE2J 15 Oct 85 +
AUTOTRAK, A simple rotor interface board for the C-64, VIC-20, etc K7NH 10 Dec 87 +
Basic rules and gates Anderson, Leonard H. 76 Jan 79 +
Build a QSO "beeper" KF6CU 38 Jan 88 +
Building a Digital Filter NB9K 9 Apr 89 +
CAT control system for the Yaesu FT-757GX SM6CPI 26 Nov 87 +
Commodore 64, $100 printer (HN) W2QLI 86 Aug 85 +
Computer control of ICOM R-71, 271, 471, and 751 radios NG6Q 47 Apr 86 +
Continuous phase tones Comments: G3VMR 6 Aug 87 +
Counters and weights Anderson, Leonard H. 66 Aug 79 +
Decoding data signals WB4GCS 60 Dec 88 +
Deluxe logic probe M. Wilde 74 Jan 87 +
Digi-Keyer AB4DP 68 Oct 89 +
Digiscope WB0CLH 50 Jun 79 +
Digital can do more, Comments KA4JFO 9 Mar 86 +
Digital clock, build a fail-safe K1MC 54 Oct 85 +
Digital frequency readout using the Commodore 64 W3NNL 83 Nov 85 +
Digital HF radio: a sampling of techniques KA2WEU/DJ2LR 19 Apr 85 +
Digital HF radio: a sampling of techniques Short circuit 121 May 85 +
Digital signal processing, part 1: the fundamentals NU1N 24 Apr 90 +
Digital techniques: gate arrays for control Anderson, Leonard H. 82 Jan 80 +
Digital techniques: inside a phase-frequency detector Anderson, Leonard H. 28 Sep 82 +
Digital techniques: shocking truths about semiconductors Anderson, Leonard H. 36 Oct 82 +
Digital voice storage in the ham shack WA4ADG 56 Mar 90 +
Digital voice storage in the ham shack Short circuit 81 May 90 +
Digital-circuit problems, avoiding built-in, part one W1BG 43 Sep 81 +
Digital-circuit problems, avoiding built-in, part one Comments VE2QO 6 Dec 81 +
Digital-circuit problems, avoiding built-in, part two W1BG 50 Oct 81 +
Digital-circuit problems, avoiding built-in, part two Comments VE2QO 6 Dec 81 +
Direct synthesis VFO W7SX 10 Sep 88 +
Down counters Anderson, Leonard H. 72 Sep 79 +
DTMF controller for repeaters WB4FXD 47 Sep 85 +
DTMF Group Call Decoder AA4NX 53 Mar 89 +
DTMF tone signaling circuit WV6A 42 Sep 88 +
Dynistor, the W6GXN 49 Apr 68
Electro-Braille Transducers and their Application I4MK 59 Mar 89 +
Elmer's notebook: an introduction to AMTOR W1SL 101 Sep 87 +
Elmer's notebook: an introduction to digital communications W1SL 92 Jul 87 +
Elmer's notebook: packet radio W1SL 100 Oct 87 +
Finding the Source of Computer-generated interference KBTM 30 Sep 89 +
Flip-flop internal structure Anderson, Leonard H. 86 Apr 79 +
Frequency synthesis up to 2 GHz WA6DYW 22 Apr 88 +
Gate arrays for pattern generation Anderson, Leonard H. 72 Oct 79 +
Gate structure and logic families Anderson, Leonard H. 66 Feb 79 +
Get on SSTV - with the C-64 I2CAB, I2AED, ed. K9EI 43 Oct 86 +
Get on SSTV - with the C-64 Short circuit 97 Oct 87 +
Going Digital NH6N 20 Jan 89 +
HP-11 serial loop Martin, Vaughn D. 101 Apr 84 +
Improving the WB3CEH programmable callsign identifier (HN) KL7XO 82 Sep 87 +
Making waves W6HDM 44 Mar 82 +
Multivibrators and analog input interfacing Anderson, Leonard H. 78 Jun 79 +
Packet board update Comments: VE3LNY 6 Jan 87 +
Packet radio and area networking WB3JZO 38 Dec 84 +
Packet radio primer WA1FHB 30 Dec 85 +
Packet radio TNC for the IBM PC VE3LNY 10 Aug 86 +
Packet radio, automatic frequency and deviation tester WB2OSZ 41 Dec 85 +
Packet radio, introduction to VE2BEN 64 Jun 79 +
Packet radio: part1 KV7D, KV7B 14 Jul 83 +
Packet radio: part2 KV7D, KV7B, WA7GXD 18 Aug 83 +
Packet radio: the software approach W4UCH 63 Sep 84 +
PL tone generator, a programmable WB0VSZ 51 Apr 84 +
PL tone generator, a programmable Short circuit 125 May 84 +
Practically Speaking: Getting to know the Logic Families- pt 1: TTL K4IPV 34 Dec 89 +
Practically speaking: using the digital frequency counter- some pitfalls K4IPV 47 Apr 88 +
Propagation delay and flip-flops Anderson, Leonard H. 82 Mar 79 +
RAM drive for packet radio AD1B 44 Dec 87 +
RTTY reader, interrupt-driven KN4L 72 Sep 84 +
Run RTTY on your Timex NU4V 110 Apr 85 +
Run RTTY on your VIC-20 W5TRS 120 Apr 85 +
Satellite tracker, digitally-controlled KA8OBL 102 Sep 85 +
Self-gating the 82S90/74S196 decade counter (HN) W9LL 82 May 79 +
Simple PROM Programmer, A V4V6A 81 Mar 89 +
Smith Chart impedance matching on your Commodore 64 WA9GFR 120 Oct 84 +
Software piracy (letter) Forsyth, Mike 8 Sep 84 +
Spread spectrum and digital communication techniques: a primer N9NB 13 Dec 85 +
Station Control Node Expand Your Versatility with SCN WAQRJT 23 Mar 89 +
Synthesizers, VHF and UHF, design of digital components G4CLF 26 Jul 82 +
Talking digital clock K9KV 30 Oct 79 +
The Guerri report W6MGI 124 Jan 86 +
The Guerri report W6MGI 125 Apr 86 +
The Guerri report: computer technology W6MGI 54 Nov 84 +
The Guerri report: computer technology Short circuit 8 Dec 84 +
The Guerri report: signal processing W6MGI 156 Dec 84 +
Thumbwheel frequency selector for the Yaesu FT-757GX KA9SNF 33 Nov 87 +
True frequency digital readout for the HW-101 NU4F 8 Jan 87 +
True frequency digital readout for the HW-101 Short circuit 41 Aug 87 +
Two-Loop 10-Hz Step 40-70 MHz Synthesizer PY1LL & C Mathias 24 Jan 89 +
Ultra Low Power Four-digit Sequence Touch Tone Decoder WA4ADG 30 Dec 89 +
Ultra Low Power Four-digit Sequence Touch Tone Decoder Short circuit 87 Mar 90 +
Using an RTTY terminal unit with the Heathkit HD4040 TNC AA8V 59 Aug 86 +
VIC-20 printer (HN) W2QLI 88 Sep 84 +


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