hr index - receivers and converters - high-frequency receivers

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1.9MHz receiver W3TNO 6 Dec 69 +
15-meter sideband transceiver WA4ZXF 12 Mar 83 +
15-meter sideband transceiver Short circuit 80 Jul 83 +
160-meter receiver, simple W6FPO 44 Nov 70
20-meter receiver with digital readout, part 1 K6SDX 48 Oct 77 +
20-meter receiver with digital readout, part 2 K6SDX 56 Nov 77 +
28-MHz superregen receiver K2ZSQ 70 Nov 68
432-MHz converter N9KD 74 Apr 79 +
455-kHz bfo, transistorized W6BLZ, K5GXR 12 Jul 68
7-MHz direct-conversion receiver W0YBF 16 Jan 77 +
7-MHz receiver K6SDX 12 Apr 79 +
7-MHz ssb receiver and transmitter, simple VE3GSD 6 Mar 74 +
7-MHz ssb receiver and transmitter, simple Short circuit 62 Dec 74 +
80-meter receiver for the experimenter W6XM 24 Feb 81 +
80-meter receiver for the experimenter Comments 6 Jun 81 +
80-meter receiver, simple WB2EAV 25 Nov 86 +
Bandpass filters for receiver preselectors W7ZOI 18 Feb 75 +
Bandpass tuning, electronic, in the Drake R-4C Horner 58 Oct 73 +
BC-1206 for 7 MHz, converted W4FIN 30 Oct 70
BC-1206 for 7 MHz, converted Short circuit 72 Apr 71
BC-603 tank receiver, updating the WA6IAK 52 May 68
Better frequency stability for the Drake TR7 HB9ABO 21 Aug 87 +
Blanking the Woodpecker, part 2: a practical circuit VK1DN 18 Feb 82 +
Blanking the Woodpecker, part 2: a practical circuit Comments, NP4B 8 Jul 82 +
Blanking the Woodpecker, part 3: an audio blanker VK1DN 22 Mar 82 +
Blanking the Woodpecker: part 1 VK1DN 20 Jan 82 +
Card File station for 40 Meters, The Weekender W6XM 56 Sep 89 +
CAT control system for the Yaesu FT-757GX SM6CPI 26 Nov 87 +
CB to 10 fm transceiver conversion VE3FIT, VE3AQN 16 Feb 83 +
Collins 75A-4 hints (HN) W6VFR 68 Apr 72
Collins 75A-4 modifications (HN) W4SD 67 Jan 71 +
Collins receivers (letter) G3UFZ 90 Jan 78 +
Collins receivers, 300-Hz crystal filter for W1DTY 58 Sep 75 +
Communications receiver for 80 meters, IC VE3ELP 6 Jul 71
Communications receiver, five band K6SDX 6 Jun 72 +
Communications receiver, micropower WB9FHC 30 Jun 73 +
Communications receiver, micropower Short circuit 58 Dec 73 +
Communications receiver, miniaturized K4DHC 24 Sep 74 +
Communications receiver, optimum design for DJ2LR 10 Oct 76 +
Communications receiver, solid-state I5TDJ 32 Oct 75 +
Communications receiver, solid-state Correction 59 Dec 75 +
Communications receivers for the year 2000: part 1 DJ2LR 12 Nov 81 +
Communications receivers for the year 2000: part 2 DJ2LR 36 Dec 81 +
Communications receivers, high frequency, recent developments in circuits and techniques f DJ2LR 20 Apr 80 +
Communications receivers, miniature design ideas for K4DHC 18 Apr 76 +
Compact 20-meter CW receiver, A K1BQT 8 Jun 87 +
Compact 20-meter CW receiver, A Short circuit 6 Jul 87 +
Compact 20-meter CW receiver, A Short circuit 81 Sep 87 +
Compact SSB receiver K1BQT 10 Nov 83 +
Compact SSB receiver Comments KAOGPE 10 Mar 84 +
Companion receiver, all-mode W1SNN 18 Mar 73 +
Converter Tunes 4 to 18 MHz with No Bandswitch W5FG 26 May 89 +
Converter, hf, solid-state VE3GFN 32 Feb 72
Converter, tuned very low-frequency OH2KT 49 Nov 74 +
Converter, very low frequency receiving W2IMB 24 Nov 76 +
Crystal-controlled phase-locked converter W3VF 58 Dec 77 +
CW regenerator for Amateur receivers W3BYM 64 Oct 80 +
Designing a modern receiver WB3JZO 23 Nov 83 +
Designing a state-of-the-art receiver KA2WEU/DJ2LR 17 Nov 87 +
Digital HF radio: a sampling of techniques KA2WEU/DJ2LR 19 Apr 85 +
Digital HF radio: a sampling of techniques Short circuit 121 May 85 +
Digitally programmable high-frequency communications receiver WA9HUV 10 Oct 78 +
Digitally programmable high-frequency communications receiver Comments Foot, WA9HUV 6 Apr 79 +
Direct-conversion receivers W3FQJ 59 Nov 71 +
Direct-conversion receivers PA0SE 44 Nov 77 +
Direct-conversion receivers, improved selectivity K6BIJ 32 Apr 72
Direct-conversion receivers, simple active filters for W7ZOI 12 Apr 74 +
Diversity receiver, high-frequency, from the 1930s K4KJ 34 Apr 80 +
Double-conversion hf receiver with mechanical frequency readout Perolo 26 Oct 76 +
Drake R-4C product detector, improving (HN) W3CVS 84 Mar 80 +
ESSA weather receiver W6GXN 36 May 68
Fet converter for 10 to 40 meters, second-generation VE3GFN 28 Jan 70 +
Fet converter for 10 to 40 meters, second-generation Short circuit 79 Jun 70 +
Fet converter, bandswitching, for 40, 20, 15 and 10 VE3GFN 6 Jul 68
Fet converter, bandswitching, for 40, 20, 15 and 10 postscript 68 May 69 +
Frequency calibration using 60 kHz WWVB W4ZPS 45 Mar 88 +
Frequency synthesized local-oscillator system W7GHM 60 Oct 78 +
Frequency synthesizer for the Drake R-4 W6NBI 6 Aug 72
Frequency synthesizer for the Drake R-4 Modification (letter) 74 Sep 74 +
General coverage communications receiver W6URH 10 Nov 77 +
Gonset converter, solid-state modification of Schuler 58 Sep 69
Hammarlund HQ215, adding 160-meter coverage W2GHK 32 Jan 72
Heath SB-650 frequency display, using with other receivers K2BYM 40 Jun 73 +
HF superhet, 20-meter N3ECZ 65 Nov 86 +
High dynamic range mixing with the Si8901 KB6QJ 11 Mar 88 +
High dynamic range receiver input stages DJ2LR 26 Oct 75 +
High-frequency DX receiver WB2ZVU 10 Dec 76 +
High-frequency receiver performance G4OBU 33 Feb 84 +
Improved stability and dial calibration for the Heathkit HW-8 (HN) W3HVK 103 Nov 83 +
Incremental tuning to your transceiver, adding VE3GFN 66 Feb 71 +
Inexpensive CW filter (HN) WB1AFQ 80 Jan 82 +
Low-noise 30-MHz preamplifier W1HR 38 Oct 78 +
Low-noise 30-MHz preamplifier Short circuit 94 Feb 79 +
Monitoring oscillator W2JIO 36 Dec 72 +
Multiband high-frequency converter K6SDX 32 Oct 76 +
Outboard receiver with a transceiver W1DTY 12 Sep 68
Outboard receiver with the SB-100, using an (HN) K4GMR 68 Feb 70
Overload response in the Collins 75A-4 receiver, improving W6ZO 42 Apr 70
Overload response in the Collins 75A-4 receiver, improving Short circuit 76 Sep 70 +
Pepperdyne receiver W6QIF 33 Nov 88 +
Phasing-type ssb receiver WA0JYK 6 Aug 73 +
Phasing-type ssb receiver Short circuit 58 Dec 73 +
Phasing-type ssb receiver Added note (letter) 63 Jun 74 +
Preamplifier, emitter-tuned, 21 MHz WA5SNZ 20 Apr 72
Preamplifier, low-noise high-gain transistor W2EEY 66 Feb 69 +
Preselector, general-coverage (HN) W5OZF 75 Oct 70
Q5er, solid-state W5TKP 20 Aug 69 +
Radio Interference to shortwave receivers (HN) W6XM 88 Jul 81 +
Receiver incremental tuning for the Swan 350 (HN) K1KXA 64 Jul 71
Receiver sweep alignment system WB6BIH 124 Nov 84 +
Receiver, Pocket, portable SSB WB6BIH 55 Nov 86 +
Receiver, reciprocating detector W1SNN 44 Nov 72
Receiver, reciprocating detector Correction (letter) 77 Dec 72 +
Receiver, versatile solid-state W1PLJ 10 Jul 70
Receiving RTTY with Heath SB receivers (HN) K9HVW 64 Oct 71 +
Reciprocating detector W1SNN 68 Oct 78 +
Regenerative detectors and a wideband amplifier for experimenters W8YFB 61 Mar 70 +
Rf amplifiers, selective K6BIJ 58 Feb 72
RTTY monitor receiver K4EEU 27 Dec 72 +
RTTY receiver-demodulator for net operation VE7BRK 42 Feb 73 +
RTTY with SB-300 W2ARZ 76 Jul 68
Shortwave converter, portable PY2PE1C 64 Apr 81 +
Shortwave receiver, portable PY2PE1C 67 Apr 84 +
Shortwave receiver, portable monoband, with electronic digital frequency readout PY2PE1C 42 Jan 80 +
Simple 40-meter receiver - Weekender W6XM 64 Sep 80 +
Simple direct conversion receiver WA3ENK 9 Dec 88 +
Simple receivers from complex ICs W6VEH 10 Nov 88 +
Simple shortwave broadcast receiver W6XM 83 Nov 83 +
Solid-state 75A-4 receiver KF7M 67 Nov 88 +
Superhet coilset, design with a microcomputer Sterrenburg, F.A.S. 113 Nov 84 +
SW receiver, a double conversion portable PY2PE1C 48 Nov 84 +
Swan 350 CW monitor (HN) K1KXA 63 Jun 72 +
Synthesizer, high resolution hf (letter) DJ2LR 6 Jan 79 +
Ten-Tec Omni-D, improved CW agc for (HN) W6OA 88 Jan 80 +
Thumbwheel frequency selector for the Yaesu FT-757GX KA9SNF 33 Nov 87 +
Tomorrow's receivers: what will the next 20 years bring? W7SX 8 Nov 87 +
Transceiver selectivity improved (HN) VE3BWD 74 Oct 70
Transceiver, 40-meter, for low-power operation WB5DJE 12 Apr 80 +
Transceivers, quasi-bilateral if for K1ZJH 75 Dec 84 +
Tuner overload, eliminating (HN) VE3GFN 66 Jan 73 +
Tuner overload, eliminating (HN) Attenuators for (letter) 69 Jan 74 +
Two-band novice superhet Thorpe 66 Aug 68
Two-band receiver, extending the modular WA3TFS 57 Nov 84 +
Two-band receiver, modular WA3TFS 53 Jul 83 +
Two-band receiver, modular Comments, WA3TFS 8 Sep 84 +
Understanding performance data of high-frequency receivers K6FM 30 Nov 81 +
Understanding performance data of high-frequency receivers Comments KL7HT, K6FM 8 Aug 82 +
Up-conversion receiver for the high-frequency bands: part 1 W2VJN 54 Nov 81 +
Up-conversion receiver for the high-frequency bands: part 2 W2VJN 20 Dec 81 +
Variable Gain 160-meter Preamp KD9SV 46 Oct 89 +
Weather receiver, low-frequency W6GXN 36 Oct 68
Woodpecker noise blanker DJ2LR 18 Jun 80 +
WWV receiver Hudor, Jr. 28 Feb 77 +
WWV receiver, fixed-tuned W6GXN 24 Nov 69 +
WWV receiver, regenerative WA5SNZ 42 Apr 73 +
WWV receiver, simple (HN) WA3JBN 68 Jul 70
WWV receiver, simple (HN) Short circuit 72 Dec 70
WWV receiver, simple (HN) WA3JBN 55 Dec 70
WWV-WWVH, amateur applications for W3FQJ 53 Jan 72


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