Transmit Fer Location

Direction Finding System Tracks Down Jammed Repeaters & Cell Sites Models available with computer interface, synthesized speech, for fixed or mobile use, covering 50 MHz to 1 GHz. Caft or fax for details primitiie lime. it w as recognized that there was no practical way to transmit parallel events, whether over wire nr, later on, via radio, There had to he some way to serialize a picture for transmission, t here wns. and it s essentially the same one we use today. The concept of scanning an...

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Back on land with a Yaesu dual-band HT and Mirage dualbond amplifier for mobile portable A-O-27 operation . Photo A. Back on land with a Yaesu dual-band HT and Mirage dualbond amplifier for mobile portable A-O-27 operation . lo the Caribbean, good timing, and an enthusiastic crew, kids and wife included* decided the issue. My wile Heather WB5RMA asked if I would he taking any radios. At first 1 thought it would be too inconvenient on a cruise, but after listening to a talk about...

Circle Om Reader Service Card

FS73C digital tL meter connected with two wires to the receives S meter. Price S 189.00 Unit tracks the Sn readings including the dB values High input impedance prevents loading Near shetf Eife obtained with 9 vqJI battery 1 2 digital display - 2.5J' cubical enclosure Unit excellent for reading peak or dB values Displays modulation amplitude when tfansmitting Excellent for mobiie operation where transceiver's analog S meter is not easily observed SIGNAL CUBE'1 Model FS73 with builMn dipole...

Meters PLUS Meter Transceiver

1 All-Mode Operation SSB.CW,AM,AFSK.FM) on all HP amateur bands and 6 meters JST-145. same as JST-245 but without 6 meters and built-in antenna tuner. 2 MOSFET POWER AMPLIFIER * Final PA utilizes RF MOSFETs to achieve low distortion and high durability. Rated output is 10 to 150 watts on a l bands including 6 meters 3 AUTOMATIC ANTENNA TUNER Auto tuner included as standard equipment. Tuner settings are automatically stored in memory for fast GSY. 4 MULTIPLE ANTENNA SELECTION * Three antenna...

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Camcorder Batteries * Accessories Cordless Phone Butteries Custom Battery Packs NiCiid Ceils * Lithium Cells * Cellular Butteries Dave Miller N29E 7462 Lawler Avenue Niles L 60714-3108 may require firsL bending the flat leads up at an angle, then down somewhat agnin tor the This month's Ham To Ham has an interesting poipourrt of ideas, so letget right Lo it. From Mark Mar ho) in KE6JJR If you're faced with having u> replace a stud-mounted RF transistor in your commercially-made rig. or...

Chicle On Reader Service Card

The prime reason For the ground plane antenna's popularity is that it can be constructed out of common hardware store materials, at a very low cost. The basic ground plane antenna is not a gain antenna, it's a basic zero gain device. There are several construction variations of the ground plane antenna. Let's start with the basic model This can be built from a U HF female coax connector and five pieces of 12 electrical wire with or without the insulation. Fabricating the...

Vlf Regenerative Radioreceiver

Fgm3 Applications

My check or money order is enclosed. Charge VISA or Mastercard Account No Photo F. Another find a versatile switch Joseph J, Carr K4 PV PO Box 1099 Falls Church VA 22041 More neat stuff for radio science observing This month we revisit a couple ui topics lhai are interrelated, but may not appear so initially. B gt combining the FMG-3 magnetic sensor and the VLF receiver, you will have an interesting method for studs ing the effects of solar events on radio propagation. Not long ago this column...

Via Outer Space

Some real-life use of the ham satellites. Farreil Winder W8ZCF 6686 Hitching Post Lane Cincinnati OH 45230 E-mail fwinder 'one.net Dr. Don Miller W9NTP 8339 South, 850 West Waldron IN 46182 E-mail w9ntpdon ind.tds.net During the 1996 Dayton HamVcntion. a short movie was discovered funning at the AM SAT booth. This movie showed two amateur stations involved in a Q5 QSO utilizing the AO-27 satellite. Several months earlier, W8ZCF anil his son, KB8VCO, had been Irving to come up with a plan for...

Full Time Space Snuttle

Simple Carrier Operated Relay Diagram

Other obligations won V keep you Earthbound It'v a shame thai things like making a living or family matters should interfere with our hobby but a good ham is a well-rounded ham, and being surrounded by ham radio twenty-four hours a day is not only impossible, it's unhealthy. Still, there are things happening on the hands that would be nice to investigate, even when we must be involved in other pursuits. Something I like to do in my shack is listen in on two-meter conversations from space. The...

Circle On Reader Service Card

This huge 350 page Second Edition deludes over 500 shortwave and amateur communications receivers made from 1945 to 1996. Here is everything you need to know as a radio collector or informed receiverbuyer. Entry information includes receiver type, date soldT photograph, size amp weight, features, reviews, specilications, new amp used values, variants, vafue rating and availability. Seventy American and worldwide manufacturers are represented. Become an instant receiver expert 6830 Americana...

Ao

Picture receh ed by W9NTP using a Robot 1200C Converter Mode Robot 36 Color . Carlisle. Ohio, did an analysis with a 7 element home-brew yagi for the 70 cm signal from the satellite. He discovered that the satellite transmitting antenna consistently enters the descending pass with vertical polarization and rotates to a nearly horizontal polarization during the completion of the pass. WSZCF s FO 22 horizontally polarized antenna without an elevation rotor therefore gave best performance...

Multi Band Qrp Transceiver

Qrp Multiband Transceiver

Robart S, Capon W3DX formerly WA3ULH 107 Cavalier Drive Charlottesville VA 22901 old Northern California QRP Club NorCal ean be used as an indicator, interest in QRP kit-building is making a strong comeback. This year NorCal membership quietly zoomed past members. One of the key reasons for this enthusiasm in NorCal is the scries ot innovative QRP kits designed by Wayne Burdick N6KR, made available to club members by NorCal and to the general puhlic by Wilderness Radio, These kits have included...