New Solid State

THE KENWOOD R-599 RECEIVER 1.8 to 29.7 MHz (Amateur Bands) Dial readout to xfz KHz Special detectors for SSB. AM, and FM Transceive operation with T 599 Built-in 100 KHz and 25 KHz calibrators Buiit-in 500 cycle CW filter Provision for 2 meter and 6 meter coverage with accessory self-contained converters 120 240 VAC or 12 VDC operation All solid state R-599 389.00 Converters 31.00 S 599 Speaker 16.00. THE KENWOOD T 599 TRANSMITTER , Clear, stable, selectable sideband, AM and CW 4 way VFO...

Fm Your Gonset

Polv Cumul 2, PC 62, Johnson _ 6N2. Aenmun & 0 , HA 460, IX 62 ur VHF 1) New* Plug-in modulator puts the Communicator transmitter on FM. No modification or rewiring on your Communicator. Just plug into mike jack and crystal socket. Compact self-contained modulator measures 4 * 3 xl 4' decided to use a grid-dipper to check the resonance frequencies of all radiator and reflector elements. i connected a 5 turn pick-up coil to the end of the coax feedline down in my shack...

Repeater Applications

In order to build a literature of acceptable methods of getting repeater, control station and auxiliary station licenses, it would be greatly appreciated if anyone or any group managing to get a license application approved would send a copy of the application to us here at 73 Magazine. We'll try to pass along the info we get in this way through the pages of 73 and in person at hamfests and club meetings. Eventually we may be able to put out a handbook of accepted application answers and reduce...

Open Letter To Dannals

Harry, I understand that you have been speaking at ham conventions and telling listeners that I was deceitful in getting my repeater license WR1AAB, I know that you would not dare to face me publicly with such a charge- The license was in no way deceitfully obtained, After talking at great length with Mr. Walker f determined what I considered the simplest system for getting a repeater license, I wrote about this in the Repeater Bulletin, in 73 and I expounded on it at two FM symposiums put on...

Two Meter Fm

The two variable oscillators described can be plugged into I he crystal socket of any receiver or transceiver using 15 MHz receive crystals. The result is a highly stable tunable receiver covering the entire two meter band. This article describes a working, tunable, IC local oscillator covering 146 to 148 MHz, that can be plugged into a crystal socket of almost any of the 2 meter FM receivers sold in the USA. You can build a few for yourself and friends, but please note that a patent has been...

Kmyc Khcp Kkbe

1600 Decker * San Martin, California 95046 (408) 683-4240 or (408) 842-7349 Wri te for full Antenna Line Catalog See KLM ad this issue for our compatibie VHF Power Amp Line AU prices FOB San Martin and are subject to change without notice. all get visited quite a bit. That's 45 in fees, plus the piles upon piles of paperwork. The FCC is making the development of innovative systems such as this extremely difficult to set up and license. When you consider the value of an emergency repeater that...

Info

PossiWe alternate configuration for lower frequency bands. Fig. 5. PossiWe alternate configuration for lower frequency bands. apart. The antenna was then raised to its original height of forty feet, with the point of support having been shifted considerably toward the grid. On the air testing followed, comparing the performance of the new array with that of the dipole relative to which the original antenna was proved. Forward gain is in the order of 5 dB, and front to back ratio 20 dB....

Jctwj

Ron Whitsel WA3AXV 209 Frog Hollow Road Churchville PA 18966 The 420 MHz band is a mecca for amateurs who wish to construct elaborate antenna systems without undue strain on both their pocketbooks and towers. A common method of achieving this goal involves the stacking of many smaller arrays to form one high gain antenna system. Such a system requires the effective and efficient distribution of arriving energy in order to fully realize maximum potential performance. This article describes a...

Hiran

Noodoil tmrriediistfllv- Hundreds o dollars paid* W int completo unit or parts in any condition. AN APN 84 consist ot IP 186 APN-B4 Receiver Indicator and I 342 APN-B4 Transmitter. AN CPN 2A consist of 1P-68 CPN 2A ReceiveHndicator, T-230 A Trantmitter and 0-18 Oicilletor. WIRE COLLECT IMMEDIATELY FOR TOP PRICES Alio wantKf RADIO SETS RTMl UAC 9 AN GRC 106 AM ARC Si AX. AM ARC AN ARC-94 A ARC T3T. Ahi APN-133 RECOVERS fi 13& 8 ARN-B7 R T391 ARN 8J TACAN. AN ARN-52 PLOTTING TABLES PTh*34 ASA...

I

The most exciting 2-meter, handon the market 2-watt, 6-channel Now Midland for years one of the top names in communication equipment brings you a high performance hand-held transceiver in the 2-meter amateur band. What do you get A full 2 watts output power with automatic deviation control. 6-channel capability with crystals installed for .16 .76, .347.94 and ,94 .94. A high performance receiver with mechanical filters, IC and MOSFET front end. Built-in bat-tery S meter. Compact 9 x x 17 s...

Syst

ArV has become something of a stepchild of amateur radio in the last couple of years, as least as compared to its younger sibling, SSTV. There are several good reasons why this has happened. First of all, it is considerably more difficult to get any kind of a signal at all on the air in the fast scan mode than it is with slow scan. Second, and more important, there never has been much literature available that dealt with the subject. Even the most recent ARRL handbook makes only casual...

Co

The Famous Oliver Swan Band Pass Designs now improved by KLM Electronics KLM 13-30-7 For the man who wants an antenna farm on one boom, this log periodic covers 13-30 MHz continuous with max VSWFt under 2 1 and is supplied with a 4 KW pep broad band balun. Attention 6 Meter EnthusiastsTake advantage of sporad ic E and tropo openings with our Super 1 1 Element Bandpass Antenna on a 30 foot boom priced for everyone for everyone's pocket at 79.95 KLM 144-148-16 Optimumly Designed for DXers, Tropo,...

Walker Speaks

The guest speaker at the Rochester Hamfest this year was A. Prose Walker, the chief of the citizens and amateur division of the FCC. Walker spoke before a fulf house at the hamfest banquet. Walker had quite a lot to say to the crowded room full of amateurs. He explained that En his view amateur radio was no longer justifying itself - that appliance operators seemed to be in the overwhelming majority and that amateurs no longer were making significant contributions technically and that in the...

GTX

I DO channel coinfuniEioni P lufei ifittependtpt selec-dLjn cjI Iranshill ,ind leceivi ffpuutinuti ifrri twitch for P'e seift led psinnq lU GTX n b-_ri C re M d y, 94 95 lt 71 AC PO.VEn SUPPLY S49 131 2 rats gt our choct l toclt lull SU 00 REGULAR S3 1 90 UR SPECJAt PACKAGE PRICE S 59 9 amp -Nui J F-FW W fmif H J n Wr NMipr Supple Curv is t Wjlt Gm i pi I r il CT K TO I built in OC PS Jnrf 9J 94 33 31 7 t nu autavoiri ch amp .ce nor I S1 STZ.OD REGULAR 90 OUfl SPECIAL PACKAGE PRICE 139 Pic se...

Cb

The FCC issued the following news release dated May 4, 1973 In an 11-count indictment returned today by a Federal Grand Jury at Detroit, Mich., George Bennett of Detroit and the United CB'ers of America, a Michigan non-profit corporation of which Bennett is President, were charged with violating various provisions of the U.S. Code by distributing counterfeit radio station licenses purportedly issued by the Federal Communications Commission. Additionally, the defendants are charged with making...

Mobileand Dxing

Say, have you been thinking about going mobile but have been putting it off thinking possibly the cost wouldn't really warrant it Possibly you feel you gt e not really in the car enough to enjoy mobile operation. Maybe you've heard it's too much of a disadvantage to make it worthwhile. Mobile hamming does have its advantages, though. You can, for example, take advantage of a good location, like atop a choice hill in an extremely quiet place. And usually a DX station will try a little harder to...

Low Priced Deviation Meter

Deviation of any FM transmitter can be accurately adjusted between 5 kHz and 25 kHz in seconds using voice or tone modulation. The Model ECM-5 closely follows the circuits used in professional equipment except frequency selection is crystal controlled. This allows the elimination of many expensive circuits needed when frequency selection is by VFO. The net result was a tremendous reduction in price without sacrificing quality . 75.00 less batteries and crystals The frequency...

Equipment From

The following list of gear, unless otherwise noted, consists of brand new equipment purchased for testing purposes only. Some have been tested, some remain unopened in original cartons. We are offering this gear at a considerable discount on a first come- first-served basis. Heath IB 101 and Vanguard Scaler S250 Miida Digipei 60 counter with Tempo CL 220 220 xcvr 265 HR2MS 8 ch scanning 2m xcvr 15W 255 TME H LMU 16 ch scanning Midland 13509 220 xcvr S200 Midland 1520 hand-hefd 2 meter SI90...

Lee Serviset

1969 Florence Oregon

When something goes wrong with the test setup for the 73 Crystal Bank, it has to be fixed quickly. Here's Wayne using the Lee Labs Dynamic Serviset in one of its many functions as an rf signal tracer. The Serviset has the ability to trace rf aid af signals, check ac or dc voltage levels and substitute resistance and capacitance values by simply changing a test lead. It takes the place, on a basic level, of at least three or four expensive pieces The unit rs entirely self-contained, which means...

Tape Solder

Ever wish you could solder a connection with a match Now you can with Archer Tape Solder, from Radio Shack. Simply twist your wires together, wrap them with a piece of Tape Solder, and melt it with a match, candle or cigarette lighter flame. No soldering iron needed Tape Solder seems ideal for on-the-spot wiring and repairs, slicing wire, fixing rotor cables half-way up a tov r or any normal soldering job out of reach of a soldering iron. Archer Tape Solder comes in a resealable plastic pouch...

Grid Dip Tuning The Quad

Antennascope

This article describes an effective procedure of tuning the radiators and parasitic elements of a quad antenna with the aid of a grid-dip meter. t is important to tune not just the radiators but also the reflector and director elements for optimum results. Some time ago, ordered my 3 band, 2 element spider type fiberglass quad. I assembled it according to instructions, fit the toroid balun to permit a single feedline and put it on top of my tower. Then I asked a friend to supply me with a...

Or Thru Your Favorite Distributor

Jesuit nets, YL nets, county hunter nets, certificate nets, ad infinitum, there is little room for rag chewing. The extra 50 kHz could have been used as incentive for Extra Class it could have been used to allow more room for Generals mostly it should have been used, During the last two years I've watched with growing horror as the FCC has loosed a flood of asinine regulations. I've tried to talk with the man responsible for this, Prose Walker, but found him to be virtually impervious to reason...

An Experimental Comparison Of Cw Audio Filters

The addition of a CW audio filter to a receiver can greatly improve its noise response and selectivity, particularly if it is an older or inexpensive model. Although homebrewers usually include such a filter in their original design, the average ham probably adds a filter to his present receiver. But which one There have been numerous articles and circuits presented in the literature over the years. I have had more than thirty articles published on this subject alone The object of this article...