Wbcpl

In the late afternoon of March 31st a tornado struck just east of Atlanta, Georgia, and on into South Carolina. Hardest hit was Conyers, Georgia. Within an hour of learning the extent of the damage, the Alford Memorial Radio Club declared their Stone Mountain Repeater W4B0C 16-76 closed to all but emergency traffic. A walkie-taikie was used in the Conyers City Hall to provide communications from the police, fire and city officials. Many emergency generators were available due to a recent ice...

Zip

Slow Scan Television Handbook, by Don C, Miller, W9NTP and Ralph Taggart WB8DQT. This excellent book tells all about it, from its history and basics to the present state-of-the-art techniques. Contains chapters on ctr-c u its, monitors, cameras, color SSTV, test equipment, and much more. 272 pages, softbound 5, hardbound 7. Digital Control of Repeaters, by Tom Yocorn, WA02HT. Here's a book for the FMrer who wants to design and buiid a digital repeater control system, Contains sections on...

Kee

All solid-state design Can be completely aligned without instruments 36-channel capability independent pushbutton selection of 6 transmit and 6 receive crystals 10-Watts Minimum Output designed to operate into even an infinite VSIVf without failure * Optional Tone Burst Encoder mounts inside, gives front-panel selection of four pre-settable tones The Heathkit HW-202 compares with the best wired amateur 2M FM rigs. Plus it has 36-channel capability via independent selection of 6 transmit and 6...

Fcc News

If you should need to report suspicious or improper radio activity, anomalous signals, or interference, contact the monitoring station nearest you, rather than the FCC in Washington, Address your report or complaint to Engineer in Charge, Federal Communications Commission, (name of city) Monitoring Station 'at the various addresses given below, listed alphabetically by city or town. The telephone number for each monitoring station is also listed. P.O. Box 89 Affegan Ml 40901 (616 673 2063) P.O....

Repeater Stations

Rule re f erence Section 97.41(f)(6) states thai the application shall include The hon onttji nd vertical fadiation patterns of the transmitting antenna as installed, with reference to True North I for horizontal pattern only I expressed as relative field Hrengih (voitagei or in decibels, drawn upon polar coo'dinate graph paper, and method of deternmnation of the patterns. 2. The ter n as installed rn (1) above does not mean that measurements (if required see below) must be made on the antenna...

Footnotes

Setting here each month, thinking of various items to write about DX and looking over a heck of a lot of notes etc. you come to the conclusion that it is impossible to tell you all about everything, this means I am sure to leave out something that quite a few of you would have liked to know or read about, but I have just a certain amount of space for these footnotes. I try to do what I can in the space available. It would be interesting to do a real tracking-down job on just how certain rumors...

L

Model HR-2M5 8 channel Transcan with signal search reception and 15 watts minimum output. 5319.00 Amateur Net Model HR-2A 6 channel transmit, 12 receive 2 Meter FM Trarsceiver with 15 watts minimum output. 229.00 Amateur Net Model AR-2 Amplifier boosts 2 Meter F.M output power 300 . Instant access to 144 frequency pairings with 20 watts out on the new HR-212 twelve channel 2 Meter FM Transceiver by Regency Power Output 20 watts (nom.) at 13.8 V DC Includes microphone, mounting bracket and...

Heathkit Electronic Centers

ARIZ, Phaenix, 272 * lft< M n School Rd CALIF. Aniheim, 330 E Salt Wd , E1 CtrtiloT & OOD Potrero Ave Los Afl(*le*T 2309 S. Mower SI . Pomona. 1555 Orange Gro ff Ave N Redwood City 20Q1 W< ddieiieid Rd . San Diego (La Mtuh 3363 Center Dr . wogdltntf Hills, 22504 vtn lur* BNd COLO, Denver, WO W, 3flth Ave COHH, Hartford (Avon), 395 Mam Si 44) FLA. Mjamj (Wialiah). 4705 W. 16th Ave, Altanla, 52S5 fioswe Rd tLL. Chicago, 3462-66 W. Devon Ave. Downers Grove, 224 Ogden Ave. IND. rndianapoliv...

June

What do you get a full 2 c990 qj watts output power with automatic deviation con- j jy trol. i> channel capa- bility with crystals in* t HJ HEK stalled for .16A76, .34 K Hh KaS .94 and ,94 .94. High M V jEHR performance receiver II kO HB with mechanical filters, ik JC and MOSFET from end. Built-in battery S r B If r meter. Compact 9 x 3 If JS x 1 7 8 size. Jacks for I A on 8 AA cells, ni-cad H battery pack or AC power H l Wm supply (optional). With fe Jm BI IB carrying case, less batteries....

Bottom View Nj

Now the most enjoyable, do-it-yourself project of your life-a Schober You'll never reap greater reward, more fun and proud accomplishment, more benefit for the whole family than by assembling your own Schober Electronic Organ. You need no knowledge of electronics, woodwork or music. Schober s complete kits and crystal-clear instructions show you -whoever you aret whatever your skill (or lack of it) - how to turn the hundreds of quality parts into one of the world's most beautiful, most musical...

Wavyoa

NPC I07tn pwr supply 2, 5AJ IPL Onan Gen,, No, 327886 NPC I07tn pwr supply 2, 5AJ IPL Onan Gen,, No, 327886 The Muskegon Area Amateur Radio Council reports the theft of the following pieces of equipment from their club station sometime during the week of March 12th Electro-Voice 641 mic on Astatic GN series stand, R.L. Drake R4B receiver SN 11578G, R.L. Drake T4XB transmitter SN 17801G, R.L Drake W4 wattmeter SN 8390, Swan 250 six meter transceiver SN Ft54806, and a Swan ac power supply SN...

Voice Commander

Full Solid State FM Transmitter-Receiver 132-150 and 150-174 MHz Size 9.5 x 5.3' x 1.7 1 watt output, .5 micro-volt sensitivity. High performance, completely self-contained two-way FM radio. Compact, lightweight, easify operated and hand-carried. Housed in high-impact, 2-section case. All external hardware polished stainless steel. Top section has transmitter and receiver modules, built-in mike and speaker, antenna, carrying handle, all switches and controls. Rottonn section has battery power...

Dx Representatives

Ltd. 178 Collins Street Melbourne 3000, Victoria Australia The Wireless Institute of Australia 478 Victoria Parade P.O. Box 36 Carlos Rohden Caixa Posal 5004 Sao Paulo, S,P, Bra si) Jim Coote 56, Dinsdale Avenue Kings Estate Wallsend Short Wave Magazine 55 Victoria Street London, SW1, England Irish Radio Transmitters Society 9 Wellington Street, Dun Laioghaire, Eire Wireless Services, P.U,Sukhadia, t 16, Shantinath Bhuvan, 427, Sion Road Matunga, C. Rly,, Bombay 9, India Tama...

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. Hallicrafter* FPM 300 SSB xcvr S480 Miida Digipet 60 counter with Digipet 160 converter 400 HR2JV1S 8 ch scanning 2m xcvr 15W 255 TME-H-LMU 16ch scanning rcvr 6 2 m 255 We cannot check into each advertiser, so Cavftal Emptor...

Free Standing Aluminum Tower

IIGHTWBGHT - RUST FREE - i ASY TO ASSEMBLE - HUGG D STRENGTH FOR TV - FM - HAM RADIO - INDUSTRIAL INSTALLATIONS - FIRE POLICE - MARINE - CS Anyone interested in a tower should consider the tremendous advantages of aluminum over steel towers. ELECTRONIC DISTRIBUTORS. INC p originated Antenna System H'packages1' over 23 years ago. These are RECOMMENDED matched systems designed to work together yet with flexibility to meet YOUR needs. Many other combinations available, of course. Weight - in...

Power Transformer With Combination Filament Winding

STANCOR F-6011 115 VAC 60cy input Secondary 350-0-350VAC 70 5.0 VAC 3.0Amps C.T. 6.3 VAC 2.5 Amps C,T, Mtg centera 2 7 Bfl 3 3 B SPECIAL 1.95 a STEP UP TRANSFORMER 292-5653F1 PRI 110 115 120 VAC SEC 2 0 270 VAC ft 650 HA Sealed k 5 Bn x T x 5 2,95 REGULATED POVEB SUPPLY 36 VDC at 1U Amp. Inputj.115V 60 cy All solid state, standard rack mount Mfg. by Sola for Anelex Corp Like flaw Cond. 19V x 5H x 13D, Wt. 65 Lbs 59 95

Tone Decoder

Once a simple repeater has been constructed and debugged it is quite natural to consider the addition of extra receivers, autopatch, etc. To graduate frorg the simple single receiver transmitter to a complex and sophisticated machine is basically quite simple. The basic holdup in my experience is a simple foolproof method of controlling extras in an advanced repeater from the car or base station. The first and most sensible method of remote control is of course in band signaling or tone...

An Ohmmeter For Solidstate Circuits

It might appear neither relevant nor timely to state that an instrument for making quick resistance-measurements is in-dispenable in servicing and development work. It certainly is true that the VOM and the electronic meter have been with us for many a moon. And look at the recent sophistications and improvements taut-band meters, VOM s wiih 20,000 2 per volt and even greater sensitivities, FET fronl ends 1 digital VONTs, etc. Quick resistance-measurements, indeed Where is the problem Have you...

Denver Lawsuit

Chuck WA0DNH in Denver is in the midst of something even worse than a cower suit. While the usual legal hassles involve farge towers equipped with multi-arrays, a lawsuit is being brought against Chuck because he recently erected a Hy-Gain 4 band vertical in his back yard. Chuck's lawyer is building a defense but is unfamriiar with cases of this sort. He IS in need of a vast amount of information so he can effectively protect Chuck and, in the long run, any Other amateur in the area who may run...

Micro Sstv Pictures

An adjustable carriage kit is available that enables owners of Robot cameras to focus on objects smaller than a postage stamp A variation of the fens extension principle, the modification lets you move the vidicon back from its original position at the rear of the lens to the proper distance required for close-up focusing. The kit is uncomplicated and installs in a couple of hours. The carriage mounts between the lens mount bolts and the two existing chassis holes at the rear of the case. The...

Touch Tone

Touch Tone Pad

Just about everyone agrees that the ultimate in FM operation is a hand unit that can be carried everywhere. If you work through a repeater with autopatch or Touch Tone controlled functions you could be missing out on half of the available enjoyment if you can't use them. An accessory Touch Tone pad is the answer, 73 recently ihad a pad installed on a KP 202 hand unit similar to the Tempo fmh by Waller Electronics in Chevy Chase MD. The job they did was superb. Almost looking like origi nal...

Returns

Collins Radio owns 57 per cent of a manufacturing and marketing subsidiary fonned in Japan. Collins Radio Co. of Japan Ltd., was formed with Kyokuto Boeki Kaisha Ltd. Far Eastern Mercantile CoJ of Japan. Initial plans call for production of communication products for maritime and amateur use. W.C. Hubbard, named vice-president and general manager of Collins Far East international operations, will be based in Tokyo. Mr. Hubbard was vice-president and controller of Collins. In Tokyo, a Kyokuto...

Fcc Action In Races Docket Case

In Report No. 8495, dated April 20, 1973. the Commission has ordered an inquiry into the feasibility of expanded operation of the Radio Ama teur Civil Emergency Service RACES , which provides for amateur radio operation during civil emergencies. A request by the New York State Civil Defense Commission NYCD , to expand emission privileges for amateur stations in the RACES program was denied. RACES s a radiocommunication service conducted by licensed amateur radio stations for civil defense...

Ed Juge Electronics

3850 SOUTH FREEWAY FORT WORTH, TX 76110 817 926-5221 2860 WALNUT HILL LANE DALLAS, TX 75229 214 358-4641 KELVIN HUGHES 822 10W 10 Channel 150MHz Solid State 149 CANADIAN MARCONI CMC 100W AMP 150MHz 12V Solid State . . . 119 G.E. ME 33 Mobile 150MHz 30W 6 12 Vibrator w acc . 89 MOTOROLA T43GGV Mobile 150MHz 30W 6 12V Vib w acc 89 COMTRON 960DC Mobile 150MHz 30W Solid State Rcvr 119 MANN COMM 235MAH Nickel Cads, Motorola amp Cook Pager 7 28710 Canwood Road Drawer M Agoura CA 91301 213 889-6666...

Viewer

Fig. 2, CoJor SSTV photos may be viewed directiy by using a crt for each color and joining the three images on a viewing screen via dichroic mirrors, methods varying from a simple lens mirror arrangement where you stack the two outer pictures onto the center picture, to the arrangement shown in Fig. 2, in Fig. 2, three electrostatically deflected lubes are slaved to one monitor. Taggart, WB8DQT, described this procedure in the July, 1972 73 Magazine, page 93. Electro magnetically deflected...

Linear Amplifier

Small but powerful reliable but inexpensive, this amplifier is another top value from Henry Radio. Using two 8874 grounded grid triodes from Eimac, the Tempo 2001 offers a full 2KW PEP input for SSB operation in an unbelievably compact package totai volume is .8 cu. ft, . The 2001 has a built-in solid state power supply, a built-in antenna relay, and built-in quality to match much more expensive amplifiers. This equipment is totally compatible with the Tempo One as well as most other amateur...

Conouc

Basic dimensions of the doubie-coax anten-na. least WW II days but then most transmitters had balanced outputs and a regular folded dipole was a more convenient antenna form to use. The basic dimension of the double-coax dipole is shown in Fig. L Note that the shield of each coaxial line section in the antenna flat-top is connected to the inner conductor only at the outer end of each section. The shield of each coaxial line section at the center of the antenna is not connected to the...

Laboratories

TV And Communications Antennas Since 1921 Asbury Park, New Jersey 07712 201 -775-7252 Clifford Klinert WB6BIH 520 Division Street National City CA 92050 Clifford Klinert WB6BIH 520 Division Street National City CA 92050 A hybrid design thai uses transistors in the low level stages for stability, and easily obtained tubes in the driver and final .sections for low cost Transistor transmitters are becoming very popular with amateur builders today. The low cost, very high frequency transmitting...

Hep Index

The new 1973 Motorola HEP cross reference guide contains over 43,000 isting of transistors, diodes and SCR's vith HEP replacements for each. Besides the 66 pages of listings, there is a complete catalog giving ratings, characteristics and base diagrams for each HEP device. Handy guide lines are given that will assist a beginner to select and get the most performance from HEP substitutions. The Cross Reference sells for 50d at most electronics distributors or from Motorola Semiconductor...

Resistances Are In Ohms

Schematic of the oseiJ ator and arnpii ier. tion was not attempted because of the current unpopularify of this mode on the high frequency bands. The Seiler circuil was chosen because of its reliability and excellent stability. The only critical component is the capacitor between the gate of the MPF-102 and the oscillator tank circuit. This capacitor should be just large enough to maintain stable oscillation. The coil used was about forty turns of number 30 wire on an Amidon T-5Q-,'...

Power

Midland, for years one of the top names in communications equipment, proudly introduces this sensational new 15-watt Amateur mobile. More power than most sets, it drives linear amplifiers to full output. And there s a low-power position switch for short-range 1-watt output. Instantaneous final protection circuit prevents damage from excessive VSWR. Receiver has multiple F.EX front end with high Q resonator filter, ceramic filters in LR-superb selectivity, sensitivity, and bandpass...