Swr Bridge Swr Ia
with dual reading meters. 1000 watts RF. 3.5-150 MHz. Reads relative power output. Available only hrc jgh authorized dealers. 305 Airport Hd Oceanside. Ca 92054 7141 757-7525 tarry N5LL handles the JO-meter and 6-meter FM positions from a relaxed perch just aft of the tailgate of a vehicle. enbach. Dee WB5VWX and Floyd WB5PFR found an old set of bedsprings, took it outside, propped it up, loaded a Ten Tec Argonaut into it through a tuner, and worked him on 10 meters, getting a respectable...
A Personal Test
Give the MFJ 494 Super Keyboard a personal test iighl in youi own ham shack. Order one from MFJ and try it no obligation. See how easy it is to operate and how much more enjoyable CW and RTTY can be. If not delighted, return it within 30 days for refund less shipping . One year unconditional guarantee. To order, call toll free 800-647-1800. Charge VISA, MC or mail check or money order for 279.95 tor MFJ 494 Super Keyboard, 39.95 for Mi J-53 AFSK module, 29.95 for the MFJ-54 Foop keying module....
Rtty Loop
Marc I. Leavey, M.D. WA3AJR 4006 Winiee Road Randallstown MD 21133 in all the years that I have been writing this column, i have always tried to Keep the tone light and cheerful. It is with some regret, therefore, that must alter the tone this month, as I begin with an obituary. Although not involved with amateur radioteietype at its inception, being only twenty-eight years old, this youngster played an important role in the introduction of new features in RTTY operation, such as selective...
Cde Ham Rotor For The Visuallyimpaired Operator
Corneli-Dubilier Electronics has produced a rotor system es pecially designed lor sighHm-paired amateurs The Ham-SP is a combination of the Ham-lV rotator and a solid-state control unit. All operation functions of the control unit, 360 compass dial, on off switch, and push-to-start button, are marked Usually as well as by Braille. To operate the system, the desired antenna dh reclion is selected by turning the large dial. The start button is then pressed. Electronic circuitry will automatically...
Japan Century Cities Award
Similar to our own 73 Magazine Century Cities Award, the Japanese version is sponsored by the JARL, requiring the applicant to make contact with a minimum of 100 individual cities within Japan. There are no further requirements and no stipulation as to band or mode. Endorsements are issued for each increment of 100 additional cities worked. Applicants are asked not to send QSL cards Prepare your lisl of cities in order of the city number. Though this may be confusing to someT it is best to...
Pb Radio Service
1950 E. PARK ROW ARLINGTON, TEXAS 7601D OPERATE your SYNTHESIZED HT fro y 13- hr D.C, sour - Auto, Truck, tight Mrcrift 12 or 8v system . Hone Power Supply STEWART'S He BATTERY-BEATER provides the proper REGULATED voltage for your rig and plenty of c rrentTor CONTINUOUS FULL POWER TRANSMIT All day travel t all eveningTTmpTerTet with NO QRT TO Rt-CHABGE HOT a bftttery charger but a HJIL POWER SOURCE with fused Circuit to protect your rTgl RUGGED ALUMIKIM CASE except ICOM unit is built into...
New Life for Old Klystrons
What Use a vacuum tube in this modern era of solid-state electronics Reading about Cunn diodes, Irnpatts, and other such exotic devices is fine, but with the exception of the Microwave Associates Gunnplexer, there are no complete solid-state oscillators available to the amateur 1 This became very apparent while I was trying to put together a receiver for direct reception of television signals from geosynchronous satellites at 37 to 4.2 GHz, A multi-stage oscillator-multiplier chain was ruled...
Winter Olympics Torch Run
Editor's Note fn the May, 1960, QST, one participant's view was presented of amateur radio's part in the Winter Olympics Torch Relay Run. Due, in part, to more detailed explanations of the project's complexity and the many amateurs' responsibilities, we believe the story presented here fends a different perspective to and perhaps better captures the spirit ol involvement of all those who had a hand in this historic event. Amateur radio made important contributions last year to the Olympic...
Info Rav
Fastest selling MFJ tuner became it ills the most wanted features at the best price. SWR dual rrnifie wattmeter 300 amp 30 waits full scale, forward and reflected power . Sensitive meier measures SWR down to 5 watts output. More flexible antenna switch selects 2 coax lines. direct or through tuner, random wire balanced line, or tuner b pass for dummy load. 12 position efficient airwound inductor for Built-in 4 1 halun for balanced lines. tOOOv capacitor spacing. Matches everything from 16JI-10...
Alaska
Wateguhdr it cvhjuial ii Uiwavt' cumporailK fir equipment- Laboratory grade tot lt amp ttli-merits, p xr supplies Htiv, tl Si inde nil popular malees, III1, Git lrSL Sorenwti. Sin hit, U eel runic Kcsearch Lab ., 1423 Fern Ave Cunden NJ MKItM. .MI-42 H1. Eipcrimartrfs patadbc Electronic antl rnecku iica components or computer pwipir, uudJo peoplt hiims, robot billig, expEli menters, Opon sa. days a tiredft Calewav Electron it-. Corp 283B V. 44lb Au' Dtnvrr CO Quality Service, reasonable rutes,...
Connect Only If Optional Gatf Connection Used 1
Tig. L Capacitance checker schematic. pulses can pass during the time interval of that flipflop pulse. A combination of clock frequency, charging voltage, series resistance, and trigger point is chosen so that one clock pulse passes for each 1 pF in the low range, or one clock pulse for each 1000 pF in the high range. With this arrangement, our counter gives a direct capacitance readout. The capacitance measurement must be synchronized with the count interval of the frequency counter See Fig....
The Vocom Antenna Dept
Elsewhere in Hlinols there exists a company that calls itself VoCom, and they have a rather interesting product. It's a 5 8-wave gain antenna that co-lapses to 81 and is designed to be used directly on a hand held fitted with a BNC-type connector. II became interested in this product after moving to our new home, One thing to mention on my new home While set in a beautiful canyon, 1 actually purchased a 70,000 dead spot1 that came complete with llCC amp RsM which prohibit any outside antenna...
The Practical Handbook Of Amateur Radio Fm And Repeaters
Anyone who regularly reads Bill Pasternak s Looking West column in this magazine un doubtedly will have more than a passing interest in his new book, The Practical Handbook of Amateur Radio FM and Repeaterst written with Mike Morris and published in 1980, at 9.95, by TAB Books. Actually, anyone who has more than a passing interest in FM and repealers will find this book a valu able addition to his technical library This 538 page volume is more than Just a practical hand book it s a complete one...
I Kfd
Use your car's AM FM antenna for youf 2 meter mobile rig Eliminate the two-antenna tip-off to thieves, without the nuisance of hideaways. Save the cost of a 2-meter mobile antenna, AT-200 tunes from the front panel for maximum output, minimum VSWR 1,2 1 or less for mosl car antennas . Made in the USA by Barker amp Williamson, Inc. The PSVS preamp module covets trie entire range front 1 M Hi to I GHz 11000 MHi Perfect for the new GH.1 counters and higher UHF bonds. the tremen dous bandwdth oi...
J Fgj
Fig 2. Semiconductor function voltage-variable capacitance characteristics test setup. goes Jowr the counter is ready to courrt pulses IC1 b goes hrgh and starts charging the unknown capacitor through R1 or R2 The flipflop formed by ICIc and IC1d was reset to a low output when the gate was high. Now its output changes to high after the time delay of charging the capacitor up to the flip-flop changeover point. This time delay is directly proportional to the capacitance value and is the basis of...
Mfj Deluxe Rf Preselector Ii
An unusual combination of accessories in one cabinet has been released by MFJ, a company noted for their large catalog of accouterments for radio communications. The new 1040 Deluxe Rf Preselector IF houses both a flexibly receiver preselector and an adjustable-delay relay to protect the delicate circuitry when used with a transceiver. Very thoughtful and very effective. Designed with applications agility in mind, the 1040 features at least 20 dB of preamplifier tion. More important, the 1040...
Info Wjh
8 3. But avid DXers also have many other picturesque terms for list-takers. 9 2. Ever get the feeling there s enough royalty in ham radio to form a club 10 1. More royalty King Hussein held this Iranian call before Khomeini. Ayatollah you so 1 True His call was EP1MP. Guess he's EP1MP SU now. 2 True And he was listed in QST as a Silent Key. 3 True The more realistic DXCC, 4 True KA2BO would be one of the ,lU.S. Personnel in Japan.1' KA2BQV would be an amateur in New York or New Jersey. 5 False...
SI Mqk
Nice precui pcitu ol vrirtrk lut r m Shnnh 10 fc Graul ror ypucti. 50 tl 00 M04ij Jlr dT f mdLjl .rtiw nof hy T4 pifi fr I -WO
Save on
world's largest distributor of radio scanners, welcomes the addition of the Fanon SCMA-6 accessory to our product tine. This useful accessory mounts in your car and makes your Fanon Slimline scanner work like a high priced mobile receiver. A new product made by Electra, the Freedom Phone' is now available from CE, This is the ultimate cordless extention phone that can make and take your calls. We give you excellent service because CE distributes more scanners worldwide than anyone else. Our...
The Arrl Opera Ting Manual
The ARRL Operating Manual, recently published, continues the League s tradition of supplying the ham with some of the best book bargains available today on the subject of amateur radio. Inexpensively priced at 5.00. this large format, paper-bound edition a compendium of up-to-date information on all phases of amateur radio. What the League s Handbook does for the technical aspects of our hobby, the Operating Manual does for the stylistic. In short, it can help almost anyone become a better...
M Vku
For your TRS-80 send amp receive CW I RTTY TftS-90 it o iroMfTKlfft Tartly CofpofCtlon Auto Send amp Receive RTTY amp CW Connects to TRS 80 User Pod amp Kev Jieoa phone 5 ' er3C a, Autoira 10 message memories 255 char, ea Uses tmiltin PLL or external TU includes hardware. cassette amp manual Morse tutorial 10 lessons-corrects mistakes simplest, fastest way to learn the code 1125 N. Golden State Blvd Suite G Turlock, CA 95380 fS 209 667 2888 634 8388 hfVf at 9tp tnncing prwne a heuM . trfinq...
Rf Transistors
We can supply ar,y value chip capacitors ypu may neeC
Info Rtz
Our new crop of tone equipment is the freshest thing growing in the encoder decoder field today. All tones are instantly programmable by selling a dip switch no counter is required-Frequency accuracy is an astonishing J Hz over all temperature extremes. Multiple one frequency operation is a snap since the dip switch may be remoted. Our SS-32 encode only model is programmed for all 32 CTCSS tones or all test tones, touch-tones and burst-tones. And, of course, there's no need to mention our jjHB...
O
joe Wesfef baver W4Ft C 155 Wood fie Id Drive Auburn Ai 36830 This seven-digit capacitance meter will allow you to accurately check the capacitance of almost any capacitor quicker than you can read the printed value. t also shows leaky capacitors and the polarity of polarized capacitors It covers 2 pF to999 uF in only two ranges and consumes almost no power All this for only 1.28 tlCs-46 1 diode Ibi, 5 resistors There must be some catch of course, there is. You must already own a digital...
Ham Help 1
I am in need of a schematic for a Micro-Z FM36 frequency counter with prescaler. will be glad io pay copying costs and postage. Dennis L Cornell WD4HRO 7835 Captain St. Simon Langton Grammar Schools In Canterbury, England, are celebrating the centenary of the founding of the school In 1881. To this end, we shalt be operating a special events station, active on all HF bands under the call GB4SLS, on February 2228.1981, During this time, we are anxious to contact as many past pupils of the school...
Triokenwood Communications Inc
1111 WEST WALNUT 1 COMPTON, CA 90220 Processor, N W switch, IF shift, DFC option An incredibly compact, full-featured, all solidstate HF SS8 CW transceiver for both mobile and fixed operation. It covers 3.5 to 29.7 MHi including the three new Amateur bands and is loaded with optimum operating features such as digital display, IF shift, speech processor, nar row wide filter selection on both SSB and CW , and optional DFC-230 digital frequency controller. The TS-130S runs high power and...
Murata Ceramic Filters
TEST EQUIPMENT - HEWLETT PACKARD - TEKTRONIX - ETC. Hiwittt Packard 491C TWT Amplllief 2 to 4 Gc 1 watt 30 dfi gain 608C 10 mc to 4H0 mc I uV to.SV inio 50 ohms Signal Generator 60HD 10 to 420 rnc i uV to.SV inio 50 ohms Signal Generator 612A 450 to 1230 mc 1 uV to 5V into 50 ohms Signal Generator G14A 900 to 2100 mc. Signal Generator 61GA I B lo 4.2 Gc Signal Generator GlGB 16 lo 4.2 Gc Stgnal Generator 6iifA 3 8 10 7 2 Gc Signal Generator 6IBB 3 8 to 7.2 Gc Stgnar Generator G20A 7 to 11 Gc...