Tma

The first comprehensive 220 MHz FM transceiver TM-3530A-25 watts of 220 MHz FM-Kenwood style Features include built-in 7-digit telephone number memory, auto dialer, direct frequency entry and big LCD. All this makes the TM-3530A the most sophisticated rig on 220 MHz First mobile transceiver with telephone number memory and autodialer (up to 15 seven-digit telephone numbers) Frequency range 220-225 MHz Automatic repeater oftset selection-a Kenwood exclusive Direct keyboard entry of frequency...

Coaxial Dynamics

Coaxial Dynamics has introduced two new meters to their product line. The 83000-A peak-reading wattmeter features a measuring capability of from 0.1 to 5,000 Waits in the 2-1.000-MHz range with plug-in elements. The model 7600 field-strength meter offers high sensitivity, broadband operation, detachable antennas, adjustable gain control, and a large meter. Its frequency range is from 1 to 1.000 MHz. You can get additional information on these and other rf products The IECS-200 inter-ear speaker...

Test Any Scanner

Test any scanner purchased Irom Communication* Electronics ior 31 days beioru you decide 1 c i krttio it tr for any reason you are not completely salisiied, r tiirn it In original condiiion wiih all pans n 31 days, tor a prompt roiund (le s ipping hamjlinfl c harg B and rebai* creditsj L st price S499.95. CE price S31 7.95 12-Bandt 40 Channel No-crystal scanner Priority conlrof * Search Scan * AC DC Bands 29-54, 118*174, 406*512, 806-912 MHz. The Uniden 800XLT receives40thannefs mtwobanks....

Fql

HP-eiBi) SIGNAL GENERATOR 3 B GHZ TO Tfi GHZ, 0 1 MV TO 1V INTO 50 OHMS, CALIBRATE OUTPUT, INTERNAL. EXTERNAL PULSE Ott FM MOOULAl ION & G 52 SIGNAL GENERATOR 3 0 GHZ TO 7 6 GHZ M1USPEC MIlFTARV VERSION. AMEi AS MP616B HPA20A SIGNAL GENERATOR 7 GHZ TO H GHZr CAU BRAT ED OLTTPUT 1 PATERNAL EXTERNAL PUlSE. FM MODULATION W50 00 HP SaAWGNAl GENEPA1E)R. TO GHZ GHZ INTER NAL, EXTERNAL PULSE. SOUARE WAyE FM VOt Li LA7 iOTi -.A ePATFD OUTPUT. Hi W, TO 1 HP fta g'ial e p.atop gt 21 g'h-. GAj_i RATED...

Order Your Clocks Today

Fiortda itsKjflM iit Pita add 2.50 for arfeping Of rile IZ33K pDr Cisarwa r FIL 33675 receiled my moneys woj-fb with one issue ,** receiled my moneys woj-fb with one issue ,** aiivays sPop (o read CTM. even though mosi other magazines I receive fand wnte tor) only get ctf'SO'y ejammaljon u S A 515 00 tor t year Foreign 3S00tlandl S55.00 gir) Permaneni jil.S. Subscription S1DC 00 i 04 Sam 0r ve Birmingham, AL 35235 Ciaire Azza iruj 6 Muriel Road Chelmsford MA 01824 CM ARC shared the excitement...

Info

C64 VIC 2Q TRS-80 SOFTWARE FROM 1.99, CALL 1-800-843-6700 ' > ALLOW 2-4 WEEKS 0345J I FOR DELIVERY. CALL y NOW. QUANTITIES LIMITED IF ITEMS ARE SOLD OUT WE RESERVE THE RIGHT TO SUBSTITUTE M C VISA CHECK MONEY ORDER Photo C A 170-Hz-shift RTTY signal, as displayed by a scope. Com- Photo D. A 425-Hz-shift signal. The filters used have the same band-pare this with Photo D. width and gain as those used- been around tor years and is a standard with old-time RTTY fans. Amplifiers Q1 and Q2 are...

Glb

GL8 has also been busy, A prototype of a 9600-baud rf modem (modem and radio in one box) was on display. High-speed modems will be an important part of the higher-ievei networks we'll be seeing in the coming months. How fast can the radio port run is one of the questions you should ask when determining which TNC you want to buy. I expect to see many packeteers running faster than 1200 baud as soon as modems become available. GLB did not have a price for their modem, but said it should be ready...

Czechoslovakia

Rudolf Karaba (OK3KFO ARC) Gogol'ova r882 955 01 Topot'cany Czechoslovakia Annually In Czechoslovakia the best individual stations, as welt as those of radio clubs in the competitions on shortwave, are being phQtQ Q E< j 0K3BY (ex OK3TCA). one of Czechoslovakia s best OX evaluated, For the year 1983. the men following results were achieved Radio clubs OK1KSO 69 poinls OK3KCM 55 points individuals OK2FD 75 points OK2BHV 63 points OK1AVD 61 points The operators of radio club OK3KJF made contact...

MFJ

Inductor tuner that lets you run up tu 3 KW PEP ahd match everthing from 1.8 to 30 MHz. Designed to match thB new smaller rigs, the MFJ-999 Is the best roller inductor tuner produced by MFJ. Our roller inductor tuner features a 3-digit turn counter plus a spinner knob for precise inductance control for maximum SWR reduction, Just tafce a look at aTl these other great features Built-in 300 watt, 50 ohm dummy load, bullt-l n 4 1 balun and a built-in lighted meter that reads SWR atid forward and...

State

Joseph Nardo WD6R 231 Timber Road Atenbur < Park CA 91320 Want to light a fire under that snoozing group of old-timers you cali a club Want to put some fun back into ham radio Want free beer Read on. You are likely to hear some very strange transmissions if you are traveling through Southern California monitoring the WAfrQBT 147.285 .885 repeater. How strange .1 Here are three recent transmissions The music stopped the iady died. If you are near the Inn, you can see my grin, A man was...

Tty Loop

WA3AJR 6 Jenny Lane Pikesville MD 21208 A few months ago. I wrote about the trials and tribulations of a reader who wanted to put a TRS-80 Model 100 computer onto RTTY* At the time, I said that I had no helpful information available. Well, thanks to some others in the fraternity (non-sexist, of course), we have an answer Phil W6TUH passed along his thoughts on Model 100 RTTY through CompuServe. He said that he ts using his Model 100 with an HF rig (Kenwood TS-520S) via a...

Etters

My wife, bless her heart, let me talk her into getting involved in my hobby. Since I don't have the patience to teach a family member anything, I figured a radio club would be a good introduction. We chose the club at her piace of work t won't name names, but it is a very large electronics firm here and they have one of the oldest clubs in the state When the meeting started, they had the usual reading of the minutes and such. Then the subject came up that the ciub needed an item for its...

Arter W

Individual (noncommercial) _ 25c per word per word Prepayment by check or money order is required with your ad. No discounts or commissions are available Please make your payment to 73. Advertising must pertain to amateur radio products or services. No special layouts or positions are possible. All advertising copy must be submitted typewritten (double-spaced) and must inctude full name and address. Copy limited to 100 words, maximum. Count only words in text. Address, free. 73cannot verify...

Diploma Fracap

The Federation of Radio Amateurs of Central America and Panama (FRACAP) announces a beautiful diploma for radio amateurs and SWLs to raise interest in the member countries of Guatemala. El Salvador, Honduras, Nicaragua, Costa Rica, and Panama, Requirements are two-way confirmed contacts after August 16, 1985, any band, any mode, with each of the six countries, with amateurs who are members of a FRACAP radio club* The application has to be accompanied by the QSL cards or a GCR list verified by...

Sencore Zmeter

Sencore has introduced an improved version of its popular Z-Meter, the model LC-75 Z-Meter 2, The new instrument checks capacitor value, leakage, and dielectric absorption in half the time required by the earlier unit The Z-Meter 2 checks capacitors from 1 picofarad to 200,000 microfarads to 1 accuracy, with full autoranging, The distance to a break in a transmission line may be determined by dividing the transmission line's rated capacity per foot into the capacitance indicated by the Z-Meter...

Radio Amateur

Putnum KT2B H4 Burnhiift Rtxid Morris Plums V7 07950 Pete Putman completes the picture with an autopatch for his Piggy-Bank Repeater. Many of the readers who contacted me after the publication of my simple repeater-control project Piggy-Bank Repeater Project,73, JuneT 1984 expressed interest in a companion autopatch controller, hut ut a budge I price. The good news is thut your wait is over This article describes a simple DTMF touchtone711 controller that uses inexpen sive but reliable...

R Repeater Controller

Resultant fngineering has introduced the R-2000 microprocessor-based repeater controller. The R-20DD features an easy-to-use touchtone command language, over 30 user operations a voice synthesizer which responds to your commands with interactive messages, a real-time clock, onboard subaudibie-tone and DTMF decoders, autopatch. a mailbox and a bulletin board, two RS-232C ports, a watchdog circuit, and CMOS construction with battery-backed RAM, For complete details, contact Resultant Engineering,...

ICOM

I'll bet you didn't expect to see ICOM in the packet product list., did you Neither did L but on a waik past their booth, I spotted the words packet-compatible on the glossy tor a new 2-meter radio, the IC-28H. Tom Moore and Jim Newcombe up at ICOM in Washington state tell me that packet-compatible means that special care was taken in the design of the radio to ensure a quick transmit receive turnaround time They said they believe it to be on the order of 50 ms. Faster switching time is a good...

Lkk

Kenwood's TR-2600A and TR-3600A feature DCS Digital Code Squelch , a new signalling concept developed by Kenwood. DCS allows each station to have its own private can code or to respond to a group call or common call code. There are 100,000 different DCS combinations possible, Trj . TR-36Q0A pack big rig features k into the palm ol your hand. It's I really a 'handy handful' Optional accessories H TU-35B buiit n programmable MS-1 mobile stand charger PB-26 Ni-Cd battery SC-9 soft case with belt...

Costa Rica

Bengt Hallden TI48GA Box 999 3000 Heredia Costa Rica 73 International welcomes Costa Rica and Senor Hallden, who has been appointed by the directors of the Radio Club de Costa Rica to keep us all informed of amateur-radio events and developments in that country. Amateur radio in Costa Rica is definitely growing very fast, and licensing is increasing rapidly. HF as well as VHF traffic on the different amateur bands involve more and more Costa Ricans. The 2-meter band is the most popular, and...

Mjv

Fig, 77ie controland antenna-switching cir uitrx. Finally, a -9 V supply rail is required for the 1488 line-driver IC. This is generated by a dc-to-dc convener circuit based on 555 timer iC8. It buffers a 16-kHz square wave derived from C3 and drives a diode charge pump based on D4 and D5 lo produce the required 9-V rail. Transistor QI simply functions as a switch. Its job is to interface the 5-V CMOS circuit to the H- 12-V timer circuit. Construction is straightforward, with most of the parts...

Accessories

MO 202 FSK DATA MODULATOR, Run up to 1200 baud digital or packet radio signals through any FM transmitter. COR 2 KIT With audio miner local speaker ampiifier, tail amp time-out tamers COR-3 KIT with courtesy 1 beep AUTOPATCH KITS, Provide repeater auto-paichP reverse patch, phone tine remote control of repeater secondary control. CWID KITS SIMPLEX AUTO PATCH 65-D MOUL ROAD HILTON NY 14468 Phone 716-392-9430 Hamttonfcs1 ts J f gist nd trademift R144 R220 FM RCVRS for 2M or 220 MHz. Ot5uV sens...

Packet

CONNECT ALARM for the TNC 2 and clones Are yuLi uul of trie room when ajiOthei siation is trying Uj connect to you' A i juh ttEEP fRQW THE CONNECT ALARM LETS YOU KNOW WHEN SOMEONE i- TRYING TO REACH VOU WO S wtih the I APR TNC J PAC COW INC 2 and a E A PK 8 The i gt eet time is sc ew lfiv .jaiuSTabie from i a licno a second along 9 Seconal ts entirely inside the NC . criassi ta v lOu v. ie noohjfi LO TNC boa Furnished MTH TOD qujUK I C cornet seated rimoot Diezc O. e' sndii T Compete IT S1 e 69...

Edi Ted B Y Perry Donham Kw

THE FCC has taken positive action in the matter oi repeater frequency coordination. In a final ruling on PR Docket 85-22T he Com mis sion recognized he need for frequency coordination and included a definition of a frequency coordinator in Part 97. jn cases of co-channel interference, the new rule stipulates that a non-coordinated repeater has the primary responsibility for resolving the problem. The rule does not make coordination mandatory, so repealer owners in less populous areas can...

Mfj Hour Lcd Clocks

The MFJ 24 hour clocks make your DXing, contesting, logging ahd SKEDing easier, more precise. Road both UTC and local time at a glance with the MFJ-108, 19,95, duaf clock that displays 24 and 12 hour time simultaneously, Or choose the MFJ-107, 9.95 single clock for 24 hour UTC time. Botn are mounted in a brushed aluminum frahne, feature huga easy-to-see 5 8 Inch LCD numerals and a stoped face that maxes reading across-the-shack easy and pleasant, They are battery operated so you don 't hate to...