Mfib
a kiss interface or dumb modem, fast through Mailbox with soft partitioned memory so you and your ham buddies can leave messages for each other 24 hours a day You'll sec tomorrow's news today when you copy outstanding FAX news photos with en p clear details. MFJ-1278 is the oni multi-mode with a built-in multi-gw level modem. U lets you transmit and or receive multi-era level pictures with an appropriate terminal program. MJ JTs ntu uiomatic Si mil Analysis j ives you extlusivi Ih packet...
Startek International Inc
The Model AP-90 Arnplifier-Prescaler from Startek International Inc. can extend the range of any frequency counter capable of measuring to 16 MHz or higher, to 1600 MHz or 1.6 GHz. Two MMIC amplifier stages produce a superb sensitivity threshold of typically 1-5 mV RMS. The AP-90 also provides a 10-segment LED bar graph indicating the relative strength of the input signal. There are two overlapping ranges, 10 to 500 MHz divide-by-10 and 300 to 1600 MHzJdivide-by-100. A special panel mount...
Info Rzz
925 Sherwood Dr Lake Blufl, IL 60044 Motv-FrL 8-4pm 706 234-6600 This year the Tournament of Roses will have a super station' operator KC5GSD on ooard one of the ftoats. so be sure to tune in to 28.333 MHz and talk directly with the Stanon yourself. Alinco is working closely with David Cor glia WA6TWF to set up the right type of equipment lor this operation, so our signal into the remote base on UHF should be very loud and dear ' says Gordon West WB6NOA. CEassroom comments usually go like this...
Microwave Transverters
SHF 12 10 Co mple I e Trans verier SHF S YSTEMS Wo Iunc linear transverters jnd transvenor kits fot 902 1569, 1296.2304.2400,5456 MHr AH Lkg13 amp V Kits include mixer and L 0 PC boarcis, iclai ar d all components BuifT liiHU 'Xiyoe I F 0 0 sw htiostd ctxin- gt to ana compacl iow pietie hotaing Other frequency q ons f amaieur band svaAa amp e SHF 900K 902 906 MHt SOmW Kii amp l29 6j4S250 SHF 12CW 12 -12730 UtftL lOmW KitSlUO SMF2304X 2304-23 HM2 10m W KitSl95 SHF 240IK 2400 MHz ModeS rev Coriv...
Model Rss 1
-ifi.rrn v. f frimmii 1 itirtn Servie Du Gvcte 5min on 5 mi- offi Mississippi State MS 39762 Tel. 800 647-1800 601 323 5869 TELEX 53 4590 MFJSTKV Price Class MFJ-207, 100 MFJ-20S, 90 Have you ever put up a dipole that was pre-cut to an exact length for a specific frequency Did it work as planned Or, as in most cases, did you have lo make so many trips between the shack and the antenna to check the SWR that you wore a path across the lawn Suppose you had a portable device you could take out to...
Info Gzc
Continued from page 4 ters to retrieve a dropped antenna, . then run ning out of water on a desert island. Then there was the morning I worked W7IMW C7 in Tiensin, Chinat who was coming in S1 running 10 waits AM to a long wire on 20m. Wow Or the night I worked all Mates on 75rn_ Or the weekend I worked 100 countries on 20m SSB. Or operating JY1 from the palace in Amman. It was amateur radio thai got me into the Navy as an electronic technician and paved the way for me to a most get kffled a...
Info Rut
Figure I. Block diagram of the frequency standard setup. and the one-megahertz VCO .signal that provides the- unit s output. The one-megahertz VCO is one of a number of separate functions physically located on the 41 46 phase detector chip. The 4046 VCO is a well-enginhered square-wave RC oscillator with useful harmonies up through the shortwave bands. You can make it oscillate at an gt frequency from less than one hertz loovertuo megahertz by choosing the proper external capacitor, two...
Arrl
CALL 407 657-9052 FOR YOUR RESERVATI ON JVOttf The Orlando Amateur Radio Club P.O Box 547811 Orlando. FL 32854-7811 AL-811 linear amplifier gives you plenty of power to bust thru QRM. You get a quiet desktop linear that's so compact it'll slide right into your operating position - you'll hardly know it's there , until QRM sets in. And you can conveniently plug it into your nearest 120 VAC outlet -- no special wiring needed. You get three tough SUA transmitting tubes, extra heavy duty power...
Remove B
FILL W TH HOT GLUE OF E NAME Lt WIPE will have a rugged antenna assembly. With these dimensions, the antenna has less than 1.5 1 VSWR at 445 MHz, and less than 2 1 at 146 MHz. You can vary the length slightly if you wish to favor one band over the other, but you'll find negligible improvement in performance. In any case, performance will be significantly better than with the HT antenna alone, I have a converted CB rig in my car for 10 meters. Naturally, I wanted a small antenna for this rig,...
Interflex
Packet GOLD 1.2. a new software terminal program for the PK-88 and PK-232 controllers from InterFlex Systems, makes multiple connects easy, It uses a next session queuing system to take you to the next session with incoming text. With its continuous monitoring feature, you'll know what's happening on the channel at all times. Many functions provide additional support for muEtiple connects, including text search, cut paste facility and connected station list. Binary file transfers can be...
Signal Analysis
The first multi-mode to offer SIAM Signal Identification and Acquisition Mode was, of course, the PK-232MBX, Indispensable to SWLers, SiAM automatically identifies Baudot ASCII, AMTOR SITOR ARQ and FEC and TDM signals, then measures baud rate and polarity. Once the PK-232MBX is locked on1' to the signal, a simple uOK command switches to the recognized mode and starts the data display, You're even ready to transmit in that mode if applicable. The PK-232MBX makes SWLing easy and fun, not...
Info Mip
Figure 2. Installing and securing the coax to the mag-mount. Nibble a ' slot V deep in the larger pipe cap as shown in Figure Kb . Nibble a VA slot all the way down the side of the smaller pipe cap. Next, drill a W diameter hole in the center top of the larger pipe cap for the female BNC connector, and a 3 16 diameter hole in the center of the bottom of the smaller pipe cap for the 8 brass screw. Insert the brass screw so that its head is inside the pipe cap, then solder it in place, Be careful...
Your Tower
Are vou too careo or coo oia ro ctjmb Never climt again wuh rh s rower srxi eievara tram system voyage towers are t and 13 - cn 11 angjiar structires stac aD e o any fie gnt r- 7 1 8 5 4' or 10 section lengths. Easy to install hinge tiase. wa jD wecrKX'' Mext p jrno tower witn leveling txstts in base Mount rotor and targe hea lt r c rs Hazer tram aid .v cn one hand wtnen to too of tower for norma operating potion safety lode system operates while rating or lowering At last a cheap, convenient...
Qrx 1
Gordon KC40CA became interested in radio while grow ng up n Bermuda during World War II. A long-wire and Hailicrafter S-3B receiver kept him and his brother, Pete, informed on world events. Before long, they had raised an antenna farm among the cedars Says Barnes, hThe radio served as an educational device. This is how my brother and i learned about sports . . they were broadcasting into countries where our men were fighting, and knowing that many foreigners would be listening for the first...
Grv Antenna
u'lHV MULTIflANTJefl .TUPifi . an eiCSllortl -in biind J m li'.'fi il 11r-k- gt - On I MH aflll-'iri JTl V t i. tJ ih, Wj' I vfj. I n11 irid virncn ilh 1 u tr anda q o t-a Hh qn m i nj t hn JJ'MI,,-, II n, i.r.,n--ri ni .1 lyci ri i it gt i nni 3 ir -tOO KW ktirtr-jiiT lt int athimsfie nanco'Ort nil 1tiH ttmjmmH mtli 1 i m l' 1 Ii' i'lrt - -My ont anierii.d TPir-ri il n i l J r- in I pfi -up. 4f iny ridniL. P4FHA4 i l lt iL I J amp i gt i,- -, J-- - . Ij'n - M-5G oiuti ' 90M ' 77- lt 1 HG I...
Ic At
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J 1
WA6TWF K 0 REMOTE SYSTEM ELEMENTARY DiACRAM Figure 4. Block diagram of the TW F Super System. etc. The system, which runs on 12 volts DC, can be remotely programmed by touch-tone, packet, or modem. The Ultra Comshack 64 can use any FM radio as a primary input output device. A repeater is not necessary. You can use a simplex channel or a dual-band transceiver in a crossband mode. The Ultra Comshack 64 includes complete programming, but it's an experimenter's delight because you can custom-tailor...
Mfmt Ca
The new MFJ-1278T Turbo gives you asf 2400 baud packet - twice the baud rate of any other multi-mode By communicating faster you II reduce chances for error lessen congestion and more efficiently utilize our ham frequencies. You'll also get 1200 300 fraud for compatibility with older TNCs, The 2400 baud modem is atso availabie separately. Order MFj-2400, S6995, tor any MFJ and most other TNCs You get MFJ s one year No Matter What Guarantee, Thai means we will repan or replace your MFJ...
uniden
Uniden Corporation of America has pur chased the consumer products tine of Regency Electronics Intx for 12,000,000. To celebrate this purchase, we're having our largest scanner sale in history Use the coupon n this ad for big savings. H urry. offer ends January 31, 1991. Gef special aving amp on the scanners listed in this coupon. This coupon must be included with yoor prepaid order. Creditcards. persona chec SandGuari-tity tfpscoi nrs are excluded from this otter Otter valid only on prepaid...
CIRCLE ON READER SERVICE CARD Wsd
RravfytoUse fi FulJ Le at Power Faslest lasiil Touph No Lo amp sy Traps Coax Fced Flexible Low Soitc 3000 V nsuJ K Jt-Prasf Ncver Ccmxk Ftiiv AftKsMc4 nth T ft Sf M I amp Mircon AJjprcr Add Si HinJIiDg t ord tr Hei Li oc For lAfeptfc nd S 00-926-7373
Outbacker
Chester QSL Cards Dii Q a xmmm.a J Fill out an entry form at any of these locations. alfa a cen'ralwestrn cqum, 774745th street. edmonton. a3 ACKftAO SUPPLY 310MTHAVE S. .BIRMINGHAM AL POUNDERS true VALUE, aSloaOVERDALE ROAD. FLORENCE, AL MC DOWELL ELECTRONICS, m BELLEVILLE AVE. PO amp 0K 1206,0REWTON, AL HAM RADIO OUTLET, 17 W, CAMELBACK RD, PHOENtK, A2 A. L ELE TfiON OT.P.,9 5 VEAMONT AVE .LOS ANGELES,OA HENRVRADIO 20H SOUTHBUNDYDRiVE LOSANGELES,CA .W SELECTRONICS. tfl SEPUL VEQA BLVD. CULVER...
Reperter
USE ONE HHOIQ RMD DM Slfc' LEX FREQUENCY Tht S lt -piin fiiM a' uVn-Jitcrilj j amp cc-j and H uct 4 mmaq WUrt pi STO, SirtpHi Rwijwr 1 Ctt 4 Cmvr H Wi'l l .q n lo H3 fli-Hi'iy fiWd ' j'.1 r 1 being r co gt n f tr.fr tadp iwiu niwft conn led it to Wnwi m tarr.tr tjmpi ihc sra aie.f gt a r Riding, am h4y t ih f U Ptij aid wiirtuLv inp ft iTn ir tun HDcordM Th.i jii h'i 1 fro at mcKs n trt id HHVJI A tiirib ortvtf'paftqn, whur ih y v i m ra- t o cn a . u in rsrt t of rr gt imjsJ i nnil tta. Tht S...
Sarex
it is hoped that by the time this s printed, STS-35 will have completed its mission with Ron Parsse WA4SIR us-rng packet and voice from orbit Ron talked to the symposium attendees abouE the goals of Pus ght and the progress to date Lou McFatiin W501D brought the hardware for ihe Shuttle Amateur Radio Experiment SAREX slated for launch with STS-37 in the spring. Two ham astronauts on STS-37, Jay Apt N5QWL and Ken Cameron KS5AWP, were available to talk with symposium participants aboul ihe...
Spain
Woodson Gannaway N5KVB EA Apartado 11 35450 Santa Maria de Guts Las Palmas deG C. is las Can arias, E spans Helto again irom Ihe Canary Islands. I am very happy to provide a translation of an article printer in a focai newspaper about the hams in ihe province of Las PaJmas rrfie islands of Grand Canary. LanzaroLe, and Fuena-ventura Alfonso Hernandez, Presi-dem of ihe Union de Radtoaficianados de Espana URE , provides the narrative for the reporter. In the province of Las Palmas the islands of...
Mfib 1
MFJ-I270B super clone ol FAPR's TNC-2 skives you more features than fjirv other packet controller - tor 139.95 You can double your luri by operating VHF and HF he cause you e hi It performance swttchable VHF HF modems. You get he Easy Mail Personal Mailbox with sofi partitioned memory so sou and your budd es can leave messages 24 hours a dt - Iti MFJ's new WeFAX mode ou can print full fledged ueather maps to screen or printer and sa t to disk using mitst computers, neu vtSS interlace lets you...