Mfjbb

Meters and 220 MHz 30 or 300 Watt scales. Also reads relative field strength M7G MHz and SWR above 14 MHz. 4 x21Ax3 in- 3495 WIFJ-1701 2195 MFJ-17020 MFJ- Selecl any of several antennas from your operating desk with these MFJ Coax Switches They feature mounting holes and automatic grounding o1 unused terminals. They come with MFJ's one year unconditional guarantee, MFJ-1701 34 95. 6 pos, 2 KW PEP, 1 KW CW, 1.8-30 MHz. 10x3x1 in. MFJ 1702B, 21.95 2 positions plus new Center Ground. 2.5 KW PHP, 1...

Ic Sa M Icsat

IC SAT 440MHrw TTFffT IC-4GAT 440MHz w TTHH H u si 1er Vibroplev Kamromcs Plus more . . . Thanks for your support. 1-800-426-2891 METRO (612)786-4475 2663 County Rd. I Mounds View, MN 55112 Super Minnesota Watts 1 -800-279-1503 radio parts that started it all When friends found I was interested in radio they siarted dumping old radios on me. I had a ball taking them apart and saving the pans. 11 Td only known that putting em up in the attic 'or 50 years wouid turn rhern mto solid golo 1 But...

Heart

11 Cummmgs Park Wobufn, Massachusetts 01801 (800) 226-4636 ( 17)932-4616 Geared toward the industrial customer the r targe catalog has all kinds ot parts, cases, production equipment, etc Many terns are available only in large quantities, but some can be had in singles This cai iog is worth it just so you can acquaint yourself *,th what s out there. P O Bo* 567 VanNuys CA91408 (800) 826-5432 They have crystal oscillators, linear and digital chips, RAMs. connectors, etc. They also have some...

Vector Control Systems

Vector Control Systems has released a new 16 x 16 x 1 electronic beam indicator Using a four-color custom-plotted great circle map (centered on your QTH)r the indicator shows your antenna's direction and coverage with a 5 degree resolution. A simple connection to any standard rotator control unit makes the beam indicator operational. The ad justable beam width indication is a special feature which allows you to match it to your beam's radiation pattern. The indicator is available in a...

Model

'ICS Intermittent Communication Service (50 Duty Cycle 5mm. or 5 min. off) The function of any DSP system can be described as follows The signal is acquired and converted to digital formi via an ADC (analog to digital converter), the digitized data is processed by simple fast algorithms, and the results are converted back into a usabie form via a DAC (digital-to-analog converter) or stored in memory. The foundation of DSP is Shannon s sampling theorem (you may have heard it before, but here it...

Mfjb

The best of aEI CW world's -- a deluxe MFJ Keyer using a Curtis 8044ABM chip in a compact package that fits right on the Bencher iambic paddle This MFJ Keyer is small in size but big in features You get iambic keying, adjustable weight and tone and front panel volume and speed controls (8-50 WPM), dot dash memories, speaker, sidetone and push button selection of automatic or semi-automatic tune modes. It's also totally RF proof and has ultra-reliable solid state outputs that key both tube and...

Reviews

A versatile HF transceiver with a d gita) difference N2GE 30 The Startek International Model 3500 Frequency Counter Speed, accuracy, and ease in a shirt-pocket onil WB9HRT A very economical vertical for 1017 meters WA4BLC Cover Tons of counters Cover photo by Larry Dunn Builc a h ei --ha t antenna see page 32

Qrp Transmitters Ham Receivers

Jam iho fun on ORP Thousandnol Ibese mlnl-niga have i> e ih sold and ions ol DX conrucis have peon made Imagme working Eastern EiifOpe with a transmit iy lhal's ham tadio at its besl1 TbaseCW rigs aretdeai mates 10 the oterwers al f ght They he* h o-pos4toi> va iaate crystal con rol (one pop4*r ORP XT At nclud-(-21. sne n ou f J and iu i-n a itf nna s tch Runs on vDC. Ajo ou rnatciW'5 case and tos set (or ttwne Ins vo look (Specify hand QflP 20 JO.JOorflO Matching esse A kuob set CORP iW

Kkc

We are happy to provide Ham Help listings free on a space available basis. To make our job easier and to ensure that your listing is correct please type or print your request cfearly, double spaced, on a full (8Vz x 11) sheet of paper. You may also upload a fisting as E-mail to Sysop to the 73 BBS Hamhelp SIG. (2400 baud, 8 data bits, no parity, 1 stop bit. (603) 525-4438), Use upper- and lowercase letters where appropriate, Alsoj print numbers carefully a 1, for example, can be misread as the...

Lcd

3 1 7H x 5 2 5W x 7 7 8D Wt. 21b lOoz. To Order Call 1 800 445 7717 In All 50 States and Canada 24 Hours a Day. Fax Orders 1-800-448-1084, 24 Hours a Day ACE Communications Monitor Division 10707 E. 106th Street, Fishers, IN 46038 Infi Voice 317-842-7115. Int'l Fax 317-849-8794. Service and Support Lines Mon-Fri 9a.m. to 9p.m., Saturday 10-4. EST MasterCard, Visa, American Express, Checks, Approved P.O s. & C.O.D. (add 5.00) Prices ana specifications subject to change. Over he past decade....

No Tuner Needed

If you install our aniennas correctly you wiU NOT NEED A TUNER Numerous customers ha we confirmed this fact. The secret is in our Special balun. It matches the low-impedance coax cable to the high impedance windom-lype antenna. All our antennas are available for use with 500W PEP or 2KW PEP power Reao at our safrshec customers say All > etters are held on hie Fred WBYFK on hts GD-92KW It wofks greai Nine bandsT no external turner Adrian KC4MTP on h.s GD-6.500W It is so simple....

Model Vsa Antenna Coupler

The Barker & Williamson VS1500A antenna coupler ts designed to match virtually any receiver, transmitter or transceiver in the 160 to 10 meter range (1.5 to 30 MHz) with up to 1500 watts RF power to almost any antenna, including dipoEesf inverted veesT verticals, mobile whips, beams, random wires and others, fed by coax cable, balanced fines or a single wire, A 1A bafun is built-in for connection to balanced lines - Series parallel capacitor conncction for greater h amnionic attenuation. II...

ICOM

BP-BH with 8 NiCad cells 26.00 BP-BH with 8 NiCad cells 26.00 Shipping & Handing 3.00 Florida residents must add 7 sates tax 279 Douglas Ave. Altamonte Springs, FL 32717 FREE CATALOG-DEALER INQUIRES WELCOME ORDER TOLL FREE 800*346*0601 FAX 407-682 4469 C.L Houghton WB6IGP San Dtego Microwave Group 6345 Badger Lake Ave San Dtego CA 92119 The basic filter covered last month was the most inexpensive filter available a Lin cart and a variable capacitor TNs month I'll continue to cover filters...

Info

1620 Radio Los Angeles

Figure 2 The break-in delay for the Argosy is determined by C40 in the AF-IF board. Michael Bryce WBSVGE 2225 Mayflower NW Massilton OH 44646 Several months ago, I mentioned using a 4066 IC for audio muting in the HW-9. This IC was put to good use by Paul Levesque KBlMJ It occurred to me thai many people who des-gn their own gear might not know aboul this very versatife chip. So, just what is a 4066, anyway Well it's a quad analog swiich. Basically, it s just four CMOS switches that can be...

T

The RBC-700 Repeater ControNer designed to uippon Repealer systems thai require multiple radios connected together it a site. The RBC-700 utilize 1 true 7 t 7 audit matrix vritch whieh aJliw several oottvemtr ns heiwccn ports .l ihcamc lime. In ihe HEiutnttian ahwe the T33 nnxJe upportirii z RepeaTer, 3 Duplexed LinLs tc dEffereni siTo, jrd 3 He mote biso. Ltoirt iitnple cumnn. uk. J u -cr could tic the Rcpc iicr and .1 Remote tu tine i ink. whih- the other l.intcs nre cornitiunicaimfi through...

Lmvba

Lisl price 423.33 CE price S289.95 SPECIAL 48 Channel St5 Watt Transceiver Priority RELM's new LMV2548B gives you Upto4 channels which can b .1 organized into 4 separate scan areas for convenient grouping of channels and improved communications efficiency With an external programmer, your radio technician can reprogram this radio in minutes with the PM100A programmer for S99.95 without even opening the transceiver A similar 16channel, 60 watt unit called the RMV60B is available for 489.95. A...

Rotator Comparison Chart

RjEATE is serious about long term reliability. The CREATE RC5 series rotators were designed with the serious D.Ver in mind. Three models for medium, large and ultra large antenna arra gt s arc available. Features of the RC5 series Cast and machined aluminum case Worm drive brake gearing Preset on 3 models ' Circular dial indicator Circle overlay available for U S A west - central - east Create CK46 Mast Bearing with strong anti-corrosion features also available.

Baluns And Ununs

Available as do-it-yourself kits and packaged and tested units Saijns and ununi matching 50 ohms tq rcp dances L- iov as 3 Otrm a a as rugh as 800 o'r.m. lt 1 Specified etticencies 95 to 99 'iJepentttng upon impedance-teweis 1 Designs optimized far bandwidth, efficiency, impedance-1e ei and safety margins 1 Power categories I conservative rarmgsi Low POA ' 150 iVatts continuOLis Hign-iK ' 1 KW io 5 KW oontinuDie 1 ifi tes gn a.a-iaote trom lt n-ir page r w designs Lipor teqti sl assymimg feas2...

Communications Electronics

Has expanded to our new two acre facility and World Headquarters. Because of our growth, CGI is now your one stop source for emergency response equipment. When you haveacommand, control or communications need, essential emergency supplies can be rushed to you by CEI. As always, for over twenty two years, we're ready, willing and able to help. Our RELM two-way radio transceivers were especially created for government agencies When you need to talk to police, ftre, ambulance, or state, federal...

Wnsd

Wayne Green II WGE Center Peterborough NH 03458 Andy MacAMster WA5ZIB 14714 Knight sway Drive Houston TX 77033 A decade ago. few would have relieved the day would comc when there would be so many operational amateur radio satellites that one could be above a station's horizon almost continuously Today we have 13. It you count the Russian space station Mlr gt with its 145,55 MHz packet BBS. we have 14 With multiple transponders on most of the spacecraft satellite chasers have many options...

Centkr

5730mm-j sftnafllonl jj w 10 Kepfalef Identifiers Coftlftt stations Sil Alums kririult 'T l mrtr gt Wntber V IjU ji-. Multiple language Enerke Kepfalef Identifiers Coftlftt stations Sil Alums kririult 'T l mrtr gt Wntber V IjU ji-. Multiple language Enerke Add l Rrcwdcd Nt im Voice to our system Or equipment. Yi ct vihcuhujunLL gt or multiple phrutes up to t minute in j, Natural Voic fs save J m Nun-Volatile i -Pmm memory. If I nii er is removed the recording u nut he Il gt m i II vunl your...

PR

44.95 64 95 89.95 126.95 179.95 249.95 4.5 3 Internal 0.1 Volt Max 3.125 x 4.75 x a.25 5 lbs. 7 5 Chassis Mount 0.15 Vo t Max 3.75 x 6.5 x 7.5 7 Ebs. 10 7.5 Chassis Mount 0.15 Volt Max. .4.5 x 6.625 x 7 625 10 lbs. 15 12 Chassis- Mount 0 15 Volt Max. 4.75 x 7.5 x 8.25 13 lbs. 25 20 Chassis Mount 0.15 Voll Max. 5.125 x 12.5 x 10.5 20 lbs 40 32 Chassis Mount 0.15 Volt Ma 7 25 x 12.5 x 10 . .26 lbs. 60 48 Chassis Mount 0,15 Volt Max 8.5 x 12.5x 10 29 lbs. lniermittant Communications Duty 50 Duty...