Other Radios And Accessories

BC53XLT-A Behren 10 chann * scanner S 11 4 95 AQi OO'A Plug n well cnar er for C55XLT 5 4 95 PSOOf A c gatelte i> gMe' caW ior BOSSELT S 1 * 95 VC001 -A Carrying caw for BC55XLT Si 4 95 BC70KLT A Saaxjr 20 channel scanne- S t 59 95 BCl 72KL-A Be tc i 20 channel scannet St34 95 SCI Af Searcar intormaiior scanner 'Tb CB S T1 3 SC310A-A Bearcat information Rad-o S 9 BC3 30A-A Bearcat Information Radio Si 04 95 UC102-A Regency VHF 2 Ch 1 Walt traneceivm J1U95 UC20S-A fleoancy VHF 2 ch 2 Walt...

Edi Ted By Linoa Reneau Kaukm

On Juiy 4 the Amateur Radio Experimenters group an Greenville, South Carolina, launched a balloon carrying several radio experiments from a site just east of Greenville. The group has been working with the Roper Mountain Science Center io involve the iocaf school kids in amateur radto, and a number of the kids attended the launch. The K4SAO N4LTA payload consisted of three transmitters 144.34 MHz FM with a voice ID (100 mW), 145.935 MHzCW(10 mW), and 50.086 MHz CW relaying temperalure lelemetry...

Ivp

By Joe Holman KA7LDN and Garth Hitchens KG7GA Advanced Electronic Applications, Inc. PO Box 2160 2O0& -196th Street Lynnwood WA 98036-0918 Tel. (206) 775-7373 Price Class 350 If you enjoy portable HF operation, need an antenna that can be quickly set up for emergency situations, or just plain live in an apartment or tight space that doesn't allow large antennas, AEA might have the answer for you, Their IsoLoop antenna is a 32-inch-square tuned loop antenna destgned to operate from 14 MHz to...

Info

* 1 year unconditional guarantee 30 day money back guarantee (Jess s h) on orders Irom MFJ * Free catalog * Add 5.00 s h (except as noted) WRIW have been a generally inactive ham tor 25 years because hams were, well, boring. With retirement I decided to become active. Now I find lhai some hams are malicious, too. Your editorials are rtghl on- Keep up the good worfc, Kevin Thomas, Louisville KY I hope I'm not the last of a dying breed, I've recently begun taking a course to help mi pass the test...

Hs

The increasing complexity of electronic circuits requires construction on printed circuit hoard material 0 er the years, many techniques have been developed for making boards quickly and efficiently. Unfortunately, the new ways have tell the project-oriented ham way behind because not all of the processes arc readily available. To answer the ham's need to be able to make neat, functional and reliable boards, I present the following process. In some respects. the process is archaic and slow, but...

Ground Plane Antennas

CK-MO-MOVISA Accepted ( MA add 5 sales tax) Ma-c t Leavey Af 0. WA3AJR 6 Jenny Lane Baltimore MD 21206 Someiimes mis column works almost too well A few months ago. I published the plea of Robert Dick K6YON who worried about the long-term health of his ROBOT BOO RTTY unit. Now. just as that request is being published, along comes the answer and. as Bob tells it, you'll never beiieve the source- It seems thai Bob mentioned to his wife that it was too bad that the ROBOT people had gone out ot...

Commodore Ham Programs

9 disk sides over 200 Ham programs 16.95. stamp gets unusual software catalog of Utilities, Games, Adult and British Disks. Home-Spun Soltware. Bo* 1064 0B, E& tero FL 33928 8NB917 BATTERY PACK REBUILDING SEND YOUR PACK t 48HR SERVICE ICOM BP2 BP3 BP22 T9 95. 9P5S25 BP . BPS S32.95. BP70 29 95 KENWOOD PB21 15 95, PB21H 21 95. PB25 26 24 95. YAESU FNBG Sl9 95 FNBlO 23.95 527 95. PNB4 4A S36 95. U-DO-IT INSERTS ICOM BF2 t7 50, BP3 S16 95. BPS 22 95 9F7 8 27 50 BP22 S 7 95. 8P70 25 95 KENWOOD...

International

Arme Johnson N1BAC T 03 Old Homestead Hwy N. SwanzeyT NH 03431 Time sure flies when you're having tun This issue is my one-year anniver Sciry writing the column ft sure doesn 7 seem tike a year has gone by The oD becomes easy when the 73 Hambassadors from around the world provide material that is ttmely and interesting l just put it into some semblance of order and language certainty have enjoyed tne past year and took forward to many morr Well. I dido't make it to Ireland this year out I die...

Al

Toughest ceramic transmit ting tubes the high gain 3CX1200A7. It has he durability of glass tubes and the power dissipation of ceramic tubes. 3CX1200A7 12 times tougher than the 3CX800A7 A 3CX1200A7 has a 50 watt control grid dissipation that's more lhan 12 Limes tougher than the delicate 4 watts grid dissipation of a 3CX800A7. Pair of 3-500Z tubes give you full legal output for . . . 1995 Want a pair of tough 3-500Z workhorses The AL-82 is the same al 82 amplifier as the AL-1200 4qQ5 except it...

Cjrcje On Reader Service Card

Photo B. The serv ice deportment at Alinco is furnished with the latest in test equipment. Photo CL Alinco has plenty of spare hoards for pans, and boards for swap-out in the event of a tough intermittent. Photo A. The Alinco crew, left to right Vice-President Mark Aforisato. Sen ice Engineer Ahmed Awad. and Sales Manager Gre Pear son KC6LSY. Photo B. The serv ice deportment at Alinco is furnished with the latest in test equipment. Photo CL Alinco has plenty...

Call Today For Special Quote

Cutting the trace pattern from the mask with the knife held at a low angle. Photo D Applying the etch resist on the copper with a brush. Photo D Applying the etch resist on the copper with a brush. Photo E. Etch resist on the hoard with he mask removed. Photo E. Etch resist on the hoard with he mask removed. Apply rubber cement to the copper on the board and to the back side of the paper mask (opposite the trace side). The rubber cement must be spread thin to eliminate lumps, but the...

Aero Data Systems

I, p OeOX93ZS LIVONIA , Ml 48151 (313)471-1787 73 Amateur Radio * September, 1990 67 JoeMoeil. RE. K0OV PO Box 2503 Fufterton CA 92633 For sensitivity, simplicity, and low cosl, you can't beat a quad antenna for radio direction finding (RDF) on 144 MHz and up. Home-brew quads give excelleni performance but they take some time and effort to build and, let's face itH sometimes their primitive ' look 5 not particularly pleasing on a carr Before a fledgling hunter can assemble his new pride and...

Circle On Reader Service Card

73 Amateur Radio September, 1990 45 Mike Byce WB3VGE 2225 Mayflower NW Masstiton OH 4J646 Last month we talked aboui the ins and outs ot VFO construction. This month we'll look al bu td ng a small VFO and some more details on good VFO construction In ORP operation, tne most common practice is lo run the VFO ai ihe same frequency as ihe Iransmitiei For this reason, we must have a stable VFO Of course, you need a stable VFO ai any frequency. ff you use some of The tips in lasi month's column, you...

Amateur Radio

R-L - L 1111 ' I I - 11 0JB65 The Beginner's Handbook of Amateur Radio 2nd Editon Combirvestlieory and practice in an easy-to-understand format, und provides inftirmation fr i choosm Hid installing radio receivers and transmitters antennas, tran.smission lines, and test equipment, Oi pages. 29 illustralions. S16.HI 10D090 - 1930 North American Calkbook Lists uvtir 500.000 licensed radic amatetirs ill all countries of Norlt America. Cives calls, names, ant addre ss i nfomtat ion. S2K. 0 Compiles...

Uniden

Uniden Corporation of America has purchased the consumer products tine of Regency Electronics Inc. for SI2.000,000. To celebrate this purchase, we re having our largest scanner sale in history Use the coupon in this ad for big savings. Hurry offer ends January 31, 1991. Get special savings on scanners listed this coupon This coupon must i ociuaers witti your prepa d orde Credit cards. personal checks and quantity discounts are included from this otter Otter vahd only on prepaid orders mat le d...

Sep

SANDiAPAPK, NM Fall Classic and Homebrew Radio Exchange. will be sponsored by the Classic Radw Newsletter, from 2000Z-0400Z Ouf object is to restore operate and en toy nomebre equipment and equipm m at least 10 yeaFs OW not required tor entry The same si at on may be worked multiple times with different equipment on each oand mode Frequencies Phone 3880 7290 14280, 21380. 28320 CW 60 kHz up from lower bandedge, Novice Tech 3720. 21T2Q, 28320 Most of he action is on 7060 and 3560 Add number Of...

Pf Kv

Jennings USLS-465-5 or equal VACUUM VARIABLE CAPACITOR, 7-465 pf 5 KV max. Gears remove for W'lx V dia shaft o a 5.5Lx 2.3 dia, 3 tbssh. Used 109.50 VACUUM RELAYS with 26 VDC coils Jennings or equal mfg, 2 lbs sh ttt Used __ RB3-2G, DPDT120 Ohm 12 KV peak 30 amps AC-DC. Threaded 1.1 dia base o a3.3H 1.3 dia RE-W, SPOT120 ohm 25 KV peak 25 amps AC-DC 2.3 dta mount ftange, osa 3,3Hx 3 dia 50,tifl DOORKNOB CAPACITORS, Central 850-Senes or equal 500 pf 5 KV, NEW 8.95 1000 pf 5 KV, Prices F O B....

Schees

Inexpensive alternative to industrial heat guns. A heat gun is a valuable addition to any elect ronikker's tool box. Its primary use is to form heat-shrink tubing over wire connections to today's miniature sockets and plugs, and for in-line wire connections. A closely related use involves the melting of solder preforms'1 lor coaxial connector terminations and similar connections. Carefully used and properly baffled, a heat gun can even be used to remove soldered-in components, This is one of...

Somerset Electronics

The MICRODEC multk mode decoder from Somerset Electronics decodes Morse Code, Radioteletype all standard shifts and ASCII. It comes with these standard features an intelligent, 8-segmenl LED dot matrix display with intensity controls an ASCII serial computer printer interface an internal code practice oscillator an internal speaker with volume control and simplified push-button operation. It operates on DC voltages from 9 VDC to 15 VDC. It can be powered by a car, boat or any type of negative...

Delaware

Factory authorized dealer1 Yaesu ICOM Ten-Tec KDK Kenwood AEA Kanifontcs Full line of accessor-es Koala tax in Delaware Ore mile c gt 1-95. DELAWARE AMATEUR SUPPLY. 71 Meadow Road, Mew Castle DE 19720 302 326-773fl. flo amp s WS7BYZ has he largest stock ot amateur gear m ihe iniemv gt unEain West and ihe besi pnces Over 9 000 ham reeled gear in sioc Gail us for 'ait y ur foam needs today ROSS DISTRIBUTING Co., 78 S State. Preston JO 83263 852-0830.

Npqk

QSL of the Month To enter your QSL, mail it in an envelope lo 73, WGE Center, Foresl Road, Hancock, NH 03449. Attn QSL of Ihe Month Winners receive a one-year Subscription or extension lo 73, Entries not in envelopes cannot be accepted. continued from p 70 'ZERO. Siabi iity of about 10 kHz over 24 hours was reported in one experiment The fcil Alan offers comes set for about 120 degrees F, but it can be changed or remotely set. instead of using a coil of wire as I did. Alan used a power TO-220...

Scopes

Gel very high efficiencies, Smatl transmitting loops have been around for quite a while, having been used by the army for portable operation in Southeast Asia, Ted Hart W5QJR de scribes the more recent versions in TheARRL Antenna Book . Whal is new about the IsoLoop is that AEA has used patented techniques to reduce loss without resorting to expensive techniques such as vacuum variable capacitors This has made the IsoLoop remarkably cost effective- The IsoLoop is primarily designed to be...

Mfj

MFJ has released a new 440 MHz antenna tuner, the MFJ-924, with a built-in SWR wattmeter. The MFJ-924 handles power up to 200 watts Its compact size B x 2Vz x 3 and wide impedance matching range make it an excellent choice for mobile and or base operation. It also features SQ-239 input and output connectors and a wing nut post for ground. The SWR wattmeter shows power on 30 or 300 watt scales and SWR. The MFJ-924 is priced at 70. Contact MFJ Enterprises, Inc., P,0. Box 494, Mississippi State MS...