Jt

Schema fc tor the 2 meter 16-ounce beer can cavity filter use only low power until you have thoroughly evaluated the filter, There should be almost no difference in meter readings with the filter in or out of the circuit. See Figure 1 for construction details.

Astron Power Supplies

BELDEN COAX (Performance not problems) 9913 low fqss, 50 ohm RG-3X (9258 50 ohm foam RG-213 U (8267) 50 ohm. Mil spec RG-11A U (8261) 75 ohm RG-8 U (8237) 50 ohm, RS-58A U (8259) 50 ohm RG-8 U (8214) 50 ohm. Foam. RG-59'U (8241) 75 ohm RG-214 U (8268) 50 ohm. double shield. Don't sellJe for less than the best Call us for Beiden. Solid 12 ga Solid 14 ga. & Stranded 14 oa Cut 1o your specs. Standards6-22 2-18) Heavy Duty(6-18.2-16) We stock Amphenol Connectors and Andrew HeJia*. Connectors...

Startek

The nine-ounce, pocket-size frequency counter model 3500 from Startek international, Inc., is the smallest instrument of its type lhat can measure frequencies from 10 Hz to 3.5 GHz. It has an eight-digit red LED display, a dis-ptay-hotd function, a one-megohm input impedance from 10 Hz to 12 MHz. and a 50 ohm input impedance from 10 MHz to 3,5 GHz. The user can select from three gate timest giving a maximum resolution of 0,1 Hz to 12 MHz, and 10 Hz resolution to 3.5 GHz. Internal NiCd batteries...

Info

Using the latest advances MFJ brings you 9 exciting digital modes aiul keeps on bringing > ou Male of the an advances like color SSTV You ions of features otherv ju t don't have Count em - you gel tun modes Packei, AMTOK. RTTY ASC1L CW. FAX SSTVt Navies jrcd Contesl Memory Kever You can t get all 9 modes in any competitive multi-mode Nobods sives you modes Ml J-127R doesn't have, Fnjtn the imest MFJ-127H breakthrough full color SSJ displav with an appropriate terminal program like MFJ-12 89'...

Haubs

Figure 4 Map of long-wire antenna at WJGV The wire runs iri almost a straight linet an important feature for obtaining the characteristic directional pattern. whole end insulator redone, and the wire pulled up again. Lesson Don 't think that a wire won V snap. 2. he wind biew the arrow off-course. Thus it did not catch the line in the highest part of the tree. Lesson Work when there isn't much wind (JO miles per hour or less). 3. The arrow didnt have enough weight on it, i wouldn't come down...

Spy On The Earth

See on your computer screen what 6 or more U.S+t Russian and Japanese satel* lites see. Make money many ways. Makes a terrific science project We manufacture and sell all the equipment you need In business since 1956. For complete details dial our electronic bulletin board anytime. 300-2400 baud. Modem configuration 8 bits. 1 Stop, no parity (7l8)-740-3911 Voice BAM-1PM (718H68-2720. Or send 10 for fantastic 5 disk program set for your IBM-PC. 196-23 Jamaica Ave., Mollis NY 11423 * UKracompaci5...

Nspa

I 8-150 MHz 140-525 MHz 1 & -l50Mh-z 140-5MMHZ 1.0-525 MHz 1,0 150 MHz 140-555 MH 0-1.5 kW'O 15 W 15 150 wn.5 kW 2U 20 0 W SO-239 50-239 type SO-239 SO-239 N type S0239 N type SO 239 SO-239 M MQBHEJBASE CROSS NEEDLE SWR POWER METERS MQBHEJBASE CROSS NEEDLE SWR POWER METERS CN -4 f 0M * CN-460M* CN-465M-CN-520 3,5-150 MH* 140-450 M Hz H 450 MHz 1 a eoMHz Frequency Conn c1ors Isolation Power Rating 500 MHz SO-239 + 60 dB 2 5kWP P IkWCW

Circle On Reader Service Card

Receive Weather Satellite Images and Charts on your PC w i I h Quorum's Totally Integrated and Affordable Weather Facsimile System jLjLirum in0T< biCcs the firvl toiaJK jrriegrjLed sysitn I for ihi rcceptii> n uf wether satellite images dirccdy on ytjur peruana computer Selection of HF NAFAX. GOES WfiTAX, OOESXAP* METJEOSAT jrJ MET tiOR APT (including elliTf Jo nFink frwpien s seieciLun) are maJe under cornpktc program control from your PC keyboard, 'I he to Idjrn jnd use lenu Jiiven pr nm...

My Gap Challenger

Lew McCoy, W1ICP CQ Technical Editor (March 90 Review) could actually hear signals that were in the noise on the beam. In my comparisons between the base-fed vertical and the GAPt the GAP consistently outperformed the base-fed antenna. Most of my reports were approximately one s-unit better with the GAP, One other surprise was that the GAP vertical was quieter less noise) than the two base-fed verticals* I would rate the GAP as a quality productt but even more important a good performer, *...

Aes Branch Stores

Fia. 32603 CLEARWATER, Fla. 34625 LAS VEGAS, Nev. 89196 ERICKSON COMMUNICATIONS 28840 Euclid Avenue 621 Commonwealth Ave. 1898 Drew Street 1072 N. Rancho Drive 5456 H. Milwaukee Avenue Phone (216) 585-7J88 Phone (407) B94-3238 Phone (813) 461-4267 Phone (702)647-3114 Phone (312) 631-5181 1-800-321-3594 1-800-327-1917 No Toll Free Line 1-800-634-6227 1-800-621-5802 using the Carolina Beam installed at a 50-feei height over average ground. I used ihe ELNEC program...

Controller

Finally a controller that has solved control and audio interconnect problems between multiple radios Your radio system can grow to multiple sites and stretch for hundreds of miles - and yet any radio can be fully controlled from any designated Input. Several years ago I had the pleasure of meeting Jeff Savasta KB4JKL at the Soxboro Ham Radio Convention in Massachusetts. Jeff is a police officer with the Suffolk County Police Department in Long Island, New York. He was intrigued with the stories...

Mfj T

The new MFJ-1278T Turbo gives you fast 2400 baud packet - twice the baud rate of any competitive multi-mode. By communicating faster you'J reduce chances for error lessen con* gestion and more efficiently utilize our ham frequencies You fl also get 1200 300 aaud for compatibility with older TNCs 2400 modem available separately, MFJ 2400, 569.95. New G3RUH compatible 9600 Baud modem, MFJ-9600, S109.95 and MSYS compatibility, fast throughput anu-collision technology, independent transmit level...

Baluns And Ununs

Available as do-it-yourself kits and packaged and tested units t Bs ur ns maicMrig 5C ohms io iftipeoances as as 3 125 orns arc as htoh as PX ohms f Specified eftcienoes 95 to 99 eM aing jpOfi impedance levels i Des gt g n amp q pi i rn zed for ba nd widfr eti i c i a ncy. impedance level and safety margins, i Powe' caiBgorifefi conservative raiingsi Low power 150 waits continuous Htgn power i KW lp 5 KW continuous i iB desgr krts ava sable m our 56 page riardbook i N ew des g n 5 _,vor opuc-st...

Hardline Matching Transformer

The ZD Engineering quo rtcr-wave matching Irgnsformor is designed to provide an occuruto arid broodbanded impedance match betwy to losi 75 Ohm CATV hardline c d a 50 Ofim load. In addition if provide a -sfiobta and inexpensive -r 'lod of crying iype Na SO-239conewtorv Me nhng ktiiifu iiiei i are bvft kr Ihe UkHHtA frs cnos- 44 MHi, 222 MHz, 4-40 MHIh 903 MHi, and 1296 MHt UniU below 200 MHz ore built wilh iype N or SO-239 connectors while oil others mi buill with type N only, Unih ore buill hi...

Ckassis

6 gt lt Brown W88ELK 73 Magazine Forest Road Hancock N H 03449 with a receiver haT tunes this frequency in tie-band FM mode can listen in o ihese signals the ICOM R-7000 and ihe ACE AOR-3000 has been used Photo A. The DAR A group m flates the' first batl On in front Of the radtoso de tai rtc r fattiityin Huber Heights, Oh q Photo A. The DAR A group m flates the' first batl On in front Of the radtoso de tai rtc r fattiityin Huber Heights, Oh q -'her laun- hingATV balloor e pen-ments, he careM...

Edited Y Linda Rene A U Kaukm

The ARRL has filed a petition with the FCC to request an Amateur Radio Service secondary allocation at 216-220 MHz. The massive, half-inch proposai weighs a iull pound. Comprised Of four sections and three exhibits, it is weil-documenied and impressive. The ARRL states that This allocation would provide re-accommodation for those present and future wideband data intercity links and other point-to-point fixed amateur stations displaced last August from the 220-222 MHz band as a result of the...

Shl

Wliy complicate your life when the simple things work so well The FT-26 76 handheld from Yaesu make your life simple. All the features you will ever 1 need Wide band receiver coverage on 2 meters FT-26 130-174 MHz RX 140-150 TX , FT-76 430-450 MHz TX RX 53 memory channels FT-26 available in 2 and 5 watt versions Four user-programmable power levels with FNB-27 Built-in Vox Built-in DTMF calling for selective or group calling Backlit display and front buttons Direct 12-volt operation with E-DC-5...

Ge Pexta

Toshiba A Mitsubishi parts for amateur. marine, and bu nt raoio servicing Partial Listing of Popular Transistors in Stock 25C 2503M w J24 60 ISC 2539 19.75 25C2559 15 25 2SC2W0 2425 25C2640 17 25C2641 17 70 2SC2M2 28 25 2SC3694 46,76 JSC 2695 31.75 2SC2782 37 75 2SC27 amp 3 5965 2SC2679 2V90 2SC237SWP 13 50 2SC29Q4 32 50 2SC29 i 34.SC 2SC3I01 12 25 40m ID 95 LOW HQ BE FIGURE UGF1302 795 U amp FuOi 1735 IftftfHI 1 SO MRF9M4 966 3 50 KE25137 35 074 KE41137 3SKIM...

Kenwood Performance Plus

Homemade Rotary Switch

PB-25 26 8.4V 900mah 85.00 PB-1 12V 1200ruah REMEMBER. A LOW COST POWER PACK WITHOUT PERIPHEX'S QUALITY TS NO BARGAIN Michael Bryce WB8VGE 2225 Mayflower NW MassWon OH 4464 Anienna tuners are easy to build But, I've always had the notion you could buy onecheaper than you could Dulld one Unless you nave a very targe junk box stocked with wide-spaced variablecapaci tors and roller inductors, you have to purchase all Ihe pans new. Have you looked up the price Of a roller inductor recently Talk...

1991 Radio Amateur Callbook

Do you have special requirements for your Callbook listing Would you like to include your nickname, the clubs you've joined, or the former calls you've held Do you have more than one postal address, say one in the summer and a different address in the winter Would you like to add a slogan to your listing, or include the many awards you've won All these, and more, can be accommodated In a Caiibook Special Listing, Just let us know what you'd like to have included In the 1991 Callbook, Special...

Spiro Manufacturing

Spi-Ro Manufacturing, Inc., now offers high quality ferrite toroids. rods, shielding beads, and split beads that are much in demand for various applications Discount prices are offered to amateur radio operators and experimenters. Some kits, concentrating on TVI-RFI prevention, and bafuns both voltage and curreni types , are aEso available. Kits start at 9 toroids begin at S1 each, and ferrite beads at 2.75 a dozen. Ask for a free information packet containing product listings, price sheet,...

Quantum Ham Battery

Any professional or serious amateur photographer is probably familiar with Quantum Instruments, For over eight years. Quantum has been the leading supplier of power packs to the photographic mdusiry, Their products have been proven to be reliable, whether It's a wedding photographer snapping candids of a radiant bride, or a news photographer slogging through the jungles of South America Photographers the worid over reiy on Quantum battery packs to supply full power in the field Quantum...

Other Radios And Accessories

XC365-A Uniden UII ra C fear Pi us Cord ass Pho SS 9.9 h CT7S5 amp -Al ndei SptakeTDncnecordiesspnore S109 9 SC55XLT-A dfld'Cdt 10 channel scanner 511 4 95 AOIOOA Plug m aii chflro r lor BC65XLT,. 14.95 P3001-A Cigarette lighter Cflhie for BC amp 5XLT . S 1 A.95 VCOOI -A Carrying case lor BC56XLT 114,95 BC70XLT-A Bearcat 20 channel scanner 159.95 BC142XL-A Senear 10 ch 10 amp and manner 384.95 BC1 47 XLT-A 16 ch 10 band scanner S94 95 BCi T2XL-A 9ejrc r 20 c . 1 h band scanne- S134.95 BCiTTXiT...

Circ Ie T On Reader Service Card

Has expanded to our new two acre facility and World Headquarters. Because of our growth, CEI is now your one stop source for emergency response equipment When you have a command, control orcommuni-cations need, essential emergency sup plies can be rushed to you by CEI. As always, for over twenty two years, we're ready, willing and able to help. Our R ELM two-way radio transceivers were especially created for government agencies. When you need to talk to police, fireT ambulance. or state,...