Glb Model Tnca

Jut ft n you mougiii 7 APfl TNC-2**s ts a f-iimi oi ire pas GLB tftc - -s CO*n J r.eJxs' ot Pa ei Coo- LE is now lhe eicfuszv* supplier ot TMC-2 Kits omm rcB Pk*v-nullalo. NY 14324 71G-G75 6M0 S to 4 Michael Bryce WBSVGE 2225 Mayflower JV, Wt Massiito* OH 44646 Plug your shack into the sun Here are complete plans for energy independence. Photovoltaic electricity is rapidly becoming the technology of choice for powering amateur radio stations. With the price of photovoltaic panels falling, large...

Ham Trader Yellow

SHEETS, in our 24th year Buy, swap, sell ham-radio gear. Published twice a month, Ads quickly circulate no long wait for results. SASE for sample copy, 10,00 for one year (24 issues). PO Box 2057, Glen Ellyn IL 60138-2057. BNB412 DIGITAL AUTOMATIC DISPLAYS for FT-101S, TS-520S, Collins, Swan, and all others. Six 1 2 digits. 5* wide by 1-1 4 high metal cabinet. Send 1.00 for information and receive a 25.00 discount. Be specific. Grand Systems, Dept. A, PO Box 3377, Blaine WA 98230. BNB423 BIG...

Hamtronics Adds Lowband Preamps

Hamtrontcs has added low-band units to their popular line of GaAsFET prearnps. Typical gain is 22 to 28 dB with a typical noise figure of .8 dB, The preamps are small enough (1x0.6*) that they may be installed inside most radios connections are made by sotdering subminiature coax directly to terminal pins on the preamp PC board Models available are LNW-28 (25-35 MHz), LNW-50 (35-55 MHz), LNW-75 (55-90 MHz)T LNW-100 (90-120 MHz), LNW-144 (120150 MHZ)t LNW-160 (150-200 MHz), LNW-220 (200-270...

Mhz In The Uk

1986 undoubtedly will be the year of 50 MHz in the United Kingdom. 1 have already reported the release of the 50-MHz band to UK amateurs following sterling and lengthy efforts by the Radio Society of Great Britain (RSGB). The Society is rightly proud of its efforts in this area on behalf of the UK amateur population, losing no opportunity to let everyone know. The January 1996 edition of Radio Communications, the Society's monthly journal, contained a six-page special on 50 MHz together with a...

Info

To program a memory channei you must first determine the reception mode (narrowband FM, wideband FM, AM). After you've determined this, you press the manual keypad then press the NFM (WFM or AM) key and enter. You then punch in the frequency and press enter. At this point you may think youVe done, but you're not. Instead, ail you've done is programmed the scratch pad memory You must now put it into permanent storage in dynamic RAM, To do this, you must press +iCHTh for channel and enter the...

Wabash In

The Wabash County ARC will sponsor The Indiana Hamfest on Sunday, May 18, beginning at 6 a.m. (setup time Saturday afternoon and evening), at the Wabash County 4-H Fairgrounds in Wabash, Ind. Overnight free parking for campers tables available. Exams for Tech through Extra, 8 a.m. until noon. Admission will be 2.75 in advance, 3.25 at the door. Talk-in on 147.63 .03, 146.52 52, and 146.94 .94. For more information, contact Donald Spangler W9HNO, 235 South-wood Drive, Wabash IN 46992...

Th Anniversary Fair Lawn N J Arc

The Fair Lawn ARC will operate the Club station under founding-member Frank Leonard s call, W2NPT, to commemorate the 25th Anniversary of the club. Operation wifl be from 1300 to 2200 UTC on the 7th and from 1400 to THE FORMULA FOR TWO METER DX MTT144 28R + MML144 200S VUCC Working the two meter band on all modes is a snap with Microwave Modules. Our complete line of transverlers. receiving converters and solid-state power amplifiers make it possible Now, you can work SSBt CWT FM or AM with...

Ari Italian

INTERNATIONAL CONTEST Starts 1600 UTC May 17 Ends 1600 UTC May 18 The object of this contest is for worldwide amateurs to contact Italian stations, including San Marino, Vatican City and SMOM. Use all bands 160 through 10 meters, Operator classes include single operator CW, SSB or mixed modes, multi-operator single transmitter, and SWL. Multi-operator stations can use both C W and SSB. RS T) plus QSO number starting with 001. Italian stations will send a two-letter province instead of the QSO...

Ishmod Outrage

My subscription to 73 just expired and I'm glad. I feel that 1 have wasted money on the last 18+ months of my multi-year subscription. I used to look forward to receiving 73 every month, but not anymore. Almost two years ago, in the April issue, an unfinished article appeared in 73, entitled 1sl> mod's Journey * or something like that Ishmod's Journal, April, 1984). It was continued to a nonexisting page, You pulled the same stunt in last April s issue (which I received a few weeks prior to...

Boulder Co

The Rocky Mountain VHF Society will hold its annual spring Ham Radio & Computer Swap-fest on Sunday, May 4r from 9 a> m, to 3 p.m+t rain or shine, at the Boulder National Guard Armory, 4750 N. Broadway, Boulder. Admission is S3 per family. Flea market, technical seminars, demonstrations, and free HT testing (spectrum analyzer, signat generator, power meter, frequency counter, and 12-volt power supply available). No extra charge for sellers some tables available, Snack bar. Talk-in on the...

Athens Oh

The Athens County Amateur Radio Association will sponsor its 7th annual hamfest on Sunday, May 18, in the City Recreation Center on East State Street, from 8 a.m. to 3 p.m. The focus will be on the use of computer technology in ham radio. Packet-radio demonstration. Outdoor paved flea-market space free for tailgat-ing or your own tables indoor space by reservation only through Sam Stewart KA8NIE, 116 Franklin Avenue, Athens OH 45701 614 592-5330. License exams for all levels. Walk-ins accepted....

Regency Mx Scanner

Regency Electronics has announced a 25-550-MHz continu-ous caverage scanner. The MX-5500 covers all standard VHF and UHF bands, including four amateur bands 6, 2t 1-1 4, and 3 4 meters . The scanner is preprogrammed at the factory with 20 popular frequencies and is capable of searching through a band for active frequencies. Designed for home or mobile use, the MX-5500 comes with a telescoping whip antenna, an ac power supply, a dc power cordt and a mobile mounting bracket For compiete details,...

Add Voicegated Squelch

And adjustable audio filters to any receiver. Squelch-It PCB 49,95, Shipping 2.50. SASE for information. JABCO, R1 Sox 386, Alexandria IN 46001. BNB437 Stop Scan stops the scan on busy chanreis. After they clear, scan continues automatically Reviewed 73 2 85 19,95 assembled 29.95 . Shipping 2.50. JABCO, R1 Box 386f Alexandria IN 46001, BNB438 NEW Spectrum Analyzer Monitor Receiver kit 60, Send SASE for details. Science Workshop, Box 393, Dept. 73. Bethpage NY 11714, BNB440 MARCO Medical Amateur...

Os

PC board, foil side, 52 73 for Radio Amateurs May, 1986 Fig. 6, Component placement. Fig, 7. PC board, foil side, 52 73 for Radio Amateurs May, 1986 necessary, place a 1-megohm pot in series with the 47-pF capacitor. Adjust the pot until the meter barely reads with no signal input. Then measure with an ohm meter and pui in a lixetl value as close to the measured value as possible, 10 tolerance is sufficient 52k was measured on the ICOM . In the ICOM 4A , the...

Edi Ted B Y Perr Y Donha M Kw

THIRD-PARTY TRAFFIC sent via packet radio is legal, at least for the time being. Last month we reported that the Federal Communications Commission had nixed using auto-forwarding systems to transmit third-party traffic. The FCC, in effect deciding that the medium by which a message is sent is not important, stated that a control operator must be present every time a third-party message is passed. The FCC has granted an ARRL Petition for Extraordinary Relief which will allow store-and-forward...

Mgdr

Fig, 6, The rationale for trapezoidal-wave operation of ac motors, a Setup for monitoring motor current reveals hat it tends to be trapezoidal even though square-wave voltage is applied to motor, b fnsteati of relying upon motor inductance to strip higher harmonics from the square wave, a snuill external inductor can be used, c For small ac motors, an L-sectton low-pass filter can be a cost-effective way of ensuring that the motor actually sees a near-sinusoidal or trapezoidal wave, November...

Kenwood

Display panel shows CW VBT, SSB slope tuning, as well as frequency, time, and AT- 940 antenna tuner status, Low distortion transmitter Kenwood's unique transmitter design delivers top quality Kenwood sound, Keyboard entry frequency selection Operating frequencies may be directly entered into the TS-94QS without using the VFO knob, QRM-fighting features. Remove rotten QRM with the SSB slope tuning, CW VBT, notch filter, AF tune, and CW pitch controls. Built-in FM, plus SSB, CWT AM, FSK Semi or...

Crystals

Use this map to match the channel number to the appropriate rf collector caiL Fig 4. Final amplifier and driver stage tuning adjustments The receiver requires crystals in CR-78 U holders. The receiver crysial frequency should be the desired frequency plus 455 kHz. 1 he transmitter requires crystals at the operating frequency in CR-89 U holders. For hose of you with the Delco 530 , some, if not all, of these sets use CR-7S U holders for both the receiver and the transmitter. Check the pin...

Ox Howto From Tab Books

Regency 5500 Scanner

Niques for Radio Amateurs is a new book co-published by the American Radio Relay League and Tab Books. Author Eugene Tilton K5RSG gives advice and how-to tips on all facets of DX and DXing, including how to bluff successfully, how to work the DXCC Electronics courseware now available from Sams 18 73 for Radio Amateurs May. 1986 The Regency MX-5500 25-550 MHz scanner. The Regency MX-5500 25-550 MHz scanner. fist systematically, and how to stalk rare DX Tilton explains the special techniques used...

Model As A

SSI 201 DTMF Receiver Receive all 16 DTMF digits No additional filtering Output BCD or hex format Low power 29 ma 12V Kit includes 3.58 Mhz crystal, 22 pin iC socket, resistor , capacitors, data sheet and schematics Module installs inside the radio in 10 minutes Boost audio to nearly one watt Low power drain 4ma stand-by CompEete step-by-step instructions included Corrects the LOW audio problem Drive externat speakers to full volume, even signals with low deviation

He

The Hula Hoop Loop receive pattern. Fig, 2. PVC adapters and a breakout box make for easy mounting. the upper end of the band. Although the null is qmxc izood. 1 can't guarantee the accuracy of the null direction. This makes no difference if you are just trying to null a noise source. When the project was finished, I decided to see if any articles had been written already on the subject. Sure enough, I found at least one there may be more W5DS wrote an article for 0S7 that was published...

R

The place unless you get Li and C2 so they don't move when you go to tune C2, You should also mount the transmitter in a plastic case, such as Radio Shack's 270-291. It also comes with its own perfboard. Component-mounting methods are up to you. The simplest is just to tack-solder the component leads to each other over a small square of unetched PC board. The components that go to ground form the mounting feet for the circuit. Keep all component lead lengths to J4 inch or so. L2 should be...

Am Help

We are happy to provide Ham Help listings free, on a space-available basis. We are not happy when we have to take time from other duties to decipher cryptic notes sera wied illegibly on dog-eared postcards or odd-sized scraps of paper. Please type or print your request neatly , double-spaced, on an 8-1 2 x 11 sheet of paper and use upper- and lowercase letters where appropriate Also, please make a 1 look tike a 1 not an I which could be an ei or an eye, and so on Hard as it may be to believe,...

Blal Company

Box 62 Eucha, Ok. 74342 918 253 4094 80- 63,95 4.75 Shp 40 52.95 3.75 Shp 80 40t SI 10.000 8 50 shp John M Gebuhr WB0CMC 2340 North 64 Street Omaha 68 W Transmitter Hunters Here's Your Ammo For Tracking For the serious competitor spend a few evenings with a soldering iron and get the jump on the pack. A short while ago the age old pastime of transmitter hunting was revived here in Omaha. There have been a number of enthusiastic hunters, but they have discovered that there is a great...

L

It's my observation that any time two or more hams gather together, their conversation soon rums lo the Lousy Inconsiderate Dummies iLIDs who are ruining ham radio-The subject is not unknown to come up during QSOs, too. So, in my never-ending efforts to be helpful, I'd like your help in trying to identify the areas of expertise into which these lids fall. Lids most certainiy are a major problem for many of us, but before we can tackle the lid problem we have to identity and isolate it so we...

Youre At Part II

WA8YKN's universal digital frequency display stays on the mark no matter what your rig's mixing scheme. I was pleased with the response to my article, What You See Is Where You4 re Ar 73, Jul gt 1985 . There are now quite a few older general-coverage receivers sporting new di iul frequency display s and many of you took the time to write to me. Most of these letters ended with something like, I wish it was this easy to add a display u gt my Kenwood, Yaesu, Heath etc. , After reading this...

Regency Transceiver

Old Regency Programmable Vhf Transceiver

The world's largest distributor of radio scanners, introduces new lower prices to celebrate our 15th anniversary. List price 99 95 CE price 5399,95 SPECIAL 1O-Band, 20 Channel Crys talless AC DC Frequen c y ran ge 25-550 MH co ft nuou 5 cover a ge and 300 MHz. to 13 GHz continuous coverage The Regency MX7000 scanner tets you rnomior military F,BJ Space Satellites Police arte Ftre Departments, Drug Enforcement Agencies Delense Department Aeronautical AM band Aero Navgation Band, sn i Gnime...

Baw Viewstar Antenna Tuner

Hfjil HC3 HC4 KC5 Stock HelB iaBoamMik heads l 53 95 CSI Pr vale Paich III . 469 95 FLUKE 77 auto-ranging digrtai qfcilimeier 125 00 B d 43 Wattmete Call Bird Elements H 59 00 A E 48 00 tn Slock Darwa CN62QS 20 200 20QQW 109 95 L gt ,i gt z CN630 140-450 20 20DW 129 00 Stabytex 20SR. 25 amp 12VDC, 16ampc OL over vo tage protected -99 00 Alineo ELM 2300 F . relent buy 00 Nye MS5 A for the tig boys 529 00 W. jhl 7470 Soldering Station .49 00 Kenwood IF 10A, B, C, Stock Kenwood IF 232C I evel...

Mfj Portable Antenna

MFJ's Portable Antenna lets you operate 40, 30, 20, IB, 15 12.10 meters from apartments, motels, camp sites, vacation spots, any electrically clear location where space for tuff size antenna is a problem. H A tBietcopIng whip extends 54 in. is mounted on self-standing 5Vi x amp V m2 inch Phenolic case. Built-in antennatunerlieid strenght meter. M feet coax Complete rnui -bahd portaole antenna system that you can 300 watts PEP.

Simplex Autopatch G Remote Hf Base

1COM IC-02AT USER'S AUDIO BLASTER MODULE Simplex autopatch and H F remote base with clear voice messages Control your Yaesu FT 757 transceiver or ICOM-IC735 with your VHF UHF portable or mobile Switch between the H.F. remote and the autopatch with DIM F tones Voice ID amp a If control fu notions amp H.F. frequency are voice announced with your programable access codes Autopatch works on any telephone line toneordial pulse Call waiting compatability after beep answer second incoming call while...