For As

appropriate

U5V (MOT USED)

Nffd, under Te I rex Pat. 2,576,929

WRITE FOR TELRÉX PL 68

TELREX (Patd.) "BALUN" FED "INVERTED V" ANTENNA KITS

EASY-TO-INSTALL, HI-PERFORMANCE LOW-FREQUENCY ANTENNAS

"Mono" Bands from $23,95-AIso "Trapped" 2 and 3 Band Kits, 3, 4 or 5 Band "ConicaMnverted-V" Antennas from $52.95 3r 4 or 5 Band, 5 to 10 DB-MEmpirical-l.V-Logs"-S.A.S,E.

TELREX COMMUNICATJON ENGINEERING LABORATORIES—ASBURY PARK, N. J. 07712

Nffd, under Te I rex Pat. 2,576,929

Frank Case W3RMI 2000 Kern an Drive Baltimore, Maryland 21207

Visual Monitoring of Remote Carriers

What does your CW signal look like?

If I make it known during a QSO that I have a panadaptor (Heath Ham-Scan HO-13), 1 am nearly always asked to check keying characteristics; or if on phone, which I use on occasion, i am asked to check modulation, I he Ham-Scan can do neither of these tilings. However, the thought occurred that keying and modulation could be checked if one could take a look at the other's carrier, and a handy place to look at an incoming carrier is at the last if stage before detection—so that's where we look.

Modulation checks are easy to make and I oblige. Inasmuch as hams are human and they want only compliments, I suppose this is a mistake. If you want a fast 73 es cul"? tell him that he is splattering all over the place. On the other hand, why not let him earn a pink ticket on his own?

However, the main discourse here is CW keying characteristics. Keyed carriers can be studied at leisure—you needn't be in QSO with anyone. Just turn on your receiver and scope, tune around the CW portions of the band and watch, fll describe the circuitry to accomplish this a little later.

There are almost as many different signals on the air as there are stations. I would suggest that whenever Official Observers send their friendly QSL's, they would include a sketch of the offenders signal This would present more fact than opinion, l lie picture might suggest a fault to the signals owner that he had been suspecting, but not worrving about because all his reports were

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