Measuring field strength is generally a less useful way of checking power loss. However, the Micronta field strength/SWR tester can also be used to measure the field strength of your CB radio. To do this: 1) Connect the provided small antenna to the Micronta field strength/SWR tester. 2) Connect the CB radio directly to an aerial. Way CB Tester CB Radio Cat 21 VINTAGE MICRONTA 3 RANGE POWER METER AND SWR TESTER W/. Amazon.com : Micronta Field Strength SWR Tester Tuning Antenna System 21-523 : Everything Else. in SWR (standing wave ratio) inciates ratio of power transferred to antenna to Astatic (302-PDC2) SWR/RF/Field Strength Test Meter. Micronta Swr Power Meter Manual Radio Shack Manuals. Looking for an old, out-of-print Radio Shack manual? You've come to the right place. Micronta Swr Meter 21 525 Instruction Manual If looking for the ebook Micronta swr meter 21 525 instruction manual micronta-swr-meter-21-525-instruction-manual.pdf in pdf form, then you've come to the faithful site. We present utter option of this book in doc, DjVu, PDF, txt, ePub forms. Micronta 19-320 Manual.zip: 801 Kbytes: Micronta 21-520A 3 Range Power SWR meter Manual and schematic.zip: 465 Kbytes: Micronta 21-522 Power Modulation SWR Tester Manual.zip: 210 Kbytes: Micronta 22-120 Owners manual.zip: 278 Kbytes: Micronta 22-204C Instruction manual.zip: 2.316 Kbytes: Micronta 63-895 Electronic countdown timer manual.zip: 2 24 Hours*** ORDER NOW ***24 Hours E-MAIL: crew@hamradiomanuals.com TELEPHONE/TEXT: 516-658-6947 MAIL ORDER: HAM RADIO MANUALS 91 SHORE RD GLEN COVE NY 11542 Make checks payable to: "Ham Radio Manuals" Model 21-520A. This piece of Micronta Test Equipment is designed for use with CB and Ham Transceivers. It will be very helpful in determining if your transmitter and antenna system are operating properly. (8.5 X 21.0 X 11.5 cm) (HWD) Weight: 29.3 oz (830g) One tip I forgot to mention in the video is that if you're looking for an SWR meter, get one with the sma