R&L Electronics 800-221-7735
jtbm270
   Catalog » Tools » METER (MULTI METER) » MFJ834 My Account | Cart Contents | Checkout   


Search
 
Use keywords to find the product you are looking for.
Advanced Search
Icom
Jetstream
Kenwood
MFJ
Yaesu

Used Equipment

Links

Screen Savers
Brand
Email
Email
Subscribe to our email list
Unsubscribe to our email list
Catalog
Request Catalog
Download eCatalog
Store Info
FAQ
Map to Store
Special Events
Store Hours

MFJ-834 MFJ MFJ834
[MFJ834]

$69.95

IN-LINE RF AMMETER, 1-30MHz, with SO-239

This is a special order item. We do not normally stock it. We will order it for you.

View the manufactures page for MFJ834
View the eham review page for MFJ834

Connect the MFJ-834 Coax In-Line RF Ammeter between your antenna and tuner/ transmitter/amplifier and measure antenna feedline current in 3 calibrated ranges.

Use it . . . for tuning your antenna tuner/ transmitter/amplifier for maximum radiated power _ for determining antenna feedpoint impedance_ for comparing antennas and tuners _ for trouble shooting . . . and for checking for changes. Tuning
for maximum feedline current for any given antenna always gives maximum radiated power!

Any adjustment -- transceiver or amplifier tuning/loading controls, antenna tuner settings, whatever -- that increases feedline current improves power transfer and gives you a stronger radiated signal.

Radiated power increases rapidly because power increases as the square of the current.

Minimum SWR does not always mean maximum radiated power -- your tuner or lossy coax may be dissipating power -- and you may not get peak output power even if your tuner or amplifier is properly tuned.

Use the MFJ-834 to determine best antenna tuner settings and to compare various tuners.

Calculate your antenna feedpoint impedance by dividing your applied power by the square of the feedpoint current.

Your antenna can change when you apply power -- insulators break down, traps heat up, capacitors leak -- and your feedpoint impedance may be drastically different from your SWR Analyzer measurements.

MFJ RF ammeters are rugged, read acc-urately over 1-30MHz in three linear ranges (.3, 1, 3 Amps) and barely perturb the antenna.

Large 3-inch lighted meter. Use 12 VDC or 110 VAC with MFJ-1312D, SO-239 connectors. 6"W x 3-1/2"H x 4-1/2"D

Optional Accessories

MFJ 2 MFJ1312D12Vdc 500mA AC ADAPTER $ 15.95Buy MFJ1312D
IN-LINE RF AMMETER, 1-30MHz, with SO-239 MFJ-834 METER (MULTI METER) TOOL
Customers who bought this product also purchased
AMERITRON ADL2500
AMERITRON ADL2500
VECTRONICS DL650M
VECTRONICS DL650M

 

Shopping Cart more
0 items
Manufacturer Info
MFJ
MFJ Homepage
Other products


Follow us on Facebook



KENWOOD
THD72A

APRS HT
$389.95
Until 03/31/17


YAESU
FT991

System Fusion w/HF
$0


ICOM
IC7300

Real time Spectrum Scope
$1299

Amplifiers and Preamps
HF Amplifiers
2m Amps/Preamps
Antennas
Multiband HF Base
Multiband HF Mobile
Multiband HF Portable
2m Base
2m Mobile
Multiband VHF/UHF Base
Multiband VHF/UHF Mobile
Multiband HF/VHF/UHF Mobile
Antenna Accessories
Duplexers
Triplexers
Rotators
Antenna Mounts
Magnet Mounts
Lip Type Mounts
Antenna Tuners
HF Automatic
HF Manual
Books
Study Guides

Cable, Coax, Wire
HT Jumpers
Ground Wire
Ladderline
Mini 8/RG8X w/Connectors
RG8 w/Connectors
Rotator Cable
Connectors
Adapters
Connector End
Power Supplies
Switching 15-40 amps
Transformer 15-40 Amps
Wall Cubes
Radios
2m Handhelds
2m/70cm Handhelds
2m Mobile
2m/70cm Mobile
HF Base
HF/VHF Base
Multiband HF/VHF Mobile
Radio Accessories
Clocks
Coax Switches
External Speakers
Lightning Arrestors
SWR Analyzers
TNC/Sound Card Interfaces
Wattmeters
Tower
Rohn 25G type
Rohn 45G Type

Copyright © 2016 R&L Electronics
1315 Maple Ave
Hamilton, Ohio 45011
800-221-7735
513-868-6574 Fax
sales@randl.com