WELCOME TO NM3E's RF Wattmeter Pages!
Stocking new and used CDI and Bird® items.
COPYRIGHT 2003-2023 NM3E.COM, LLC
Dear valued customers and friends. After 20+ years I am exiting the used test business. Used items are no longer being purchased or taken in trade. Every in stock item is being listed on this web site as time permits.
There are several reasons but the first is spending time with my family. A close second is financial. Calibration costs last year were in excess of $12,500. With the fluctuation in prices it is next to impossible to buy used have it repaired, calibrated and still make a profit. My calibrator in Italy can no longer buy replacement element lids so the repaired elements do not meet my cosmetic standards. The latest batch of repaired / recalibrated elements looks like woodpeckers opened the elements not a certified lab. Lastly it is increasingly difficult to update this web site. Every time the antivirus or windows updates they lock me out of the ports front page uses for ftp. Which leads to sold items not being marked sold or removed promptly. I will do my best to fill your needs with the stock remaining, but when items are sold there is nothing that can be done. There will be no more used added.
ORDER / PAYMENT INFO CLICK HERE
PAYPAL email address CLICK HERE
My phone # is 610-207-4865>>>email is best
Email questions to email@example.com (NOT my Paypal email)
Every Item is tested and guaranteed NOT DOA = it will arrive Working
CLICK THE LINKS BELOW TO FIND WHAT YOU NEED
If the page looks the same after clicking a link please scroll down
NEW 27MHz METER OPTIONS PAGE HERE
NICEST GOOD CLONES PEAK reading DIGITAL 4431 Sampling PANEL mounted
4410 / 4410A Type Meters and elements 4410 meter / Element ranging explanation chart
4421 METERS AND 4024, 4025, 4021,4022, 40xx SENSORS + 4421 METER CASES
ANTENNA TESTERS AT-100, AT-400, AT-800 + CASES
H 2-30mhz(CB) A 25-60MHz(CB) B 50-125MHz C 100-250MHz D 200-500MHz
E 400-1000MHz GHz 1000MHz+ Other Elements (low power / odd frequencies)
METER RELATED ITEMS:
NEW: Lighting sets DROP IN = NO solder
QC CONNECTORS UNIDAPT AND SETS DUMMY LOADS ATTENUATORS, RF SAMPLERS
LINE SECTIONS, CABINETS, CABLES, METER MOVEMENTS, AND REPLACEMENT Parts
RF ADAPTERS SNAP-AROUND Chokes METER AND ELEMENT CASES OTHER ITEMS
Prices shown do NOT include shipping.
A few photos of our Hawaiian vacation
ALL Content on these pages including Photos are the property of NM3E.com, LLC (copyright 2003-2023)
4410 (OLDER VERSION) 4410A (LATEST VERSION) 4412 (120vac POWERED VERSION)
The meters mentioned all work the same way. By using internal electronics to scale the element reading to the dial setting.
So.....like most other Bird meters the element determines how the meter reads.
Or to put it another way you must use the correct element to get accurate readings for the frequency and power you are measuring.
The element MUST be a 4410 series (4410-#) element or you can ruin the meter.
Many 4410's I buy must be sent for repair / recalibration cause by improper element use.
4410 elements and their common usage are at the bottom of this page.
The meters have a rotary multiplier switch on the front.
The first position is battery check. You need one 9 volt battery that it will check to make sure you get accurate readings.
The Battery is in a small compartment with a swig open door - for easy battery change - NO TOOLS REQUIRED
The next 7 positions are numbered from 100 to 0.1 all of these are % of the maximum power marked on the element.
If an element is inserted that is marked 1000 watts. It will accurately read from 1watt to 1000 watts full scale.
The 100 position reads 100% = 1000 watts full scale.
the 30 position reads 30% of the 1000 = 300 watts full scale
the 10 position reads 10% of the 1000 = 100 watts full scale
the 3 position reads 3% of the 1000 = 30 watts full scale
the 1 position reads 1% of the 1000 = 10 watts full scale
the 0.3 position reads 0.3% of the 1000 = 3 watts full scale
the 0.1 position reads 0.1% of the 1000 = 1 watt full scale
When testing 27MHz 1000 watts or less the 4410-5 element is perfect 25-60MHz 1000watts.
If HF 2-30MHz then a 4410-3 element works up to 1000Watts.
If you run more then 1000 watts but less then 10,000 a 4410 meter with a 10,000w element can be used.
It works the same 100% - 0.1 % but scaled to the 10,000 watt max as follows.
The 100 position reads 100% = 10,000 watts full scale.
the 30 position reads 30% of the 10,000 = 3000 watts full scale
the 10 position reads 10% of the 10,000 = 1000 watts full scale
the 3 position reads 3% of the 10,000 = 300 watts full scale
the 1 position reads 1% of the 10,000 = 100 watts full scale
the 0.3 position reads 0.3% of the 10,000 = 30 watts full scale
the 0.1 position reads 0.1% of the 10,000 = 10 watt full scale
This will require a 4410-4 element 2-30MHz which are more expensive but worth the investment.
If you generate more then 10,000 watts I have high power meter sets here:
ELEMENT NUMBER RATINGS AND COMMON USAGE:
4410-2 10,000 watts 450-2500KHz - old AM radio and induction heating
4410-3 1000 watts 2-30MHz HAM and CB (will work on 160M)
4410-4 10,000watts 2-30MHz HAM and CB (will work on 160M)
4410-5 1000 watts 25-60MHz lower cost 27MHz and 6 meters
4410-6 1000 watts 50-200 MHz - 6 meters, 2 meters, aero mobile
4410-7 1000 watts 144-520MHz 2 meters, 1.25 meters, 70cm, radio navigation
Even thought the 4410 series requires a battery it only reads average / dead key NOT peak / swing.
They cannot be converted to read peak / swing.