RF power meter, 0-500Mhz -80 ~ 10 dBm RF power attenuation value can be set, US $960 – Picture 0

RF power meter, 0-500Mhz -80 ~ 10 dBm RF power attenuation value can be set, US $960 – Picture 1

Rf Power Meter, 0-500mhz -80 ~ 10 Dbm Rf Power Attenuation Value Can Be Set

US $960

???, ???, China
Jan 29th

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RF power meter, 0-500Mhz -80 ~ 10 dBm Description : HP350 is a RF power meter , the meter button to complete the operation by the advantages : simple structure , easy to use , stable and reliable performance , high sensitivity and measurement speed and so on. Specifications: Measuring power range : -80 ~ +10 dBm ( external RF attenuator can be extended to 100dBm) Measuring Power Resolution : 0.1 dBm Measurement frequency range : 0 ~ 500 MHz Measuring power : 1nW ~ 2W Operating voltage : 7 ~ 12 VDC Working current : <50 mA Working temperature : -40°c ~ 65 °c Storage temperature : -40 °c ~ 65 °c Size : 55 * 45 * 10 mm Interface Display and operating instructions : ( 1 ) Unit : dBm; ( 2 ) Key Description : FUN: function keys ; MODE: set to change the interface ; SEL: from plus key or minus key to self ; 4.1 , the display of measurement data Interface display font : The first line of "RF-POW -80.3 dBm" The second line "20uV 0nW" Note: The values are displayed dBm signal , the input voltage, the input power . 4.2 , set the RF power attenuation values Interface display font : The first line of "RF Attenuator" The second line "SUB 000dB" Key operation : FUN: function keys ; ( select subtraction direction ) is displayed as a minus SUB display ADD to add . ( Long press FUN key to save the set dB value ) SEL: from plus key or minus key to self ; Note: Different external RF power attenuator , set the appropriate attenuation coefficient studying the correct power parameters. Wiring P1 wiring definition: No. Symbol Meaning 1 VDD positive power module (7V ~ 12V) 2 GND negative power module P2 wiring definition: No. Symbol Meaning 1 FX unused 2 RF input RF signal 3 GND negative power electronic scales Comment : First , dB is a pure counts : For power , dB = 10 * lg (A / B). For voltage or current , dB = 20 * lg (A / B). dB meaning actually be easier , is to a large ( followed by a long string of 0 's ) or small ( in front of a long list of zero ) number of relatively brief that out . Such as: X = 1000000000000000 ( Total 15 0 ) Can be expressed as : 10lgX = 150dB X = 0.000000000000001 Can be expressed as : 10lgX = -150 dB dBm definition is miliwatt ( milliwatts ) . 0 dBm = 1mw; dBw defined watt. 0 dBW = 10lg1 W = 10lg1000 mw = 30 dBm. dB power units are always defined by default to 10lg of dollars . Of course, in some cases you can use the signal strength (Amplitude) to describe the functionality and power , this time with 20lg to count . Whether or signal processing control areas are like . For example, sometimes you can see the expression dBmV . Package including 1x RF power meter Payment We accept the payment via PayPal only. Payment is expected within 5 days of the auction's end. Availability of the item can not be guaranteed if no payment received in 3 days. Please don't purchase if you are not intend to pay. Unpaid item will report to eBay and get the warning. . Shipping & Handling 1.Items are shipped from china.we will send out within 2 working days after receive the money. 2.We usually send the parcel by Singapore Post Air Mail or HongKong Post Air Mail. After send out,most country will arrived the parcel in 12-25 business days. We also can provide Express,such as Fedex,DHL,EMS,usually 3-7days to most country.If you need Expedited shipping,contact us. The global shipping is difficult to control sometimes,if you havent receive after 25days,contact us,we will check for you. 3.We send to the address of ebay add info,please check your add info of ebay is correct. 4.Some conutries,such as Italy,Brazil,we can ship to,but it usually needs more than 30days to arrive,if you dont care the long time of shipping,contact us. Warranty and Return 1.If you are not satisfied when you receive your item, please return it within 14 days for a replacement or money back. Please contact us before you return it. 2.If item is defective in 14 days, We will send you a replacement without extra charger, or offer refund after we receive the defective item. 3.If item is defective after 14 days, you can still send it back to us. We will send you a new one after receiving the defective item. But you have to pay the extra shipping free. Feedback please leave behind your positive feedback for us after you receive the item, no matter whether you are satisfactory with my item, we will leave behind the same to you. If you want to leave a negative feedback,please contact me at first, we trust that everything could be issued before you leave it. Contact us We work 6 days except Sunday and public holidays. Please feel free to contact us anytime if you have any questions , We will try our best to help you.