Table of Contents
Advertisement
Quick Links
This document is copyright 2006 by Alpha Radio Products LLC. of Boulder, Colorado. Reproduction for
resale or redistribution is strictly prohibited.
All rights reserved.
4500 Series Wattmeter Manual
Alpha Radio Products
4500 Series
Wattmeter Manual
FCC Notice
This equipment has been tested and found to comply with the limits for a Class B digital
device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable
protection against harmful interference in a residential installation. This equipment generates,
uses and can radiate radio frequency energy and, if not installed and used in accordance with
the instructions, may cause harmful interference to radio communications. However, there is
no guarantee that interference will not occur in a particular installation. If this equipment does
cause harmful interference to radio or television reception, which can be determined by turn-
ing the equipment off and on, the user is encouraged to try to correct the interference by one
or more of the following measures:
·Reorient or relocate the receiving antenna.
·Increase the separation between the equipment and receiver.
·Connect the equipment into an outlet on a circuit different from that to which the
receiver is connected.
·Consult the dealer or an experienced radio/TV technician for help.
Changes or modifications to this device not expressly approved by the Manufacturer could
void the user's authority to operate this equipment.
www.alpharadioproducts
presents
Alpha Radio Products
1
Advertisement
Table of Contents
Summary of Contents for Alpha Radio Products 4500 Series
- Page 1 Changes or modifications to this device not expressly approved by the Manufacturer could void the user’s authority to operate this equipment. This document is copyright 2006 by Alpha Radio Products LLC. of Boulder, Colorado. Reproduction for resale or redistribution is strictly prohibited.
- Page 2 Alpha Radio Products 4500 Series Wattmeter Manual www.alpharadioproducts...
-
Page 3: Table Of Contents
• Appendix A Troubleshooting • Unit will not power on • High SWR always indicated • Erratic RS-232 Operation at high power • Appendix B Wattmeter Specifications • Table B1. Wattmeter Specifications 4500 Series Wattmeter Manual Alpha Radio Products www.alpharadioproducts... - Page 4 Table 1.6.3-5. 4510 Analog Meter Scale 0-200 • Table 1.6.7-1. Summary of 4510 Analog Meter Scale relative to Power Segment Switch • Table 1.6.7-2. Summary of 4520 Analog Meter Scale relative to Power Segment Switch Alpha Radio Products 4500 Series Wattmeter Manual www.alpharadioproducts...
-
Page 5: Owner Information
Owner Information Model Number: Serial Number:_________________________ Purchaser:_________________________ Date Purchased:_________________________ Place Purchased:_________________________ 4500 Series Wattmeter Manual Alpha Radio Products www.alpharadioproducts... - Page 6 Alpha Radio Products 4500 Series Wattmeter Manual www.alpharadioproducts...
-
Page 7: General Overview
General Overview Congratulations! You have purchased an Alpha Radio Products Alpha/Power™ High Frequency RF Power Meter, a laboratory grade device capable of measuring and display- ing Transmit Forward power, Reflected power, Delivered power, and SWR at continuously variable power levels. The 4505 and 4510 wattmeters cover a range from 200 milliwatts (-7 dBW) to 3 kilowatts (+34.8 dBW), and the 4515 and 4520 wattmeters cover a range... - Page 8 Forward power, Re- Power, Reflected Power, Delivered power of the flected power, or SWR or SWR measured by RF source. levels measured by the the wattmeter circuitry. wattmeter circuitry. 300 1000 3000 Alpha Radio Products 4500 Series Wattmeter Manual www.alpharadioproducts...
- Page 9 Forward matching the analog or Reflected power mea- meter display to the sured by the wattmeter appropriate Power Seg- circuitry. ment as measured by the wattmeter circuitry. 4500 Series Wattmeter Manual Alpha Radio Products www.alpharadioproducts...
-
Page 10: 4510 & 4520 Front Panel Layout And Functions
9-pin D connector for the RS-232 output, and a unit label including model and serial number and other relevant information. The Rear Panel of the wattmeter layout is displayed in Figure 1.3-1. Figure 1.3-1 Wattmeter Rear Diagram Alpha Radio Products 4500 Series Wattmeter Manual www.alpharadioproducts... -
Page 11: Internal Controls And Functions
“On/Off” switch on the far lower right hand side of the front panel to turn the unit On. A small LED within the On/Off switch will be illuminated, 4500 Series Wattmeter Manual Alpha Radio Products www.alpharadioproducts... -
Page 12: Connecting The Rf Coaxial Cables (All Models)
While the meter features interchangeability, factory calibration is performed with the load (output) connected to the RF connector nearer the D connector, and therefore, better accuracy is expected with this configuration. Alpha Radio Products 4500 Series Wattmeter Manual www.alpharadioproducts... -
Page 13: Connecting The 9-Pin D Connector (All Models)
As soon as the 4505 or 4515 is plugged into its power supply the wattmeter is “on”. To turn “off” the wattmeter you will need to disconnect it from its power supply or disconnect the power supply from the AC outlet. 4500 Series Wattmeter Manual Alpha Radio Products www.alpharadioproducts... -
Page 14: Operation Of The 4510 & 4520
4505 & 4510 and about 0.5 watts of forward power is required for the 4515 & 4520), and once SWR is minimized, the operator can switch the Alpha Radio Products 4500 Series Wattmeter Manual www.alpharadioproducts... -
Page 15: Selecting The Analog Meter Display Function
Reflected) across four of the nine Power Segments using a “0 to 10” scale. . The “10” value should be interpreted as 1, 10, 100, or 1,000 watts, depending on the Power Segment selected. The applicable Power Segments for the top scale are summarized in 4500 Series Wattmeter Manual Alpha Radio Products www.alpharadioproducts... -
Page 16: Interpreting The Analog Meter Scaling On The 4520
Segment selected. The applicable Power Segments for the top scale are summarized in Table 1.6.3-3. Table 1.6.3-3. 4520 Analog Meter Scale 0-50 Top Scale Analog Meter Display Segment (0-50) 5000 Switch ID/ Segment ID 50 watt 500 watt 5000 watt Full Scale Power Alpha Radio Products 4500 Series Wattmeter Manual www.alpharadioproducts... -
Page 17: Measuring Rf Output Power
RF power that is being delivered to the antenna. 1.6.4.1 Displaying Measured RF Output Power on the Seven Segment LED Display The seven segment LED display will always indicate the currently measured RF output 4500 Series Wattmeter Manual Alpha Radio Products www.alpharadioproducts... -
Page 18: Displaying Measured Rf Output Power On The Analog Meter
The measured power (Forward and Reflected) can then be more accurately displayed on the analog meter for each of the nine segments. Alpha Radio Products 4500 Series Wattmeter Manual www.alpharadioproducts... -
Page 19: Using The Autosense Mode
AutoSense display mode. When the Power level detected by wattmeter fluctuates significantly, the AutoSense function will cause the meter to switch among Power Segments to better match scaling to 4500 Series Wattmeter Manual Alpha Radio Products www.alpharadioproducts... -
Page 20: Using The Manual Mode
100 to 300 watt segment, expected Power levels should be between roughly 115 and 255 watts), Alpha Radio Products recommends that you operate the meter in the AutoSense mode. When the unit is “on”, and there is no discernible power output mea- sured by the unit, the wattmeter will illuminate the lowest power segment light even when the unit is in the AutoSense mode. -
Page 21: 1.7 Windows Monitoring Application
4510 and 4520; it expands the users ability to simultaneously monitor all measurements the wattmeter is capable of making. See figure 1.7.1 for details. 4500 Series Wattmeter Manual Alpha Radio Products www.alpharadioproducts... -
Page 22: Communicating With The Wattmeter Via The Rs-232 Port
The original purchaser of this Wattmeter is covered by a 12-month, limited factory war- ranty. A separate Warranty Certificate is provided with each new unit that contains all of the terms and conditions of this Warranty Alpha Radio Products 4500 Series Wattmeter Manual www.alpharadioproducts... -
Page 23: Appendix A Troubleshooting
Using a shielded RS-232 cable, carefully routing the RS-232 cable, and following good station grounding practices (including both the PC as well as the overall station) will help avoid this coupling. 4500 Series Wattmeter Manual Alpha Radio Products www.alpharadioproducts... -
Page 24: Appendix B Wattmeter Specifications
Field replaceable (UHF type normally supplied) Coax connectors 5.5x2.5mm coaxial power receptacle (Tip is +) DC input 9-pin D female (IBM PC compatible) Serial interface connector * 4505 and 4510 / 4515 and 4520 Alpha Radio Products 4500 Series Wattmeter Manual www.alpharadioproducts... - Page 25 1.50 Current (Output voltage) Line regulation Load regulation Operating temperature Storage temperature pound Weight 3-pin IEC 320 input receptacle Input connector 5.5x2.5x9.5mm coaxial power plug (Tip +) Output connector UL1950, CE-Mark Safety 4500 Series Wattmeter Manual Alpha Radio Products www.alpharadioproducts...
-
Page 26: Appendix C Changing The Back Panel Rf Coaxial Connectors
7. Secure the new connector using the factory supplied screws. The screws are stainless steel machine types, 8-32 x 5/16”. Make sure the screws are tight before applying RF power. Alpha Radio Products 4500 Series Wattmeter Manual www.alpharadioproducts... -
Page 27: Appendix D Serial Interface Specification
A typical string of words following the First Word might appear as follows (including the comma separators): 0.240197,0.031695,2.140988,77.900000,3.482099 The above information indicates the following data: Forward Power: 0.240197 W Reflected Power: 0.031695 W SWR: 2.140988 Temperature: 77.900000 F Frequency: 3.482099 MHz 4500 Series Wattmeter Manual Alpha Radio Products www.alpharadioproducts... - Page 28 SWR: 2.129019 Temp: 78.012496F Freq: 4.533681 MHz. Additional Notes: 1. The rate at which the sentences are emitted depends on the mode. They are more rapid in Tune/Carrier mode than in PEP mode. Alpha Radio Products 4500 Series Wattmeter Manual www.alpharadioproducts...
- Page 29 4. Delivered Power is a derived value and not a measured value. It is calculated as the difference between Forward and Reflected Power for any given measure- ment. 4500 Series Wattmeter Manual Alpha Radio Products www.alpharadioproducts...
-
Page 30: Appendix E Theory Of Operation
Analog meter (whether in AutoSense or Manual mode), drives the seven segment display, and sends a signal to the RF micro when the user toggles the meter between operating modes (PEP/Tune Carrier). Alpha Radio Products 4500 Series Wattmeter Manual www.alpharadioproducts... - Page 31 RF Board Logarithmic Detector RF Micro present in all wattmeters Display Board present in 4510 and 4520 Display Micro Power Filter, Voltage Regulator Seven Analog On / Off Segment Meter Switches / LEDs 4500 Series Wattmeter Manual Alpha Radio Products www.alpharadioproducts...
-
Page 32: Appendix F Sample Measurement Data Of Wattmeter
Typical Error vs. Frequency Frequency (MHz) Typical Error vs. Temperature Temperature (Deg F) Alpha Radio Products 4500 Series Wattmeter Manual www.alpharadioproducts... - Page 33 Typical Directivity vs. Frequency Frequency (MHz) Typical Minimum Detectable SWR vs. Frequency Frequency (MHz) 4500 Series Wattmeter Manual Alpha Radio Products www.alpharadioproducts...
Need help?
Do you have a question about the 4500 Series and is the answer not in the manual?
Questions and answers