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TelePost LP-100A, Руководство по эксплуатации

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LP-100A  

Digital Vector  

RF Wattmeter 

 
 
 
 
 
 
 
 
 
 
 
 

 

 

 
 
 

Operations Manual

 

 

Covers LP-100A serial numbers starting 

at 2020, and firmware beginning at v1.2.3.1 

 

 
 

 

 
 
 

Содержание LP-100A

Страница 1: ...1 LP 100A Digital Vector RF Wattmeter Operations Manual Covers LP 100A serial numbers starting at 2020 and firmware beginning at v1 2 3 1...

Страница 2: ...igan Radiation Laboratory Industry Canada Compliance Statement Canada Digital Apparatus EMI Standard This Class B digital apparatus meets all the requirements of the Canadian Interference Causing Equi...

Страница 3: ...verview 6 Detailed Operation 9 Setup Menus 14 Circuit Description 16 Schematic 18 Software 20 Specifications 26 Warranty 27 Appendix 28 Calibration 31 Note Calibration info is provided for reference L...

Страница 4: ...d in the field to external standard to within 0 1 on each band Power display is Fwd or Net power delivered to the load Fwd minus Ref power SWR Alarm system with set points for Off 1 5 2 0 2 5 3 0 and...

Страница 5: ...T amp keying between your amplifier and rig through the LP 100A using RCA connectors RS 232 Connects to computer standard M F straight through DB9 serial cable See manual for usage Current Voltage Con...

Страница 6: ...n as well as using the Plot program to do automatic graphing of a number of parameters dBm mode uses professional dBm and RL Return Loss terminology instead of watts and SWR to indicate power and load...

Страница 7: ...e Peak Mode is VERY fast and can respond to a lip smack mic button click etc Don t be alarmed by this it is normal and allows the LP 100A to provide an accurate indication of peak power Unless a lot o...

Страница 8: ...es This is especially true of older amplifiers with unregulated power supplies but also is affected by the ALC timing characteristics of modern rigs in both CW and SSB The peak detector in the LP 100A...

Страница 9: ...except that it is calibrated to display power from 15 dBm to 33 dBm There is no return loss in this mode because it does not utilize the coupler Power is supplied directly to one of the inputs on the...

Страница 10: ...in this mode resets the PIC quite useful when flash programming the PIC The reset does not affect setup calibration settings Pressing the Peak Avg Tune button toggles the Temp display between degrees...

Страница 11: ...imer and the Sleep timer The Scroll timer sets the time in minutes from the last transmission to the time when your call sign starts scrolling across the screen The Sleep timer sets the time from the...

Страница 12: ...nd SSB The peak detector in the LP 100A is very fast and will grab even the smallest peak Peak SWR will show values a little higher than steady state at times due to the wide dynamic range of the LP 1...

Страница 13: ...There is no return loss in this mode because it does not utilize the coupler Power is supplied directly to either one of the inputs on the back of the LP 100A This mode can be used for accurate low p...

Страница 14: ...10 above the indicated value Note Defaults are 15W 100W and 1500W Note These ranges are scaled by a factor of x1 67 when using a 5KW coupler and 3 33 when using a 10KW coupler This screen is used to s...

Страница 15: ...me from the last transmission to the time when the display turns off The Scroll saver should be set first since it also affects the Sleep timeout Each can be adjusted for up to 10 minutes 20 minutes t...

Страница 16: ...which provide signals to both the gain phase comparator and the power detector With a 50 ohm non reactive load the levels of these two signals will be virtually identical and the phase between them wi...

Страница 17: ...itches interfacing to the GVFD display processor and an SWR alarm relay which is used to kill the PTT to your amplifier to protect both the antenna and amplifier The SWR alarm also lights a front pane...

Страница 18: ...18 Schematic Page 1...

Страница 19: ...19 Schematic Page 2 Coupler Schematic...

Страница 20: ...to download a different driver than the one supplied with this unit when using XP Search the internet for ICUSB232 ByteRunner also sells an adapter which uses the well supported FTDI chipset for about...

Страница 21: ...15 200 baud 8 bits no parity 1 stop bit NOTE Firmware versions before 1 2 0 0 used a baud rate of 38 400 and before 1 0 3 used a baud rate of 19 200 and did not report dBm or SWR values MicroCode Load...

Страница 22: ...d Ham Radio Deluxe HRD Transmit mode is also selectable For most rigs FSK is a good choice but AM and CW are also available To use CW you will probably need an interface which uses the RTS or DTR hand...

Страница 23: ...tart frequency and subtracts 1 kHz form the stop frequency This is necessary because some rigs will not transmit at the band edges in all modes Set a step size For single band scans of most bands 50 k...

Страница 24: ...How can you tell the sign is bad Generally speaking X or Phase never bounce off of zero or swing radically through zero like from 20 to 20 over a 50 kHz span If this happens reverse the first point af...

Страница 25: ...of the feedline to the remote antenna would be needed or the LP 100A located remotely with a laptop computer which would allow remote control of the LP 100A To use PolarPlot with the LP 100A you just...

Страница 26: ...Bargraph response 50 Hz Bargraph resolution 90 steps Direct Inputs 15 to 33 dBm 50 ohms 0 1 to 650 MHz 0 1 5 dB 2W max DC Power 11 16 VDC 270 330 mA depends on brightness setting Operating temp range...

Страница 27: ...ation of the warranty period at our discretion or where in our reasonable opinion the damage is due to abuse accident improper or abnormal usage improper installation alteration lightning or other inc...

Страница 28: ...such as the HP438A that we use which has a calibrated precision thermocouple sensor These sensors are generally designed to operate in the 0 1 to 1W range This necessitates the need for a precision p...

Страница 29: ...especially at the leading edge of a CW character or voice syllable This behavior also depends on the resting time between characters The effect is exaggerated when the SWR is high since the rig will t...

Страница 30: ...ubs sometime in the future For a comprehensive review of the principles and math involved in transmission line theory line transformations etc visit http www cebik com trans zcalc html This is copyrig...

Страница 31: ...d and setting the Trim for a reading of 25 0 or whatever the actual load resistance is if it s not exactly 25 0 This adjustment is used to calibrate the slope of the phase detector It is simply done b...

Страница 32: ...hes your dummy load then unkey the transmitter Repeat this procedure for all bands Advance to the Phase Zero screen and repeat the procedure for each band this time adjusting for a phase of zero degre...

Страница 33: ...s for the adjustment of Master power sensitivity This value will normally be near 1 Both the Master and Fine power adjustments have a range of 12 5 in 0 1 increments The Fine sensitivity adjustment is...

Страница 34: ...and the variation of Fine Trim setting should be 2 from 160 10m and 10 on 6m This is dependent on a number of factors to do with xfmr winding mainly total of core wound positioning and wire routing an...

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