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HAM ©

2015

All rights reserved

2.

REFLECTED POWER

•

REF

TX

Reflected power at the TX (Sensor) feed point.

•

REF

ANT

Reflected power at the ANT (Antenna) feed point.

3.

REFLECTION

•

SWR

TX

Standing Wave Ratio at the TX (Sensor) feed point.

•

SWR

ANT

Standing Wave Ratio at the ANT (Antenna) feed point.

•

RL

TX

Return Loss [dB] at the TX (Sensor) feed point.

•

RL

ANT

Return Loss [dB] at the ANT (Antenna) feed point.

4.

IMPEDANCE

•

IMP

TX

Rectangular coordinates

R + jX

complex impedance at the TX (Sensor) feed point.

•

IMP

TX

Polar coordinates

|Z|Φ

complex impedance at the TX (Sensor) feed point.

•

IMP

ANT

Rectangular coordinates

R + jX

complex impedance at the ANT (Antenna) feed point.

•

IMP

ANT

Polar coordinates

|Z|Φ

complex impedance at the ANT (Antenna) feed point.

LARGE SCREEN

Large screen is a screen providing two (2) user configurable measurements when there is no need to monitor
many parameters at once, rather have non-disturbing, transparent, fast and as large as possible readout of basic
parameters. Good for contesting or as general screen for users preferring large digits.

Available measurements:

1.

FORWARD

•

FWD

TX-REF

Peak envelope forward power minus reflected power (delivered power) at the TX feed point.

•

FWD

ANT-REF

Peak envelope forward power minus reflected power (delivered power) at the ANT feed point.

•

FWD

TX

Forward power at the TX (Sensor) feed point.

•

FWD

ANT

Forward power at the ANT (Antenna) feed point.

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Summary of Contents for SMORF

Page 1: ...microHAM 2015 All rights reserved SM RF RF VECTOR SIGNAL METER microHAM fax 421 2 4594 5100 e mail support microham com homepage www microham com Version 1 4 8 April 2016 1...

Page 2: ...EN Screens Menu 18 7 SINGLE SENSOR SCREEN TEMPLATES 20 STANDARD Screen 20 LARGE Screen 21 PSK Screen 22 TUNE Screen 23 TECHNICAL Screen 24 OSCILLOSCOPE Screen 26 SPECTRUM Screen 29 AUTO Mode 31 8 DUAL...

Page 3: ...WR Alarm 60 LOW POWER Alarm 61 HIGH POWER Alarm 62 PSK IMD Alarm 62 ARCING Alarm 63 13 DATA STRUCTURE DIAGRAM 64 14 SENSORS 65 15 REMOTE CONTROL 66 HTTP Server 66 VNC Server 68 Remote Control Applicat...

Page 4: ...temperature Very wide viewing angle sunlight readable high contrast graphics OLED display Multiple user configurable display screens for powers impedance waveform spectrum PSK SO2R User configurable a...

Page 5: ...ctional couplers All sensors have internal micro controller and EEPROM memory for calibration data storage Micro controller measures internal temperature of the coupler and provides these data on requ...

Page 6: ...er switches to the AUTO mode and automatically focuses to the first sensor passing sensing nonzero power when pushed and held together with SENSOR 2 for one second meter switches to the DUAL mode and...

Page 7: ...rves as INPUT 4 in 4 INPUT mode 5 PTT INHIBIT IN1 configurable input coupled to SENSOR 1 6 PTT INHIBIT OUT1 configurable output coupled to SENSOR 1 7 PTT INHIBIT IN2 configurable input coupled to SENS...

Page 8: ...ur interface or you have interface without iLINK port please refer to ALARM SETTINGS chapter for more details This connection is not necessary for SM RF functionality but when used SM RF can protect y...

Page 9: ...her for one second meter switches to DUAL mode When meter switches to the DUAL mode it provides measurement results of both sensors at the same time Please note AUTO mode and DUAL mode availability de...

Page 10: ...up to 10 Last but one shows SWR from 10 to 15 last one everything higher than 15 Same as for the power also for SWR four 4 custom color ranges can be defined in the BOTTOM BAR MENU on per band basis...

Page 11: ...dure which needs to know the frequency of incoming signal therefore is important to see it on all the time If measured signal is very low in power it may happen that the signal is too weak to measure...

Page 12: ...ANT subscripts REF When you look at most of SCREENs you certainly wonder what these TX and ANT subscripted suffixes means They present another unique feature of the SM RF called two point measurement...

Page 13: ...ar graph you have to enter EDIT mode and select field parameter right next to T BAR or B BAR icon in top STATUS bar depends on if you want to change top or bottom bar function When parameter is select...

Page 14: ...mplex impedance R green jX red at the ANT Antenna feed point 13 Z TX Z Dual display of polar coordinates complex impedance Z green red at the TX Sensor feed point 14 Z ANT Z Dual display of polar coor...

Page 15: ...be lit on its position Occurrence of higher peak value during the hold will restart this time Range 0 20s Step 100ms 7 P H DECAY Sets decay time for peak hold segment Range 0 20s Step 100ms 8 EDIT POW...

Page 16: ...ed output signal works in continuous or single shot mode with adjustable time duration Transformer isolated output is compatible with both balanced and unbalanced microphone inputs output level is adj...

Page 17: ...ep Range 1 V 130mVp p Step 1 10 MONITOR Enables and sets monitoring level of signal generator output through internal speaker Please note if you do require extreme output signal purity keep it OFF CON...

Page 18: ...power overshoots These overshoots can be caused by poor power supply regulation and ALC Virtually every transceiver generates overshoots at the beginning of transmission until ALC loop stabilizes hun...

Page 19: ...d two advanced alarms PSK IMD alarm and ARCING alarm While Alarms settings are individual for each sensor their settings apply to all sensor s SCREENs SCREEN MENU allows further setting individually e...

Page 20: ...xample 0dBm 1mW 50dBm 100W 53dBm 200W 60dBm 1kW 0dBW 1W 20dBW 100W 23dBW 200W 30dBW 1kW TYPE After the UNIT field TYPE is displayed as subscript SM RF supports four power types PK Peak Envelope Power...

Page 21: ...jX complex impedance at the ANT Antenna feed point IMPANT Polar coordinates Z complex impedance at the ANT Antenna feed point LARGE SCREEN Large screen is a screen providing two 2 user configurable m...

Page 22: ...mental component Level of these harmonics has main impact to the output signal purity They are shown dimmed when their level is too low to be certain for IMD quantification below dynamic range All mea...

Page 23: ...T Standing Wave Ratio at the ANT Antenna feed point RLTX Return Loss dB at the TX Sensor feed point RLANT Return Loss dB at the ANT Antenna feed point 3 PERCENTAGE Shows ratio of current power to 100...

Page 24: ...ontesting Now we are going to describe screens which you normally don t use every day but are extremely helpful for TX signal chain checking troubleshooting experimenting on antennas and matching netw...

Page 25: ...nates complex reflection coefficient for both TX and ANT points Re j Im Real and Imaginary part of the reflection coefficient Polar coordinates complex reflection coefficient for both TX and ANT point...

Page 26: ...it CONTROLS 1 MODE Sets oscilloscope operating mode ROLL Rolling mode In Rolling mode screen scrolls from the right to left while new data appears on the right side Speed of scrolling depends on hori...

Page 27: ...n captured waveform They can work in two modes Tracking and Free mode In Tacking mode indicated by CT icon Y position of the cursor is stuck to the waveform while X position can be adjusted In Free mo...

Page 28: ...fixed rate of 125 thousands samples per second For easier to use decade ranges low ranges or advanced acquisitions scope uses real time decimation and interpolation operations Therefore minimal and ma...

Page 29: ...y presented in in table on the right side of display Bottom line of the table with sign shows difference between CURSOR 1 and CURSOR 2 for both amplitude and frequency Cursors have slightly different...

Page 30: ...microHAM 2015 All rights reserved intentionally left blank 30...

Page 31: ...transceivers where meter automatically switches between sensors according to operating band HF vs VHF or UHF or for SO2R contesting setups where only one transceiver transmits at a time AUTO mode is n...

Page 32: ...elope forward power minus reflected power delivered power at the TX feed point FWDANT REF Peak envelope forward power minus reflected power delivered power at the ANT feed point FWDTX Forward power at...

Page 33: ...ided In the rectangle box Gain and Phase between Sensor 2 and Sensor 1 respectively are shown Available measurements 1 FORWARD POWER FWDTX REF Peak envelope forward power minus reflected power deliver...

Page 34: ...microHAM 2015 All rights reserved intentionally left blank 34...

Page 35: ...n at four 4 simultaneously updated horizontal bar graphs as well as their numerical values in dBm right next to the bar graphs Bar graphs have linear 50dB range maximal value can be set manually from...

Page 36: ...evel is below the frequency lock level rise amplitude of each signal separately until it locks Phase measurement is principally not possible different frequencies If you are going to measure three or...

Page 37: ...il MENU disappears by brief pushes of the MENU button Even thought MENU always starts at root MAIN MENU screen last path through the menu branches is remembered by simple pushing MENU button you get w...

Page 38: ...MK2R it is necessary to set radio assignment it defines which SM RF belongs to the RADIO 1 and which belongs to the RADIO 2 1 METER MODE Sets meter mode of the SM RF 2 RADIO ID ASSIGNMENT Sets radio...

Page 39: ...N3 IN4 In series setup this sensor should be placed after the tested device towards load or antenna If you are connecting two SM RF boxes to iLINK bus of MK2R it is necessary to set radio assignment i...

Page 40: ...have two sensors and often changing RF setup due to various experiments it doesn t force you to change METER MODE on every sensor s change 11 SCREEN NAME Sets how long the SCREEN name will be shown o...

Page 41: ...GRAPHs Please note 0 intentionally does not turn light off but sets them to some minimal usable level 3 AUTO MIN Sets minimal intensity of the LED BAR GRAPHs 4 AUTO MAX Sets maximal intensity of the...

Page 42: ...ction usually your local Router or ISP 4 MANUAL Allows to set the IP ADDRESS NET MASK GATEWAY and DNS ADDRESS manually When you consequently re enable LAN parameters are copied to appropriate position...

Page 43: ...g moving parameters Parameters can be individually enabled or disabled Available parameters are UTC time DATE LOCAL TIME and CALLSIGN Callsign can be edited on screen by default it is set to microHAM...

Page 44: ...microHAM 2015 All rights reserved SYSTEM MENU AUX PORT intentionally left blank 44...

Page 45: ...WAIT RESPONSE RTC is waiting for response from the NTP server This happens when the NTP server is busy or not responding WAIT FOR DNS RTC is waiting for response from the DNS server This happens when...

Page 46: ...a are exported to the computer together with content of all three backup slots When you restore config data from the computer back to the SM RF SM RF updates also sensor s data As was described SM RF...

Page 47: ...S ORDER This menu allows to set if particular screen will be shown in sequence of screens for the selected sensor and allows to customize the NAME of the screen Menu provides table each row is assigne...

Page 48: ...selected data will be copied If ALL is selected data will be copied to all screens of selected sensor EXCEPT disabled screens NO in SENSOR x SCREENS ORDER menu 3 SENSOR Sets destination sensor where s...

Page 49: ...a table where attenuation and phase difference of the cables connecting the Sensor to the SM RF is defined To understand why this table is important to overall accuracy of the system it is necessary t...

Page 50: ...nts to get exact value of the attenuation and the phase for current operating frequency in real time By default the Sensor Cables Table is pre set using typical values of the attenuations of provided...

Page 51: ...each end If you prefer to make them yourself make sure to cut them for exactly same physical length and solder or crimp connectors precisely If you need even longer cables use thick 7 12mm cable doubl...

Page 52: ...or radio common situation on VHF or UHF bands In this case whenever it is possible calibrate cables also on adjacent bands As was mentioned SM RF calculates attenuation for other than calibration freq...

Page 53: ...cable is identified by its unique ID number There are more than thirty 30 built in precise models of common coaxial cables types to choose from There is one special cable called Lossless 50 which is...

Page 54: ...r is generated from the opposite side of the coupler it has impact to level of reflected sample On U I couplers where U and I samples are equal in amplitude under matched conditions it causes false tr...

Page 55: ...SOR s 2 data to SENSOR 1 CONTROLS 1 DATA Sets data going to be copied HiPWR ALARMS copies High Power Alarms LoPWR ALARMS copies Low Power Alarms SWR ALARMS copies SWR Alarms PSK ALARMS copies PSK Alar...

Page 56: ...alarm types later Each alarm type can trip three different user adjustable levels of importance These levels are WARNING ALARM and FAULT WARNING represents the lowest level of importance ALARM middle...

Page 57: ...resets alarm Alarm can be reset also remotely from the remote control application running on the computer It is recommended to use MANUAL reset for FAULT level of alarms which makes you aware of crit...

Page 58: ...sistors and radio is consequently connected to misbehaving load If you like your equipment never do this Proper sequence when SWR gets high is to force radio to stop generating power as quickly as pos...

Page 59: ...state by MOX button in FSK RTTY mode CONTROLS 1 SOUND Selects sound for audible alarm alert 2 CYCLE Sets number of sound repetitions 3 LEVEL Sets volume of the sound 4 TRY Allows to check the sound 5...

Page 60: ...breaks power generated by the radio TX BREAK YES If output power will be higher than 180W SM RF will generate ALARM and FAULT level alarms with the same actions and reset conditions as above but at d...

Page 61: ...W W PWR to 1100W A PWR to 900W and F PWR to 200W While power will be larger than 1150W everything will be OK and no LOW POWER alarms will be generated However if power drops and be in between 1100 115...

Page 62: ...be lower than 1220W everything will be OK and no HIGH POWER alarms will be generated However if power rises and be in between 1220 1250W SM RF will generate WARNING indicating that the amplifier is b...

Page 63: ...nother special SM RF s unique advanced type of alarm Of course detection of real arcing with just sensor is not technically possible but it is possible to detect side effect of the arcing and it is sh...

Page 64: ...microHAM 2015 All rights reserved 13 DATA STRUCTURE DIAGRAM 64...

Page 65: ...peratures at a plane of LOAD connector to the plane of SMA sample connectors These data are stored in this EEPROM memory When sensor is attached to the SM RF and is powered up for the first time SM RF...

Page 66: ...0MBit s networks On LAN SM RF uses TCP and UDP protocols and provides two internal servers for standard remote access HTTP SERVER HTTP server is designed for basic maintenance of the SM RF from Intern...

Page 67: ...y irrecoverably corrupt data and backups in the SM RF memory Proper procedure is 1 Backup config 2 Update firmware 3 Restart SM RF 4 Restore config 5 Restart SM RF Config Backup Restore function at Fi...

Page 68: ...able for Windows OS X Linux Raspberry Pi Android and iOS systems To access SM RF from the viewer first make sure that the SM RF is connected to your local network and has assigned IP address Go to SYS...

Page 69: ...tive session can be assigned for auto connect when Connect after start up box is checked 3 Options Switch to COMPACT mode after connected Remote Control starts in COMPACT mode Preserve window layout r...

Page 70: ...for the TOP BAR GRAPH 11 BOTTOM BAR GRAPH RANGE Sets range for the BOTTOM BAR GRAPH 12 CONNECT DISCONNECT Connects or disconnects to active session 13 LAT BW Shows current latency and occupied bandwi...

Page 71: ...low Dot or Bar mode Point of measurement Sensor point and antenna point for all measurements Power ranges 5 range multipliers x0 1 x1 x10 x100 1000 and 3 linear scales 10 20 50 for total 14 full scale...

Page 72: ...20 up to 500MHz Relative Power accuracy 4 CHF 3 0 1 1W 3 1W 600W 2 600 3000W 2 5 from 1 8MHz 54MHz CVHF 2 0 3 3W 3 3W 2000W 2 at 70MHz 0 2 2W 3 2W 2000W 2 at 145MHz 0 1 1W 3 1W 400W 2 400 2000W 2 5 at...

Page 73: ...6 Operating temperature range 20 to 60 C sensor Dimensions W 88mm D 150mm H 47 79mm body incl connectors Weight 460g CVHF 2 Operating frequency range 70MHz to 500MHz directional coupler Characteristic...

Page 74: ...0g CHF 6 Operating frequency range 1 8MHz to 54MHz U I type sensor Maximal Power 6000W ICAS 4000W CCS RF ports connectors Power side 2x 7 16DIN female meter side 2x SMA female Input Return Loss TBD In...

Page 75: ...ay or the warranty is voided The warranty does not cover damage caused by improper or abnormal use failure to follow instructions improper installation lightning or excessive power The product will be...

Page 76: ...ence received including interference that may cause undesired operation European Union Declaration of Conformity microHAM s r o declares that the product Product Name RF VECTOR SIGNAL METER Conforms t...

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