Database Fields in HDSpectrum™
Q: What database fields do I need to have in my files to use them with HDSpectrum?
A: Certain data fields are used by HDSpectrum. If you include these fields in a dBaseIV format file you can open it and use it as a source file for creating Intermod studies in HDSpectrum.
(Note that all values and settings in this article are for illustration purposes only. You should determine the appropriate settings for your application using good engineering judgment.)
For more information on the use and values for each field, see the article on Intermod Setup in HDSpectrum.
HDSpectrum Column |
Database Field Name |
Format |
Example |
Description |
IMD ID |
IMD_ID |
Numeric, 7 digits |
0000001 |
Record ID, each record should have a unique identifier, typically starting with 0000001 |
TX Use |
IMD_TXUSE |
Numeric, 2 characters |
-1 |
Include TX frequency in this record; -1 True; use frequency 0 False; do not use frequency
|
TX Ref Freq |
IMD_TXREF |
Numeric, 2 characters |
-1 |
Mark TX frequency in this record as a “Reference Frequency”; -1 True; reference frequency 0 False; not reference frequency
|
TX Freq |
IMD_TXFMHZ |
Numeric, maximum of 20 digits, 5 decimal digits |
455.12500 |
Transmitter frequency in MHz |
TX Offset |
IMD_TXOFFS |
Numeric, maximum of 20 digits, 5 decimal digits |
7.50000 |
Modulated band (in kHz) above and below transmitter frequency. |
TX Group |
IMD_TXGRP |
Numeric, maximum of 6 digits |
1 |
Transmitter group flag; zero (0) for no group |
TX Desc |
IMD_TXDESC |
Text, maximum of 40 characters |
My Transmiter |
Description of transmitter for this record |
TX Harmonics |
IMD_TXHARM |
Numeric, 1 character |
3 |
Number of harmonics (from 1 to 9, inclusive) to be included for this transmitter frequency |
Full Duplex |
IMD_FULDPX |
Numeric, 2 characters |
-1 |
Treat transmitter and receiver frequencies for this record as Full Duplex, meaning that the transmitter frequency can participate in intermod products affecting the receiver frequency from the same record -1 True; Full Duplex operation 0 False; not Full Duplex operation (simplex or half-duplex) |
RX Use |
IMD_RXUSE |
Numeric, 2 characters |
-1 |
Include RX frequency in this record; -1 True; use frequency 0 False; do not use frequency
|
RX Freq |
IMD_RXFMHZ |
Numeric, maximum of 20 digits, 5 decimal digits |
455.12500 |
Receiver frequency in MHz |
RX Offset |
IMD_RXOFFS |
Numeric, maximum of 20 digits, 5 decimal digits |
7.50000 |
Protected band (in kHz) above and below receiver frequency. |
RX Desc |
IMD_RXDESC |
Text, maximum of 40 characters |
My Receiver |
Description of receiver for this record |
Copyright 2006 by SoftWright LLC