Related Manuals for QRP Labs QDX
Summary of Contents for QRP Labs QDX
- Page 1 Product Reviews March 2023 Juntek JDS2900 SeeSii JDS6600-60M FeelElec FY8300-30M Siglent SDG-1032X Rigol DG1062Z Function/Arbitrary Waveform Generator...
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Page 2: Product Review
This includes everything in WSJT-X, JS8Call, some the QDX and the QRP Labs 50 W PA. The PTT output fl digi modes e.g. RTTY, Olivia and more. QDX is not can also be confi gured for use with any other amplifi er. - Page 3 COM port (audio and USB fl ash drivers are already present, even on older versions of Windows). The details can be found in the QDX manual. I made the connection between the QDX and my laptop via a Figure 3 —...
- Page 4 13.2 V under normal operating condi- There are no relays within the radio. All switching is tions. The power output of the QDX is strictly a function done with PIN diodes. I have used the radio only for of input voltage and not related to audio drive.
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Page 5: Signal Generators
I fi nd that, compared to other QRP FT4/FT8 table, although the small size of the QDX makes it easy setups I have used, the signal-to-noise ratio appears to to set up nearly anywhere. I have a portable aluminum be much better with the QDX. - Page 6 Table 2 Signal Generators Manufacturers’ Specifications (not tested in the ARRL Lab) Models JDS2900 and SDG 1032X Rigol DG1062Z JDS6600-60M Display 2.4-inch TFT color LCD 4.3-inch TFT color LCD 3.5-inch TFT color LCD Max frequency of sine wave 60 MHz 60 MHz 60 MHz Max frequency of square wave...
- Page 7 show a square wave, but adjusting the amplitude of JUNTEK JDS2900 the square wave will be refl ected in the number on the screen, not the height of the picture. A white illuminated dot on the screen tells you which item is active and will respond to control changes.
- Page 8 which is exactly what can be found in the Quick Guide. Another number listed in Table 2 is the waveform verti- As an example, if you want a 3.1 V half sine wave with a cal resolution (14 bits, or 214, which is equal to 16384 2.5 V offset, a frequency of 18 MHz, and output on counts).
- Page 9 The documentation for the two models is slightly differ- SeeSii JDS6600-60M ent. The JDS2900 comes with both a mini CD and a small quick-start booklet, and the JDS6600 comes with a larger instruction summary book. The CDs are similar, and the company name (Hangzhou Junce Instruments Co., Ltd.) is the same.
- Page 10 FeelElec FY8300-30M — An Example of Common Hardware in the Online Marketplace from an unknown brand over the internet. I shopped online for a low-cost signal generator, just like any ham would do, and found out after the fact that it was no longer supported.
- Page 11 RIGOL DG1062Z Function/Arbitrary Waveform Generator Figure 7 — The SIGLENT SDG 1032X rear panel. PC, LAN, and other input/output connections are made through this set of con- nectors. Ins and Outs on the Rear Panel Adding to the fl exibility is a set of connectors on the rear panel (see Figure 7).
- Page 12 8 mega points (Mp) devoted to the waveform construc- nique is beyond the scope of this review), this connector tion. Extra memory in some models increases this to can be used to insert the code for your unique wave- 16 Mp. For some applications, the claimed stability of form or to store and make available to a similar unit the the square wave generated is jitter of less than 300 ps current waveform.
- Page 13 In the lower right corner, a third BNC connector feeds Feedback an internal frequency counter. The counter is selected In the January 2023 issue of QST, Figure 2 in “Antenna by a button just above and to the right of this BNC, and Switch for Three Remote Operating Locations”...
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