1. Manuals
  2. Brands
  3. TelePost Manuals
  4. Adapter
  5. LP-PAN
  6. Operating and assembly manual

TelePost LP-PAN Operating And Assembly Manual

Software defined iq panadapter
Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
LP-PAN
Software Defined
IQ Panadapter
Operating &
Assembly Manual
April 2009
TelePost Incorporated
Rev. D7
1

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the LP-PAN and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Summary of Contents for TelePost LP-PAN

  • Page 1 LP-PAN Software Defined IQ Panadapter Operating & Assembly Manual April 2009 TelePost Incorporated Rev. D7...

  • Page 2: Table Of Contents

    Appendix A ......................28 Copyright and Trademark Disclosures LP-PAN is a trademark of TelePost Inc. Windows® is a registered trademark of Microsoft Corporation. Material in this document copyrighted ©2007,8 TelePost Inc. All rights reserved. LP-Bridge copyrighted ©2007,8 TelePost Inc. All rights reserved.

  • Page 3: Introduction

    Read Carefully Before Continuing. Assembling LP-PAN is a straightforward job, and you should have no trouble if you follow the instructions. Take special note of the connection diagram, and become familiar with the basics of how the various components fit together in the system.

  • Page 4: Parts List

    Parts List - Subject to change without notice. Pictures shown at end of parts list. Pre-installed SMT parts Quantity Designation Description 5 C5,11,18, 31, 39 0.01uF 2 C4, 6 0.1uF 1 C7 1 C9 0.22uF 1 L4 10uH 1 L8 12uH 0 L9,10 0.11uH (alternate to L11,12)
  • Page 5 Parts List – Cont’d Quantity designation Value 6 L1,2,3,5,6,7 1mH RF Choke (br-bk-rd) Fig. 5 1 Q1 MPS5179 transistor Fig. 10 2 R2,31 10 ohm 1/8W res. (br-blk-bk) Fig. 12 4 R9,17,18,34 1K 5% 1/8W res. (br-blk-rd) Fig. 12 4 R10,14,15,16 1.1K 1% 1/8W res.
  • Page 6 Parts List – Cont’d Fig. 19 Fig. 16 Fig. 17 Fig. 18 Fig. 20 Fig. 21 Fig. 22 Fig. 23 Fig. 24 Fig. 25 Fig. 26 Fig. 27 Fig. 28...

  • Page 7: Assembly

    Assembly Important warnings – read this before starting assembly You should visually inspect all the solder pads/traces with a magnifier for any etching problems. This is done before shipping, but I recommend the builder do a second inspection as well. We do 100% continuity checks of all pads before shipment using computer controlled flying probes based on PCB netlist coordinates.
  • Page 8 Digital Multimeter NOTE: The LP-PAN is an intermediate level kit. I would peg the assembly time at about 2-3 hours, plus some reading through the manual in advance, and some time for calibration afterward. Take your time, and double-check your work, and you should have no...
  • Page 9 Assembly Cont’d Step-by-step assembly instructions. Below is a picture of the assembled PCB. The SMT parts come pre-installed. The component layout diagram on page 7 provides another aid to component identification. Units after #309 will be ever so slighlty different… mainly in the area of C41 & C43. It is recommended that you print at least this portion of the manual to allow for easy reference while building, and to allow you to check off the steps as you complete them.
  • Page 10 Assembly Cont’d  Install all 0.1 uF caps (marked 104).        Install all .01 uF caps (marked 103).          Install remaining ceramic disc and SM caps, and the two trimmer caps. ...
  • Page 11 11-16 VDC. The dashed white lead on the supplied power cable is the + lead (center pin). The green LED should light. Using your DMM, check for 5.0 VDC (+/- 0.25V) at pin 3 of U1 (the pin connected to C3). Monitor total current draw of LP-PAN using the DMM or current meter on a power supply.

  • Page 12: Installation And Setup

    System Overview Before starting, it helps to read this section in order to understand the basics of how the K3, LP-PAN, PowerSDR, Sound Card and LP- Bridge (or HRD) work together. In general, the duties of each part of the system are as follows: LP-PAN –...
  • Page 13 Links to detailed installation instructions for each of the recommended sound cards are provided there. Connecting the K3 to LP-PAN Connect the RF input of LP-PAN to the IF output of the K3 using a short, high quality 50 ohm jumper cable with male BNCs on each end.
  • Page 14 Installation and Setup cont’d Special note for European users: In Windows control panel, open the "Regional and Language Options" panel, select Regional Options, and then Customize. Select "." (period) for Decimal Point, Select "," (comma) for Digit Grouping Symbol. This is normally reversed in most of Europe. The version of PowerSDR that we based our sub-version on does not understand European numbering.
  • Page 15 All other settings can be left as they are for now. Click Apply and close the Setup window. On the main PowerSDR screen, click on the Standby/On button in the upper left and you should hear LP-PAN on your sound card monitor speaker.
  • Page 16 RX ANT input of the K3, and select RX ANT. Adjust your sound card inputs for a displayed level of –73dBm. If you run out of range on your sound card input, you can adjust R29 on LP-PAN as well. The pot has about 8dB range. If you have an adjustable generator, you can check sound card gain for proper dynamic range limits.
  • Page 17 Global Offset adjustment – LP-Bridge provides an offset value to PowerSDR which keeps the IF center frequency of PowerSDR synchronized with the K3. Due to slight differences in the reference oscillator in the K3 and the local oscillator of LP-PAN, you must make a small adjustment to bring the two into exact zero beat.
  • Page 18 Installation and Setup cont’d To fine tune the Global Offset, tune in a carrier to a comfortable pitch on the K3. Turn the volume of the sound card monitor up so that you hear the output of PowerSDR at about the same level as the K3. The two tones should be similar, but probably not exactly the same pitch.

  • Page 19: Operation

    Operation LP-Bridge Operation Normal View Menu Bar... Along the top of the window. There are three pulldown menus. File: Only has one choice, "Exit". You can also exit cleanly by using the X in the upper right of the LP-Bridge window. Your curent settings are saved on exiting.
  • Page 20 Operation cont’d LP-Bridge Operation Setup View Terminal Windows... These let you view traffic to and from the K3 for the serial port, and to and from applications for the virtual ports. Each window shows the last 100 comm events, and can help you track down a problem. For instance, if an application is not polling for a certain command, or you want to verfiy that it is getting a response that is not being properly displayed.
  • Page 21 It can be disabled by selecting MON in PowerSDR if you want to hear your transmit signal. PowerSDR always displays the spectrum of your low level transmit signal. Hardware mute is also provided by LP-PAN, but will not be needed by most operators. In general, LP- Bridge will provide fast enough muting to handle muting in software for VOX or semi-break-in CW keying.
  • Page 22 Operation cont’d Filter… Selects PowerSDR DSP filters. These can be set differently than K3 if desired (for instance to listen to a wider CW passband than what is selected in K3). Width and Shift… Apply to PowerSDR IF shift controls. RX EQ…...

  • Page 23: Using Lp-Pan With Cw Skimmer

    Using LP-PAN with CW Skimmer First, make sure that LP-Bridge/PowerSDR are set up correctly, and that the offset tracks between the K3 and PowerSDR (signals tuned in on the K3 match the pitch of signals tuned in on PowerSDR). This is covered in the manual under the Global Offset calibration.

  • Page 24: Circuit Description

    Values shown are for Elecraft K3. The signal has a very wide bandwidth, and is bandpass filtered down to about 400 kHz in the front end of LP-PAN. This helps with out of band signals that are strong enough to get by the K3’s input filters, and also blocks mixer products that are present in the K3’s IF output.

  • Page 25: Schematic

    Schematic Note: A high resolution version of the schematic is available on the LP-PAN web page next to the think for the manuals.

  • Page 26: Troubleshooting & Support

    FTDI chipset. The KUSB adapter sold by Elecraft does not, and will likely cause problems. Support is available from TelePost at larry@telepostinc.com anytime, or 734-455-3716 during normal business hours. There is also a Yahoo User Group at http://groups.yahoo.com/group/LP-PAN/ with a large number of helpful users.

  • Page 27: Specifications And Warranty

    If failure occurs within the warranty period, return the LP-PAN to TelePost Inc. at your shipping expense. The device will be repaired or replaced, at our option, without charge, and returned to you at our shipping expense. Repaired or replaced items are warranted for the remainder of the original warranty period.
  • Page 28 Under no circumstances is TelePost Inc. liable for damage to your amateur radio equipment resulting from use of the LP-PAN, whether in accordance with the instructions in this Manual or otherwise.

Table of Contents