|
|
|
Posted by: Ken N9VV Posted On: 05/22/00 Subject: PSK-20 QRP Panoramic Transceiver review Message Posted: Hi fellow QRPers. I just finished building the PSK-20 PSK31 transceiver kit from Dave Benson NN1G. You may have heard about it at Dayton or you might have seen the wonderful writeup in the June 2000 issue of QST where Howard (Skip) Teller and Dave Benson wrote a seven page article all about the little gem. I have put together a website with some pictures of how it looks during building - and one picture of my amazed face when I contacted N5NE with clip leads and hot solder joints on the bench. The web address is shown below. You should also check out the eHAM reviews that are linked from my site. The Kit was reviewed by Rod N0RC in QRP-L and his text is alson on my site. All the reviews are RAVE REVIEWS and reflect the ease of construction and solid performance. I have stopped calling CQ DE N9VV/QRP and now sign just N9VV. No one believes me that I am actually running 2W to a Carolina Windom - hihihi. The PCB quality is superb. Plated thru holes and silk screening are typical of Dave's excellence in kitting. The parts are clearly marked and all large enough for even this fat-fingered OT. There are three surface mount (SMT) inductors that you simply need to press down while lightly touching with a soldering iron. Easy stuff for sure. Four toroids AND these are wound with normal hookup wire (not magnet wire that you have to strip). Couldn't be easier to align - just peak the RX and peak the TX and you are on the air. Literally 7 hours from start to first QSO - and I took breaks for a trip to Radio Shack for a 4.7pf cap and lunch (hihihi). If you have a computer with a soundcard you are ready for PSK31. You don't have to wire ANY connectors, but rather plug in AUDIO IN, AUDIO OUT, and PTT from a simple 9pin F F cable (RS part #). The software is amazing in itself as it is the first PANORAMIC display DigiPan from Skip KH6TY (link on my site). You will be astonished if this is your first look at the next generation of DSP tuning. You have NO TUNING KNOB. The software is so sharp that you simply point-and-click on the frequency you desire and start typing! This Sunday I counted 22 stations packed in every 50hz of space between 14.0695 and 14.0705. Tremendous DX activity all day. This new Panoramic transceiver and panoramic no tune software is a huge design leap forward in hamming. Set your dial to 14.073 LSB and the software does the rest. Yeah, I know about the narrow filter crowd that thrives on ever smaller non-ringing variations in the IF. Well suspend belief - this transceiver has a 4Khz bandwidth and XTAL control for rock solid stability. The broad bandwidth is specifically designed to work with the new DigiPan software. If you grew up using CW in the 60's you were used to wide bandwidths and "tuning" in your head. Harry, W9TT, taught me those skills on the NTS. We are back to that era with wideband signal display and super NARROW DSP software that I bet is better than your transceiver IF at 31.5hz Please take time to check out this wonderful new keyboard to keyboard style QSO. It is easier than RTTY, conserves bandwidth and works better with weak signals (QRPp) like no other mode - copies right into the noise. You won't see a signal or hear it but the characters march across the screen. Thanks Dave and Howard for sharing your engineering and kitting expertise with those of us mere mortals. dit dit ![]() |
|
Follow Ups: |
|
|