N1AUP
| Joined: | Sat, Apr 4th 1998, 00:00 | Roles: | N/A | Moderates: | N/A |
Latest Topics
| Topic | Created | Posts | Views | Last Activity |
|---|---|---|---|---|
| Windom antenna. How to design the choke. | Feb 14th, 15:40 | 2 | 266 | on 14/2/19 |
| HDSDR is not working. | Feb 15th 2018, 18:43 | 2 | 2,177 | on 26/2/18 |
| Windom for 80 - 10. Choke or not choke? | Jan 25th 2018, 15:22 | 2 | 1,150 | on 25/1/18 |
| Support for wire antennas. Wire or rope? | Jan 25th 2018, 06:19 | 3 | 1,276 | on 25/1/18 |
Latest Posts
| Topic | Author | Posted On |
|---|---|---|
| Windom antenna. How to design the choke. | N1AUP | on 14/2/19 |
| I built an 80 meter Windom antenna following these instructions. http://www.hamuniverse.com/k4iwlnewwindom.html As I understand things, I have to build a choke to keep RF off of the coax feedline. I bought 1 foot worth of ferrite cylinders, and am going to put them on a piece of RG8X cable. The plans suggest that I need ten feet of coax between the antenna balun and the beginning of the choke. I've also read that you don't need the 10 foot section. Does this antenna need a choke? What distance from the antenna feed point does the choke have to start? Is 10 feet the right length? I think the 8x that I bought at HRO has a foam dielectric. Thanks N1AUP |
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| HDSDR is not working. | N1AUP | on 26/2/18 |
| Problem solved. I found the entry "Options / Misc Options / Reset to factory settings". That fixed whatever was not set right in the software. |
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| HDSDR is not working. | N1AUP | on 15/2/18 |
| I purchased an RTLSDR box off of Ebay, to use as a PAN adapter for a Kenwood TS590SG. https://www.ebay.com/itm/US-100KHz-1-7GHz-Full-Band-U-VHF-RTL-SDR-USB-Tuner-Receiver-R820T-8232-Radio/131452779473?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649 When I run HDSDR, I don't see any signals showing up on the PC screen. Here is what I've done so far. I confirmed the Kenwood is putting signal out on the DRV port, by patching same into the SO239 on a second receiver. I connected the SDR to the PC, installed the Zadig drivers, Omnirig, and HDSDR. SDRSharp works. I see signals, and hear audio that matches what is coming in on the Kenwood if I manually sync the two. HDSDR talks to the Kenwood just fine. Changes frequency and mode. When I run HDSDR though, I see no signals on the screen, and hear no audio coming out. I'm betting that I have the software set up wrong, but after hacking around for four weeks, I'm no closer to finding a solution. Is there someone who is intimately familiar with HDSDR who can talk me through settings to find out where I'm messing up? I'd love to get it working so I can see signals on the various bands. Thanks |
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| Support for wire antennas. Wire or rope? | N1AUP | on 25/1/18 |
| Thank you for answering both questions. First rate! Chris |
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| Windom for 80 - 10. Choke or not choke? | N1AUP | on 25/1/18 |
| I'm putting up a home brew WIndom antenna. I read the following articles to figure out how to put one together. http://www.packetradio.com/windom.htm and http://www.hamuniverse.com/k4iwlnewwindom.html The second article says that you need a choke on the coax feedline to set up a vertical radiating part of the antenna. The first article says that the choke isn't necessary. In fact, it says that the choke will make the antenna perform more poorly than if you leave it off. Which is correct? Thanks |
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