JT9 anyone?

I have been reading about JT-9 recently. It seems that since Joe Large has discontinued support for JT-65HF (due to health issues), JT9 is filling the bill. Has anyone tried JT9 yet? What about the new integration with JT-Alert? I think I will have to give it a try this week.

I also fond out that JT-1 is the typical mode used on HF. You can also use JT9-30 which means each interaction sis 30 minutes. Surely, this cannot mean we transmit for 30 minutes at a time. That is for really weak signal work.

Problems with the Tripp Lite Keyspan USA-49WG

When I got the Ten Tec Orion 2, I needed a real serial port. I thought this would be a good time to get one a 4 port USB – Serial converter. I opted for the Keyspan USA-49WG as I have had good luck with that brand on my Mac. It has worked mostly OK, but I do get random blue screens of death ( BSOD ). The crash dump reports the 49WG driver. I opened a ticket with Tripp Lite on 28 Dec 2012. I will report back on what happens. Note I am running this with Windows 7 Ultimate 64 bit on a Dell XPS PC (that was for the search engines).

September 2012 QST Cover Plaque

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20121227-020352.jpgThe ARRL Southeast Division Vice-Director presented this award at the 2012 Tampa Bay Hamfest in December. It now enjoys a coveted spot on my office wall. Thanks for everyone’s support and encouragement in writing and reviewing this article for me. Thanks also to everyone that voted for my article on the ARRL’s website.QST-Cover-2012-09-Detail

How do I find out the address of an Icom RP2C DStar Controller?

I have an Icom DStar repeater that I support. While testing, I changed the default IP address of the Icom DStar controller from the default 172.*.*.* address. The question is how to find out what I changed it to? I have a non-routable class C address on my home network (192.168.1.*). I presumed I set it to something in that subnet. I tried nmap to so a ping scan with this command nmap -sP 192.168.1.* but that did not work. Note I did verify the Icom controller DOES respond to a ping.

I used tcpdump to watch the Ethernet NIC and I saw a bunch of arp requests. One of the source IP addresses 192.168.1.239. I then pinged this one and it replied. While the ping was running, I unplugged the network cable from the front of the Icom controller and the ping stopped replying. So, it looked like I confirmed the address. In the RP2C software, I changed the address to the 239 address, entered the password and it worked!

Icom 775DSP For Sale

The rig is sold.

 

I have an Icom 775 DSP (Serial #1185) for sale.

The rig is in great shape, works flawlessly and has ALL optional filters except for the AM filter. Internal Antenna tuner, 200 watts output, built-in power supply. Dual-Watch complete with 2 VFO knobs for ease of listening to the receive side of a pile-up. I have the manual, but no microphone as I use a headset.

I wil be taking to the Tampa Bay hamfest but I figured I would offer to fellow FCG’ers first.

Due to the filter complement, the price is $2000. Shipping is extra at actual cost from the shipping store.

I am selling simply as I have a Ten Tec Orion II and it seems silly to let this great radio go underutilized.

Don’t forget I also have the Ten-Tec Titan 425 1500 Watt amplifier for sale. It will be at the Tampa Bay hamfest too.

Remote Switched Coil for 80m and 160m with a 43′ vertical.

As many of you know, I have a Zero-Five 43′ vertical that I–in concert with the Alpha 9500–managed to set on fire. My 43 foot antenna works OK on 80m (good worldwide DX) and even decent range on 160m, but I have a terrible VSWR on 80 and 160. My Palstar and Ten Tec 238 manual tuner can handle it even at 1500, but rather than have such terrible losses in my 150 feet of coax, I decided it would be a fun project to build a remote-switched coil setup that will work with my UNUN for the rest of the bands. You can read more about the project from the website of Phil Salas, AD5X. Phil has a great website with articles describing his work and analysis of the 43 foot vertical.

Normally I stay away from MFJ gear, but Phil listed them as a source for the coil for 80 and 160. As this is just a single coil with no moving parts, I figured I was safe in using the MFJ part. 🙂 I ordered the coil and insulators from MFJ last week. I need to get the relay from Array Solutions and some parts from Mouser.

I will still need a tuner with this for 60 – 10 and for that, I am anxiously awaiting the arrival of the Alpha 4040 4KW auto antenna tuner. It is shaping up to be quite the box.

I will update my site as I progress through the project along with some pictures. Fall is a great time for antenna projects in Florida and what better than getting ready for winter DX on 80m and 160m?