Re: [digitalradio] my thoughts about ROS (was Ros on 40m)
I think Dave sums it up to how most of us feel about Jose and ROS! just my 2 cents worth...73, Alan
Re: [digitalradio] ROS
Thank you, now we know truth. Guess I better stay clear of it till the determination is officially posted...73, Alan Earlier this morning, I called the FCC to confirm the FCC: ROS LEGAL IN USA assertion made in http://rosmodem.wordpress.com/ http://rosmodem.wordpress.com/ I asked for confirmation that the FCC had deemed ROS legal for use on HF by US amateurs. When asked for a case number, I provided the case number given on the above web page -- but was informed that this case number refers to a password reset request, not ROS. I asked if I could speak with agent 3820, and was immediately connected; her name is Dawn. I gave Dawn the above URL, and read her the salient paragraph. She said that the information about ROS legality posted on the above web site was not accurate. Dawn went on to say that FCC staff members were working on this issue, and asked me to not make public comments until further progress had been made. She offered to call me at that time. Dawn called me a few minutes ago, and stated that FCC staff consider the information on the above web page to be out of context and misleading. She further stated that FCC staff is working with the ARRL on this issue, and that the outcome will be publicized by the ARRL. Dawn expects this to happen soon; there is nothing related to ROS posted on http://www.arrl.org/ http://www.arrl.org/ as of a few minutes ago. Note that all telephone conversations with FCC personnel are recorded. 73, Dave, AA6YQ -- Keep up with Ham radio in the Bitterroot: http://bitterrootradio.ning.com/ Linux Mint - The Free O/S that you'll love! http://www.linuxmint.com/start/helena/
Re: [digitalradio] OFF TOPIC
Ri ck, I`ve built both. I`ve compared them side by side and the slimjim wins. I could hear and get into repeaters with the slimjim that I could not with the jpole. Plus it matches much easier and is easier to build than the jpole. I always used the 450 ladderline to build the slim jim. The tv twinlead is a lot harder to work with. The one advantage of the jpole I found was that when you made it out of copper it was easier to mount. To mount the slimjim from the bottom. I put the ladderline in 1 in pvc and really taped a fiberglass rod to the side of it. Then I mounted the ant by clamping the fiberglass rod to a metal mast and it works good. Note, enclosing the ladderline will change the optimum feed point...hope this answers your question...73, Alan Why do you prefer the SlimJim over the J-Pole? LB Cebik did an in depth comparison of the two antennas and found the J-Pole to be slightly better in performance. Recently, our club had a J-Pole antenna building party and it was difficult to get them tuned up where we wanted them using TV twinlead. My best success with homebrew verticals has been when I used 450 ohm slotted line, but I have never tried building the SlimJim's. Maybe they are easier to match? 73, Rick, KV9U Alan Wilson wrote: You can build 2m slimjim out of 450 ladderline for less than 5 bucks...Look on http://www.hamuniverse.com, http://www.hamuniverse.com, I've built several and they are very easy to construct, easier and better than the jpole...73, Alan
