| Page 1 of 2 | 1 | 2 |
|
|
ARX2B Ringo Ranger
I was recently given a Ringo Ranger. I downloaded the manual and found out
that I'm missing a radial kit. Is it needed? How can I cheaply home brew the radial kit? Randy ka4nma |
You can buy the replacement (missing) parts direct from Cushcraft...at
least you could a few years ago when I odered some replacment parts for my 6M yagi. I believe there was a version simply called the Ringo (minus the Ranger part) which was just the antenna without any sort of groundplane radials. You might just try using what you have and see what the SWR is like and/or how well it works. Scott N0EDV Theplanters95 wrote: I was recently given a Ringo Ranger. I downloaded the manual and found out that I'm missing a radial kit. Is it needed? How can I cheaply home brew the radial kit? Randy ka4nma -- Scott http://corbenflyer.tripod.com/ Building RV-4 Gotta Fly or Gonna Die |
"Theplanters95" wrote in message
... I was recently given a Ringo Ranger. I downloaded the manual and found out that I'm missing a radial kit. Is it needed? How can I cheaply home brew the radial kit? Randy ka4nma Randy - Scott is partially correct. In the early 1970's Cushcraft introduced the "Ringo" series (AR-xxx) for a number of VHF bands (10 meters, 6 meters, 222 MHz, 440 MHz) - both amateur and commercial (business band). http://www.cushcraft.com/support/pdf/951284.pdf The "Ringo Ranger" series (ARX-xxx) was developed a couple of years later. At first this antenna did NOT have the radials that you are missing. http://www.cushcraft.com/support/pdf/951289.pdf The "Ringo Ranger II" (ARX-xxxB) was introduced a number of years later (late 1980s) and this model added the Radial Ring and radials at a fixed distance below the Ranger. http://www.cushcraft.com/support/pdf/951290.pdf Greg w9gb |
"Theplanters95" wrote in message
... I was recently given a Ringo Ranger. I downloaded the manual and found out that I'm missing a radial kit. Is it needed? How can I cheaply home brew the radial kit? Randy ka4nma I would imaging that your Ringo Ranger never had the radial kit, because it is not a Ringo Ranger II. As Scott mentioned, you can purchase the specific parts from Cushcraft to convert your Ringo Ranger to a Ringo Ranger II (these part numbers can be found in the assembly / instruction manuals) Cushcraft actually had a upgrade kit (specific parts as one order) in the 1970s and early 1980s -- for earlier Ringo buyers to "upgrade" their Ringo models to the Ringo Ranger model. w9gb |
Randy:
I noticed nobody answered question 1. When the original Ringo was introduced, performance reports were all over the map. Some worked fantastically well, others fantastically poorly. It was finally discovered the difference was due to mast and feedline radiation. Sometimes the lengths were right to radiate well, other times, the antenna radiation was canceled by unwanted from the support and feed. So, the radial kit was added. Four radials just over a quarter wave (20 inches seems to work well), but I don't recall the exact position on the antenna. Just below the feedpoint seems right, but I defer to CushCraft if you can get the location from the Ranger II manual. -- Crazy George Remove N O and S P A M imbedded in return address "Theplanters95" wrote in message ... I was recently given a Ringo Ranger. I downloaded the manual and found out that I'm missing a radial kit. Is it needed? How can I cheaply home brew the radial kit? Randy ka4nma |
"Crazy George" wrote in message
... Randy: I noticed nobody answered question 1. When the original Ringo was introduced, performance reports were all over the map. Some worked fantastically well, others fantastically poorly. It was finally discovered the difference was due to mast and feedline radiation. Sometimes the lengths were right to radiate well, other times, the antenna radiation was canceled by unwanted from the support and feed. So, the radial kit was added. Four radials just over a quarter wave (20 inches seems to work well), but I don't recall the exact position on the antenna. Just below the feedpoint seems right, but I defer to CushCraft if you can get the location from the Ranger II manual. -- Crazy George CG & Randy - Correct about the Ringo and original Ringo Ranger performance reports -- some lamented that it was the best dummy load Cushcraft ever built ! I liked mine, and actually used a Ringo Ranger at 200 feet hung upside down (for proper radiation pattern) for a repeater's transmitting antenna in 1976 - with great results. We replaced it 2 years later -- with a heavy duty commercial unit (that could take the wind abuse). The Ranger II has a coax of specific length between the radial ring and Ranger -- so that the distance of the radials is correct. This is covered in the Ranger II manual. http://www.cushcraft.com/support/pdf/951290.pdf So, you have a standard Ringo Ranger and you can purchase the parts from Cushcraft - IF you desire to upgrade it to the Ranger II model !! Greg w9gb |
In article 6NWdd.225660$wV.134835@attbi_s54,
"w9gb" wrote: The Ranger II has a coax of specific length between the radial ring and Ranger -- so that the distance of the radials is correct. This is covered in the Ranger II manual. http://www.cushcraft.com/support/pdf/951290.pdf So, you have a standard Ringo Ranger and you can purchase the parts from Cushcraft - IF you desire to upgrade it to the Ranger II model !! Greg w9gb Greg, Thanks for posting the URL to the RR .pdf file. The Ringo Ranger (standard) was the first ham gear I every purchased and it is still in use today (27 years later). Dick, aa5vu (the RR was purchased when I was wt7aan) |
|
If the radials are to decouple feedline radiation, then why wouldn't coax
coiled into a choke balun work? Maybe 6 or 10 turns at about 5 or 6 inches? Randy |
|
| All times are GMT +1. The time now is 07:23 PM. |
|
Powered by vBulletin® Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
RadioBanter.com