Re: Outer Coaxial Jacket Removal for a Long Length
That's basically what I said. All that is needed for a vertical "dipole" is a quarter wavelength of wire and a common mode choke a quarter wavelength back down the shield. The outside of the coax
By
Jim Shorney
·
#75776
·
|
Re: Outer Coaxial Jacket Removal for a Long Length
Michael, You could put a clamp-on choke 1/4-wave down the coax, coil the coax up at that point as a choke, or just slide a 1/4-wave piece of copper tubing over the coax and solder the braid to it. 73,
By
rls19
·
#75775
·
|
Re: RV75 Issues
Which Jim? :D Well, if he would quit using the Steve font.... 73 -James "Rick K8EZB" <frboswell@...> wrote: -- 73 -Jim NU0C
By
Jim Shorney
·
#75774
·
|
Re: RV75 Issues
I do have a list. I'll see if I can dig it up for you a bit later. "Rick K8EZB" <frboswell@...> wrote: -- 73 -Jim NU0C
By
Jim Shorney
·
#75773
·
|
Re: KLM 20-30-6LPA Wind Load Information and Tower Recommendation
Hi Mitchel, There isn¡¯t a standard height, but my guyed Rohn towers range from40 feet to 70 feet. While I have two Yagis per band 20, 15 and 10m, plus one on 40m, on long skip the 20m Yagi at 70
By
Rob Sherwood
·
#75772
·
|
Re: KLM 20-30-6LPA Wind Load Information and Tower Recommendation
I forgot to mention the height. ?My understanding is that a 50 foot tower height is a standard height. ?Being this is approximately 15 meters, a full wave length height for the 15 meter band, the
By
Michael Smith
·
#75771
·
|
Re: RV75 Issues
Peter, Thanks for the additional info. Only because Jim did. That's mild compared to what some call me!? ;-) RB
By
Rick K8EZB
·
#75770
·
|
Re: RV75 Issues
Rick: On the RV-75.... Confirm the broken resistor IS a *10K ohm, *like the one next to it. The *burned *one on the side of P/J 206 is *150 ohm.* The manual instructions for programming the dip switch
By
VE7PS
·
#75769
·
|
Re: Photo Notifications
Rick Yes, same value as the one above it. Nigel wrote:
By
nigel patterson G3YDT
·
#75768
·
|
Re: RV75 Issues
Steve, Yes, good catch! I was so preoccupied with the obvious failed resistor that I overlooked the other failed resistor. Jim, My first thougfhts as well. With two failed resistors it makes no sense
By
Rick K8EZB
·
#75767
·
|
Re: Photo Notifications
Rick, found it. Nigel
By
nigel patterson G3YDT
·
#75766
·
|
Re: RV75 Issues
Rick I just can't figure it out. Nigel wrote:
By
nigel patterson G3YDT
·
#75765
·
|
Re: KLM 20-30-6LPA Wind Load Information and Tower Recommendation
I believe M2 can help with that. https://www.m2inc.com/? 73, W8GYV
By
Bill VE3ES <ve3es@...>
·
#75764
·
|
KLM 20-30-6LPA Wind Load Information and Tower Recommendation
I¡¯m considering putting up the subject antenna. ?KLM is no longer in business to ask them for information. ?Does anyone know the wind load rating and survival wind speed? Also, this antenna weighs
By
Michael Smith
·
#75763
·
|
Re: RV75 Issues
Right off the top of my head is you may be seeing power source issues due to failed caps. The Capars are evil incarnate, but it would not be a bad idea to recap all of the electros. I have too many
By
Jim Shorney
·
#75762
·
|
Re: RV75 Issues
Good catch. I missed that one. 150 Ohms in the pic I attached. Looks like it is the resistor in series with L205. Better check CR207 for damage too. 73 -Jim NU0C "VE7PS" <ve7ps@...> wrote:
By
Jim Shorney
·
#75761
·
|
Re: RV75 Issues
Jim, Thanks for the quick reply and photo. Yes, based on your photo, it does look like 10K (keeping in mind that I am looking at the RV75 for the first time ever!). I am inclined to tack in a new
By
Rick K8EZB
·
#75760
·
|
Re: RV75 Issues
Rick: You actually seem to have TWO failed resistors there. One is just above P/J 206 in the pic - the one that's split in half...but if you look to the right of that P/J, you'll see another burned
By
VE7PS
·
#75759
·
|
Re: Photo Notifications
Looks to be the same value as the resistor right above it in the image. (Which, BTW ¡®looks¡¯ like it is close to failure as well, although the dark spot on it could be debris from the grenaded
By
Joe - W7RKN
·
#75758
·
|
Re: RV75 Issues
Looks like maybe 10K. Same as the one next to it. It does not seem to be shown on the schematic I am looking at. Side note: if you have any Capar brand electrolytics on the boards, REPLACE THEM. They
By
Jim Shorney
·
#75757
·
|