[Repeater-Builder] Re: Best coax for short jumpers in repeater cabinet?

> Thanks, Ron Here is more information on what we have. The HAAT is 122ft., we currently have a Maxrad MFB-1503 3db antenna and LMR400 coax. We are using a ST2 Midland at 110W and there is some type of older pre-amp installed with no tag, but has 6db hand written on it. Any suggestions for impr

[Repeater-Builder] Re: Best coax for short jumpers in repeater cabinet?

Without looking at the rest of the replies, I will comment here on the cable you have. replace that LMR400 with heliax. LDF4050A or better, LDF5-50A or equivalent You can get a good eal on Heliax and connectors from: The LDF5-50A is $2.55 per foot, less

[Repeater-Builder] Re: Best coax for short jumpers in repeater cabinet?

> I think the LMR400 is a double shielded with each shield > different metals. One braid and one foil. This is a no-no > for duplexed repeaters for the higher TX RF will generate > noise getting into receiver. Just to be clear... The dissimilar shield metals is the potential problem source

[Repeater-Builder] Re: Best coax for short jumpers in repeater cabinet?

If you're hitting the 195 Vaca Repeater it probably has a number of active voting receivers in operation. If you're talking about the 147.000 Vaca Repeater... it normally has a single mountain top receiver. The 145.470 Vacaville Repeater can be operational using various combinations of sing

[Repeater-Builder] Re: Best coax for short jumpers in repeater cabinet?

ilder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of skipp025 Sent: Saturday, May 10, 2008 12:10 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Re: Best coax for short jumpers in repeater cabinet? > I think the LMR400 is a double shielded with each shield > different

[Repeater-Builder] Re: Best coax for short jumpers in repeater cabinet?

Re: Best coax for short jumpers in repeater cabinet? It's easy just to use some practical rule of thumb guidelines for coax runs. One doesn't have to use ultra over kill coax in every application. How long? - Length being enough to cause a loss, desired or otherwise (...and yes there is more

[Repeater-Builder] Re: Best coax for short jumpers in repeater cabinet?

Hi Mark, Probably not ignored or unnoticed... but more related to how easy it is to find and of course the cost before applying at least some portions of the rules of thumb check list mentioned in my last post. Much of what many surplus equipment builders use is directly related to what we

[Repeater-Builder] Re: Best coax for short jumpers in repeater cabinet?

Sometimes "skipper-don't" type so well... yes I meant RG-223 and the Ebay Auction Example I listed in that post should clearly indicate the coax to be RG-223. Great and thanks for catching the typo. cheers, s. > "Adam T. Cately" <[EMAIL PROTECTED]> wrote: > > At 04:50 PM 5/11/08 -, yo

RE: [Repeater-Builder] Re: Best coax for short jumpers in repeater cabinet?

for short jumpers in repeater cabinet? > Thanks, Ron Here is more information on what we have. The HAAT is 122ft., we currently have a Maxrad MFB-1503 3db antenna and LMR400 coax. We are using a ST2 Midland at 110W and there is some type of older pre-amp installed with no tag, but has

RE: [Repeater-Builder] Re: Best coax for short jumpers in repeater cabinet?

Jeff, I think the LMR400 is a double shielded with each shield different metals. One braid and one foil. This is a no-no for duplexed repeaters for the higher TX RF will generate noise getting into receiver. I recommend at least 1/2" heliax. Know cost, but well worth the cost. 7/8" even

RE: [Repeater-Builder] Re: Best coax for short jumpers in repeater cabinet?

At 05:11 5/10/2008, Ron Wright wrote: At 122 ft HAAT you can get 30 miles to a mobile, but this is assuming flat terrain. To an HT not unless one is on a mountain or air plane, hi. I routinely hit the Mt Vaca repeater (2m, 2900ASL) from a hilltop (780ASL) 50 miles away. Most of the interve

Re: [Repeater-Builder] Re: Best coax for short jumpers in repeater cabinet?

ndle 1.8kw @950Mhz it works out great. Brent KF4TNP From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of skipp025 Sent: Saturday, May 10, 2008 12:10 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Re: Best coax for short jumpers in repeater ca

RE: [Repeater-Builder] Re: Best coax for short jumpers in repeater cabinet?

Looks like you and I are in the minority, Brent. I mentioned this same cable about a week ago, and it went virtually "unnoticed". :-( Mark - N9WYS From: Repeater-Builder@yahoogroups.com On Behalf Of KF4TNP RG-393/U M17/127 I use this cable in most runs in the transmitter buildings to

RE: [Repeater-Builder] Re: Best coax for short jumpers in repeater cabinet?

That's true too, Skipp. Hope to bump into you at Dayton, since we've talked on the phone and via e-mail! It'll be nice to put a face to the keyboard/phone voice! ;-) I'll look hard around the Brat vendor for sure!! BTW - I'll at least be wearing a tag with my callsign. Mark - N9WYS -Orig

RE: [Repeater-Builder] Re: Best coax for short jumpers in repeater cabinet?

epeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of KF4TNP Sent: Sunday, May 11, 2008 6:14 AM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Re: Best coax for short jumpers in repeater cabinet? RG-393/U M17/127 I use this cable in most runs in the transmitter b

RE: [Repeater-Builder] Re: Best coax for short jumpers in repeater cabinet?

At 5/11/2008 08:52, you wrote: >Looks like you and I are in the minority, Brent. I mentioned this same >cable about a week ago, and it went virtually unnoticed & :-( > > > >Mark N9WYS > > > >From: Repeater-Builder@yahoogroups.com On Behalf Of KF4TNP > >RG-393/U I have a hardline to antenna jum

RE: [Repeater-Builder] Re: Best coax for short jumpers in repeater cabinet?

ale Time TC-400-NMC-RA Brent KF4TNP _ From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Eric Lemmon Sent: Sunday, May 11, 2008 1:09 PM To: Repeater-Builder@yahoogroups.com Subject: RE: [Repeater-Builder] Re: Best coax for short jumpers in repeater c

RE: [Repeater-Builder] Re: Best coax for short jumpers in repeater cabinet?

1, 2008 12:58 PM To: Repeater-Builder@yahoogroups.com Subject: RE: [Repeater-Builder] Re: Best coax for short jumpers in repeater cabinet? Eric, The connectors I have for the 393 are from Times Microwave. Times Recommended the use of the below LMR4oo connectors. TC-400-716MC and the TC-400-7

RE: [Repeater-Builder] Re: Best coax for short jumpers in repeater cabinet?

No Problem Eric, _ From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Eric Lemmon Sent: Sunday, May 11, 2008 5:40 PM To: Repeater-Builder@yahoogroups.com Subject: RE: [Repeater-Builder] Re: Best coax for short jumpers in repeater cabinet? Brent, Thanks

Re: [Repeater-Builder] Re: Best coax for short jumpers in repeater cabinet?

On May 11, 2008, at 9:52 AM, n9wys wrote: > Looks like you and I are in the minority, Brent. I mentioned this > same cable about a week ago, and it went virtually “unnoticed”… :-( > > Mark – N9WYS > > From: Repeater-Builder@yahoogroups.com On Behalf Of KF4TNP > > RG-393/U > M17/127 > I use th

Re: [Repeater-Builder] Re: Best coax for short jumpers in repeater cabinet?

At 04:50 PM 5/11/08 -, you wrote: Are you sure you don't mean 'RG-223' there, Skipper-doo? I use a lot of this on my bench and home equipment, for the same reasons the Skipp points out - it's cheap and effective. It's the same size (approximately) as RG-58, and uses mostly the same

RE: [Repeater-Builder] Re: Best coax for short jumpers in repeater cabinet?

Nate, I first became "enlightened" when someone gave me several lengths of RG-393 with type-N connectors already on it. I used them in my first homebrew 900 machine, and then in my converted 900 MHz MSF5000 (although photos of the station show RG-400 - taken during testing). Once I did some rese