Ultimate Coax Question!

[wxmike]

Using the OmniX..

LMR400 vs LMR 600 Vs Andrew Heliax LDF4-50A..

75 foot run. NMale to NFemale with BNC adapter to the back of the scanner?

I'm thinking of using LMR 600.

Could anyone please post their experiences with any of the cable's above on 75 foot runs?

thanks

 

[n5ims]

Using the OmniX..

LMR400 vs LMR 600 Vs Andrew Heliax LDF4-50A..

75 foot run. NMale to NFemale with BNC adapter to the back of the scanner?

I'm thinking of using LMR 600.

Could anyone please post their experiences with any of the cable's above on 75 foot runs?

thanks

This is kinda like asking "what's better, a Toyota Tundra, a GMC Yukon, or a Peterbilt 389". The answer depends quite a bit on what your application is. Please provide additional details, such as frequency, desired range, use, etc.

 

[N_Jay]

Its all in the math.

Calculate the loss at the highest frequency you are interested.
changes less than 3 dB are very rarely noticeable on an FM receiver.

 

[N2WEC]

To use Heliax for a scanner application is a huge waste of money. For almost any application up to and including 1GHz Belden 9913F is the most flexable in terms of low loss and flexability of coax. 75 feet is actually a very short run. So your use of LMR 400 is most likely the best with a pigtail of Belden or LMR equivilent 58U coax to connect to the radio or coax switch to radio. Best of luck.

 

[wxmike]

Thanks, I used this site http://www.timesmicrowave.com/cgi-bin/calculate.pl Did all my calculations.

Thank You'

 

[Josh]

Plus, you're not going to want to try to have a 1/2" or thicker cable going directly to the back of the scanner unless you want to wreck up the jack on the back.

A jumper cable downsizing from the thick, hard to bend cable, to something more flexible is recommended.

Still, info. on frequencies used/monitored and the overall application is needed

 

[wxmike]

Overall scanning most freq's, But the ones i most listen too are: 118-140 some 440 and 800. I'm using the RS pro 197 with the OmniX antenna.

 

[Lowa2]

all the stuff here mentioned is good stuff. I prefer LDF. Whatever size. I find it's alot easier to handle.

 

[Zard0z]

BuryFlex

Just got and installed the BURYFLEX cable. It is a large cable but very light to work with. I just worked with
82 feet thru my attic and up the pole. It will need the larger clearance and cable managemnt tools.
However it has it advatanges over the LDF and LMF types IF you can live with the size.

Here is a link for you to view. > BURYFLEX Davis RF - Amateur Products, Coax Cable
Here is the Orion link for it > Orion Wire Co., Inc - Bury-Flex

It was .82 cents a foot. with connectors and shipped to me was 114.04

It was reccommend by DLP productions.

Only had it up and working for a few days but GREAT so far.

 

[N_Jay]

Just got and installed the BURYFLEX cable. It is a large cable but very light to work with. I just worked with
82 feet thru my attic and up the pole. It will need the larger clearance and cable managemnt tools.
However it has it advatanges over the LDF and LMF types IF you can live with the size.

What advanteges?

 

[Zard0z]

use the links.

Compare the att at freqs at 100 feet.
Then check the cost per foot.
Then check what it is made out of.

these are the 3 that made up my mind for my use.

 

[N_Jay]

use the links.

Compare the att at freqs at 100 feet.
Then check the cost per foot.
Then check what it is made out of.

these are the 3 that made up my mind for my use.

Cost less, loss more, made from stuff similar to 9914.

I looked at all that, was trying to see what you considered an advantage.

 

[prcguy]

LMR-400 is relatively inexpensive at around 50c/ft and connectors are also cheap. There is lots of LDF4-50A surplus for cheap along with connectors and you don't need any special tools to install the connectors. Its a ***** running 1/2" hardline in a residential install otherwise its great stuff and the lowest loss of the ones mentioned. I've never dealt with LMR-600.
prcguy

 

[prcguy]

LMR-400 is relatively inexpensive at around 50c/ft and connectors are also cheap. There is lots of LDF4-50A surplus for cheap along with connectors and you don't need any special tools to install the connectors. Its a ***** running 1/2" hardline in a residential install otherwise its great stuff and the lowest loss of the ones mentioned. I've never dealt with LMR-600.
prcguy

 

[radiopro52]

The difference in loss between LMR-400 and LMR-600 is small. At 75 feet, you'd probably gain about a half dB to maybe a full dB using the LMR-600, which to my understanding you won't be able to notice.

 

[zz0468]

Doesn't anyone use ladder line anymore?

 

[N_Jay]

Doesn't anyone use ladder line anymore?

Only the smart ones.

 

[PHOENIX_SCANNER]

Just go 7/8" heliax all the way to the back of the radio. You won't even need a shelf for your scanner, just let it hang from the connector / adapter.

As if the typical chinese scanner would know the difference between LMR-400 and something better with a 75 length.

 

[N_Jay]

Just go 7/8" heliax all the way to the back of the radio.

7/8"??
Why the thin stuff?

 

[lmrtek]

With a short run like that why waste your money?

To gain maybe 1 db over low loss RG-8?

Waste of money for little return.