Motorola Antenna mount question

[cstockmyer]

I assume your mag mounts came with PL-259 connectors? Radioshack makes a PL-259 to BNC connector for 2-3$. Actually I guess they have gone up in price, but here is what you need

http://www.radioshack.com/product/i...+connector&kw=bnc+connector&parentPage=search

No that's to big..I need a mini UHF to BNC, if there is such an animal.

 

[mpg0515]

No that's to big..I need a mini UHF to BNC, if there is such an animal.

No, not that I know of anyway.. You can always just cut off that connector (the mini UHF) and place a screw on, or crimp BNC connector on to the RG-58. These connectors work just fine for receiving use. If I were transmitting I would probably use a "true" crimp and soldier connector. The link is for a soldierless screw on one.

http://www.radioshack.com/product/i...+connector&kw=bnc+connector&parentPage=search

 

[mpg0515]

No that's to big..I need a mini UHF to BNC, if there is such an animal.

Actually there is..... Just had to do a little searching.
http://www.l-com.com/item.aspx?id=5423

 

[cstockmyer]

Does a permanent mount make reception better? It's ok with my mag mount, just fuzzy.

 

[RISC777]

"Does a permanent mount make reception better? It's ok with my mag mount, just fuzzy."

Not every time, but "most" times, yes.

There's always the same jar of variables. Specific antenna, system(s) monitored, distance, topography, other interference to/of reception.

For example, you have an antenna that designed for 800 MHz reception and has a permanent mount base. You can attach that antenna to a lip/trunk mount. The antenna is not centered above body metal and therefore has a "partial" ground plane. Take the same antenna and attach it to a permanent mount in the center of the top of the vehicle, at a minimum the trunk lid. It then has a "better" ground plane which "should" enable it to perform "better," e.g. receive "better."

But you speak of a mag mount, so it's looking at where on the vehicle are you placing the base (how much ground place is being afforded or provided the antenna)? Is the antenna designed for the ranges / frequencies you're desiring to monitor? Does the antenna need tuning?

Perhaps a partial answer, or not a straight out yes or no, but those are a lot of the things involved to be considered.

 

[cstockmyer]

"Does a permanent mount make reception better? It's ok with my mag mount, just fuzzy."

Not every time, but "most" times, yes.

There's always the same jar of variables. Specific antenna, system(s) monitored, distance, topography, other interference to/of reception.

For example, you have an antenna that designed for 800 MHz reception and has a permanent mount base. You can attach that antenna to a lip/trunk mount. The antenna is not centered above body metal and therefore has a "partial" ground plane. Take the same antenna and attach it to a permanent mount in the center of the top of the vehicle, at a minimum the trunk lid. It then has a "better" ground plane which "should" enable it to perform "better," e.g. receive "better."

But you speak of a mag mount, so it's looking at where on the vehicle are you placing the base (how much ground place is being afforded or provided the antenna)? Is the antenna designed for the ranges / frequencies you're desiring to monitor? Does the antenna need tuning?

Perhaps a partial answer, or not a straight out yes or no, but those are a lot of the things involved to be considered.

When I get back to Denver, I'll take a Digital pic of where I have it on my exploder. I made an effort to get it as centered as possible, but maybe I am off. At this point I am only listening to DPD, if that helps.

Also has anyone here ever tried a FM Trap on a NMO mount?