gman1971

Good radio choice, just make sure you get decent cable (heliax 1/2). Use N connectors if possible. I personally would chose a 2-bay or 4-bay dipole over anything Diamond made.... 
There are places like radiomobile.com that will do a crude site analysis for you. You punch the gain, the location, etc, and you get a coverage map. 25 miles in UHF is hard to achieve, especially in rough terrain.
G.

That is not a good idea on a car. It will come undone at speed. Why do you want that antenna on a car?
Just use a regular 1/4 wave Larsen. Seriously, I am able to reach 30 miles simplex (no repeater) on my cars with a simple 1/4 wave Larsen antenna...  Concentrate all the efforts in the base setup.
G.

This is why it is recommended "drilling the hole" 
G.

This is why it is recommended "drilling the hole" 
G.

Depends on what your looking for. I run the Larsen all band on all 4 of my 8500's. They sweep better on 800 than the MSI all band.  Most of the commercial antenna manufacturers make good antenna's. Larsen, Laird, PCTel all are decent.

Not sure if they are the gold standard, but I use them on my cars, with good results.
G.

I use Zetron 3010 ALI displays that were part of the 3200 series telephone "Call Taking" systems. They provide a line for "name" and another for "phone number" but also show landline address, or wireless cell phone tower lat/long, then if they get the second "rebid" from an ALI database, the lat/long of the cell phone GPS. They will also show which first response elements are responsible for the callers location: police, fire, ems (emergency medical services), and usually a line or two of notes. Cellular calls will have the carrier name: Verizon, ATT WRLS (American Telephone &Telegraph Wireless), etc. However, they are not stand alone in that respect......you need access to an ALI database or something for the 3010 to query from to display information. I have several and an older copy of a local database, but have also connected one to an alarm system and another just to a keyboard for messages (the one shown).
Zetron had numbered product lines:
1000 was SCADA, 2000 Paging Systems (yes, they are still in use many places), 3000 Call Taking, 4000 (Radio) Dispatch, 5000 DFSI dispatch, numbered box products, and then MAX series, and highest end Acom Novus. For the first 30 years, most of this was connected to Motorola radios, until they were bought by the JVC/Kenwood Group, then sold last year to Codan of Australia. I would consider the 3000/4000 series to be the best gear for a 9-1-1 Public Safety Answering Point, unless they can afford Acom Novus ($1 million plus cost). Zetron's hayday matched that of Motorola in my opinion, 1980-1990's. But, you do need more than the device to get expanded Caller ID....a connection to an ALI database, Internet access, old electronic phone book.....I have seen some creative uses.

Congrats!

I am just going by the brochure specs. The lithium disposable battery is rated at 12 hours according to the brochure... I've updated the name, will upload shortly.
 
G.

What model ALI? What else might one see in the data? I get a lot of robocalls and it would be interesting to see what they cannot spoof.

No kidding. Except for a nice mobile I got for free everything else I had to pay for. 8-(

So one 8 year old article and one 20 year old article....yup...garbage... Again my Opinion. But I guess we aren't allowed to differ than other online. 
There are alot of publications by the ARRL and many other organizations in the radio field. Each has a following and each is what the end user wants to read. If Amateur radio was respected in the areas I live more then it may be different but its a hobby to them. None are involved in county aspects nor have any interest in that. I guess maybe QSL to should just have articles on how to program your Baofeng and HotSpot as that seems to be the fad of the day for many hams. Linking repeaters via internet, hot spots and zello from a cell phone is not what I got into ham radio for. Where is the amateur's microwave guys to help link repeaters and put voters on a system ? Ghosts. Just buy a cheap hotspot and drop it on your fusion or Trbo repeater and walk away. 
 

There are some holes in the collection, especially with mobiles. I am the traditional radio hoarder, and have mobile data terminals, and lots of gear around, but most of it doing something. I would say about 85-90% Motorola thanks to the oil industry and planning for hardware replacement.
Then Kenwood/EF Johnson/Zetron.....working for them helped that a bit, corporate "yard sales" where day three everything went for free as ""e-waste" costs the company money. My Zetron ALI display shows the entire caller ID data, as the entire data stream is sent, but consumer grade equipment only shows name and number, two lines.

The earlier Systems Sabers and analog Sabers are modular so you can change band splits by swapping a few modules and retuning. I have done this with several surplus govt split IRS radios.

The Astro Saber is a bit too tall for my taste. I have a couple of those but prefer the Systems Sabers.

I wish Motorola had continued with the Saber form factor. The later Astro XTS and APX radios are sort of bizarre and bulbous in styling.


Sent from my SM-T350 using Tapatalk

The XPR7550 was heavily inspired by the Astro radios... that is why I like the XPR7550e so much... I used to like those old Astro radios... 
On a different note... Seems like PAC owns at least one of every Motorola radio model built to date... Is there a Motorola radio model you don't own?
impressive! 
G.

The XPR7550 was heavily inspired by the Astro radios... that is why I like the XPR7550e so much... I used to like those old Astro radios... 
On a different note... Seems like PAC owns at least one of every Motorola radio model built to date... Is there a Motorola radio model you don't own?
impressive! 
G.

Those System Saber radios were awesome. I still see some in use in some parts of the country, especially California law enforcement. I myself still use a VHF Astro Saber Model 3 for some uses as well. Had to eventually upgrade to a Lithium Ion battery, which makes it slightly shorter now, and required a newer multi-chemistry charger. But still a very capable and useful radio. If mine were in UHF, they would be used for GMRS for sure. I gave two away to amateur radio type friends and now only have two myself. They were removed from a maritime environment, spares for use on motorized barges used to transport oil products along the West coast. The Saber radios do have excellent specifications for the time they were manufactured.

@gman1971 Please see Attached Motorola Systems Saber catalog, specs and FCC Grant for part 95. Cant wait to see how it compares.
Sorry for the delay. Under the weather here!
593125590_SYSSABERCATALOGSHEETR3_4_136A.pdf SYS SABER SPECIFICATIONS.pdf SYS SABER FCC GRANT AZ489FT4767.pdf

@JLeikhimsure thing, catalog sheet, please.
I just updated the main comparison with a couple of additional radios 

I'm following what Gman is putting down as far as receiver desense, but I'm also wondering if there's a multipath issue due to the metal roof - and that metal reflector is creating a null where the antenna is mounted outside. The fact that there's a "magic spot" indoors where everything seems to work is making me think there's a possibility that some kind of multipath effect going on.  
If you are walking around indoors with the antenna do you find some other magic spots? 
What Gman is questioning is also possible, but the fact that you seem to have tried it with different radios makes me think it's more than just a poor receiver being overloaded. I believe we've confirmed that the Wouxun KG-805G is a superheterodyne design receiver, and has some decent receiver specs.

Even less than 10 years in some cases...

APX radios, new, are certainly out of my budget and most people's budgets, but that hasn't stopped me from finding many of the XPR7550e/XPR5550e I own, used, for < 300 bucks... 
Also, reliable radios are priceless IMO, yet people sink 1k+ on a phone... but they cheap out on the radio... I still can't wrap my head around that.
G.

I posted this on another forum, but I figured it might be helpful to post it here as well. This is a comparison of some of the top of the line radios in the LMR/LEO market. Including the mighty APX8000, and the HT1250 from the 20th century...  Added the Astro Systems Saber
UPDATED: Feb-22-2022

I found that adding a tiger tail, or rat tail, to my old GT-3 radio helped a lot... just add a short piece of wire to the outer side of the SMA.
G.

Most likely desence. Just because you hear the tail does not mean the signal is good enough to pass audio. Who tuned the duplexer ? 
 
You need to give us more info on the setup.
Repeater Model
Feedline type
Antenna Type
Antenna Height ?