I can only give you an idea based on what I spent 4 years ago for TRBO system. The orignal system installed included an XPR8400 VHF Repeater with dynamic mixed mode enabled, 5 CM200D's and 5 CP200D's all with digital entitlement, a 20 foot fiberglass antenna, duplexer and all cabling and connectors installed on a pre existing 140 foot tower. FCC coordination and licensing was also includued. The grand total was just shy of $14,000.00.
Say a small number of user, <10 on an APX type system?
If cost is a concern, there's two things you can do to save money.
1. Don't use APX radios. They are a public safety grade radio and overkill for anything a business would be doing. Yes, even security guards. You can get perfectly suitable radios for $300 and up.
2. Don't use Motorola. Anytime you use Mother M, add a zero on to the cost. Partly sarcastic, partly true. There are vendors that are just as good and won't cost as much.
And it depends entirely what you mean by "system". You need to clarify and fill in a lot of details about exactly what you are looking for.
If that's the only info you can provide, you are looking at anywhere from $4,000 to $1 million+, depending on what sort of coverage and features you want.
3. So I would just be looking to communicate between sites. As I said, the distance is approximately 11 miles between both sites.
Well, depends.
Do you need coverage long the route between both sites?
Or do you need coverage around Site A and coverage around Site B?
There's some pretty neat stuff you can do with internet linking. You could have a base radio at each site connected over your data network. That would permit talking between sites while utilizing the internet connection you probably already have. You can do that using basic analog only radios.
If you need coverage all along the 11 miles as well as at each site, this will be a challenge. Repeaters would be needed, and the number and location will depend entirely on the topography of your area.
Time slot 1 is linked as wide area so both repeaters will come up. Slot 2 is kept as local so it only stays at that site. No enhancement required on the repeaters, it's included. You don't need the IPSC enhancement in the radios since you don't need to auto roam.
N1GTL has done this before....... he is exactly right. I have put many of these in. Your costs will be repeaters (SLR5700 or SLR1000 if you feel adventurous), licensing, duplexes, cabling, mast, and antennas. If you mount the antennas and cabling inside the facility, then you won't have to worry about lightning protection. TT
Can you just do this?
Site one:
two channel handhelds, channel one w/tone "a" for local, channel two w/ tone "b" for link to other site.
Single frequency (same at both sites)
IP link, simplex low power radio RX/TX tone B at both ends
Duplicated at site two
Local traffic all with channel one/ tone A
Switch to second channel" programmed w/ tone B. IP link repeats it to second site.
If someone needs to respond to both sites, just use a scanning radio to scan both channels
All analog, low cost radios, low power. I get the impression the radio to radio at local sites is OK,
Just thinking simpler may be more than adequate, no need for digital, repeaters, etc.
$.02
Yes. Digital isn't required to make this work. A basic analog radio would work fine. A low power mobile with a 12 volt supply and an analog - IP interface.
No, IPSC is digital, not analog. You cannot link two repeaters in analog mode.