I'd like someone to explain the difference between the way an IDAS repeater processes information vs old-school analog repeaters. Since IDAS works in simplex, what element is missing in an analog repeater than prevents its ability to pass digital ? I'm assuming that it has something to do with the low-frequency cutoff in a conventional repeater, or does phase-shift occur that destroys the information ? In theory this could be eliminated by connecting discriminator output to tx vco. What am I missing ? -Thanks !
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IDAS repeaters - processing of data vs analog
- Thread starter phbrush
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The way i understand it, is that the internal controller is taking the received data and breaking it down, and rebuilding it to retransmit it. If you took an analog repeater and put in full duplex, with the rx wide open (no tone squelch), it would cause all the data packets to be corrupted, via the D/A converters.
Thats whats been explained to me.
The IDAS repeaters are just as cheap, if not cheaper, than some of the analog ones. You can get an FR5000 or FR6000 channel module and forget the rack. Doing this, you can get it cheaper than its previous models (FR3000/4000). Buy one and you will never look back. Most likely you will hate to listen to analog audio ever again......i know i do.
Thats whats been explained to me.
The IDAS repeaters are just as cheap, if not cheaper, than some of the analog ones. You can get an FR5000 or FR6000 channel module and forget the rack. Doing this, you can get it cheaper than its previous models (FR3000/4000). Buy one and you will never look back. Most likely you will hate to listen to analog audio ever again......i know i do.
Thanks, I assumed something similar was happening if for no other reason than to 'clean up' the digital signal before it was passed along to the receiving mobile(s). The primary reason for my hoping to recycle the analogs was the apparent lack of high power amplifiers in the newer stations, which is a problem for me as I have to combine transmitters, and as a result lose 6db right out of the gate due to close frequency separation. Well, I guess I will have to add linear amplifiers to my shopping list, along with new repeaters.
dsmiley
Member
Idas
Not to re-direct the thread...but regading the Icom FR5/6000...The question has come up as to programming. Looking at the documentation, it appears that most of the control can be done via the IP network port. Can it be programmed remotely via the IP port??
If it can...we are considering putting several at remote mountaintops, connected to our IP microwave back-bone for use as emergency InterOp machines. Connected to our master receive antenna at the very top of the tower and connected to it's own transmit antenna vertically separated nearer to bottom of the tower, so there would be no duplexer to tune.
If we can program them as needed for the "emergency" we see it as almost invaluble...any one know ??
Thanks
Not to re-direct the thread...but regading the Icom FR5/6000...The question has come up as to programming. Looking at the documentation, it appears that most of the control can be done via the IP network port. Can it be programmed remotely via the IP port??
If it can...we are considering putting several at remote mountaintops, connected to our IP microwave back-bone for use as emergency InterOp machines. Connected to our master receive antenna at the very top of the tower and connected to it's own transmit antenna vertically separated nearer to bottom of the tower, so there would be no duplexer to tune.
If we can program them as needed for the "emergency" we see it as almost invaluble...any one know ??
Thanks
RADIOGUY2002
Member
short answer yes
My understanding is that they were working on a full feature package for remote control via ip, really digital radio is a whole another animal then analog radio.
My understanding is that they were working on a full feature package for remote control via ip, really digital radio is a whole another animal then analog radio.
dsmiley
Member
IDas
Any ideas when it might be available and what it might be capable of???
Any ideas when it might be available and what it might be capable of???
RADIOGUY2002
Member
I take
I take look into to it to see how far they got, give me a couple of days.
I take look into to it to see how far they got, give me a couple of days.
dsmiley
Member
I have been able to do programming of my repeaters over IP. It saves lots of $$$ when fuel prices are the way they are. Just go in the software, and put in my static IP of the repeater, then clone away.....
Works flawlessly. I can go in and modify the output power, user id's, talkgroups, etc. Basically just as if i was to drive to the site and plug into it with my laptop. We have 5 repeaters linked and more on the way soon. Its awesome to be able to do all the adjustments over ip. I have a Panasonic Toughbook at my main site. I use logmein on my android phone and log in to it, then access the repeater software, select which repeater i want to communicate with, and in just a few moments i can add a RAN to all my repeaters, to add a new user to the network.
Works flawlessly. I can go in and modify the output power, user id's, talkgroups, etc. Basically just as if i was to drive to the site and plug into it with my laptop. We have 5 repeaters linked and more on the way soon. Its awesome to be able to do all the adjustments over ip. I have a Panasonic Toughbook at my main site. I use logmein on my android phone and log in to it, then access the repeater software, select which repeater i want to communicate with, and in just a few moments i can add a RAN to all my repeaters, to add a new user to the network.
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dsmiley
Member
Idas
W9JLM...
That's great to hear...but just let me clearify...these are ICOM FR-5000/6000 repeaters, with the appropriate cards and an IP Network connecting them remotely to the ICOM Software???
Can you program them as analog remotely...change frequencies and tones?? using just that ICOM client software..on the IP Network...???
Thanks in advance!!
W9JLM...
That's great to hear...but just let me clearify...these are ICOM FR-5000/6000 repeaters, with the appropriate cards and an IP Network connecting them remotely to the ICOM Software???
Can you program them as analog remotely...change frequencies and tones?? using just that ICOM client software..on the IP Network...???
Thanks in advance!!
You use the programming software you normally use to program all repeater functions. But, instead of being at the site and plugging a programming cable into the front of the module or rack mount, you can be at any location with internet access. Instead of selecting a com port in the software, select the TC/IP tab at the top. Then insert the static IP address of the device. Then select "read". It will download all the profile info of the repeater. Then you can change any setting you want, then select "write". It will then write all the data to the repeater.
Now, if you dont have a static ip, and are using DNS, you will need to put a cheap laptop or pc behind your VPN router at the site. Then install logmein, and the programming software into it. Then from a remote location (i use my Android smartphone), login to your logmein account, and select that PC from your list. Once your in, open the programming software and use the sub address (ex: 192.168.2.11) then follow the above procedure.
I have multiple sites, with one UHF repeater and have static IP's on all of them. So, u just use the static IP. Now, i have one site that has the UHF and a VHF. I have the UHF (192.168.2.11) on the port 1 of my RV042 VPN router, so i can access it with the static IP. However my VHF (192.168.2.12) is on port 2 of the router. So, i cannot access it with the static IP, as the static will go to the first device off of the router. So, to get into it, i login to my laptop that is located at the site on port 4 permanently, using logmein. Then, set the ip in the FR5000 programming software to 192.168.2.12, and program as needed.
Works great. If you have questions, feel free to email me: Jeromy@millertower.net
Just to clarify. If you are off the network, you can use the static IP of the repeater site. However, if you are on the network, behind one of your routers, you can simply login to your devices:
ex:
192.168.2.11, 192.168.3.11, 192.168.4.1............
Make sense?
dsmiley
Member
Chrystal clear...one more question...the FR3/4000 can be programed as simplex/half duplex base stations...can the 5/6000's too?? Via IP...??
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