[VHFcontesting] [NEWSVHF] IC-905

Sat Aug 20 13:40:58 EDT 2022

Anybody notice that  "N" connector serving as a single port for 144-432-1296 connections? What a "Relay & Coax Jumpers" nightmare that presents interfacing to amps and preamps for those 3 bands !

And.....I'm only assuming that separate band PTT signals are available at that 10 pin ACC jack on the remote RF unit. In the video they refer to it as the interface port for the 10 GHz add-on module.

Ron
WW8RR

-----Original Message-----
From: VHFcontesting [mailto:vhfcontesting-bounces+ww8rr=charter.net at contesting.com] On Behalf Of Terry Price
Sent: Saturday, August 20, 2022 11:42 AM
To: newsvhf at mailman.qth.net; VHFcontesting at contesting.com
Subject: Re: [VHFcontesting] [NEWSVHF] IC-905

While it's not the end all be all box we would all like, it is a step in the right direction. Let's be realistic, 222 and 902 aren't bands anywhere but here so they aren't going to include them just for our market. I have a IC-705 and it's a pretty slick rig. Using it for 50-432 (10m to drive a 222 transverter) is a nice set up. Adding the IC-905 and using the 144 output to drive a 902 and 3400 transverter would make a very nice setup. Even if you have to run a separate PTT line to key those but I'll bet you can find a PTT somewhere in the box or use a bias tee to run PTT up a piece of coax (say for your 222 antenna?) Point is, for anyone who has built a remote tower box with transverters, amps, a bazillion relays, 10 MHz source, 10 MHz distribution, AND worry about powering it all, this is very nice. Hopefully the price will be below $3K which is what it costs to build a decent remote box.

Typically, POE is 15 watts at 48v, POE+ is 30W. If they used Hi-POE it could provide up to 100W. With 10W out on 144-1200, they have to have at least POE+ so my hope is they used the 100W version (which is only a little over 2A at 48V!!)

We will just have to see all the particulars when it comes out. From the video, I didn't see a CI-V jack so no band data is available unless you make a USB decoder and then you might lose the audio codec. A simpler way is to use the antenna ports via N1MM's parallel port configuration for band selection on non supported bands. I'm sure some smart person could use an Arduino or Raspberry pi to do it also.

Lets keep our fingers crossed it won't take a second mortgage on your house to afford it!!

Terry - W8ZN

-----Original Message-----
From: newsvhf-bounces at mailman.qth.net [mailto:newsvhf-bounces at mailman.qth.net] On Behalf Of Stan Laine via NEWSVHF
Sent: Saturday, August 20, 2022 11:12 AM
To: jayb1943 at optonline.net; NEWSVHF at mailman.qth.net
Subject: Re: [NEWSVHF] IC-905

A innovative rig.
I like the ability to remote the RF to the tower top with the antennas.     How much power can I extract from the PoE at the remote box, to power other stuff ?
Or use the remote box in the shack with a short ethernet (data + PoE) cable.
Where is 222 MHz ?   and 3400 MHz ?    and 902 MHz    ???
Will it play full duplex, 10 GHz up and 2.4 GHz down like on QO-100 geosync satellite ?How about full duplex 430 MHz up and 2M down  ?   or vice versaWill it play 2304 and 2401 MHz, How about both 10.368 GHz and 10.451 GHz  ?  all in the same box ?I would need a PTT output to drive the IPA/PA on the tower.Can the base unit do RF offsets to directly read out the RF when I use a transverter on 222 MHz ?I like the built in GPS discipling of all of the local oscillators.
I like it. But, what is the best price point with 10 GHz ?    $2,500 ???
Stan, W1LE    Cape Cod

-----Original Message-----
From: jayb1943 <jayb1943 at optonline.net>
To: NEWSVHF at mailman.qth.net
Sent: Sat, Aug 20, 2022 10:35 am
Subject: [NEWSVHF] IC-905

Well it’s certainly a breakthru providing a commercial radio on the bands above 1.2 ghz. But has several strange limitations – The 2m, 70cm and 23 cm outputs all come out of ONE  port and it’s on top of the tower ? Not exactly compatible with power amps...and you sure need a few at these power levels. I would have designed the 3 lower bands with the RF down at the shack with 3 separate outputs like the IC-9700. The optional antennas are all low gain vertically polarized...useless for DX/contest/mountain top work. What market did they have in mind where 0.5w and a vertical lo-gain antenna on 10 ghz would be of any use ? 
Also probably $5k with the 10ghz module.....not gonna sell a lot of these I think..
        jay ny2ny
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