VHFcontesting
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Re: [VHFcontesting] VHFcontesting Digest, Vol 236, Issue 18

To: vhfcontesting@contesting.com
Subject: Re: [VHFcontesting] VHFcontesting Digest, Vol 236, Issue 18
From: Steven Rutledge <crownhaven@bellsouth.net>
Date: Sat, 20 Aug 2022 11:45:26 -0500
List-post: <mailto:vhfcontesting@contesting.com>
The DX shop makes a box for the 9700 the allows you to key amps for each band.  
It automatically switches when you change bands.  It’s cheap too.  I imagine 
they could make one for the 905.

thedxshop.com 

Steve, N4JQQ

> On Aug 20, 2022, at 11:00 AM, vhfcontesting-request@contesting.com wrote:
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> Today's Topics:
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>   1. Re: [NEWSVHF] IC-905 (Terry Price)
> 
> 
> ----------------------------------------------------------------------
> 
> Message: 1
> Date: Sat, 20 Aug 2022 11:41:44 -0400
> From: "Terry Price" <terry@directivesystems.com>
> To: <newsvhf@mailman.qth.net>,    <VHFcontesting@contesting.com>
> Subject: Re: [VHFcontesting] [NEWSVHF] IC-905
> Message-ID: <d6d301d8b4ab$59fc1690$0df443b0$@directivesystems.com>
> Content-Type: text/plain;    charset="utf-8"
> 
> 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@mailman.qth.net 
> [mailto:newsvhf-bounces@mailman.qth.net] On Behalf Of Stan Laine via NEWSVHF
> Sent: Saturday, August 20, 2022 11:12 AM
> To: jayb1943@optonline.net; NEWSVHF@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@optonline.net>
> To: NEWSVHF@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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> End of VHFcontesting Digest, Vol 236, Issue 18
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