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-   -   CM4228 + CM7777+ Eagle Aspen ROTR100 ? (https://www.avsforum.com/forum/25-hdtv-technical/1368873-cm4228-cm7777-eagle-aspen-rotr100.html)

J_ph 10-24-2011 05:47 PM

I currently have a CM4228 + CM7777, and depending upon the season it seems that I need to move the antenna around because of bouncing off trees etc. So.... I've ordered an Eagle Aspen ROTR100 rotator that uses the existing coax.

It seems that the controller for the rotator replaces the power supply for the CM7777 is that correct? The installation pdf that I downloaded is a little unclear.

thanks in advance for your help.

j

ProjectSHO89 10-25-2011 04:39 AM

Don't be surprised if you find you have to run a separate coaxial cable.

J_ph 10-25-2011 04:43 AM

after a little investigation it appears that the CM7777 preamp may not be compatible with the one wire scenario, so you may be right..... or I return it.

thanks

j

ProjectSHO89 10-25-2011 04:45 AM

The installation pdf also tells you to call PBI to find out what pre-amps are known to be compatible with the 1-wire system.

J_ph 10-25-2011 04:53 AM

> The installation pdf also tells you to call PBI to find out what pre-amps are known to be compatible with the 1-wire system.

thanks! I missed the note.

the instruction manual states - "+17 VDC at less than 50mA power"
the product PDF states - "18VDC at up to 80 ma"

http://www.eagleaspen.com/admin/prod...n/file_251.pdf

http://www.antennasdirect.com/cmss_f...%20-%20PBI.pdf

I think it may be worth a call.....

J_ph 10-25-2011 04:03 PM

I did receive a prompt response from PBI -here's the list of compatible pre-amps:

Channel Master:0064DSB, 0264DSB, 0068DSB or 3010 Stealth active
antenna.(Models 0065DSB and 0265DSB are equivalent to 0064DSB and
0264DSB, but without a power supply included)

From winegard

HDP-269 or the AP-8700. Winegard tested these preamplifiers with this
rotor and had no problem. You will need to keep your downlead to less
than 150 feet of RG6/U cable.


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