RV News RVBusiness 2021 Top 10 RVs of the Year, plus 56 additional debuts and must-see units → ×

Thread Tools Display Modes
Old 08-22-2014, 03:02 PM   #1
Join Date: Apr 2013
Posts: 43
Another Poor TV Reception Issue

I'm trying to diagnose poor TV reception on our 3051 MH (14 months old). Winegard Sensar antenna with Magnadyne Video Control Switch (VCS-10). MH does not have a separate antenna amp, but the switch box has a 12v feed. Does anyone know if the switch box acts as a antenna amp? I verified that the 12v feed is OK up to the connector, but can't tell if the switch box is working since it does not have a LED or on/off switch. We have nearly 30 available channels (including sub-channels) in Detroit metro area. I get only 2-4 ch thru the switch box. Get 10-12 when ant is connected directly to the TV (ant would not be amplified in this case). But I get 22 ch with a set of amp. rabbit ears sitting inside the coach!
This is really starting to "bug" me. TV reception was very good in our driveway before our last trip, but I couldn't get a single TV channel during our trip (friends next door could get 3-4). Any one out there with info on the Magnadyne switch box?
dcogs15 is offline   Reply With Quote
Old 08-22-2014, 03:12 PM   #2
Senior Member
Iwannacamp's Avatar
Join Date: Aug 2013
Posts: 7,855
I am ordering a jack conversion for mine. Amazon is the cheapest I see at less than $40 delivered. I will see.

Sent from my iPhone using Forest River Forums
2017 Puma 297RLSS
2005 Ram 2500 4X4 diesel SMOKER!!
I love puns, irony and tasteless jokes...
born in Texas.... live in Arkansas
Iwannacamp is offline   Reply With Quote
Old 08-23-2014, 11:34 AM   #3
Site Team - Lou
Herk7769's Avatar
Join Date: Oct 2009
Location: South Eastern PA
Posts: 22,876
The switch plate is a power supply for the amp which is located in the antenna's white plastic box. Turning on the power light switches the input lead from the outside cable connection to the roof antenna and turns on the 12 volt power feed.

Turning the button off; depowers the power supply and connects the TV signal splitters to the park cable input.

A warning to "Jack" users. The jack amplifier receives ALL UHF digital channels 13-69 even though channels 53 - 69 are reserved for cell towers not TV transmissions.

If you use the cool blue lights to align your antenna, you can get full bars and no TV because the Jack has locked up on a cell tower.
Lou, Laura, & Freya the wonder dog
2008 GMC Sierra 3000HD Crewcab SB Allison Duramax
2019 Flagstaff 8529FLS - Pullrite 3300
Herk7769 is offline   Reply With Quote
Old 08-23-2014, 07:37 PM   #4
Senior Member
Lloydg's Avatar
Join Date: Mar 2013
Posts: 702
Send a message via AIM to Lloydg Send a message via MSN to Lloydg Send a message via Yahoo to Lloydg
I replaced the factory omni directional antenna with the Jack, and WOW, what an improvement. Herk; Thanks for the heads up. Haven't seen that as an issue but will keep it in mind.

Heartland Big Country 3150RL
2013 Ford SD F250 4x4 SC; 6.2
Reese 18K Elite w/slider - Rockford, Michigan
Lloydg is offline   Reply With Quote
Old 08-25-2014, 04:50 PM   #5
Join Date: Apr 2013
Posts: 43
Magnadyne Switch Box (VCS-10)

Our Forseter 3051S MH came with a fancy video switch box to switch any of 5 inputs(ANT, cable, DVD, etc) to 3 outputs (TVs). I spoke with tech support at Magnadyne. To my surprise, even though this box has a 12v input, it DOES NOT provide any amplification of the TV antenna signal. This switch box essentially is a set of mechanical switches. The 12v is only used to convert the S-video / audio signal from the DVD player into a RF signal that is put onto the coax output ports. In other words, if your coach does not have a separate antenna amp box (eg, Winegard RV7012 wall plate, SensarPro signal meeter, or similar) it likely does not have an amplified antenna signal! The Magnadyne box will pass thru an amplified antenna signal (12vdc max) so it should be OK to add an amplifier to the antenna.
dcogs15 is offline   Reply With Quote

reception, tv reception

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

» Featured Campgrounds

Reviews provided by


This website is not affiliated with or endorsed by Forest River, Inc. or any of its affiliates. This is an independent, unofficial site.

All times are GMT -5. The time now is 11:39 PM.