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We have been using a Max Amp Mobile Truck and Trailer Package since about 08/2017, or soon after we lost our pre- Harvey house. Works extremely well when traveling or stationary. The first reason we went with MaximumSignal is our primary internet is Mobley and my Cat 60 phone are AT&T, our backup internet is Version, and my wife’s phone is Sprint. So far, the MaximumSignal has handled all three carriers. The second reason is our home 20 is in a very remote area of deep east Texas no INSP and we don’t watch enough television justify the cost of HughesNet. The portability of the Mobile Truck and Trailer Package allows us to move the actual amplifier and trailer side of both outside external antenna and inside omni direction antenna from the trailer to our post Harvey house. The third reason is the excellent customer service we received form Gord. We did have some feedback problems with the trailer side of the initial install and our home 20 and Gord worked with us tirelessly to resolve the problem.

I know this doesn’t sound like much to a qualified electrician, but a perfect example of one thing leads to another. Not being overly interested in the super bowl and related hype this weekend I finally decided to install the Perko Heavy Duty Battery Selector Switch 8603 on “Harvey”. “Harvey” is the new AmerLite 21’ trailer we bought in July because that’s where we spent 3 solid months after hurricane Harvey. We are not full timers but spend about 6 months of the year dry camping in various places. The Perko switch would allow us to run “Harvey” off battery 1, battery 2 or both in parallel. Positive from battery 1 to Perko switch, positive from battery 2 to Perko switch. Then power out from the Perko switch to trailer. I had ample supply 4-gauge fine wire welding able and Anderson S50 power Poles. Simple right? Leads to another #1 - The instructions said mount the Perko switch as close to the battery as possible. The battery on “Harvey” is outside behind the propane tanks in a typical battery box. I did not want the Perko switch sitting out exposed to the environment, so I mounted the Perko switch inside an ammo box which sits on top of the OEM battery box. Leads to another #2 -To properly install the Perko switch, the instructions also advised a fusible link between the batteries and the Perko switch. There is already a fusible link from the OEM battery to the trailer. So, inside the ammo box I wired in two fuses from the batteries. I said to myself, “Well that wasn’t so bad”. Then I started thinking (“Danger Will Roberson”). The on-board monitoring system just shows battery voltage and since we dry camp I like to monitor amps. I currently use a Trimetric TM-2030-A Battery Monitor System and related shunt on the auxiliary battery in my truck, on the old single battery from the travel trailer that we lost in a fire and on my solar system. Since I’ve already have the Trimetric wired to be portable via CAD 5 cable and couplers and I have an extra shunt, CAD 5 couplers and cables why not wire in the Trimetric to move back and forth between the trunk to “Harvey”? Leads to another #3 – Locate a place and mount the shunt. Leads to another #4 – Locate a place for the Trimetric INSIDE “Harvey”. Leads to another #5 – Run CAD 5 cable from inside “Harvey” to the appropriate terminals on the shut mounted outside. Leads to another #6 - Wire both negatives to one side of the batteries to the shunt. Leads to another #7 - Create a negative bus terminal for ”Harvey” loads . Leads to another #8 - Wire that negative bus terminal to the appropriate side of the shunt. Results were PERFECT. Perko switch on position 1, Trimetric meter battery 1 reads 12.9 volts static and -4.5 amps when I run the electric tongue jack. Perko switch on position 2, Trimetric meter battery 2 reads 12.5 volts static and -4.5 amps when I run the electric tongue jack. Perko switch on position Both, Trimetric meter off Battery BOTH reads 12.7 volts static and -4.5 amps when I run the electric tongue jack. Anticipated negative amps when I run any 12V loads inside “Harvey”. I hook up my 400-watt solar array and the Trimetric meter starts reading + amps static. Both battery 1 and 2 are the exact same amp hour rating and within a month of manufacturing date so I’.ve programmed the Trimetric appropriately. This took all day Saturday 2/3 and most of the day 2/4. I even watched the start of the super bowl off the 12V TV inside “Harvey”. One happy camper here. I tried to upload a jpeg that is 83KB. I get a message that that is tool large