Author Topic: Back Packing Using A LFP Battery  (Read 1403 times)

Offline JohnyMac

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Back Packing Using A LFP Battery
« on: March 13, 2022, 02:53:49 PM »
My goal this year is to do some backpacking with my Yaesu 817 and a LFP battery (LifePo4).

As many of you know, the 817 has a max output of 5-watts and it comes with an internal NiCad battery and a carousel that holds AA batteries. In the past, I just used the NiCad till the juice ran out and them switched over to standard Duracell AA batteries. Also, the 817 has a feature that will not allow you to use more than 2.5 watts unless you go into the menu and change that to 5-watts.

So here are my thoughts, the 817, with a LDG Z-817 tuner and a LFP battery.

If you do go backpacking and work the ham bands, what setup are you using. I am sure others have similar questions.

As a side note; I am thinking of selling my 817 and the Z-817 tuner and picking up the Xiegu g90  transceiver. Weight is compatible to the 817, 20-watt output, and no tuner to lug along as the g90 has an internal tuner. I have a good friend that has one and he loves it. Anybody have any experience with the g90?

 
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Offline mattmcd

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Re: Back Packing Using A LFP Battery
« Reply #1 on: March 13, 2022, 04:57:26 PM »
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« Last Edit: March 13, 2022, 10:46:11 PM by mattmcd »

Offline Jackalope

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Re: Back Packing Using A LFP Battery
« Reply #2 on: March 13, 2022, 10:28:42 PM »
   If i go on a weekend hiking trip, or a field exercise, a Commradio CTX-10 is the radio I usually carry.  The CTX-10 is compact, rugged, has a built in tuner, and lithium batteries with a charge controller.  It's easy to keep the batteries topped off with a 20 watt solar panel.  An end-fed, or multi-band collapsible vertical antenna does the job, and it all goes into a small pelican case that's not always carried.  It also has a built in Morse code reader, and it's manufactured in the USA.

    Johny, I suggest keeping the FT-817, because of its versatility.  I've got a  FT-817 too, and it's been a good radio.  The important thing is that it covers not only HF, but VHF and UHF too.  So, it can be used in other types of mountain topping contests.  I've used my FT-817 as a 2 meter mobile when I had issues with a primary mobile radio.  Again, this radio mostly resides in a pelican case, but it's ready to go anywhere.  Like the CTX-10, the FT-817 could be set up as a field base radio due to the ability to be powered by rechargeable or single use batteries.

    I've heard good things and bad things about the Xiegu G90. Everyone seems to like the price, but no one likes the warranty.  From what I understand, the radio needs to be returned to China in the event there's an issue with the radio.  Seeing the current world situation, I'd hesitate to purchase anything made or associated with China.  Baofengs are disposable $25 radios, are you prepared to have a disposable $460 Xiegu radio?  I say look beyond the price.

    I would have suggested a Lab 599 TX-500 a few months ago, but seeing that they're made in Russia, they're no longer a viable choice.

    The other option is an Icom IC-705, which covers HF, VHF and UHF.  Of course, with the downside of the 705 is the price.  It's a quality piece of equipment, pay once, cry once.

    There's a big difference between boondocking and hiking, and every ounce counts when you're heading up hill or into the bush.  There's nothing like sitting in front of the fire or in a lean-to and working DX or listening to a shortwave station, as the sun sets over the horizon.  In most cases, there's little background noise, so weak stations are easy to copy.  One of my favorite memories was listening to the BBC on the last day of a rigorous 8 day hike, watching the sun set over a still pond, as we were serenaded by bullfrogs and owls. 


Offline JohnyMac

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Re: Back Packing Using A LFP Battery
« Reply #3 on: March 13, 2022, 10:40:48 PM »
All great comments.

Thanks for taking the time to share.  :cheers:
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Offline JohnyMac

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Re: Back Packing Using A LFP Battery
« Reply #4 on: March 14, 2022, 10:35:25 AM »
Maybe, the Elecraft KX2 with ATU. $1,200-. Again, only 10W.
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Offline FeedingFreedom

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Re: Back Packing Using A LFP Battery
« Reply #5 on: March 14, 2022, 12:45:08 PM »
I know you're not a CW guy (yet  ;) ), but I love my HB-1B. Transmits on 80m/60m/40m/30m/20m/17m/15m, and a general coverage receiver with CW and SSB, so you can listen to shortwave stations. 19 oz. with the internal lithium battery, and other than the encoder (which is a cheap replaceable part), it's pretty sturdy. I carry the whole station in a 5"x7" MOLLE pouch. No built-in speaker, so I usually use it with earbuds, and I carry a tiny unpowered speaker to be able to listen to broadcast or just tune around the bands. The whole shebang with my 3D printed paddles, earbuds, a QRP Guys half-wave with a few lengths of wire, and 25' of coax weighs around 2 pounds. Receiver is surprisingly good. My longest QSO to date is Germany from a lifeguard chair in Virginia, with a 20m inverted "V" propped up on a driftwood stick a few feet above the chair.

I like the internal battery, or it can be run off any power source from 9-14v.

Unfortunately, they're "sold out" for a while now, and I doubt they'll be making any more soon. I got both of mine used at hamfests, so keep your eye out. Last one I paid $70 for in a Nanuk case.  :fuckYeah:

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Offline JohnyMac

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Re: Back Packing Using A LFP Battery
« Reply #6 on: March 14, 2022, 10:40:53 PM »
Pretty cool! Thx FF.  :cheers:
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