New Tuner - Recommendations?
开云体育What modes and power do you wish to operate? ?I use an LDG AT-100PROII auto tuner. It’s good for 100W SSB, but only 35W digital. It’s a nice small form factor and there’s a Yaesu cable to connect it to the FT-857D. You can get an AT-200PROII, and it will handle higher power on digital. They actually are available all the way up to 1000W.?Jim S. KM6WWY? On Oct 7, 2023, at 4:57 PM, David Smith <flashover52@...> wrote:
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开云体育Hi David...take a look ath the ATU-130 on
amazon....I bought one to go portable for POTA but haven't got
there yet because of other problems, not related to this
unit....should work since the 857 is only rated 100 w.... Ron WA8KQF On 10/6/2023 9:52 PM, David Smith
wrote:
I recently became the owner of a FT-857. I've been using a vertical whip and tuning it each time to get it resonant on the respective operating band. I am looking at some other multi-band wires that would be best to use with a tuner.? |
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An EFHW does not need a tuner if operated on the multiples of the lowest band. For example, when operating portable I use a 63ft 40m EFHW which includes the 49:1 transformer and it is resonant on 40, 20, 15, and 10m with no tuner and under 1:5 SWR. That said, the FT857 is pretty aggressive about folding power back with modest SWR, which always gave me trouble when I used hamsticks mobile.
=Vic= |
开云体育I have the FT857D with ATU LDG Z-11proII and it works perfect . I connect my 3ele triband yagi.
OD5OJ
Bassam
Sent from From: [email protected] <[email protected]> on behalf of Leonard K. Pennock <leonardpennock@...>
Sent: Sunday, October 8, 2023 5:06:47 PM To: [email protected] <[email protected]> Subject: Re: [FT-857] New Tuner - Recommendations? ?
I like the LDG Z11ProII for a portable setup.
It is about the same width as the body of the FT-857 so it stacks nicely.? The advantages it has for a backpack setup is it can be powered by 6 to 16 volts DC at 300 mA Max. 20 uA standby current. This means the radio can power it directly with the correct cable. Or you can install a 8 AA pack inside the case. It is also pretty light at 1.5lb which is another advantage for portable operation. Main down side is it only good for 30W digital modes but the 857 really shouldn't be doing anymore than that either especially portable. Leonard K. Pennock AD7AS Those who walk bravely through life, unafraid of loss or failure, find that they very rarely lose or fail. On 10/6/23 6:52 PM, David Smith wrote: > I recently became the owner of a FT-857. I've been using a vertical whip > and tuning it each time to get it resonant on the respective operating > band. I am looking at some other multi-band wires that would be best to > use with a tuner. > > I am hoping to use this radio while portable in the future. What > suggestions do folks have on current tuners that are approximately the > same footprint/width of the radio for packing purposes? > > David > W6RKT > |
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From: [email protected] <[email protected]> on behalf of OD5OJ <od5oj@...>
Sent: Sunday, October 8, 2023 5:22:01 PM To: [email protected] <[email protected]> Subject: Re: [FT-857] New Tuner - Recommendations? ?
I have the FT857D with ATU LDG Z-11proII and it works perfect . I connect my 3ele triband yagi.
OD5OJ
Bassam
Sent from From: [email protected] <[email protected]> on behalf of Leonard K. Pennock <leonardpennock@...>
Sent: Sunday, October 8, 2023 5:06:47 PM To: [email protected] <[email protected]> Subject: Re: [FT-857] New Tuner - Recommendations? ?
I like the LDG Z11ProII for a portable setup.
It is about the same width as the body of the FT-857 so it stacks nicely.? The advantages it has for a backpack setup is it can be powered by 6 to 16 volts DC at 300 mA Max. 20 uA standby current. This means the radio can power it directly with the correct cable. Or you can install a 8 AA pack inside the case. It is also pretty light at 1.5lb which is another advantage for portable operation. Main down side is it only good for 30W digital modes but the 857 really shouldn't be doing anymore than that either especially portable. Leonard K. Pennock AD7AS Those who walk bravely through life, unafraid of loss or failure, find that they very rarely lose or fail. On 10/6/23 6:52 PM, David Smith wrote: > I recently became the owner of a FT-857. I've been using a vertical whip > and tuning it each time to get it resonant on the respective operating > band. I am looking at some other multi-band wires that would be best to > use with a tuner. > > I am hoping to use this radio while portable in the future. What > suggestions do folks have on current tuners that are approximately the > same footprint/width of the radio for packing purposes? > > David > W6RKT > |
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On Sat, Oct 7, 2023 at 09:07 PM, Easwaran Unni Tharakkal VU2TE wrote:
You didn't mention that the ZS6BKW is an antenna along the lines of a G5RV off center fed dipole. Tom Horne
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On Sat, Oct 7, 2023 at 07:57 PM, David Smith wrote:
I recently became the owner of a FT-857. I've been using a vertical whip and tuning it each time to get it resonant on the respective operating band. I am looking at some other multi-band wires that would be best to use with a tuner.?I realize that you asked about an antenna tuner but you may want to consider using an antenna coupler. The difference between a Tuner and a Coupler is that Tuners are colocated with the transmitter or transceiver and a coupler is located at the feed point of the antenna. I own an SGC SG-235 . I am NOT suggesting it for your use as it is too large and too heavy for hiking in to locations you will want to activate. It has done a very nice job for me tuning a 90 foot long folded dipole from 160 down to six meters. I chose that coupler because it's power handling capability is 500 watts. I anticipated needing that power handling capability for using an amplifier with the FT-857 to send a full 100 watts of power so that both the FT-857 and the amplifier would be running at 1/3 of their maximum power outputs when handling digital signals at 100% duty cycle. SGC has other automatic antenna couplers that have a much smaller size and weight that will do what you need to do. One of the uses that the SGC couplers do a great job at is for tuning the coaxial feed to the feed point of a vertical antenna. I have used several non resonant verticals from 12 to 55 feet in height above mounting point. I also own an Icom AH-4 antenna coupler that I use with my FT-857 by connecting the coupler control wiring through an after market control converter. I would also think that the Icom AH-4 is too large and heavy for your purposes. SGC does have a smaller and lighter antenna coupler which might suite you very well. The SG-237 Smartuner is 9L x 7W x 1.85H inches and 2 pounds. I would think that might be within the size and weight that one could hike in and or up to an operating location without ending up tempted to abandon it. They run about $350 used. Tom Horne |
Jim
Ron
Vic WA4THR
OD5OJ
Tom Horne
