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Re: FT-857D and a mobile amplifier
Is the PTT line cabled through to the Ameriton? If you are using RF sensing it may not be fast enough. I always cabled the PTT line through from accessory socket of the transceiver to the amp. If the FT857D senses bad SWR then it will trip the alarm in the slow changeover. Paul G. Chapman? MInsLM G4IJL? ? |
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Re: FT-857D not breaking 2m repeater squelch
Put up the vertical dipole. Using the antenna analyzer I have an SWR of 1.5:1 over 5MHz. Using the HT as a baseline test I was able to access the repeater on low power without issues. Connecting to the VHF antenna port on the 857D it was a no go. So I reprogrammed the radio for simplex with tone on the uplink frequency of 146.13MHz and tone 107.2. Using the HT as a receiver I keyed the 857D. No love from the repeater.
To answer some questions that I am recalling from memory. Yes, I do see the radio switching frequencies when I key the mic. Yes. I am using the correct antenna port, but I have to admit that I checked. I currently have a 106.5' antenna connected via an MFJ Smart Tuner on the HF port. For the life of me I still do not understand why I cannot access the repeater with this radio when my HT sitting right next to the radio can. At this time if I had purchased the radio I would be selling it. However, it was a Christmas gift from my wife after by beloved TS-50S died. So, I must keep it. The parameters again are Mode = FM Shift = 600KHz Shift = - (minus) Tone = 107.2 on both R and T ARS = ON Tfreq = 146.130 Rfreq = 146.730 Tfreq displayed on keydown = yes TEN Displayed = yes (-) Displayed = yes Power = 5W up to 30W Ant = Vertical Dipole SWR = 1.5:1 So there we have it. HT keys repeater with the same antenna on 1W but 857D does not key the repeater with 5W~30W. I must conclude that the 857D is possibly NOT transmitting the tone. You guys have been a great help and I truly appreciate all your input. Brian D KF6BL S/V Takara |
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Re: FT-857D not breaking 2m repeater squelch
Brian Another quirk I learned with mine.? If you have the programming cable connected from the rig to a computer but the computer is off, you may lose repeater access.? Yaesu could never tell me why. Sent from AOL Mobile Mail On Thursday, June 20, 2019 sv.takara <FT-857@...> wrote:
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I have read all the replies and have indeed started to build a 2M Vertical Dipole.. So I ma not ruling out that it could be an antenna issue. However... |
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Re: FT-857D not breaking 2m repeater squelch
¿ªÔÆÌåÓýBrian, You mentioned the radio had been opened for MARS/CAP.? In that case the offset may not work, note of the frequency readout goes down 600 when in transmit.? If not you will need to place the repeaters RX/TX, tone, etc. in a memories.?? Regards, Phil / K4PO ? ? |
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Re: FT-857D not breaking 2m repeater squelch
John Guillory
Do you have the tone enabled?? If it is set, but not enabled, saying I think t-enc on the display, your not going to be transmitting it, thus you won't break the repeaters squelch.? Scroll on the bottom menu till you see TONE, then press that button till you see something with a -enc on the end of it on the top left of the display.
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Re: FT-857D not breaking 2m repeater squelch
William Quillen
I don't work above HF too often. I hope to do more with it some day. Meanwhile here's some suggestions: Is the FT-857D installed in a vehicle? Wherever you have installed the radio, it might help to check the ground and power configuration that you have for the station. Or alter the setting for the station just to try some hunches about grounds and power conditions. BTW, I assume you've tried to contact other stations besides the one repeater - to get a "second opinion". Finally, the line-of-sight condition has to be sufficient on the bands above HF - again, trying different locations might help to troubleshoot the problem. 73, KC3CXZ
On Thursday, June 20, 2019, 6:23:34 PM EDT, Joe Pugliano joe_aj3o@... [FT-857] wrote:
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I would have to agree with the antenna sentiment. You are 20+ miles away and while the repeater is probably running 50 watts, possible more, your effective radiated power is close to nil as the handheld antennas are meant only for handhelds as the body of the handheld is part of the antenna system. Buy a cheap 1/4 wave antenna and I would venture to say that you would have no problems even at 5 watts as the repeater is much higher in elevation than you. Better yet, cut 4 pieces of copper wire 19 inches long and one piece 19-1/4" long. The 19-1/4" long is your radiator with the 1/4" extra bent over at the top to form a small loop. Solder the longer piece to the center pin of a chassis mount pl259 and the four other pieces at 19" long to the four holes of the chassis mount. Solder the center conductor of the coax to the center pin and the shield of the coax to the frame of the chassis mount. Tie a piece of string to the vertical wire and hang it from anything? nearby. This would work good for you until you acquire an actual antenna. Joe / AJ3O
On Thursday, June 20, 2019, 06:59:45 AM EDT, pete VE3HOH-W3 ve3hoh@... [FT-857] wrote:
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Try a real antenna!?
From: FT-857@... on behalf of sv.takara@... [FT-857]
Sent: Thursday, June 20, 2019 12:51 AM To: FT-857@... Subject: [FT-857] FT-857D not breaking 2m repeater squelch ?
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My 857d seems to have a problem. This is the first time I have tried VHF with this radio. I have programed it as follows...
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Re: FT-857D not breaking 2m repeater squelch
Peter Krarup
¿ªÔÆÌåÓýThere¡¯s no reason the 857 can¡¯t run an HF antenna. I¡¯m running a 144/440MHz Comet-NCG SBB-1 with excellent results. ? Peter KK6YGH ? From: FT-857@... <FT-857@...>
Sent: Thursday, 20 June, 2019 11:56 To: FT-857@... Subject: Re: [FT-857] FT-857D not breaking 2m repeater squelch ? ? It seems like putting an HT antenna on FT857 is not a good idea!? It's not surprising that you can't hot the repater. ? I have 5 watt HTs here and the ONLY repeater I can hit with them (from the 2nd storey!) is about 2.5 air miles away! ? Give that poor FT857 a chance to show you what she can do with a decent outside antenna! ? Bry, AF4K ? From:
FT-857@... <FT-857@...> on behalf of
sv.takara@... [FT-857] <FT-857@...> ? ?
My 857d seems to have a problem. This is the first time I have tried VHF with this radio. I have programed it as follows... ?
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Re: FT-857D not breaking 2m repeater squelch
I have read all the replies and have indeed started to build a 2M Vertical Dipole. So I ma not ruling out that it could be an antenna issue. However...
If a HT can hit a repeater 22 miles away with 1W in my shack, then in theory, the 857D with the same antenna attached should also be able to do this with 5W (minimum allowable power). Yes, the HT frame (not the human holding the radio as we absorb RF energy, not reflect it) is acting as the counterpoise to the antenna. So it goes to show that the frame of the 857D is greater in area than a HT. On top of that, I know that a cournterpoise is needed and I had one on when I was testing. Watt meter showed 4W output and SWR showed about 1.3:1. It is possible that a common mode current is building up and preventing me a clean signal. The radio is showing TEN and when I key the mic, the repeater input of 146.13MHz is shown. So as for programming I believe all the parameters are correct. Some specifics... Power is provided by a 12VDC 22AH AGM battery. SOC on the battery is 80+% on key down. So there is ample power available. As far as antennas are concerned, I do have an ICOM IC-707 with HF antenna aboard my boat. it works fine. It is just a 35' wire with tuner and the appropriate ground both wire and seawater. I do understand antennas. With that in mind, I must assume that the radio is not at fault. I shall concentrate on the antenna. It should be finished tomorrow. I will let you know how it turns out. Thanks for everyone's comments. Brian D KF6BL S/V Takara |
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Re: FT-857D not breaking 2m repeater squelch
Check your settings again, and be sure you see the repeater input frequency show up when transmitting and the tone function is turned on. Its a great radio. K3CLT Chuck Tobias
On Thursday, June 20, 2019, 6:29:09 AM EDT, sv.takara@... [FT-857] wrote:
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My 857d seems to have a problem. This is the first time I have tried VHF with this radio. I have programed it as follows... |
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Re: FT-857D not breaking 2m repeater squelch
Bry Carling
¿ªÔÆÌåÓý
It seems like putting an HT antenna on FT857 is not a good idea!? It's not surprising that you can't hot the repater.
I have 5 watt HTs here and the ONLY repeater I can hit with them (from the 2nd storey!) is about 2.5 air miles away!
Give that poor FT857 a chance to show you what she can do with a decent outside antenna!
Bry, AF4K
From: FT-857@... on behalf of sv.takara@... [FT-857]
Sent: Thursday, June 20, 2019 0:51 To: FT-857@... Subject: [FT-857] FT-857D not breaking 2m repeater squelch ?
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My 857d seems to have a problem. This is the first time I have tried VHF with this radio. I have programed it as follows...
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FT-857D and a mobile amplifier
Good morning everyone,? I've been trying to make a FT-857D play nice with an Ameritron ALS-500M mobile amplifier in my Dodge Journey for SSB phone contacts, mostly 40 meter net check-ins while I commute from northern Ohio to Southfield, Michigan and back several days/week.? Some background first:? My 857-D and amplifier are powered by three 100 amp hour 12V batteries recharged from a 100W solar panel on the roof of the vehicle.? I have had this setup for several years now and alternately have been using both the Alinco DX-70 and the FT-857D, just without the amplifier, and both radios work just fine.? So here is the issue, a few months ago I purchased the mobile amplifier.? When I connected the Alinco DX-70 radio to the amp with a relay cable, it keyed the amp fine with the stock hand mic and I could push 300+ watts out the Tarheel screwdriver antenna by driving 50 watts from the Alinco.? The older Alinco radio has miserable noise filtering in the mobile, so after a week I replaced the Alinco with the 857D to drive the amp.? But with the FT-857D, the amp goes into alarm mode as soon as I key the hand mic; it doesn't matter if I'm driving the amp with FM or SSB, and as little as 5 watts from the 857 into the amp will send the amp into alarm.? Ameritron says that a delay is needed because the amp is getting RF before it's relay goes into TX, hence the alarm to protect the amp.? So maybe the Alinco had just enough delay......(?)? ?By the way I have not posted this in the Ameritron - Amps group yet.? Thanks, Matt KD8NCP, Sylvania, OH |
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Re: FT-857D not breaking 2m repeater squelch
¿ªÔÆÌåÓýAgreed and if you check the SWR of that antenna, it's probably VERY high when you try to transmit.? Why?? An HT antenna is designed around the fact that your hand holding the body of the radio becomes the RF ground.? If you really must use the HT antenna, connect a counterpoise connected to the shield (coax braid) of the HT antenna. ?? Also make sure the antenna is vertical, away from all metal as much as possible, and is ideally OUTSIDE. --David KI6ZHD On 06/20/2019 03:59 AM, pete VE3HOH-W3
ve3hoh@... [FT-857] wrote:
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Re: FT-857D not breaking 2m repeater squelch
toggle quoted message
Show quoted text
On Jun 20, 2019, at 3:59 AM, pete VE3HOH-W3 ve3hoh@... [FT-857] <FT-857@...> wrote:
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Re: FT-857D not breaking 2m repeater squelch
"Try a real antenna"
What constitutes a "real" antenna. Is not an antenna that works constitute "real"? I am sure that the antenna is part of the equation however, if the antenna works for a HT, inside, low power, it should work for a larger radio. It is possible the antenna is having an adverse affect, but using both a watt meter and antenna analyzer tell me it is working the way it was designed to work. Thanks for the suggestion. |
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Re: FT-857D not breaking 2m repeater squelch
Brian, You stated that the tone was ON.? When you are in Multi function row "e" you should see "TEN" displayed at the top of the screen.? If not, press the A-TON key until the TEN is displayed. Hope this?helps. 73 W7RTL Rich
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Re: FT-857D not breaking 2m repeater squelch
I would have to agree with the antenna sentiment. You are 20+ miles away and while the repeater is probably running 50 watts, possible more, your effective radiated power is close to nil as the handheld antennas are meant only for handhelds as the body of the handheld is part of the antenna system. Buy a cheap 1/4 wave antenna and I would venture to say that you would have no problems even at 5 watts as the repeater is much higher in elevation than you. Better yet, cut 4 pieces of copper wire 19 inches long and one piece 19-1/4" long. The 19-1/4" long is your radiator with the 1/4" extra bent over at the top to form a small loop. Solder the longer piece to the center pin of a chassis mount pl259 and the four other pieces at 19" long to the four holes of the chassis mount. Solder the center conductor of the coax to the center pin and the shield of the coax to the frame of the chassis mount. Tie a piece of string to the vertical wire and hang it from anything? nearby. This would work good for you until you acquire an actual antenna. Joe / AJ3O
On Thursday, June 20, 2019, 06:59:45 AM EDT, pete VE3HOH-W3 ve3hoh@... [FT-857] wrote:
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Try a real antenna!?
From: FT-857@... on behalf of sv.takara@... [FT-857]
Sent: Thursday, June 20, 2019 12:51 AM To: FT-857@... Subject: [FT-857] FT-857D not breaking 2m repeater squelch ?
?
My 857d seems to have a problem. This is the first time I have tried VHF with this radio. I have programed it as follows...
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Re: FT-857D not breaking 2m repeater squelch
Brad
¿ªÔÆÌåÓýyour Ht antenna is not a real antenna for the 857D. you are not providing the ground to make it work properly as the match on an Ht antenna is not a true 1/2 half wave or better. it is a 1/4 wave.you would need a ground counter poise. also you don't get any real gain with an ht antenna. suggest you make a 2 meter vertical dipole and give it another go.? 2 meter dipole it 39" long or about 19.5" each leg. one leg to ground one to center of coaxial cable. On 6/20/2019 12:51 AM,
sv.takara@... [FT-857] wrote:
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Jim