Re: FT-817 antenna port selectable by memory channel?
Tim, I have set all bands to be rear on my radio as I have an external antenna switch and a Diamond band splitter.? All UHF/VHF goes out one pipe and everything else goes out the other.
--
Al Skierkiewicz
WB9UVJ
|
Re: FT-817 antenna port selectable by memory channel?
Thanks all!?
Sounds like I just need to select the VHF bands and set those, and the HF and set those.
Good warning to check a band before i use it too, just to be sure that it's not selected for the wrong band.
Honestly, I really don't like the feature and would as soon as happily disable it and manually switch antennas. That's more in line with 40 years of training!?
I'd have been just as happy with one port at the back and do something different with the space on the front. It's not THAT much of a problem to have antenna connector on the back, it's not like 99% of the rest of the radios in the world aren't like that!?
I can think of many other features I'd rather have had than two antenna ports.?
73, Tim
|
Re: FT-817 antenna port selectable by memory channel?
It is stored by band though.
--
Al Skierkiewicz
WB9UVJ
|
Re: FT-817 antenna port selectable by memory channel?
Hi Tim - I think the answer to this is 'No, not based on a memory channel, but it doesn't matter!'.
From KA7OEI's FT-817 Pages..."Front and Rear Antenna is selected via menu item #7 and different antenna selections may be made for HF, 6 meters, FM Broadcast, Aircraft band, 2 Meters, and UHF.? By default, HF uses the rear connector and all others use the front."
73 - Martin, G4EFE
|
FT-817 antenna port selectable by memory channel?
Hi all -
Is it possible to configure the 817 to automatically switch antenna ports (front/rear) based on a memory channel?
EG, I save the VHF/UHF repeaters I use as channels, with the front port auto-selected, and the HF bands go out the "default" VFO setting of rear port?
73, Tim KA4LFP
|
tnx Guy, Q1104 looks good, Q1088 seems ok.
|
Hi,
Have a look at transistor Q1104 near connector J1045 on the diagram and soldered on the underside of the PCB, near S1001.
This MOSFET is quite common and not expensive. It's also a very efficient and fast (unwanted) fuse.? ;-)
I hope it will be usefull to your case.
Guy
Hi to all,
my 817 stopped working, following faults: no receiving and transmitting.Display is working, i can switch bands and freq,, but no output and when press ptt then i cannot hear any relays switching, also when i change bands i cannot hear that any relay is switching.I did reset the radio, but nothing.Where can i look?
|
Hi to all,
my 817 stopped working, following faults: no receiving and transmitting.Display is working, i can switch bands and freq,, but no output and when press ptt then i cannot hear any relays switching, also when i change bands i cannot hear that any relay is switching.I did reset the radio, but nothing.Where can i look?
|
Several years ago, a friend showed me how to wind toroids lto make traps. I use a trapped end fed wire on 20, 30, and 40 meters for SOTA.?
Sometimes on 20 I will see 3 bars, and feel safe to operate. If I saw four, I'd be a little hesitant. I need to bring the RigExpert along sometime, to see what three bars might mean for a SWR measurement.?
Mark N0MTN?
On Sat, Feb 25, 2023 at 10:14 AM, Robin Kidd <w4ien@...> wrote: AMEN, well said!! Robin Kidd? W4IEN EM73vx w4ien@... On Feb 25, 2023, at 11:40, Larry Macionski via groups.io <am_fm_radio@...> wrote:
?Larry-
Lower reflected is always better. It is arbitrary in the case of the FT-718... Lower reflected bars only means your finals are operating in a "safer" zone that if it was all bars..
All too many people demand erroneously that 1:1 at all times. Hence dreams of SteppIR's.. as that antenna is the only one that will alow 1:1 across the band at any given frequency..
If you are tuning the antenna tune for minimum bars (minimum smoke)
Yet you will find the next outing and re-erection of the same antenna it will be different..
Always remember you can measure manyparamaters with lab accuracy test equipment and boast to your friends, you have precision that rivals the bureau of Standards...
But, when I started in Ham Radio I tuned my transmitter with a #47 piolet light bulb and I had a ball working stations with 15 watts CW.. (Well 15 watts was the claim of the author of the single 6V6 transmitter I home brewed. You know what that 15 watts I claimed was input, not RF output to the antenna.
Didn't care.. Today's ham is anal retentive with precision watt meters, expensive low loss coax, mandatory baluns, and $1500 radios, wishing they could afford the $3000 radio..?
They are not happy and not enjoying Amateur radio.. Perhaps the main reason so many loose interest-- Many also claim it's beyond their budget.. You I know hams that are happy with $200 invested in their station.. Including a VHF talkie.
|
AMEN, well said!! Robin Kidd? W4IEN EM73vx w4ien@...
toggle quoted message
Show quoted text
On Feb 25, 2023, at 11:40, Larry Macionski via groups.io <am_fm_radio@...> wrote:
?Larry-
Lower reflected is always better. It is arbitrary in the case of the FT-718... Lower reflected bars only means your finals are operating in a "safer" zone that if it was all bars..
All too many people demand erroneously that 1:1 at all times. Hence dreams of SteppIR's.. as that antenna is the only one that will alow 1:1 across the band at any given frequency..
If you are tuning the antenna tune for minimum bars (minimum smoke)
Yet you will find the next outing and re-erection of the same antenna it will be different..
Always remember you can measure manyparamaters with lab accuracy test equipment and boast to your friends, you have precision that rivals the bureau of Standards...
But, when I started in Ham Radio I tuned my transmitter with a #47 piolet light bulb and I had a ball working stations with 15 watts CW.. (Well 15 watts was the claim of the author of the single 6V6 transmitter I home brewed. You know what that 15 watts I claimed was input, not RF output to the antenna.
Didn't care.. Today's ham is anal retentive with precision watt meters, expensive low loss coax, mandatory baluns, and $1500 radios, wishing they could afford the $3000 radio..?
They are not happy and not enjoying Amateur radio.. Perhaps the main reason so many loose interest-- Many also claim it's beyond their budget.. You I know hams that are happy with $200 invested in their station.. Including a VHF talkie.
|
Larry-
Lower reflected is always better. It is arbitrary in the case of the FT-718... Lower reflected bars only means your finals are operating in a "safer" zone that if it was all bars..
All too many people demand erroneously that 1:1 at all times. Hence dreams of SteppIR's.. as that antenna is the only one that will alow 1:1 across the band at any given frequency..
If you are tuning the antenna tune for minimum bars (minimum smoke)
Yet you will find the next outing and re-erection of the same antenna it will be different..
Always remember you can measure manyparamaters with lab accuracy test equipment and boast to your friends, you have precision that rivals the bureau of Standards...
But, when I started in Ham Radio I tuned my transmitter with a #47 piolet light bulb and I had a ball working stations with 15 watts CW.. (Well 15 watts was the claim of the author of the single 6V6 transmitter I home brewed. You know what that 15 watts I claimed was input, not RF output to the antenna.
Didn't care.. Today's ham is anal retentive with precision watt meters, expensive low loss coax, mandatory baluns, and $1500 radios, wishing they could afford the $3000 radio..?
They are not happy and not enjoying Amateur radio.. Perhaps the main reason so many loose interest-- Many also claim it's beyond their budget.. You I know hams that are happy with $200 invested in their station.. Including a VHF talkie.
|
Hi Larry, If you have an SWR meter for HF, it¡¯ll probably be fine for 6 m. So long as the directional coupler in it is less than ¦Ë/20, about 30 cm (12¡±) it should work fine for you. If you have one for 2 m or above, that will probably be fine too although you may not be able to achieve full scale deflection on the ¡°set¡± or ¡°fwd¡± setting. If, for instance the forward setting only will reach half scale, just extrapolate the physical position of the reflected setting and read off the SWR there. 73¡.Eric VK2VE. From: [email protected] < [email protected]> On Behalf Of lbakely Sent: Saturday, 25 February 2023 07:41 To: [email protected]Subject: [ft817] "SWR" Meter Bars? I put up a dipole for 6 meters (fed by RG8x coax). I don¡¯t have an SWR meter that¡¯s specified for 6 meters, so I¡¯m at the mercy of the ¡®817¡¯s internal ¡°SWR Meter¡± display as I test the antenna out. There are a lot of great posts in the group that dive into the details of the ¡°SWR¡± display, but I still can¡¯t resist asking: How many ¡°bars¡± in the FT-817¡¯s SWR display do you consider ¡°acceptable?¡± I realize that this is a subjective term and depends on a lot of other conditions. We all want it to be as low as possible (no bars), but I¡¯m wondering how many bars you tend to tolerate before feeling that you need to trim the antenna. For the sake of argument (because the meter gives a relative indication of reflected power, not SWR), let¡¯s assume we¡¯re operating at 5 Watts. Thanks again! Larry, WA2VKG
|
if the radio flashes "high swr", that's it. To me acceptable is no more than 3 bars, if I'm not going to TX for long. On Friday, February 24 2023, 12:40:34, lbakely wrote: For the sake of argument (because the meter gives a relative indication of reflected power, not
SWR), let¡¯s assume we¡¯re operating at 5 Watts. -- Those who build beneath the stars build too low. --- Edward Young
|
I put up a dipole for 6 meters (fed by RG8x coax). ?I don¡¯t have an SWR meter that¡¯s specified for 6 meters, so I¡¯m at the mercy of the ¡®817¡¯s internal ¡°SWR Meter¡± display as I test the antenna out.
There are a lot of great posts in the group that dive into the details of the ¡°SWR¡± display, but I still can¡¯t resist asking:?
How many ¡°bars¡± in the FT-817¡¯s SWR display do you consider ¡°acceptable?¡±? I realize that this is a subjective term and depends on a lot of other conditions.? We all want it to be as low as possible (no bars), but I¡¯m wondering how many bars you tend to tolerate before feeling that you need to trim the antenna.?
For the sake of argument (because the meter gives a relative indication of reflected power, not SWR), let¡¯s assume we¡¯re operating at 5 Watts.
Thanks again!
Larry, WA2VKG
|
On Sat, Sep 12, 2020 at 01:49 PM, Steve wrote:
OT I know so apologies, but- the Windcamp is a three cell battery pack with a coaxial DC connection from the charger. If the "smarts" are indeed all in the charger, then it beats me how it balances those three cells in the pack? Either they are protected cells or there's a balance board in the pack as with the Bioennos. That tiny PCB inside the replacement Windcamp cover plate is not a balance charge board, I know because I bought a gold anodised one for an abandoned project. I hear of a number of those Windcamp chargers packing up? I'd love to use a Windcamp for the nippy charging times alone, but I have reservations.
--
Steve, G4VRR.
I have opened up two of these Windcamp battery packs, and they contain a smal BMS board inside. I hope this helps. 73 de Diego EC1CW
|
Hi Diego,
I have a copy of that yellow book, the pack it reference for the yaesu ft817, and you are correct, the book is for the original ft817,? mine was made 2002.
Best regards,
Rick VE1RNM?
Is it possible that the Yellow Book refers to the early 817 that had a smaller capacity 1000mAh NiCd battery instead of the later 1500mAh NiMH? The ratio of the charging currents reported, 190mA in the Yellow Book vs 250mA in the current manual would fit. 73 de Diego EC1CW
|
I am the inventor of the original PowerPole connector for the FT-817.? I have lots of experience with the problem you are describing and is, in fact, the main reason I created the adapter.
I guarantee that Marty kb8bj is correct.? The barrel plugs for the FT-81x series are crap.? Repeated plugging and plugging leaves the plastic tip inside the radio.? Consequently, when you use a new plug, it can't seat correctly and you think the new plug is broken!
To fix this, remove the yellow tip from inside the radio.? There are 2 methods.? 1) heat a needle under a flame, insert into the stuck yellow tip, and extract.? Using a plyer to hold the hot needle is optional but highly recommended.? 2) put a drop of gel type superglue on the end of a toothpick, glued to the yellow tip, and extracted after a suitable amount of cure time.
Best of luck,
jon N0WL
ps.? I quit making the adapter.? Sotabeams may still have a few left.? Otherwise you are stuck buying the Chinese knockoff from Windcamp (which is inferior to the original.)? Or you can make your own with a 3D printer and the instructions on Thingiverse.com
|
Is it possible that the Yellow Book refers to the early 817 that had a smaller capacity 1000mAh NiCd battery instead of the later 1500mAh NiMH? The ratio of the charging currents reported, 190mA in the Yellow Book vs 250mA in the current manual would fit. 73 de Diego EC1CW
|
HI
Something the is not obvious,? look in the bottom of the receptacle of the
817. See if a small piece of the plug from you usual power plug isn't stuck
in the bottom of the unit preventing the new plug to seat properly.
If so maybe a hot pin stuck in it will bring it out.
Marty kd8bj
toggle quoted message
Show quoted text
On 2/22/23 12:03, JD Erskine VA7OTC via groups.io wrote: On 2023-02-22 08:35, steve wellon via groups.io wrote:
Hi hopefully someone can help me out i have just purchased a powerpole
connector for my ft-817 however on connecting it up today? and
powering up? it will not power up ? hoiweever going back to the
supplied cable with the radio it works fine i wonder has anyone else
had this issue any help would be greatly appreciated many thanks
???? Steve? M0SAS . Hullo Steve,
Is this one of the wee blocks that bolts on to the rear panel of the radio, or a premade cable, or did you make it?
Regardless, it may be a straightforward continuity problem.
Check that out with your meter (DMM, what have you.) If you don't have one, yet, . . . that might be the next purchase. One may use other means as well.
If it checks out, what about the supply cable that connects to it?
In most troubleshooting situations adjust only one thing at a time. It isolates the changes made and helps understand the situation. There may indeed be times when a "shotgun" approach is warranted, however perhaps best to start off without that for now.
Cheers, John
|
Make sure the PPs are inserted in their housing.? They should be all the way forward over the flat piece of metal in the body housing.
Polarity should be correct in the PP.
Otherwise I would be concern if the FT817 PP adapter is made as it should be.
73, ron, n9ee/r Ron Wright, N9EE/R Hernando Co ARES EC
Spring Hill, Florida also n9ee55@...
On Wednesday, February 22, 2023 at 01:03:26 PM EST, JD Erskine VA7OTC via groups.io <va7otc@...> wrote:
On 2023-02-22 08:35, steve wellon via groups.io wrote:
> Hi hopefully someone can help me out i have just purchased a powerpole
> connector for my ft-817 however on connecting it up today? and
> powering up? it will not power up ? hoiweever going back to the
> supplied cable with the radio it works fine i wonder has anyone else
> had this issue any help would be greatly appreciated many thanks
>
>? ? ? Steve? M0SAS .
Hullo Steve,
Is this one of the wee blocks that bolts on to the rear panel of the
radio, or a premade cable, or did you make it?
Regardless, it may be a straightforward continuity problem.
Check that out with your meter (DMM, what have you.) If you don't have
one, yet, . . . that might be the next purchase. One may use other means
as well.
If it checks out, what about the supply cable that connects to it?
In most troubleshooting situations adjust only one thing at a time. It
isolates the changes made and helps understand the situation. There may
indeed be times when a "shotgun" approach is warranted, however perhaps
best to start off without that for now.
Cheers, John
--
J. D. Erskine
VE7MHI VA7OTC
CN88hk VA7RCN
Victoria,? BC
|
Al WB9UVJ
Larry Macionski
EC1CW Diego