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Re: Digest Number 347
sly
'FT817@...' wrote:
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==== - - To unsubscribe from this group, send an email to: - FT817-unsubscribe@eg ...' Take a look to the attachment. |
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Re: Digest Number 347
sly
'FT817@...' wrote:
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==== - - To unsubscribe from this group, send an email to: - FT817-unsubscribe@eg ...' Take a look to the attachment. |
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Re: Voltage vs. Power out
Lionel K Curling
Hi
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You would be better off using a 12v 7 or 8 Ah gel cell battery I use one with my FT817 and get about 4 days with 5 watts before the battery voltage drops to 11 Volts. 73 Lionel VK3NM krandino@... wrote: Sorry if this is in the faq. I looked and didn't see it. Has anyone |
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Re: Missing RX coverage on EU models
Hi!
Do not worry Johan, I think the european model will cover the air band without any mods. At least the one I got few weeks ago covers it. 73 Reino, oh3ih --- In FT817@y..., "Johan Bodin" <sm6lkm.jbeab@s...> wrote: Hi Allon Xmas eve... When I asked the swedish dealer about possible delivery date, theanswer was "we don't know..."... Sweden's priority seems to be between zeroand nil at Yaesu :~( cover 108-136MHz!? Too bad... I was really looking forward to listen tothe air band... (It's legal to listen to any band here in Sweden.)solder ball configuration of US/European/Japanese versions?band RX.
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Re: SSB Filter Selection - Performance
Gary Mitchelson
I assume that with the opt SSB filter that it is used in the TX chain also??
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-----Original Message-----
From: w4wb@... [mailto:w4wb@...] Sent: Monday, June 04, 2001 9:43 PM To: FT817@... Subject: [FT817] Re: SSB Filter Selection - Performance Sounds like you are the first one to really say the SSB filter isworth anything. Maybe all of us ASSUMED since the specs were so close that the reality would be ho-hum )...do you think it would be possible to cram 2 in and somehow switch them? Well, one will remain filterless for the time being and the other gets filter swaps when needed. Yes, the "gross" specs lead us all to think that the filters were very much the same, but not so I think now. I will try to collect my data and post it at one time in the near future. Your use of Yahoo! Groups is subject to |
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Re: CAT-Interface circuit plan wanted! - The circuit
Chris;
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I built a simpler cable/converter that works well. Go to and look at the bottom of the schematic on page 2. I just built the serial interface part that is involved with the DB9 connector at bottom right. I was able to (tightly) get a bit of perfboard and the circuit inside the DB9 housing. I only used one of the Key or PTT lines though. If you want to build it I'll check on which one. Whichever it is uses a seperate shielded line also out of the DB9 shell and terminates in a 1/8" audio plug. I've used it a few times now with FTBasic to load/unload memories. Good luck! Tony, VE3TNW --- In FT817@y..., Christian.Frankl@t... wrote:
Thank you! |
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Re: Radio Shack switching 3 amp power supply
--- In FT817@y..., "Curtis, Tony" <acurtis@t...> wrote:
Regarding switching power supply noise...switching power supply with my '817 with very limited hash problems, none where Ihave wanted to operate. It is catalog number 22-503 at $49.99.Hi Tony, This PS was perhaps the first one identified for use with the 817 back last year. The problem found with it was lack of quality control. Some seem to work well while others (most) generate lots of trash RF. True of even the same lot. I noted in the FAQ that one would be well advised to take their 817 to RS and test the PS in the store until an acceptable one is found. Switching PS generate noise. No surprise, but how bad it is depends upon the shielding of the PS. For example, the PS inside my FT- 1000MP is quiet. The IPS CUP36-12-1 works well for me unless I have a long wire hooked directly to the rig or some other antenna very proximate to the PS. Since there is a limit to the amount of shielding that can be done within the size and weight of the CUP36, there is a low-level RF emission from it. The fact that you hear it under this situation means that your receiver is doing a good job. :- ) When I use shielded cables to my antenna (say > 10' away), I hear nothing from the PS. The 817 is nicely shield and doesn't hear it directly. My larger 25 A PS for other rigs like the FT-847 are well shielded and are unheard, but they are a LOT bigger than the CUP36 (that fit into my shirt pocket with my cell phone to give you some idea of how small it is). If you look in the Files sections under the folder "Rig Photos," the first file is a image I made showing the 817 with the RS 22-503 and the CUP36. 72 de Barry - W4WB |
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Re: Radio Shack switching 3 amp power supply
--- In FT817@y..., cfwinter@s... wrote:
*No* noise problems here with the RS switching PS...been using it for The trick is try to it with a front panel HF whip on 20 in the SSB or CW mode. That tells ALL. Its like a woman with out her make-up! Bill W9WCR |
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Re: SSB Filter Selection - Performance
Sounds like you are the first one to really say the SSB filter isworth anything. Maybe all of us ASSUMED since the specs were so close that the reality would be ho-hum )...do you think it would be possible to cram 2 in and somehow switch them? Well, one will remain filterless for the time being and the other gets filter swaps when needed. Yes, the "gross" specs lead us all to think that the filters were very much the same, but not so I think now. I will try to collect my data and post it at one time in the near future. I also have been trying to figure a good way to have both filters installed. The way to do it is to remove the ceramic filter and replace it with the mechanical SSB filter (some impedance matching likely required). The ceramic filter is small by comparison. If you are willing to remove the speaker (I'm not), then there is adequate space. I have my eye on the space for the TCXO. It will be a few weeks before I have time to really consider making this mod. If I can, then Menu #38 would be set to CW and the new SSB filter will be active as was the ceramic filter. NAR will flip the CW filter in and out. Best arrangement of all! 72 de Barry - W4WB |
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Re: SSB Filter Selection - Performance
--- In FT817@y..., "Don" <k7ugq@h...> wrote:
I am very interested in any data you have about the SSB filter. Atfirst "blush" the SSB filter is a waste of money. However, I have heardfrom others that it is a good "refinement" for the FT-817.OK Don, I will try to put something together soon and post it. 72 de Barry - W4WB |
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Re: CW Filter / IRC 500 hz installation
Don
Short of removing the filter physically from the radio, you are correct.
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----- Original Message -----
From: <WB4OOJ@...> To: <FT817@...> Sent: Monday, June 04, 2001 4:52 AM Subject: Re: [FT817] CW Filter / IRC 500 hz installation If you set fuction 38 to off I presume that will turn off the filter. Isthis correct? I guess the only reason to do that would to verify the filter is38.<BR> The NAR has no effect on it.<BR>filtered<BR> href=">but it sounds like the CW is partially getting cut off. On SSB the<BR>Questions ) see <a grou p/FT817/database</a><BR>href="></<BR> a><B R>href="<BR><BR> 0006 3108:N/A=662184/? ad:dmad/M=201903.1443829.3021311.1268964/D=egroupmail/S=1700063108:N/A=66218 4/R= 0/991652321+ target="_top"><img width=468height=60 src=" f" alt="Yahoo! Website Services- Click Here!" border=0><br>Yahoo! WebsiteServices- Click Here!</a></td>M=201903.1443829.3021311.1268964/D=egroupmail/S=1700063108:N/A=662184/rand=1 5295 5050"></td></tr>href="> grou p/FT817/database</a><BR>Questions ) see
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Re: CW Filter / IRC 500 hz installation
Don
Sorry that my post was misleading. I understand that the NAR switch does
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NOT perform any function when it comes to using the SSB filter. However, the prior post was a little confusing in that area. I often see others post messages that say to be sure you enable the SSB filter via the NAR function. This does not enable the SSB filter as it is always on once the function 38 is selected. However, NAR does enable the CW filter after the function 38 is selected. ----- Original Message -----
From: "Richard B Drake" <rich@...> To: <FT817@...> Sent: Monday, June 04, 2001 8:48 AM Subject: RE: [FT817] Re: CW Filter / IRC 500 hz installation I'm surprised that so many people find this confusing. Just like any other14 under, "Front Panel Controls and Switches".Questions ) see
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Re: SSB Filter Selection - Performance
Don
I am very interested in any data you have about the SSB filter. At first
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"blush" the SSB filter is a waste of money. However, I have heard from others that it is a good "refinement" for the FT-817. ----- Original Message -----
From: <w4wb@...> To: <FT817@...> Sent: Monday, June 04, 2001 8:23 AM Subject: [FT817] SSB Filter Selection - Performance --- In FT817@y..., "Don" <k7ugq@h...> wrote:Questions ) seeI am curious, did switching the NAR allow you to insert the SSBfilter?
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Re: Ethernet instead: WAS: USB (Univ Serial Bus) - No no no!
Blech? It's the same interface all the time, you just have to (I know
it's tough) set the interfaces the same on each end. Or maybe we should require the manufacturers to support USB, Firewire, IRDA, Bluetooth, ethernet, fast ethernet, gigabit ethernet, and NetBIOS, Appletalk, NFS, Netware... Oh I forgot all the flavors of token ring and all the rest of the network types and all the other ways of coding the data packets and control packets. Wait a minute HIPPI would be good, too. Really screams. Not to sound like a Luddite, but no thanks, serial is everywhere, and speed is not an issue here. I'd like my 5 year old Win98 laptop to be able to control a rig, as well as my latest Unix server. With a simple 3 wire cable and maybe a level converter. USB, ether, etc. as additionally supported types, OK, I'll go for that, but serial should be the base. tom wa2phw --- In FT817@y..., "Gregory W. Ratcliff" <gratcliff@p...> wrote: Serial ports! Blech. It's always the wrong type, wrong speed, wrongare followed.me outta lurk mode... No, no, no, no. Please, O Lord, no! No USB on |
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Re: USB, etc. for radios...
--- In FT817@y..., "Bill Wiese"<wiese@j...> wrote:
If I've gotta have a 'puter near my rig, it's gonna be a Palm orWinCE box (Linuxized?) with a lot of metal around it. No PCs. Or maybe the AgendaComputing MIPS-based Linux palmtopYou know, the agenda palmtop 1) runs linux 2) has fairly respectable processor specs and 3) has an audio in/out port. Can you say Pedestrian Mobile PSK31? -- Brian N0KZ |
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Re: Radio Shack switching 3 amp power supply
*No* noise problems here with the RS switching PS...been using it for
about six months. Even with it alongside my FT-817 with Rubber duck antenna I have *no* noise whatsoever - even on 440! On the HF bands I have a roof mounted g5RV/2 just above my shack. No noise problems here either...Guess it must depend on the individual unit. Fred KD7T --- In FT817@y..., Nick Marsh <nmar@e...> wrote: switching havepower noisewanted to operate. It is catalog number 22-503 at $49.99.Are you using an outside antenna? My RS supply like this is a real generator. I'd bet the output looks like a comb on an o-scope!Can't use it with 817 mounted antenna at all. |
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USB, etc. for radios...
Bill Wiese
I think you're speaking from a very PC-centric view. Many of us don't wanna
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use a PC - even a laptop - that drains more power heating the CPU than which is radiated by the antenna - just something "sick & wrong" about that. I want that battery life to be spent on op time putting out RF ;-) If I've gotta have a 'puter near my rig, it's gonna be a Palm or WinCE box (Linuxized?) with a lot of metal around it. No PCs. Or maybe the Agenda Computing MIPS-based Linux palmtop ( ) For adding small, low-power smarts to a variety of things, microcontrollers where everything is on one chip (or a couple) are the way to go. PICs & 8051s on the low end, 8051XAs, 68HC12s, MSP430s for 16-bit midrange, and ARM7 Thumbs for 32 bit speed/power efficiency. These all interface nicely via serial connections. And if one can't get the bit rate, parity, etc. right I suspect that person may have a hard time running a radio. I've never understood why it was so hard, as it's never taken me (in the past 20 yrs playing with 'puters) more than a minute or two to configure serial communications. [Except poss on PCs where there used to be IRQ wars - but that's a PC architecture fault.] I wouldn't let USB or Firewire Ether* anything near a radio trying to acquire a weak signal, unless I needed a noise generator for test purposes ;-) Just because it passes FCC Part B doesn't mean you want it raising the noise floor while working DX. In fact, if I really needed control of a radio and it had a USB port on it but no serial port I wouldn't buy it (unless I could reverse-engineer it and and one on). And this is from someone who eats, breathes, sleeps computers and writes imaging software for USB digital cameras... 73 Bill N6AOT San Mateo, CA Serial ports! Blech. It's always the wrong type, wrong |
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Re: FT 817 and Palm III interface, found a ICOM program
Nick Marsh
Geoff Wicks wrote:
Hi Geoff, I used PCRPilot on my Icom PCR1000 until I sold the radio. I really enjoyed using the Palm to change frequencies on the receiver. I also have a Palm program to monitor my OptoReceiver (A GRE computer controlled scanner). My only wish is that Opto had devised a method of uploading frequencies to the receiver. Which brings me to my point. If you do a program for the FT817, my interest is memory management only, uploading different memory profiles is the only reason I would connect the Palm to the 817. I believe there is a lot of support for a Palm version of FTBasic but just how complex does it need to be? Duplicating the radio front panel and controls on the Palm doesn't make much sense to me. Good luck on your endeavor... 73 Nick WB4SQI |
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