Re: [digitalradio] RFSM8000 and Yaesu FT857
Les, According to the RFSM web page, you need at *least* 300 to 3000 Hz audio response, and preferably 300 to 3400 Hz. Even an INRAD filter is not going to completely meet the 3000 Hz high end requirement, much less a 3400 Hz requirement. I think some other Yaesu rigs optionally support a 3300 Hz high end with an optional Yaesu filter, but my point was that if your low end is only 700 Hz, something is misaligned on your FT-857 to start with. You also could wind up paying for an INRAD filter and still find the low end or high end inadequate because the audio itself is rolled off too fast. Anyway, it is probably better to use something other than the FT-857 for digital modes as finding the ALC threshold is very critical for getting low IMD, even on PSK31, and drift is a problem on 2 meters unless you have the TCXO option, which my FT-857 does not. 73, Skip KH6TY - Original Message - From: Leskep To: digitalradio@yahoogroups.com Sent: Saturday, April 19, 2008 12:11 AM Subject: Re: [digitalradio] RFSM8000 and Yaesu FT857 Hi Skip The problem is that I need to pass around 2.4 khz of signal audio and with the stock filter it will not do it - have to look at a wider filter or an IC7000 hihi Regards Les From: kh6ty Sent: Saturday, April 19, 2008 11:40 AM To: digitalradio@yahoogroups.com Subject: Re: [digitalradio] RFSM8000 and Yaesu FT857 Les, Are you sure it is the IF passband? If your BFO injection frequency is set correctly, you should be able to pass 300 to maybe 2200 Hz. Otherwise, SSB phone will have no lows. If you have audio transformers in a homebrew interface, make sure they have the necessary frequency response. The best around here seem to be the little green ones from Radio Shack. 73, Skip KH6TY - Original Message - From: Leskep To: Digitalradio Sent: Friday, April 18, 2008 9:08 PM Subject: [digitalradio] RFSM8000 and Yaesu FT857 Greetings to all Is anyone using the FT857 for RFSM8000 I have been trying mine out over the past two days after getting a new Signalink USB interface Big problem with the RX passband - it is not wide enough using the standard filter supplied with the FT857 and consequently too much of the signal is cut off on the low frequency end of the audio Waterfall shows that there is no or very little audio up to about 700 hz making it impossible so far to make a connect even though it will spring up the called station every time Any ideas? I am now looking at an INRAD filter either 2500 or 2900 that would allow the required passband audio Any comments or feedback welcome Regards Les VK2DSG No virus found in this incoming message. Checked by AVG. Version: 7.5.524 / Virus Database: 269.23.1/1385 - Release Date: 4/18/2008 9:30 AM -- No virus found in this incoming message. Checked by AVG. Version: 7.5.524 / Virus Database: 269.23.1/1385 - Release Date: 4/18/2008 9:30 AM
Re: [digitalradio] Tracking update: Cheap soundcard order
Getting closer Apr 18, 2008 9:17 PM Departed FedEx location SYRACUSE, NY Hopefully they will arrive this morning... For $8.00 of shipping costs, the company might have saved a dollar or two by just using USPS rather than Fed EX, seems odd to use Fed EXPRESS for something that takes 5 days. Andy. On Thu, Apr 17, 2008 at 11:39 PM, Andrew O'Brien [EMAIL PROTECTED] wrote: FYI, the cheap USB sound adapters I ordered are at Apr 17, 2008 9:17 AM In transit OLIVE BRANCH, MS Still some ways away from western New York State. I expect them to arrive Saturday. I have all 6 spoken for and 2-3 late arriving requests. When they arrive, I will re-notify the people that first identified an interest . If anyone backs out, I will offer to the others that requested. -- Andy K3UK www.obriensweb.com (QSL via N2RJ)
[digitalradio] Sedate Skirmish ?
I know propagation is not great (SF 70 A:6 K:2) but we have had worse lately. I am not hearing much at all for the TARA Skirmish, try CQing PSK63 and Olivia on 40M last night and this morning, NO takers at all (25 watts here). Hardly anything on 20M today, not a whole lot on PSK31 either. -- Andy K3UK www.obriensweb.com (QSL via N2RJ)
[digitalradio] Re: 30 meters Olivia
--- In digitalradio@yahoogroups.com, Curt Givens[EMAIL PROTECTED] wrote: So where is the Olivia activity on 30m I've off the air since late January, antenna problem due to icing ready to get back on and I'd like to try Olivia more so where and what setting are most guys/gals using? If you park around 10140 with a wide filter selected, you will hear Pactor, PSK31, WSPR, JT65A frequently and every now and again up pops a Olivia CQ. Andy K3UK
[digitalradio] Re: Sedate Skirmish ?
--- In digitalradio@yahoogroups.com, Andrew O'Brien [EMAIL PROTECTED] wrote: I know propagation is not great (SF 70 A:6 K:2) but we have had worse lately. I am not hearing much at all for the TARA Skirmish, try CQing PSK63 and Olivia on 40M last night and this morning, NO takers at all (25 watts here). Hardly anything on 20M today, not a whole lot on PSK31 either. Oh, I forgot that 20th Century mode, what's it called... hmmm, yes that's it RTTY. Seems that mode is active , I just forgot to check the usual RTTY frequencies. Just saw a complaint that in Europe currently, 20M digital band is crowded with RTTY in TARA Contest. So, that is good news, there is some activity. RTTY now chirping away in my shack, CQ CQ TARA TEST YV5AAX worked him first try , so band IS open (20M), just not many PSKer's awake yet.
[digitalradio] USB external soundcards arrived BUT...
The USB soundcards arrived today from Computer Geeks. Alas, the first three packages I opened contain NO DRIVER CD despite the package saying it contains CD Driver. Computer Geeks are closed for the weekend, so I may have to wait until Monday. I doubt that I will be able to find the driver on the Internet unless someone here already has a working driver? Skip and Mel are two that I think have these devices. I will let those that wanted one know more as I am able to solve the issue. -- Andy K3UK www.obriensweb.com (QSL via N2RJ)
[digitalradio] USB external soundcards arrived FB
--- In digitalradio@yahoogroups.com, Andrew O'Brien [EMAIL PROTECTED] wrote: The USB soundcards arrived today from Computer Geeks. Alas, the first three packages I opened contain NO DRIVER CD despite the package saying it contains CD Driver. Upon a PC re-boot my system (XP HE) recongized the USB sound card and both Multipsk and DM780 work fine with them. So, those that said they wanted one... do you HAVE to have the drivers? If so, I will cancel your order. I suspect that most of us will be fine without them. Odd to have may ham software using just a little gadget plugged in the USB port. Will see how they do for decode later this evening, after yard work!
[digitalradio] Re: USB external soundcards arrived BUT...
Thanks Mel, I am not sure the ones I bought are exactly the same, I bought 6 at $6.95 each from Computer Geeks. I bought six since shipping cost was $8.00, several hams are going to buy one from me , so we will not waste mailing costs. I do have mine working on regular digital modes, the TX sound mixer is as one normally would expect, BUT there is NO receive audio mixer. There is a mixer but not volume control sliders and no LINE IN or MIC IN Boxes, just nothing. One error message I got when trying to do normal things was that the device does NOT have volume controls ( selected audio mixer has not recording controls). I guess it is possible that the sound card adapter is designed NOT to require volume adjustments. It decodes, RTTY, PSK31, etc just fine, but cannot turn up/down the received signal levels. On Sat, Apr 19, 2008 at 4:24 PM, Mel Whitten [EMAIL PROTECTED] wrote: Andy The CD is not required. Just plug in the C-Media USB Sound adapter and windows will find it, load drivers and the DV programs will see it in the list. In the windows mixer, the card (or probably any of the others, even sound blasters USB stuff) will be shown. Just go to it and adjust the sliders. The little 8 dollar USB Sound audio adapter/sound card will be identified as C-Media USB headphone set. GL/73 Mel
[digitalradio] Multiple Digital Modes: Time to get rid of most ?
Maybe it is because I am getting irritated because of the pinched nerve in my neck, I'm thinking maybe I have just had enough of the plethora of digital modes. Yes, it is K3UK saying that...the bloke that is always trying varying modes. I tried calling CQ numerous times in the TARA Skirming using various exotic modes, but ZERO respondents. No one answered Olivia CQ's, no one answered DominoEX CQ's, no Hell, and even no MFSK16 ! The only three modes that produced a response were PSK31, PSK63 and RTTY. Several months ago, I saw Dave AA6YQ make some comment about Winwabler not adding additional modes because (paraphrasing) RTTY and PSK31/63 are effective and the others too under utilized to warrant inclusion. While I have really enjoyed many experimental modes and had lots of fun testing, I think if I added up the time I have spent endlessly trawling the digital bands without results, I could have built a few more antennae, or added a few thousand more QSO via other modes. Heck, my CW could be even more practiced. So, for the next few months I am going to detox, and consolidate around the following modes. PSK31/63 (125/250 on VHF/UHF) RTTY MEPT-WSPR (passive operations) Narrow SSTV/Digital SSTV HF JT65A ALE 400 Time to put MFSK16,Hell, standard ALE, Olivia , Contestia, RTTYM, DominoEX , etc, in to the virtual junk-box. They can join their counsins from the non-virtual world...Betamax ,8 track tapes, and cassettes. All good applications, but no one uses 'em anymore. Andy K3UK
Re: [digitalradio] Multiple Digital Modes: Time to get rid of most ?
Time to put MFSK16,Hell, standard ALE, Olivia , Contestia, RTTYM, DominoEX , etc, in to the virtual junk-box. They can join their counsins from the non-virtual world...Betamax ,8 track tapes, and cassettes. All good applications, but no one uses 'em anymore. Andy K3UK Between Olivia, Contestia, RTTYM, I would keep Olivia. MFSK16 may be useful for image transfereven when I prefer Olivia. Hell is different enough to keep as a living fossil. May be fun at times, and would allow a very simple TX. A simple CW transmitter might work. I have never found Domino any better than Olivia. So, I would keep Olivia, MFSK16 and Hell. BTW, did Chip 64 ever get any use ? 73, Jose, CO2JA
