Mickey, I just used a pair of KPA1500s in the California QSO Party, full bore, CW only, for 24 hours. The performance was solid, no glitches. QSK was silent and fast, so it's safe to use a K3 transce
NY2KW located the document and I've uploaded it here: https://www.kkn.net/~n6tv/Alpha_87A_Memory_Dump.pdf I can't tell who authored it, and I haven't tried it myself. It's been a while since I touche
(Was "Flex Power Genius XL 2KW amplifier") Yes, and in the case of the Elecraft K3 and K3S, it is important to understand that it does *not* work as documented. Yes, that is what the Elecraft menu sa
Sounds good, but it does force you to use an external keyer for QSK instead of the keyer built into the radio. It also won't work with computer-generated CW keying conveniently sent over a rig's "CAT
Using a scope on a Elecraft K3 with KSYN3A upgrade, K3 in SSB mode + VOX, I measured a 30 ms delay between KEY OUT (amp relay) going to ground and the first RF output from the transceiver. That's sig
Good data by W0QE, thanks, but VE7RF's original question was about SSB using VOX, and these measurements were all made using CW. Also, I don't really understand how the HSEND pin on the Icom ACC conn
One should remind 4O3A, K5SDR, and K9CT that the Elecraft K3 typically outputs RF only 6 ms after KEY OUT goes low (with CONFIG: TX DLY nor 008), and only 4.6 ms when CONFIG:CW QRQ is ON. And as W0QE
I have no personal experience getting such a repair, but K0HM advertises a repair service for the 9500: https://www.k0hm.net/ There may be others. 73, Bob, N6TV ______________________________________
From this document <http://www.ab4oj.com/dl/thp/hl2_5kfx/tuning.pdf>: "If the POWER switch is turned on, while OPER/STBY switch is at OPER(operate) position, the orange OPER lamp will blink, and you
Did you use full break-in (QSK mode a lot)? QSK mode will wear out an amp. relay much faster than semi-breakin. Did you use the default IC-7610 MENU: SET > CONNECTORS > Send Relay Type MOS-FET ? This
Well, one must also consider the effects of inflation. I purchased a brand new Alpha 87A in 1993 for $5,490 (I think this included shipping). That's equivalent to $9,740 in today's dollars (source <h
First, you must have the new ACOM RCU with a 15-pin CAT port, otherwise automatic tracking and band change is not supported (except by RF sensing when you transmit). If you have the new ACOM RCU, fir
Do you see the same thing when you view the program on a local computer monitor, or only when viewing it remotely through TeamViewer? If you've only viewed the Alpha 9500 remote software through Team
Sorry, that link talks about TeamViewer 13, and things have changed in TeamViewer 14. From the menu bar select Extras -> Options, then click Remote Control. Try various things in the Quality drop-dow
Hi Tack, According to Page 6 of the ACOM 1010 User Manual <http://www.acom-bg.com/sites/default/files/manuals/ACOM%201010%20Manual.pdf>: "If your line voltage is not 240 V, you must contact your deal
The archives of this reflector may help. Start here <http://lists.contesting.com/pipermail/amps/2019-April/095914.html> and click "next message by thread" at the bottom. Or browse this page <http://l
The Elecraft K3 also has a built-in 2 TONE generator. Switch to SSB mode Set *CONFIG:TECH MD ON* Set *CONFIG:2 TONE ON* Exit the menu and tap the *XMIT* button. You can vary the amplitude of one of t
The new Elecraft K4 XCVR announced at Dayton will support the pre-distortion concept when connecting the KPA1500 "TX SAMPLE" output to the K4 TX SMPL IN connectors. 73, Bob, N6TV ____________________
Did you try disabling AlphaMax by manually tuning the amp with the buttons and saving the solution for each band segment? Maybe the frequency counter was damaged, perhaps by nearby lightening? Or is
Paul, So it looks like the one pictured here: https://forums.qrz.com/index.php?threads/vintage-ge-rectifier.640560/ ? It seems "4JA421" is the GE "series." I don't know what the MX55 means. The one i