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AE5ME > TECH 28.03.16 15:44l 33 Lines 1923 Bytes #999 (0) @ WW
BID : 34436_AE5ME
Read: GUEST
Subj: //WL2K Re:TS-700A mods
Path: IW8PGT<IZ3LSV<I0OJJ<N6RME<CX2SA<N0KFQ<AE5ME
Sent: 160328/0248Z 34436@AE5ME.#NEOK.OK.USA.NOAM BPQ1.4.64
One mod that comes to mind is opening it up to use 9600 baud packet. See below from back in 1991 by VK5HI:
1st March 1991
I connected the 9600 baud input directly across R21 (33 kilohm) on the Generator Unit Board via a 10 microfarad tantalum capacitor.
The + of the tantalum is connected to the junction of C23,R21 and R22.
The - of the tantalum goes to the conductor of the shielded cable, and the earth shield to the immediately adjacent earth terminal.
I carefully scraped off the 'insulation' on the top of R21 (approx 5mm) and soldered the + of the tantalum to it.
The 10 microfarads was basically for isolation. I originally intended to match the load as per James Millers article by modifying C34, however I just adjusted VR1 and because it works like a charm I have never bothered to attempt matching.
I have also been meaning to run the JAS-1 via the varactor for Fuji-Oscar 20, but once again have not got around to it. With the launch of all the Digital Satellites, time just seems to fly, especially when we have daylight saving, as the first evening pass goes by between 11pm and 12 midnight. Just lately I have been going to bed at a respectable hour, hence the dealy in answering.
However this weekend Daylight Saving finishes, so UO_14 and AO_16 will be here 'an hour earlier', which will be just great.
Trust the information is what you require. The 'old' TS-700a at this QTH is a very reliable and whats more one of my 'very sentimental' pieces of equipment. Do not think I could ever part with it. HI!!!!!
73 from "down under". de Colin VK5HI.
----- Message from KD5NJR sent 2016/03/27 03:20 -----
Message ID: 0QU1SCNMKU71
Date: 2016/03/27 03:20
From: KD5NJR
To: tech@ww
Source: KD5NJR
Subject: TS-700A mods
R:160327/0325Z 34356@AE5ME.#NEOK.OK.USA.NOAM BPQ1.4.64
Does anyone have some simple tips for improving the performance of the old TS-700A all-mode rig ?
Thanks
Scott
kd5njr
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