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-
- Variable power on all modes inc "FM" TS430S
- ===========================================
-
- ______________________
- | |
- | MIN |
- - /
- battery 9v power \ <---------\/\/\/--------o PIN 6
- + | /
- | \
- | MAX |
- |____________________|-------------------------o Earth
-
- Both resistors are 100K and you will find the Earth and the PIN 6 on the
- remote socket.
- This is meant for FM use but it works well on SSB, so is handy for QRP work.
-
- Paul G0HWC @ GB7AAA
-
-
- TS430S RX MOD 0 - 150 KHz
- ==========================
-
- 1) Remove the bottom cover from your radio.
- 2) Locate the PLL unit
- 3) Locate R52 (47k) this can be found next to TP1
- 4) Cut R52.
- 5) Put your lids back on your radio
-
- You will now have FULL RX from 0 to 30 MHz.
-
- Paul G0HWC @ GB7AAA
-
-
- MODIFYING THE TS430S FOR AMTOR/PACKET
- =====================================
-
- "IF Board"
-
- 1) Change C164 from 0.22uF to 0.01uF.
- 2) Change C60 from 10uF to 4.7uF.
- 3) Change C57 from 0.47uF to 0.1uF.
- 4) Remove C58.
- 5) Remove R97 and replace with wire link.
- 6) Change R96 from 100k to 47k.
- 7) Locate 3 spare switch terminals on the 1MHz band switch.
- 8) Connect middle contact to earth.
- 9) Lift earthy end of C159 and connect to N/C contact with length of wire.
- 10) Connect lenght of wire from N/O contact to cathode of D45.
- 11) This switch when pushed in speeds up the AGC for Amtor/Packet use.
- 12) If you are useing a CW or SSB filter add 10uF across C10 or C8 depending
- on what filter in use, this removes switching clicks.
-
- Paul, G0HWC @ GB7AAA
-
- MODIFYING THE TS430S FOR AMTOR/PACKET
- =====================================
-
- "IF Board"
-
- 1) Change C164 from 0.22uF to 0.01uF.
- 2) Change C60 from 10uF to 4.7uF.
- 3) Change C57 from 0.47uF to 0.1uF.
- 4) Remove C58.
- 5) Remove R97 and replace with wire link.
- 6) Change R96 from 100k to 47k.
- 7) Locate 3 spare switch terminals on the 1MHz band switch.
- 8) Connect middle contact to earth.
- 9) Lift earthy end of C159 and connect to N/C contact with length of wire.
- 10) Connect lenght of wire from N/O contact to cathode of D45.
- 11) This switch when pushed in speeds up the AGC for Amtor/Packet use.
- 12) If you are useing a CW or SSB filter add 10uF across C10 or C8 depending
- on what filter in use, this removes switching clicks.
-
- Paul, G0HWC @ GB7AAA
-
-
- TS430S Amtor Modifications
- ==========================
-
- A collection of mods by David GM4JJJ.
-
- Before any modifications were done the switching times were:-
- Rx to TX 12mS to full power O/P.
- TX to RX 50mS for full audio recovery.
-
- After modificaton they were:-
- Rx to TX 6mS to full power O/P
- TX to RX 10mS for full audio recovery.
-
- Mods done were:- (All on I.F. Board)
-
- 1) Change C164 from 0.22uF to 0.01uF (Speeds up RX regulator recovery)
- 2) Change C60 from 10uF to 4.7uF (Speeds up TX regulator)
- 3) Change C57 from 0.47uF to 0.1uF (Reduce coupling on O/P of AF amp)
- 4) Remove C58 0.22uF (reduce effect of squelch on I/P to AF preamp)
- 5) Change R96 from 100K to 85K (as above)
- 6) Locate 3 spare contacts on 1MHz band switch
- 7) Connect middle contact to earth
- 8) Lift earthy end of C159 and connect N/C contact of switch with length of
- wire.
- 9) Connect length of wire between N/O contact and cathode of D45
- 10) The 1MHz switch now speeds up the AGC for Amtor use.
- 11) On the Switch board short out B to E of transistor Q5. This stops the RF
- attenuator from coming on on TX and stops clicking noise from relay.
-
- I have seen some other modifications published and have either tried them and
- found them unsatisfactory or they are implemented in a better way already.
- Indeed one mod that I was told about actually produced more problems by way
- of a click from the audio when the Tx came on, which caused the AGC on the
- modem in the TNC to blank the audio on the following RX block!
-
- If you want a narrow filter for Amtor then fit the 500Hz CW filter in the
- Narrow SSB position and then use the IF shift to get the centre frequency
- correct. This works very well indeed.
-
- 73 David GM4JJJ @ GB7SNE
-
-
- Changing FM to 10KHz on TS430S
- ==============================
-
- 1) Take the top off the set and remove the FM board.
- 2) Locate CF1 and remove it.
- 3) Add short link to new filter legs as shown in FIG 1
- 4) Tape filter in board with D/sided tape.
- 5) Put a link fron the 3 solderd together legs to one of the "C" pads FIG 2.
- 6) Solder "A" on filter to pad "A" on board.
- 7) Solder "B" on filter to pad "B" on board.
- 8) Refit board and test FM will now be 10Hz.
-
- FIG 1 "the new filter"
- ======================
- _____________
- | | Filter shown from bottom
- | B |
- | |
- |A C--C--C | <----Link C to C to C
- |___________|
-
- FIG 2 your FM board "component side"
- ====================================
- ________________________________________________________________
- |
- |
- | X1
- | -|!|-
- |
- |
- |
- | CF1
- | ________
- | | c c |
- | | a b |
- | -------- FM-430
- |_______________________________________________________________
-
-
- The filter that you need is CFW455G price about 3 from Cirkit.
-
- G0HWC Sysop @ GB7AAA
-
-