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1. [AMPS] TS930s-SB220 Interface (score: 1): Author: schaier@avotec.com (Len Schaier); Date: Mon, 01 Dec 1997 07:38:00 -0500; Rich, Is hot switching bad? Len -- FAQ on WWW: http://www.contesting.com/ampfaq.html Submissions: amps@contesting.com Administrative requests: amps-REQUEST@contesting.com Problems: owner-amps@contest; /archives//html/Amps/1997-12/msg00004.html (9,058 bytes)
2. [AMPS] TS930s-SB220 Interface (score: 1): Author: measures@vc.net (Rich Measures); Date: Mon, 1 Dec 97 08:18:55 -0800; Not if you own the only store that sells replacement relays. Rich... R. L. Measures, 805-386-3734, AG6K -- FAQ on WWW: http://www.contesting.com/ampfaq.html Submissions: amps@contesting.com Administ; /archives//html/Amps/1997-12/msg00006.html (7,799 bytes)
3. [AMPS] TS930s-SB220 Interface (score: 1): Author: schaier@avotec.com (Len Schaier); Date: Mon, 01 Dec 1997 11:36:30 -0500; Rich, I am rapidly getting the feeling that I totally misunderstood what everybody meant by "hot switching". I thought it meant that the transceiver was seeing undesirable transients because it chang; /archives//html/Amps/1997-12/msg00007.html (8,499 bytes)
4. [AMPS] TS930s-SB220 Interface (score: 1): Author: philk5pc@connect.net (Phil Clements); Date: Mon, 1 Dec 1997 10:58:15 -0600; Also, if one enjoys the refreshing smell of ozone in the shack from the arcing of the tune capacitor, or heaven forbid, the band switch, it wouldn't be bad. After several hot switches, a layer of car; /archives//html/Amps/1997-12/msg00008.html (8,851 bytes)
5. [AMPS] TS930s-SB220 Interface (score: 1): Author: km1h@juno.com (km1h @ juno.com); Date: Mon, 01 Dec 1997 14:29:09 EST; I ran that combination for many years Len. Never had a problem. Today, I would suggest adding 150-180 Ohms in series with the relay lead inside the SB-220 and right at the phono plug. This will limit; /archives//html/Amps/1997-12/msg00010.html (9,584 bytes)
6. [AMPS] TS930s-SB220 Interface (score: 1): Author: n4zr@contesting.com (Pete Smith); Date: Mon, 01 Dec 1997 22:32:42; In my experience (sample size of 1) The 930 definitely switches faster than the 220, even with the big relay in the 930. You can see this because the first dit of each CW transmission shows high SWR,; /archives//html/Amps/1997-12/msg00015.html (9,223 bytes)
7. [AMPS] TS930s-SB220 Interface (score: 1): Author: w8ik@ibm.net (Joe Subich, W8IK); Date: Mon, 01 Dec 1997 20:36:22 -0500; In general PIN diodes have a limited current carrying capacity even when forward biased (biased ON). As the antenna system SWR increases, particularly with a LOW Z (open circuit with a 1/4 wave of fe; /archives//html/Amps/1997-12/msg00020.html (9,142 bytes)
8. [AMPS] TS930s-SB220 Interface (score: 1): Author: philk5pc@connect.net (Phil Clements); Date: Mon, 1 Dec 1997 19:55:19 -0600; snip...... Ameritron had very little to do with the QSK boards. These are the tried and true circuits developed by Heath for the SB-1000. I have had NO problems with several models of Heath/Ameritron; /archives//html/Amps/1997-12/msg00021.html (8,709 bytes)
9. [AMPS] TS930s-SB220 Interface (score: 1): Author: measures@vc.net (Rich Measures); Date: Tue, 2 Dec 97 02:30:58 -0800; Hotswitching usually means that the transceiver begins delivering RF before the amplifier relay contacts have closed and stopped bouncing. The way to tell if this is the case is to watch the SWR ind; /archives//html/Amps/1997-12/msg00031.html (9,298 bytes)
10. [AMPS] TS930s-SB220 Interface (score: 1): Author: schaier@avotec.com (Len Schaier); Date: Tue, 02 Dec 1997 09:09:02 -0500; Rich, Since I don't use CW breakin so I don't expect a problem in that mode. One last question: lets say I take care of the delays on transmit. Is there a potential problem going back to receive. Can; /archives//html/Amps/1997-12/msg00034.html (10,474 bytes)
11. [AMPS] TS930s-SB220 Interface (score: 1): Author: measures@vc.net (Rich Measures); Date: Tue, 2 Dec 97 08:38:40 -0800; The hotswitching problem is not confined to CW. The period in mS from PTT closure to RF out is identical to that on QSK-CW. Ditto for VOX operation. Ditto for AM operation. Not likely - Modern trans; /archives//html/Amps/1997-12/msg00035.html (8,477 bytes)
12. [AMPS] TS930s-SB220 Interface (score: 1): Author: schaier@avotec.com (Len Schaier); Date: Sun, 30 Nov 1997 20:51:37 -0500; Hello All, I will be using my TS930s to drive an SB220 I recently purchased and will be receiving in a few days. The TS930s has an the internal relay intended to operate an amps T/R relay. One side o; /archives//html/Amps/1997-11/msg00004.html (6,930 bytes)

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