Differences

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--- 550 [2007/02/25 18:15]
n5na
+++ 550 [2019/08/11 19:16] (current)
n5na [Mods, Fixes, and Additional Info]
@@ Line 10: / Line 10: @@
   *[[http://www.arrl.org/members-only/prodrev/pdf/pr0002.pdf|ARRL]](Must be ARRL member & logged in to view.)
   *[[http://www.arrl.org/members-only/prodrev/pdf/lab/tt550.pdf|ARRL Expanded Report]](Must be ARRL member & logged in to view.)
+===== Mods, Fixes, and Additional Info =====
+  *[[550vol|Volume & RF Gain Adjustment Mod]]
+  *{{550_audio_io.pdf|Model 550 Audio IO Diagram by 4Z5UN}}
+  *{{550_bbtrx.pdf|Model 550 BBTRX Diagram by 4Z5UN}}
+  *{{550_low_pass_filter.pdf|Model 550 Low Pass Filter Diagram by 4Z5UN}}
+  *{{550_power_control.pdf|Model 550 Power Control Diagram by 4Z5UN}}
 ===== Related Links =====
-  *[[http://www.tentecwiki.org/webarchive/550|Archived Ten-Tec Web Page]]((Minor edits have been made due to unavailability of some elements.))
+  *[[https://tentecwiki.eqth.net/webarchive/550|Archived Ten-Tec Web Page]]
-  *[[http://www.ralabs.com/n4py/|N4PY Rig Control Software]]
+  *[[http://www.n4py.com/|N4PY Rig Control Software]]
+  *[[http://groups.yahoo.com/group/TenTec_Pegasus/|Pegasus Yahoo Group]]
+  *[[pt-11p|Optional Automatic Antenna Tuner]]
+  *[[http://www.callsignsoftware.com/ |Callsign Software]] - Support for this package can be found [[http://groups.yahoo.com/group/CallSignSoftware-Support/ |here]]
+  *[[http://www.dogparksoftware.com/MacLoggerDX.html| MacLoggerDX]] - Support for this package can be found [[http://two.pairlist.net/mailman/listinfo/dogparklist| here]] and [[http://groups.yahoo.com/group/macloggerdx/ |here]]
 ===== Sales Information =====
@@ Line 23: / Line 35: @@
 ==== General ====
+  ***MODES:** LSB, USB, CW, RTTY (AFSK), FM, AM receive only
-**MODES:** LSB, USB, CW, RTTY (AFSK), FM, AM receive only
+  ***FREQUENCY RANGE:** Receive - 100 kHz to 30 MHz. Transmit - all ham bands 160-10 meters
+  ***DISPLAY:** provided by customer's PC
-**FREQUENCY RANGE:** Receive - 100 kHz to 30 MHz. Transmit - all ham bands 160-10 meters
+  ***DUAL VFOs** with SPLIT mode.
+  ***OFFSET TUNING:** +/- 10 kHz receive and transmit
-**DISPLAY:** provided by customer's PC
+  ***MEMORIES:** limited only by available RAM in PC, virtually any PC will store 1000s of memories
+  ***FREQUENCY ACCURACY:** +/-90 Hz at 25 degrees C at 30 MHz for 1 yr
-**DUAL VFOs** with SPLIT mode.
+  ***ANTENNA:** 50 ohms unbalanced.
+  ***POWER REQUIRED:** 1A receive, 20A transmit @ 12-14 VDC
-**OFFSET TUNING:** +/- 10 kHz receive and transmit
+  ***CONSTRUCTION:** 5 epoxy glass PC boards, molded front panel, aluminum chassis, texture painted steel cover
+  ***DIMENSIONS:** HWD 10.75" x 5.125" x 11.5" / 27.3 x 13 x 29.2 cm
-**MEMORIES:** limited only by available RAM in PC, virtually any PC will store 1000s of memories
+  ***WEIGHT:** 9 lbs - 4.1 kg
-**FREQUENCY ACCURACY:** +/-90 Hz at 25 degrees C at 30 MHz for 1 yr
-**ANTENNA:** 50 ohms unbalanced.
-**POWER REQUIRED:** 1A receive, 20A transmit @ 12-14 VDC
-**CONSTRUCTION:** 5 epoxy glass PC boards, molded front panel, aluminum chassis, texture painted steel cover
-**DIMENSIONS:** HWD 10.75" x 5.125" x 11.5" / 27.3 x 13 x 29.2 cm
-**WEIGHT:** 9 lbs - 4.1 kg
 ==== Transmitter ====
+  ***RF OUTPUT:** 5-100 watts, ALC stabilized.
-**RF OUTPUT:** 5-100 watts, ALC stabilized.
+  ***DC INPUT:** maximum 250 watts @ 14 VDC. 100% duty cycle for up to 20 minutes. Continuous duty with customer supplied air cooling of rear panel heat sink.
+  ***MICROPHONE INPUT:** 200 to 50K ohms. 4 pin, front panel connector accepts microphones with 5 mv (-67 dB) output. Polarizing voltage provided for electrets.
-**DC INPUT:** maximum 250 watts @ 14 VDC. 100% duty cycle for up to 20 minutes. Continuous duty with customer supplied air cooling of rear panel heat sink.
+  ***T/R SWITCHING:** PTT or VOX on SSB, QSK on CW.
+  ***CW OFFSET:** Programmable 400 to 900 Hz, DSP generated. Sidetone automatically matches offset, volume adjustable independent of AF GAIN control.
-**MICROPHONE INPUT:** 200 to 50K ohms. 4 pin, front panel connector accepts microphones with 5 mv (-67 dB) output. Polarizing voltage provided for electrets.
+  ***FM DEVIATION:** +/- 5 kHz.
+  ***METERING:** Switchable to forward power, reflected power or SWR.
-**T/R SWITCHING:** PTT or VOX on SSB, QSK on CW.
+  ***SSB GENERATION:** DSP generated
+  ***CARRIER SUPPRESSION:** > 50 dB
-**CW OFFSET:** Programmable 400 to 900 Hz, DSP generated. Sidetone automatically matches offset, volume adjustable independent of AF GAIN control.
+  ***UNWANTED SIDEBAND SUPPRESSION:** > 60 dB at 1.5 kHz tone
+  ***THIRD ORDER INTERMOD:** 25 dB below two tone @ 100 watts PEP
-**FM DEVIATION:** +/- 5 kHz.
+  ***SPURIOUS OUTPUT:** Better than 40 dB below peak power output
-**METERING:** Switchable to forward power, reflected power or SWR.
-**SSB GENERATION:** DSP generated
-**CARRIER SUPPRESSION:** > 50 dB
-**UNWANTED SIDEBAND SUPPRESSION:** > 60 dB at 1.5 kHz tone
-**THIRD ORDER INTERMOD:** 25 dB below two tone @ 100 watts PEP
-**SPURIOUS OUTPUT:** Better than 40 dB below peak power output
 ==== Receiver ====
+  ***SENSITIVITY:** .35uV typical for 10 dB S+N/N @ 3 kHz bandwidth, SSB mode.
-**SENSITIVITY:** .35uV typical for 10 dB S+N/N @ 3 kHz bandwidth, SSB mode.
+  ***SELECTIVITY:** 34 filters built-in; 300 Hz, 330 Hz, 375-750 Hz in 75 Hz increments, 900-3000 Hz in 150 Hz increments, 3.3-6.0 kHz in 300 Hz increments, 8.0 kHz. All 1.5:1 shape factor or better.
+  ***DYNAMIC RANGE:** 90 dB @ 3 kHz bandwidth at 50 kHz spacing
-**SELECTIVITY:** 34 filters built-in; 300 Hz, 330 Hz, 375-750 Hz in 75 Hz increments, 900-3000 Hz in 150 Hz increments, 3.3-6.0 kHz in 300 Hz increments, 8.0 kHz. All 1.5:1 shape factor or better.
+  ***THIRD ORDER INTERCEPT:** +10 dBm
+  ***NOISE FLOOR:** -126 dBm @ 3 kHz bandwidth
-**DYNAMIC RANGE:** 90 dB @ 3 kHz bandwidth at 50 kHz spacing
+  ***S-METER:** Calibrated to 50 uv at S9
+  ***ATTENUATOR:** -20 dB
-**THIRD ORDER INTERCEPT:** +10 dBm
+  ***PASSBAND TUNING:** +/- 2 kHz
+  ***I-F FREQUENCIES:** 1st I-F 45 MHz, 2nd I-F 455 kHz, 3rd I-F 12 kHz
-**NOISE FLOOR:** -126 dBm @ 3 kHz bandwidth
+  ***I-F REJECTION:** > 60 dB typical
+  ***IMAGE REJECTION:** > 60 dB typical
-**S-METER:** Calibrated to 50 uv at S9
+  ***RECEIVE RECOVERY TIME:** less than 20ms, including split mode
+  ***AUDIO:** speaker - 2 watt @ 4 ohms, line out - > 1 V p-p into 600 ohms
-**ATTENUATOR:** -20 dB
-**PASSBAND TUNING:** +/- 2 kHz
-**I-F FREQUENCIES:** 1st I-F 45 MHz, 2nd I-F 455 kHz, 3rd I-F 12 kHz
-**I-F REJECTION:** > 60 dB typical
-**IMAGE REJECTION:** > 60 dB typical
-**RECEIVE RECOVERY TIME:** less than 20ms, including split mode
-**AUDIO:** speaker - 2 watt @ 4 ohms, line out - > 1 V p-p into 600 ohms

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