Themabewertung:
  • 0 Bewertung(en) - 0 im Durchschnitt
  • 1
  • 2
  • 3
  • 4
  • 5
Hammerlund (Hammarlund) Fm50a
#21
Der ist fast dabei......147 bis 174 MHz.

Hier mal zur Info eine Tabelle

http://www.darc.de/uploads/media/OV-Frequenzen-1502.pdf
Gruß
aus der Stadt der Rodgau Monotones
Georg



Zitieren
#22
deswegen meinte ich das ja, 2m belegt 144 bis 146MHz das mag der

lG Martin
wenn die Welt untergeht sieht man es zuerst auf dem Oszilloskop
Zitieren
#23
Seit gestern ist auch die Sendestufe getestet, Funktioniert am Dummy. 30 Watt HF! Frequenzstabilität: Achtung!:0,0005%(-30-+60Grad Celsius)

- --
FM-50-A TECHNICAL SPECIFICATIONS
Frequency Range:
Transmitter:
FCC File #
Power Output into 50 ohm load:
Duty Cycle:
Crystal Multiplication: Frequency Stability:
Modulation: Modulation Limiting:
Audio Response:
Distortion:
Spurious & Harmonic Radiation: Hum & Noise:
Receiver:
Frequency Stability: Sensitivity: Selectivity:
Spurious Response Attention: Intermodulation Spurious
Attention: System Audio Response: Audio Output:
Hum & Noise Level
Squelch:
Duty Cycle:
Crystal Frequency Formula:
I~
147 to 174 Mcs, on any single channel (not necessarily the same for receiving and transmitting)
Hammarlund Type FM-50-A
117V AC operation, 35 watts (00%) 12V DC operation, 30 watts (±10%) 6V DC operation, 20 watts (±10%)
117V AC -1 min. on, 1 min. off 12V DC -1 min. on, 4 min. off 6VDC -1min. on, 4min. off
Twelve Times 0 0.0005% (_300 to + 60 C ambient temperature range) OVEN CONTROLLED 16F3, ±5Kc deviation for 100% modulation at 1000 cps Instantaneous and automatic, . 25V rms input at 1000 cps for thresh-hold of limiting +1 to -3 db from 300 to 3000 cps, 1000 cps reference
Less than 10% at 3.5 Kc deviation, 1000 cps modulating frequency
At least 60 db down At least 40 db below ±3. 3 Kc deviation, 1000 cps reference
See transmitter specifications above
0.5 microvolt or less for 20 db quieting ±5 KC (or greater) at 6 db down ±17 KC (or less) at 100 db down
At least 90 db down
At least 65 db down ±2 db from 300 to 2500 cps, 1000 cps reference At least 1. 0 watt at less than 10% distortion into built-in speaker
Squelched, at least 50 db down from rated output Unsquelched, at least 40 db down from rated output
Signal to noise ratio type, front panel adjustable, . 15 microvolt or less at thresh-hold Continuous Signal Frequency -10.7 MC
Gruß
aus der Stadt der Rodgau Monotones
Georg



Zitieren


Gehe zu: