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249 [2007/02/14 16:06] n5na created |
249 [2007/05/21 00:41] 127.0.0.1 external edit |
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| ====== Noise Blanker Model 249 ====== | ====== Noise Blanker Model 249 ====== | ||
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| ===== Description ===== | ===== Description ===== | ||
| - | Plug-in PC assembly for Models [[540]] and [[544]]. Effectively blanks most impulse noise. Blanker is inserted into receiving I-F channel. Disabling switch on front panel. | + | Plug-in PC assembly for Models [[540]] and [[544]]. Effectively blanks most impulse noise. Blanker is inserted into receiving I-F channel. Disable with switch on ALC control. For [[540]] transceivers with serial numbers not starting with "T" and below 01349, order Model 249/MK. |
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| + | ===== Specifications ===== | ||
| + | ***Input Frequency:** 9 MHz. | ||
| + | ***Signal Gain:** 0 dB. | ||
| + | ***Semiconductors:** 1 IC, 6 transistors, 2 diodes. | ||
| + | ***Powered by transceiver** | ||
| + | ***Size:** HWL 3/4" x 2-5/8" x 4" | ||
| + | ***Weight:** 1.5 oz. | ||
