|
Size: 749
Comment:
|
Size: 748
Comment:
|
| Deletions are marked like this. | Additions are marked like this. |
| Line 6: | Line 6: |
| According to [attachment:FrequencyMultiplierRequirement.pdf our requirements] an output level of +36-40 dBm will be needed. | According to [attachment:DesignOfTheMultiplier.pdf our requirements] an output level of +36-40 dBm will be needed. |
| Line 8: | Line 8: |
| The LNOM from Wenzel can output only +20 dBm, thus a high power, low noise amplifier will have to be added. This [attachment: A2CP2596.pdf] by [http://www.cougarcorp.com Teledyne Cougar Corp.] seems to be a good candidate. | The LNOM from Wenzel can output only +20 dBm, thus a high power, low noise amplifier will have to be added. This [attachment:A2CP2596.pdf A2CP2596] by [http://www.cougarcorp.com Teledyne Cougar Corp.] seems to be a good candidate. |
5x Frequency Multiplier
In the Upgraded 40 Meter the 55MHz modulation necessary to generate the second sideband, will be obtained from the first modulation f1=11MHz by means of a 5-time frequency multiplier.
We are going to use a Low Noise Odd-Order Multiplier (LNOM) by [http://www.wenzel.com Wenzel Inc.], with the specs listed in the [attachment:9112501.pdf attached PDF document].
According to [attachment:DesignOfTheMultiplier.pdf our requirements] an output level of +36-40 dBm will be needed.
The LNOM from Wenzel can output only +20 dBm, thus a high power, low noise amplifier will have to be added. This [attachment:A2CP2596.pdf A2CP2596] by [http://www.cougarcorp.com Teledyne Cougar Corp.] seems to be a good candidate.