modification

modification

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• A Hairpin match for 5 el. Tonna - An interesting modification to improve the gain of your 5 element Tonna Yagi beam for 50 MHz by roughly 3 db!
  [ Hits: 1962 | Votes: 3 | Rating: 5.67 ]

• MFJ-940 modification - The MFJ-940 VERSA TUNER II is a useful little antenna tuner for the HF-bands. However it suffers from a minor design error, which can be easily rectified.
  [ Hits: 2647 | Votes: 2 | Rating: 7.5 ]

• Acom 1000 70 Mhz modification - ACOM 1000 modification uses electric band switching, such that both 6m and 4m operation can be maintained.
  [ Hits: 1676 | Votes: 0 | Rating: 0 ]

• Heathkit SB-220 - The Heathkit SB-220, two 3-500Z, amplifier made a notable impact in the world of amateur radio when it debuted in 1975. Resources and modifications
  [ Hits: 3825 | Votes: 2 | Rating: 5.5 ]

• YAESU FL-2100Z Amplifier Repairs - The FL-2100Z amplifier referenced in the following images is the 6-Band model covering 10m thru 160m (no WARC bands) and not the 9-Band version that included the WARC bands. Modifications, schematics and manual
  [ Hits: 3479 | Votes: 8 | Rating: 7.25 ]

• Modifications for the Kenwood TS-850 - Another good collection of TS-850 modifications
  [ Hits: 2712 | Votes: 1 | Rating: 10 ]
• Two Kenwood TS850 modifications - Here are two simple modifications / repairs for the Kenwood TS850 HF transceiver, dual receiver mod, and battery pack replacement
  [ Hits: 2952 | Votes: 3 | Rating: 5.67 ]
• Mod to allow separate RX and TX Antennas - This modification will allow the use of separate receive and transmit antennas on the Kenwood TS-850S/AT.
  [ Hits: 1210 | Votes: 2 | Rating: 5.5 ]

• The KA7OEI FT-817 pages - FT-817 Radio Modifications, Improving the FT-817 Noise Blanker, increasing output power, using rechargeable cells, epanding frequency range
  [ Hits: 985 | Votes: 0 | Rating: 0 ]

• Modifications for the Yaesu FT-847 - Some interesting mods for the 847
  [ Hits: 3313 | Votes: 3 | Rating: 4 ]
• FT-847 Modification for UO-12 operations - Istructions to use the IFD demodulator
  [ Hits: 1156 | Votes: 1 | Rating: 1 ]

• FT-897D Modification sheet - Lot's of FT 897 and FT 857 modifications in a single PDF file
  [ Hits: 15165 | Votes: 20 | Rating: 5.75 ]

• Yaesu VX-2R at wikipedia - Wikipedia page dedicated to the popular Yaesu VX-2R transceiver, include informations on modification.
  [ Hits: 1363 | Votes: 1 | Rating: 10 ]

• Modifications to the Ameritron AL-1200 Amplifier - This page describes two modifications W8WWV made to his AL-1200 amplifier. The mods were obtained from Ameritron, so they are official.
  [ Hits: 3042 | Votes: 4 | Rating: 2.75 ]
• AM-6154 FAA Amplifier circuit conversion - AM-6154 222MHz grid Conversion Information by N0UK
  [ Hits: 1508 | Votes: 3 | Rating: 6.33 ]

• KENWOOD TL-922 Modifications - Allow 9 bands and 1300 Watt output on the TL-922 amplifier with this document by PA0FRI
  [ Hits: 2844 | Votes: 9 | Rating: 3.89 ]

• Rotator Brake Delay and Protection Circuit - A rotator modification by W4ZT
  [ Hits: 1389 | Votes: 0 | Rating: 0 ]

• Yaesu FT-1000D HiFi SSB Audio and Mods - Using Hi-Fi Audio with FT-1000. Includes many FT-1000D modifications too by K6JRF
  [ Hits: 4818 | Votes: 9 | Rating: 5.44 ]
• FT-726 AUDIO Modifications - Throughput improvement for the FT726R - Tapr PSK modem
  [ Hits: 815 | Votes: 0 | Rating: 0 ]

• Repeaters: radio modification page - Modifications for motorola and ericsson radio repeater
  [ Hits: 1096 | Votes: 1 | Rating: 1 ]

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