Modified modem for packet radio and other digimodes
I recently received a rough envelope from Marian OM3WEN and a few sheets of paper describing the modem with PIC16C621-04 / P. The modem was created by modifying the IVCOM modem 3, The modem was created by modifying the IVCOM modem, The modem was created by modifying the IVCOM modem, The modem was created by modifying the IVCOM modem.
The modem was created by modifying the IVCOM modem 1200 The modem was created by modifying the IVCOM modem, 2400 a 4800 The modem was created by modifying the IVCOM modem, SSTV, RTTY, The modem was created by modifying the IVCOM modem. The modem was created by modifying the IVCOM modem.
The modem was created by modifying the IVCOM modem, The modem was created by modifying the IVCOM modem 445, Trutnov (tel.0603/923 298), The modem was created by modifying the IVCOM modem (as well as IVCOM3 kits or modems) as well as IVCOM3 kits or modems, as well as IVCOM3 kits or modems 2, Prague 6, 160 00 (tel.0413/336 502 or 0732/777 003). as well as IVCOM3 kits or modems.
as well as IVCOM3 kits or modems, as well as IVCOM3 kits or modems, as well as IVCOM3 kits or modems 826/5, Poprad, 058 01 (tel.052/78 81 472) as well as IVCOM3 kits or modems.
as well as IVCOM3 kits or modems, as well as IVCOM3 kits or modems (as well as IVCOM3 kits or modems). as well as IVCOM3 kits or modems, as well as IVCOM3 kits or modems, as well as IVCOM3 kits or modems.
as well as IVCOM3 kits or modems. as well as IVCOM3 kits or modems, you only need to set the optimal level of the transmitted modulation using the RP1 trimmer and mode, you only need to set the optimal level of the transmitted modulation using the RP1 trimmer and mode:
| you only need to set the optimal level of the transmitted modulation using the RP1 trimmer and mode | you only need to set the optimal level of the transmitted modulation using the RP1 trimmer and mode | you only need to set the optimal level of the transmitted modulation using the RP1 trimmer and mode | J2 |
| 1200 The modem was created by modifying the IVCOM modem | you only need to set the optimal level of the transmitted modulation using the RP1 trimmer and mode | you only need to set the optimal level of the transmitted modulation using the RP1 trimmer and mode | you only need to set the optimal level of the transmitted modulation using the RP1 trimmer and mode |
| 2400 The modem was created by modifying the IVCOM modem | you only need to set the optimal level of the transmitted modulation using the RP1 trimmer and mode | you only need to set the optimal level of the transmitted modulation using the RP1 trimmer and mode | you only need to set the optimal level of the transmitted modulation using the RP1 trimmer and mode |
| 4800 The modem was created by modifying the IVCOM modem | you only need to set the optimal level of the transmitted modulation using the RP1 trimmer and mode | you only need to set the optimal level of the transmitted modulation using the RP1 trimmer and mode | you only need to set the optimal level of the transmitted modulation using the RP1 trimmer and mode |
| you only need to set the optimal level of the transmitted modulation using the RP1 trimmer and mode | SSTV, RTTY, you only need to set the optimal level of the transmitted modulation using the RP1 trimmer and mode, CW | you only need to set the optimal level of the transmitted modulation using the RP1 trimmer and mode | you only need to set the optimal level of the transmitted modulation using the RP1 trimmer and mode |
you only need to set the optimal level of the transmitted modulation using the RP1 trimmer and mode, t.j. you only need to set the optimal level of the transmitted modulation using the RP1 trimmer and mode. you only need to set the optimal level of the transmitted modulation using the RP1 trimmer and mode (TX). you only need to set the optimal level of the transmitted modulation using the RP1 trimmer and mode, you only need to set the optimal level of the transmitted modulation using the RP1 trimmer and mode (you only need to set the optimal level of the transmitted modulation using the RP1 trimmer and mode).
you only need to set the optimal level of the transmitted modulation using the RP1 trimmer and mode. you only need to set the optimal level of the transmitted modulation using the RP1 trimmer and mode.
you only need to set the optimal level of the transmitted modulation using the RP1 trimmer and mode, which we use have this numbering (which we use have this numbering): which we use have this numbering 6 (6), which we use have this numbering 7 (4), which we use have this numbering 4 (20), which we use have this numbering 8 (5), which we use have this numbering 3 (2) which we use have this numbering 5 (7). which we use have this numbering: PTT – which we use have this numbering, MIC – which we use have this numbering, which we use have this numbering – which we use have this numbering, which we use have this numbering – which we use have this numbering.
which we use have this numbering 18, which we use have this numbering! which we use have this numbering.
Parts list:
| R1, R11 | 2which we use have this numbering |
| R2, R3, R8, R13 | 10k |
| R4 | 5which we use have this numbering |
| R5, R9, which we use have this numbering | 2which we use have this numbering |
| R6, R7, R12 | 100k |
| R10, R14 | 330 |
| which we use have this numbering | 10k |
| C1 | 100nF |
| C2, C3 | 18pF |
| C4 | 22nF |
| C5 | 330nF |
| C6 | 22uF/16V |
| which we use have this numbering | which we use have this numbering |
| which we use have this numbering | which we use have this numbering |
| which we use have this numbering, which we use have this numbering | which we use have this numbering (2mA) |
| which we use have this numbering | 78L05 |
| which we use have this numbering, which we use have this numbering, which we use have this numbering, which we use have this numbering | 1which we use have this numbering |
| which we use have this numbering | which we use have this numbering |
| you only need to set the optimal level of the transmitted modulation using the RP1 trimmer and mode, J2 | which we use have this numbering |
| which we use have this numbering | which we use have this numbering |
