| GENERAL |
| Type: | HF receiver |
| Frequency range: |
0.03-30 MHz
|
| Tuning steps: |
| AM: | 50 Hz |
| AMS/SSB/CW: | 8 Hz |
| FM: | 125 Hz |
|
| Frequency stability: | ±30 Hz per hour @ 20°C (68°F)
±1 ppm @ 0 to 50°C (32 to 122°F), with high stability option |
| Mode: | AM / SSB / CW (FM and AM-Sync (AMS) option) |
| Channels / memory management: |
30 regular
|
| Power supply: | Mains: 100-120 / 200-240 VAC (3-pin IEC C14 connector)
or 12-40 VDC |
| Current drain / power consumption: | 300-400 mA |
| Antenna impedance / connector: | 50 ohm / BNC |
| Dimensions (W*H*D): | Overall: 483*88*320 mm (19*3.46*12.6") |
| Weight: | 5.5 Kg (12.13 lb) |
| Other features: | PC-control option. NB. Attenuator (20 dB). 200 Hz CW audio peak filter. |
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| RECEIVER SECTION |
| Receiver system: |
Double conversion superheterodyne
1st IF: 45 MHz
2nd IF: 455 KHz
|
| Sensitivity: |
AM (No reference)
0.06-2 MHz: <1.5 uV
2-30 MHz: <1 uV
FM (No reference)
0.06-2 MHz: <1.2 uV
2-30 MHz: <0.9 uV
SSB (No reference)
0.06-2 MHz: <0.7 uV
2-30 MHz: <0.5 uV
|
| Selectivity: |
AM/AMS/SSB (Selectable)
2.3 KHz (-6 dB), 3.4 KHz (-60 dB)
5.9 KHz (-6 dB), 9.8 KHz (-60 dB)
8.8 KHz (-6 dB), 12.9 KHz (-60 dB)
10.5 KHz (-6 dB), 21.5 KHz (-60 dB)
FM
12 KHz (No reference)
CW
2.3 KHz (-6 dB), 3.4 KHz (-60 dB)
|
| Image rejection: | |
| AF output power / speaker: | 2.5 W at 5% distortion / 8 ohm
3.5 W at 5% distortion / 4 ohm |
| External speaker connector: | |
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| MISCELLANEOUS |
| Manufactured: | England, 1990-199x (Discontinued) |
| Additional info: | |
| Related documents: | User manual (7.5 MB) |
| Modifications and fixes: | |
| Reviews: | |
| Options / Accessories: |
C-235
D-225
HF-235/F
HF-235/H
HF-235/R
S-225
|
Desktop case
FM and AMS detector unit
FAX mode substituted for LSB mode
High stability option (TCXO)
Remote control option (RS-232C)
External speaker, 8 ohm
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