From October 2001 QST © ARRL
Manufacturer’s Claimed Specifications Measured in the ARRL Lab
Frequency coverage: Receive, 50-54, 136-174 MHz; Receive and transmit, as specified
transmit, 50-54, 144-148 MHz.
Power requirement: Receive, 0.4 A; transmit, 6 A. Receive, 1.4 A (maximum volume); transmit, 4.4 A. Tested at 13.8 V.
Modes of operation: SSB, CW, FM. As specified.
Size (HWD): 2.8×8.5×8.8 inches; weight, 4.5 pounds.
Receiver Receiver Dynamic Testing
SSB/CW sensitivity, 2.4-kHz bandwidth, 10 dB S+N/N: 0.2 µV. Noise floor (MDS), 500-Hz bandwidth:
50 MHz –135 dBm
1
144 MHz –135 dBm
1
FM sensitivity: Not specified. For 12 dB SINAD:
52 MHz 0.72 µV
146 MHz 0.46 µV
Blocking dynamic range: Not specified. Blocking dynamic range, 500-Hz filter:
spacing 20 kHz 5 kHz
50 MHz 125 dB* 68 dB
144 MHz 112 dB*
1
67 dB
Two-tone, third-order IMD dynamic range: Not specified. Two-tone, third-order IMD dynamic range, 500-Hz filter:
spacing 20 kHz 5 kHz
50 MHz 77 dB
1
62 dB
144 MHz 88 dB
1
66 dB
Third-order intercept: Not specified. 50 MHz
2
–16 dBm
1
–54 dBm
144 MHz
2
–1.6 dBm –53 dBm
FM adjacent channel rejection: Not specified. 20-kHz channel spacing: 52 MHz, 61 dB; 146 MHz, 66 dB.
FM two-tone, third-order IMD dynamic range: Not specified. 20-kHz channel spacing: 52 MHz, 63 dB*; 146 MHz, 67 dB*;
10-MHz channel spacing, 52 MHz, 100 dB; 146 MHz, 98 dB.
S-meter sensitivity: 50 µV at S9. S9 signal at 50 MHz: 61 µV; 144 MHz, 67 µV.
Squelch sensitivity: Not specified. At threshold: SSB, 50 MHz, 1.0 µV; FM,
52 MHz, 1.4 µV; 146 MHz, 1.2 µV.
Receiver audio output: Not specified. 2.0 W at 10% THD into 8 Ω.
IF/audio response: Not specified. Range at –6 dB points, (bandwidth):
CW-N (500-Hz bandwidth): 385-1000 Hz (615 Hz);
CW-W: 154-2632 Hz (2478 Hz);
USB-W: 143-2632 Hz (2489 Hz);
LSB-W: 167-2667 Hz (2500 Hz).
Spurious and image rejection: Not specified. First IF rejection, 50 MHz, 33 dB; 144 MHz, 75 dB;
image rejection, 50 MHz, 75 dB; 144 MHz, 89 dB.
Transmitter Transmitter Dynamic Testing
Power output: SSB, CW, FM, 20 W (high); 1 W (low). Typically 19 W high, <1 W low.
Spurious-signal and harmonic suppression: Not specified. 61 dB. Meets FCC requirements for spectral purity.
SSB carrier suppression: Not specified. 60 dB.
Undesired sideband suppression: Not specified. 57 dB.
Third-order intermodulation distortion (IMD) See Figures 1 and 2.
products: Not specified.
CW keying characteristics: Not specified. See Figure 3.
Transmit-receive turn-around time (PTT release to S9 signal, 30 ms.
50% audio output): Not specified.
Receive-transmit turn-around time (tx delay): Not specified. SSB, 10 ms; FM, 7 ms. Unit is suitable for use on AMTOR.
Composite transmitted noise: Not specified. See Figure 4 and 5.
Note: Unless otherwise noted, all dynamic range measurements are taken at the ARRL Lab standard spacing of 20 kHz.
*Measurement was noise-limited at the value indicated.
1
See text.
2
Third-order intercept points were determined using S5 reference.
Table 1
Ten-Tec 6N2, serial number 04C10421
(11 paginas)
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